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sidsel.svein(at)oslo.onli
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 Posted: Tue Sep 12, 2006 8:35 am Post subject: First flight LN-SKJ |
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All,
Late this morning I took my Europa XS trigear on its first flight from Kjeller airfield outside Oslo (ENKJ, known to some of the readers of this forum from visits with their Europas).
I followed the first flight program recommended in Europa Owner's Manual, but I must admit that I had a very strong urge to take it on a really long flight!
Although I have flown the Europa at a demo flight in Lakeland, I still find it an amazing aircraft to fly. So nimble yet so stable. I was checked out on the Diamond Katana a couple of weeks ago - not even close to Europa when it comes to "fun to fly".
Left wing is a bit heavy when letting go of the stick, and so am I but whether this is the reason will be checked out on subsequent flights with more equal loading. Clean stall at abt 51 kt, full flap stall at abt 42 kt (to be reconfirmed later in the test program). Left wing drop in both configurations but quite undramatic all told and very easy and quick to recover from the stall.
Duration 20 minutes in the air, absolutely uneventful except some shimmy of the nosewheel on touchdown. I have evidenty loosened the shimmy damper nut too much to get easy steering, so this will have to be tightened up a bit.
The engine sings like it enjoys what it is doing, and the temps etc. were all well within limits.
The only problem occured when opening the canopy afterwards for the photographer. I wanted a "cool" picture of myself, but that well-known Europa flier grin just sat there!
So the stats, Rowland:
- Europa XS trigear
- Kit no. A225
- Rotax 912ULS
- Airmaster A332 with Warp blades
- Build time 4 years 9 months - 3300 hrs of which 300 filling and sanding (should have filled less and sanded more, see next item!)
- Empty weight, with fairings and all the options plus some, steel nosewheel springs, heavy leather interior trim: 966 lbs
(the good thing, though, is that CG is right where it should be at 60.2 in and that the Norwegian CAA has approved 1450 lbs MTOW)
A profound "thank you" goes to all on this forum for help and support through the building period; to Andy (whose address I unfortunately do not have), Roger and John at Europa; to Neville (who is worth his weight in gold); and last but not least to my fellow builders here in Norway for invaluable contributions leading up to this most fantastic day!
Best regards,
Svein
LN-SKJ
[quote][b]
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jeff(at)rmmm.net
Guest
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| Posted: Tue Sep 12, 2006 9:06 am Post subject: First flight LN-SKJ |
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Congratulations Svein!
You have just found out what this is all about. Quite possibly we all
have the nicest 2 seat plane on the planet. Others building will find
it out and thoses of us flying know it. Again congratulations you've
joined the ranks of the flying!
Best Regards
Jeff
N128LJ Gold Rush (at) 37.7 hours. Hold on Jeff I'm coming!
On Sep 12, 2006, at 11:32 AM, Sidsel & Svein Johnsen wrote:
| Quote: | All,
Late this morning I took my Europa XS trigear on its first flight from
Kjeller airfield outside Oslo (ENKJ, known to some of the readers of
this forum from visits with their Europas).
I followed the first flight program recommended in Europa Owner's
Manual, but I must admit that I had a very strong urge to take it on a
really long flight!
Although I have flown the Europa at a demo flight in Lakeland, I still
find it an amazing aircraft to fly. So nimble yet so stable. I was
checked out on the Diamond Katana a couple of weeks ago - not even
close to Europa when it comes to "fun to fly".
Left wing is a bit heavy when letting go of the stick, and so am I but
whether this is the reason will be checked out on subsequent flights
with more equal loading. Clean stall at abt 51 kt, full flap stall at
abt 42 kt (to be reconfirmed later in the test program). Left wing
drop in both configurations but quite undramatic all told and very
easy and quick to recover from the stall.
Duration 20 minutes in the air, absolutely uneventful except some
shimmy of the nosewheel on touchdown. I have evidenty loosened the
shimmy damper nut too much to get easy steering, so this will have to
be tightened up a bit.
The engine sings like it enjoys what it is doing, and the temps etc.
were all well within limits.
The only problem occured when opening the canopy afterwards for the
photographer. I wanted a "cool" picture of myself, but that
well-known Europa flier grin just sat there!
So the stats, Rowland:
- Europa XS trigear
- Kit no. A225
- Rotax 912ULS
- Airmaster A332 with Warp blades
- Build time 4 years 9 months - 3300 hrs of which 300 filling and
sanding (should have filled less and sanded more, see next item!)
