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Gerd`s new Lightning

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NowackLinden(at)gmx.de
Guest

Posted: Wed Jul 31, 2013 2:38 am Post subject: Gerd`s new Lightning

As you might have read in the latest Newsletter I have started to build 

my second Lightning, kit no.162

The crate with all the parts - well, almost all the parts - arrived last 

week in Frankfurt Rhein Main Airport and I trailered it home. Since then 

I I have unwrapped my shiny new toy and started to work.

The first major thing I did was the stick / control mixer / front spar 

box asssembly. You could read in the Newsletter about my plan to have a 

single stick, and maybe you wondered why? Well , I guess it is the habit 

that was formed by many years of flying with Sidesticks in the Airbusses 

I used to fly. I just feel better and more comfortable. And it leaves 

more space for my ( and Uli`s) legs.

If you are curious how it looks, see the pic.

You can see that the Control Mixer is bolted on at the usual points and 

carries only one bolt for the center stick.You Â´ll notice the two 

aluminum angIes bolted to two steel plates that are welded to the spar 

box front. These carry Nylon bushings supplied by A/C Spruce which are 

supposed to take up the bending forces that might result from high 

control input forces. You might say that the control forces of the 

Lighting`s elevator are way too light for any mixer tube to bend, which 

is true. But I will have to perform control load tests later for the 

famous German Second Evaluation, and the forces called for then are 

beyond everything you would normally apply to your Lightning stick.

Nick mentioned the "Walking Bar" that divides the Aileron push pull 

tubes. Same reason here . My examiner found the aileron controls of my 

late D-ELIY on the "elastic" side, and Nick also voiced the concern that 

a single tube from the center stick to the aileron bellcrank would be 

too long. You will get the chance to see pics of said walking bar in the 

next Newsletter.



By the way, I did not do the Build Assist in SYI, as the Newsletter 

stated. I have to do the 51% here in Germany (yes, same Rule in G.). I 

would have liked to save some time to get my new Lightning out faster, 

but its just not possible. I spent a few days in Shelbyville to clear 

some design specifics with Nick and Mark and, most of all , to build a 

nice, sturdy crate with Ronnie.

I had planned to take the Crate along to Atlanta Airport in a Uhaul 

truck but, since some parts were on backorder, I couldn`t.

Of course I used the time in SYI to learn a few new tricks, and I 

drilled a few holes with their drill jigs. They really have drill jigs 

for everything!



Thats it for now.

I plan to do another write up for Buz, who seems to be stuck with the 

noble task of News Letter editing.

Then I can show some more pics and tell more funny stories about 

Experimental Aircraft building in Germany.

In case you`re interested.



Gerd

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n45bm(at)yahoo.com
Guest

Posted: Wed Jul 31, 2013 5:21 am Post subject: Gerd`s new Lightning

Good to hear you're getting back in the saddle, Gerd. We wish you swift progress on your new steed. Keep us abreast of your progress. All the best.

Bernardo Melendez

        From: Gerd + Uli Nowack <NowackLinden(at)gmx.de>

 To: lightning-list(at)matronics.com 

 Sent: Wednesday, July 31, 2013 5:38 AM

 Subject: Gerd`s new Lightning

As you might have read in the latest Newsletter I have started to build my second Lightning, kit no.162

The crate with all the parts - well, almost all the parts - arrived last week in Frankfurt Rhein Main Airport and I trailered it home. Since then I I have unwrapped my shiny new toy and started to work.

The first major thing I did was the stick / control mixer / front spar box asssembly. You could read in the Newsletter about my plan to have a single stick, and maybe you wondered why? Well , I guess it is the habit that was formed by many years of flying with Sidesticks in the Airbusses I used to fly. I just feel better and more comfortable. And it leaves more space for my ( and Uli`s) legs.

If you are curious how it looks, see the pic.

You can see that the Control Mixer is bolted on at the usual points and carries only one bolt for the center stick.You ´ll notice the two aluminum angIes bolted to two steel plates that are welded to  the spar box front. These carry Nylon bushings supplied by A/C Spruce which are supposed to take up the bending forces that might result from high control input forces. You might say that the control forces of the Lighting`s elevator are way too light for any mixer tube to bend, which is true. But I will have to perform control load tests later for the famous German Second Evaluation, and the forces called for then are beyond everything you would normally apply to your Lightning stick.

Nick mentioned the "Walking Bar" that divides the Aileron push pull tubes. Same reason here . My examiner found the aileron controls of my late D-ELIY on the "elastic" side, and Nick also voiced the concern that a single tube from the center stick to the aileron bellcrank would be too long. You will get the chance to see pics of said walking bar in the next Newsletter.

By the way, I did not do the Build Assist in SYI, as the Newsletter stated. I have to do the  51% here in Germany (yes, same Rule in G.). I would have liked to save some time to get my new Lightning out faster, but its just not possible. I spent a few days in Shelbyville to clear some design specifics with Nick and Mark and, most of all , to build a nice, sturdy crate with Ronnie.

I had planned to take the Crate along to Atlanta Airport in a Uhaul truck but, since some parts were on backorder, I couldn`t.

Of course I used the time in SYI to learn a few new tricks, and I drilled a few holes with their drill jigs. They really have drill jigs for everything!

Thats it for now.

I plan to do another write up for Buz, who seems to be stuck with the noble task of News Letter editing.

Then I can show some more pics and tell more funny stories about Experimental Aircraft building in Germany.

In case you`re interested.

Gerd

 [quote][b]

- The Matronics Lightning-List Email Forum -

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richardcoo

Joined: 24 Mar 2012
Posts: 10
Location: Wellington, New Zealand

Posted: Wed Jul 31, 2013 7:00 pm Post subject: Re: Gerd`s new Lightning

Hi Gerd. So glad to hear that you're underway on the build of your new machine. I know it's very early in the build, but I was wondering if you've had any thoughts about which prop' you might end up choosing for your UL engine? Woodcomp again?

- The Matronics Lightning-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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NowackLinden(at)gmx.de
Guest

Posted: Wed Jul 31, 2013 10:31 pm Post subject: Gerd`s new Lightning

As you might have read in the latest Newsletter I have started to build

my second Lightning, kit no.162

The crate with all the parts - well, almost all the parts - arrived last

week in Frankfurt Rhein Main Airport and I trailered it home. Since then

I I have unwrapped my shiny new toy and started to work.

The first major thing I did was the stick / control mixer / front spar

box asssembly. You could read in the Newsletter about my plan to have a

single stick, and maybe you wondered why? Well , I guess it is the habit

that was formed by many years of flying with Sidesticks in the Airbusses

I used to fly. I just feel better and more comfortable. And it leaves

more space for my ( and Uli`s) legs.

If you are curious how it looks, see the pic.

You can see that the Control Mixer is bolted on at the usual points and

carries only one bolt for the center stick.You Â´ll notice the two

aluminum angIes bolted to two steel plates that are welded to the spar

box front. These carry Nylon bushings supplied by A/C Spruce which are

supposed to take up the bending forces that might result from high

control input forces. You might say that the control forces of the

Lighting`s elevator are way too light for any mixer tube to bend, which

is true. But I will have to perform control load tests later for the

famous German Second Evaluation, and the forces called for then are

beyond everything you would normally apply to your Lightning stick.

Nick mentioned the "Walking Bar" that divides the Aileron push pull

tubes. Same reason here . My examiner found the aileron controls of my

late D-ELIY on the "elastic" side, and