- Empty weight, with fairings and all the options plus some, steel
nosewheel springs, heavy leather interior trim: 966 lbs
(the good thing, though, is that CG is right where it should be at
60.2 in and that the Norwegian CAA has approved 1450 lbs MTOW)
A profound "thank you" goes to all on this forum for help and support
through the building period; to Andy (whose address I unfortunately do
not have), Roger and John at Europa; to Neville (who is worth his
weight in gold); and last but not least to my fellow builders here in
Norway for invaluable contributions leading up to this most fantastic
day!
Best regards,
Svein
LN-SKJ
|
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Dave Miller
Joined: 10 Jan 2006
Posts: 51
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| Posted: Tue Sep 12, 2006 9:07 am Post subject: First flight LN-SKJ |
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Congratulations Svein,
I hope test flying goes well, and that winter does not come too early in your part of the world.
I had a heavy left wing, as did the other Europa at my local airport, both cured with a small tab on the right aileron.
Perhaps it was the build, but I think it has more to do with the prop rotation.
Dave C-FBZI, tri-gear, 912S, woodcomp
Do not archive [quote][b]
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ptag.dev(at)tiscali.co.uk
Guest
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| Posted: Tue Sep 12, 2006 11:16 am Post subject: First flight LN-SKJ |
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Hi! Svein,
Congratulations on your achievement.
Just this afternoon I was with Roger Cullum who built the original G-OGAN polystyrene wings . He is currently assisting the build of another Europa XS and we believe that the wings are from an “accelerated” build kit, he was checking out the washout of both wings whilst he still hasn’t closed them out with the last bottom skin.
We are given to understand that on the accelerated kit the leading edge and upper surfaces are allowed to cure in a mould. ( we expect two moulds one for each wing)
On checking the underside of each of the wings we found that the washout on the Starboard wing is ½ degree under the requisite 2 ½ degrees. Compared to the Port wing being correct.
I suggested that prop wash may either compensate or indeed aggravate the difference but we didn’t have time to closely consider the matter.
Hearing about your “left” wing drop makes me wonder if our “wash out differing wings” may be a common issue on all accelerated wings?
Were you totally confident of identical wing washout on your bird? And was it “ACCELLERATED FACTORY BUILT WINGS.?
Regards
Bob Harrison G-PTAG Europa MK1.Kit 337.
Robt.C.Harrison
-----Original Message-----
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Sidsel & Svein Johnsen
Sent: 12 September 2006 17:32
To: Europa List; roger(at)europa-aircraft.com; John Wheeler
Subject: First flight LN-SKJ
All,
Late this morning I took my Europa XS trigear on its first flight from Kjeller airfield outside Oslo (ENKJ, known to some of the readers of this forum from visits with their Europas).
I followed the first flight program recommended in Europa Owner's Manual, but I must admit that I had a very strong urge to take it on a really long flight!
Although I have flown the Europa at a demo flight in Lakeland, I still find it an amazing aircraft to fly. So nimble yet so stable. I was checked out on the Diamond Katana a couple of weeks ago - not even close to Europa when it comes to "fun to fly".
Left wing is a bit heavy when letting go of the stick, and so am I but whether this is the reason will be checked out on subsequent flights with more equal loading. Clean stall at abt 51 kt, full flap stall at abt 42 kt (to be reconfirmed later in the test program). Left wing drop in both configurations but quite undramatic all told and very easy and quick to recover from the stall.
Duration 20 minutes in the air, absolutely uneventful except some shimmy of the nosewheel on touchdown. I have evidenty loosened the shimmy damper nut too much to get easy steering, so this will have to be tightened up a bit.
The engine sings like it enjoys what it is doing, and the temps etc. were all well within limits.
The only problem occured when opening the canopy afterwards for the photographer. I wanted a "cool" picture of myself, but that well-known Europa flier grin just sat there!
So the stats, Rowland:
- Europa XS trigear
- Kit no. A225
- Rotax 912ULS
- Airmaster A332 with Warp blades
- Build time 4 years 9 months - 3300 hrs of which 300 filling and sanding (should have filled less and sanded more, see next item!)
- Empty weight, with fairings and all the options plus some, steel nosewheel springs, heavy leather interior trim: 966 lbs
(the good thing, though, is that CG is right where it should be at 60.2 in and that the Norwegian CAA has approved 1450 lbs MTOW)
A profound "thank you" goes to all on this forum for help and support through the building period; to Andy (whose address I unfortunately do not have), Roger and John at Europa; to Neville (who is worth his weight in gold); and last but not least to my fellow builders here in Norway for invaluable contributions leading up to this most fantastic day!
Best regards,
Svein
LN-SKJ
[quote] - The Europa-List Email Forum - --> - NEW MATRONICS WEB FORUMS - --> - NEW MATRONICS LIST WIKI - --> - List Contribution Web Site - Thank you for your generous support! -Matt Dralle, List Admin. --> [b]
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grahamsingleton(at)btinte
Guest
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| Posted: Tue Sep 12, 2006 12:07 pm Post subject: First flight LN-SKJ |
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Svein
Congratulations, I envy you the opportunity to fly all over Scandinavia.
Say hello to Jos for me when you get to Ivalo 
A "gurney flap" is the easy way to correct a heavy wing. That is around
150mm of P section draft excluder stuck under the trailing edge of the
right aileron (for a left wing heavy) Adjust the the length of strip to
trim level in the cruise. It has the advantage that no one will notice
it except you.
Graham
Sidsel & Svein Johnsen wrote:
| Quote: | All,
Late this morning I took my Europa XS trigear on its first flight from
Kjeller airfield outside Oslo (ENKJ, known to some of the readers of
this forum from visits with their Europas).
I followed the first flight program recommended in Europa Owner's
Manual, but I must admit that I had a very strong urge to take it on a
really long flight!
Although I have flown the Europa at a demo flight in Lakeland, I still
find it an amazing aircraft to fly. So nimble yet so stable. I was
checked out on the Diamond Katana a couple of weeks ago - not even
close to Europa when it comes to "fun to fly".
Left wing is a bit heavy when letting go of the stick, and so am I but
whether this is the reason will be checked out on subsequent flights
with more equal loading. Clean stall at abt 51 kt, full flap stall at
abt 42 kt (to be reconfirmed later in the test program). Left wing
drop in both configurations but quite undramatic all told and very
easy and quick to recover from the stall.
Duration 20 minutes in the air, absolutely uneventful except some
shimmy of the nosewheel on touchdown. I have evidenty loosened the
shimmy damper nut too much to get easy steering, so this will have to
be tightened up a bit.
The engine sings like it enjoys what it is doing, and the temps etc.
were all well within limits.
The only problem occured when opening the canopy afterwards for the
photographer. I wanted a "cool" picture of myself, but that
well-known Europa flier grin just sat there!
So the stats, Rowland:
- Europa XS trigear
- Kit no. A225
- Rotax 912ULS
- Airmaster A332 with Warp blades
- Build time 4 years 9 months - 3300 hrs of which 300 filling and
sanding (should have filled less and sanded more, see next item!)
- Empty weight, with fairings and all the options plus some, steel
nosewheel springs, heavy leather interior trim: 966 lbs
(the good thing, though, is that CG is right where it should be at
60.2 in and that the Norwegian CAA has approved 1450 lbs MTOW)
A profound "thank you" goes to all on this forum for help and support
through the building period; to Andy (whose address I unfortunately do
not have), Roger and John at Europa; to Neville (who is worth his
weight in gold); and last but not least to my fellow builders here in
Norway for invaluable contributions leading up to this most fantastic day!
Best regards,
Svein
LN-SKJ
*
*
|
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steven.pitt2(at)ntlworld.
Guest
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| Posted: Tue Sep 12, 2006 1:14 pm Post subject: First flight LN-SKJ |
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Graham
Can you explain more about the 'gurney flap'. My Europa trigear has a heavy
stbd wing and I have (crudely) added an aileron trim to the stbd wing (bent
upwards). I have been meaning to look at the science of this situation - can
you point me in the appropriate direction.
Regards
Steve Pitt
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ward.t(at)xtra.co.nz
Guest
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| Posted: Tue Sep 12, 2006 1:16 pm Post subject: First flight LN-SKJ |
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Svein,
Congratulations, well done. It is truly a lovely aircraft to fly.
A number of Europe's here have the heavy left wing. Easily fixed with an aluminium tab fixed to the port aileron and bent upwards as much as is required. About 100mm x 40mm protruding.
Cheers,
Tim
Tim Ward
12 Waiwetu Street,
Fendalton,
Christchurch, 8052
New Zealand
Ph +64 3 3515166
Mobile 021 0640221
ward.t(at)xtra.co.nz (ward.t(at)xtra.co.nz)
[quote] ---
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grahamsingleton(at)btinte
Guest
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| Posted: Tue Sep 12, 2006 1:37 pm Post subject: First flight LN-SKJ |
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Steve
not much science really, the gurney flap deflects the airflow under the
aileron downwards slightly, which will of course push the aileron up.
Thus you should add the flap to the wing that is light to push it down a
bit.
It definitely works and is much more elegant than bits of aluminium
hanging out the back. Easier to adjust too, just add a bit more until
it's balanced.
Graham
Steven Pitt wrote:
| Quote: |
Graham
Can you explain more about the 'gurney flap'. My Europa trigear has a heavy
stbd wing and I have (crudely) added an aileron trim to the stbd wing (bent
upwards). I have been meaning to look at the science of this situation - can
you point me in the appropriate direction.
Regards
Steve Pitt
|
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raimo.toivio(at)rwm.fi
Guest
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| Posted: Tue Sep 12, 2006 1:49 pm Post subject: First flight LN-SKJ |
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Svein,
I am happy for you and wish you
plenty of safe, fast and pleasurerich
flights. At least one of them could
have a destination EFTP...welcome
to show your bird Kilo Juliet to us.
Regards, Raimo
=============
Raimo M W Toivio
OH-XRT Europa XS Mono #417, today the heatexchanger went under the silencer.
OH-CVK C172 Skyhawk
OH-BLL Beechcraft C45 w radial engines (grounded)
37500 Lempaala
Finland
tel + 358 3 3753 777
fax + 358 3 3753 100
gsm + 358 40 590 1450
raimo.toivio(at)rwm.fi (raimo.toivio(at)rwm.fi)
www.rwm.fi
[quote] ---
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topglock(at)cox.net
Guest
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| Posted: Tue Sep 12, 2006 6:42 pm Post subject: First flight LN-SKJ |
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Jeff, with 2.3 hours left to freedom, how do you sleep at night? 
Time for T Top, again...
Jeff
Baby Blue - 213 hours and flying every week...
do not archive
JEFF ROBERTS wrote:
| Quote: | Congratulations Svein!
You have just found out what this is all about. Quite possibly we all
have the nicest 2 seat plane on the planet. Others building will find
it out and thoses of us flying know it. Again congratulations you've
joined the ranks of the flying!
Best Regards
Jeff
N128LJ Gold Rush (at) 37.7 hours. Hold on Jeff I'm coming!
|
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topglock(at)cox.net
Guest
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| Posted: Tue Sep 12, 2006 6:42 pm Post subject: First flight LN-SKJ |
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Svein,
Congratulations on what is the finest hour of your journy. Enjoy!
Jeff
N55XS - Baby Blue
Sidsel & Svein Johnsen wrote:
[quote] All,
Late this morning I took my Europa XS trigear on its first flight from Kjeller airfield outside Oslo (ENKJ, known to some of the readers of this forum from visits with their Europas).
I followed the first flight program recommended in Europa Owner's Manual, but I must admit that I had a very strong urge to take it on a really long flight!
Although I have flown the Europa at a demo flight in Lakeland, I still find it an amazing aircraft to fly. So nimble yet so stable. I was checked out on the Diamond Katana a couple of weeks ago - not even close to Europa when it comes to "fun to fly".
Left wing is a bit heavy when letting go of the stick, and so am I but whether this is the reason will be checked out on subsequent flights with more equal loading. Clean stall at abt 51 kt, full flap stall at abt 42 kt (to be reconfirmed later in the test program). Left wing drop in both configurations but quite undramatic all told and very easy and quick to recover from the stall.
Duration 20 minutes in the air, absolutely uneventful except some shimmy of the nosewheel on touchdown. I have evidenty loosened the shimmy damper nut too much to get easy steering, so this will have to be tightened up a bit.
The engine sings like it enjoys what it is doing, and the temps etc. were all well within limits.
The only problem occured when opening the canopy afterwards for the photographer. I wanted a "cool" picture of myself, but that well-known Europa flier grin just sat there!
So the stats, Rowland:
- Europa XS trigear
- Kit no. A225
- Rotax 912ULS
- Airmaster A332 with Warp blades
- Build time 4 years 9 months - 3300 hrs of which 300 filling and sanding (should have filled less and sanded more, see next item!)
- Empty weight, with fairings and all the options plus some, steel nosewheel springs, heavy leather interior trim: 966 lbs
(the good thing, though, is that CG is right where it should be at 60.2 in and that the Norwegian CAA has approved 1450 lbs MTOW)
A profound "thank you" goes to all on this forum for help and support through the building period; to Andy (whose address I unfortunately do not have), Roger and John at Europa; to Neville (who is worth his weight in gold); and last but not least to my fellow builders here in Norway for invaluable contributions leading up to this most fantastic day!
<> </> Best regards,
Svein
LN-SKJ
[b]
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Justin(at)systemwise.co.u
Guest
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| Posted: Wed Sep 13, 2006 1:17 am Post subject: First flight LN-SKJ |
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Well done Svein. Nothing quite like that feeling?
I have been flying mine for a year and I still have the grin. It may need to be surgically removed.
On the subject of the “heavy” left wing.
My monowheel G-ZTED had a heavy right wing and I went through all the aileron trim device ideas.
Simon Smith was doing his test flying in his new Trigear at our airfield at Perth (Scotland not Australia) and he had the same.
He told me that he had just put a few mixing sticks behind the flap on the heavy side so that it did not retract the last wee bit and that solved it. He will no doubt fit a more permanent arrangement.
As a result of this Pearl of Wisdom (thanks Simon) I then spent an afternoon making my left wing flap retract forwards a further 3mm by taking off a few high spots on the top of the flap close out and sanding down the stops I had put in. I found the high spots by sliding old fashioned typists carbon paper behind the closed flap. I am told if the flaps are retracted slightly more than the design position you get more speed. Well, I don’t know about that but I have completely solved the heavy wing problem. No need for aileron trim and the associated weight/complication/mod permission that goes with it.
I am no expert but this did seem like a neat solution. I think I am right in saying that the build the accuracy of the closed flap is what determines the setting of the fully retracted position. The 3mm for and aft translates to slightly less than 2mm up and down at the trailing edge. This built in inaccuracy made for a heavy enough wing to spoil the fun. All better now.
I still can’t believe how much fun this aeroplane is to fly.
Justin Kennedy
G-ZTED Europa Classic Monowheel 912S Airmaster
Edinburgh
Scotland
[quote][b]
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jeff(at)rmmm.net
Guest
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| Posted: Wed Sep 13, 2006 7:14 am Post subject: First flight LN-SKJ |
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Hi Jeff,
Unfortunately, Ken hasn't done any fly-ins this year but he said
anytime I want to invite people to fly-in and camp they are very
welcome. Just let me know if you and Mary want to come up for a private
camp out and some cold ones.
As far as excitement for flying it's been a bit sidelined as we are
very close to completing our hanger / Apartment on the 10 acres I
showed you. Riding my bike around the block to fly out of T-Top is just
around the corner. By the time I drive to Smyrna airport and get around
their increasing security, take the 3 mile, 15 MPH road around the
airport through the National Guard area to my full hanger. Move my
buddies airplane I've used up 45 minutes to an hour. Soon I'll be able
to get to the cockpit in under 5 minutes. With my schedule it will make
a BIG difference in flying time. I will be installing the coolant
shutoff soon and be back in the air. Ah second thought after seeing the
forcast for the end of the week I think I'll wait and fly the last 2.3
hours off first. OK I guess I'm excited!
I'll let you know when the leash is off Gold Rush.
Regards,
Jeff
On Sep 12, 2006, at 9:40 PM, Rman wrote:
| Quote: |
Jeff, with 2.3 hours left to freedom, how do you sleep at night?
Time for T Top, again...
Jeff
Baby Blue - 213 hours and flying every week...
do not archive
JEFF ROBERTS wrote:
> Congratulations Svein!
> You have just found out what this is all about. Quite possibly we all
> have the nicest 2 seat plane on the planet. Others building will find
> it out and thoses of us flying know it. Again congratulations you've
> joined the ranks of the flying!
> Best Regards
> Jeff
> N128LJ Gold Rush (at) 37.7 hours. Hold on Jeff I'm coming!
|
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jeff(at)rmmm.net
Guest
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| Posted: Wed Sep 13, 2006 7:52 am Post subject: First flight LN-SKJ |
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Sorry guy's. I meant for the last message to Jeff R-MAN to go direct
but hit the wrong button.
Do Not Archive.
Jeff R.
On Sep 13, 2006, at 10:06 AM, JEFF ROBERTS wrote:
| Quote: |
Hi Jeff,
Unfortunately, Ken hasn't done any fly-ins this year but he said
anytime I want to invite people to fly-in and camp they are very
welcome. Just let me know if you and Mary want to come up for a
private camp out and some cold ones.
As far as excitement for flying it's been a bit sidelined as we are
very close to completing our hanger / Apartment on the 10 acres I
showed you. Riding my bike around the block to fly out of T-Top is
just around the corner. By the time I drive to Smyrna airport and get
around their increasing security, take the 3 mile, 15 MPH road around
the airport through the National Guard area to my full hanger. Move my
buddies airplane I've used up 45 minutes to an hour. Soon I'll be able
to get to the cockpit in under 5 minutes. With my schedule it will
make a BIG difference in flying time. I will be installing the coolant
shutoff soon and be back in the air. Ah second thought after seeing
the forcast for the end of the week I think I'll wait and fly the last
2.3 hours off first. OK I guess I'm excited!
I'll let you know when the leash is off Gold Rush.
Regards,
Jeff
On Sep 12, 2006, at 9:40 PM, Rman wrote:
>
>
> Jeff, with 2.3 hours left to freedom, how do you sleep at night?
> Time for T Top, again...
>
> Jeff
> Baby Blue - 213 hours and flying every week...
>
> do not archive
>
> JEFF ROBERTS wrote:
>
>> Congratulations Svein!
>> You have just found out what this is all about. Quite possibly we
>> all have the nicest 2 seat plane on the planet. Others building will
>> find it out and thoses of us flying know it. Again congratulations
>> you've joined the ranks of the flying!
>> Best Regards
>> Jeff
>> N128LJ Gold Rush (at) 37.7 hours. Hold on Jeff I'm coming!
>>
>>
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sidsel.svein(at)oslo.onli
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| Posted: Wed Sep 13, 2006 11:01 am Post subject: First flight LN-SKJ |
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Bob,
Interesting thought, but the wash-out is not the cause in my case.
I am not familiar with the term "accellerated factory built wings". The kit I bought from the factory 5 years ago came with the wing ribs in place (but not reinforced to the beam and bottom panel), bottom panel, leading edge and top panel (actually, the seam between bottom and top panel is at the l.e.). Apart from bid reinforcements, aileron weight boxes, meachanics, etc, the only major thing was to glue on the top panel. For this weights (sand bags) were used, and if one did not support the underside of the wing in the process, one could conceivably introduce a twist, i.e. change the washout.
On my wings I checked the washout and it was fine. I did not check it in absolute terms because I did not have a proper template for the tip section, but I checked that the tip on both wings had the same difference in angle between root and tip when placing the flap installation template on the two positions. Also, I checked the aileron and flap washout (factory built, termed "accellerated kit") and they had exactly the same and correct washout as per the manual. Finally, I rechecked the washout on my wings this afternoon, and even with a very accurate bubble level I could not see any difference.
So maybe the incidence angle of the whole left wing on my plane is the cause of this wing being "heavy" in my case? No, the left wing is actually a small fraction more up at the root than the right one (whether this is the cause of the left wing drop in stall I cannot say for sure, but theoretically it should stall just a little before the right one).
Best regards
Svein
LN-SKJ
[quote] ---
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terrys(at)cisco.com
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| Posted: Wed Sep 13, 2006 11:10 am Post subject: First flight LN-SKJ |
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Hi Svein,
I think it may be a little soon to say you actually have a 'heavy wing', since (as I understand it) you haven't flown with two people of equal weight. Even with two people of almost the same weight, our plane would bank in the direction of the person weighing just 10 pounds more than the other, right or left.
regards,
Terry Seaver
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Sidsel & Svein Johnsen
Sent: Wednesday, September 13, 2006 12:00 PM
To: europa-list(at)matronics.com
Subject: Re: Europa-List: First flight LN-SKJ
Bob,
Interesting thought, but the wash-out is not the cause in my case.
I am not familiar with the term "accellerated factory built wings". The kit I bought from the factory 5 years ago came with the wing ribs in place (but not reinforced to the beam and bottom panel), bottom panel, leading edge and top panel (actually, the seam between bottom and top panel is at the l.e.). Apart from bid reinforcements, aileron weight boxes, meachanics, etc, the only major thing was to glue on the top panel. For this weights (sand bags) were used, and if one did not support the underside of the wing in the process, one could conceivably introduce a twist, i.e. change the washout.
On my wings I checked the washout and it was fine. I did not check it in absolute terms because I did not have a proper template for the tip section, but I checked that the tip on both wings had the same difference in angle between root and tip when placing the flap installation template on the two positions. Also, I checked the aileron and flap washout (factory built, termed "accellerated kit") and they had exactly the same and correct washout as per the manual. Finally, I rechecked the washout on my wings this afternoon, and even with a very accurate bubble level I could not see any difference.
So maybe the incidence angle of the whole left wing on my plane is the cause of this wing being "heavy" in my case? No, the left wing is actually a small fraction more up at the root than the right one (whether this is the cause of the left wing drop in stall I cannot say for sure, but theoretically it should stall just a little before the right one).
Best regards
Svein
LN-SKJ
[quote] ... [b]
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sidsel.svein(at)oslo.onli
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| Posted: Wed Sep 13, 2006 11:14 am Post subject: First flight LN-SKJ |
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Graham,
Appreciate your suggestion re. wing drop cure (may ask you for some more
details if I go that route), but what about risk of introducing flutter in
the aileron??
I would like to make some kind of arrangement, and there are some
suggestions on this forum in addition to yours, but I also have the Navaid
wing leveller installed. Will try it next time, but I am anxious to find
out if the stick vibration I get on the ground is gone when there is some
load on the ailerons (I cannot understand why they have made with such a
small deadband on the servo feedback - they even write about it in the
manual - - - ).
Best regards,
Svein
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sidsel.svein(at)oslo.onli
Guest
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| Posted: Wed Sep 13, 2006 12:20 pm Post subject: First flight LN-SKJ |
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Hi Terry,
Interesting input, supporting my first thought expressed in my message yesterday. That is what David Bossomworth called the "cookie test" , I think it was, when he took me up as passenger: " Now I will let go of the stick, and the plane will tell who ate the most cookies" . Right wing drop!
Best regards,
Svein
LN-SKJ
---
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grahamsingleton(at)btinte
Guest
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| Posted: Wed Sep 13, 2006 2:17 pm Post subject: First flight LN-SKJ |
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Svein
In fact there will be less risk of flutter, or more correctly "short
period oscillation". The boundary layer at the trailing edge is thick,
maybe 20 or 30mm? (guess) Flutter is caused by resonance, the aileron
bouncing against the stable part of the airflow. The gurney flap, maybe
it should be called a single side Flettner Strip, bites into the
streamlined airflow sooner than the plain trailing edge.
This was exactly why the full flettner strip on the elevator trim tab
cured the short period oscillation of the elevator. Ivan and I found it
on an early flight in G-YURO, I let go the stick a fraction of a second
before Ivan took hold, with a little bit of stick force. Very odd feeling!
I know what you mean about Navaids rattling on the ground. Never did
understand it though,
Sidsel & Svein Johnsen wrote:
| Quote: |
<sidsel.svein(at)oslo.online.no>
Graham,
Appreciate your suggestion re. wing drop cure (may ask you for some
more details if I go that route), but what about risk of introducing
flutter in the aileron??
I would like to make some kind of arrangement, and there are some
suggestions on this forum in addition to yours, but I also have the
Navaid wing leveller installed. Will try it next time, but I am
anxious to find out if the stick vibration I get on the ground is gone
when there is some load on the ailerons (I cannot understand why they
have made with such a small deadband on the servo feedback - they even
write about it in the manual - - - ).
Best regards,
Svein
|
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NevEyre(at)aol.com
Guest
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| Posted: Thu Sep 14, 2006 2:22 pm Post subject: First flight LN-SKJ |
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Hi Svein,
Congratulations on getting your Europa up, now perhaps you can motivate Helge and Hans Jorgen to get on with theirs ?
Thanks for your kind comment '' worth my weight in Gold '' , how much is an ounce worth ?.......... I weigh 3440 ounces !
Cheers,
Nev.
[quote][b]
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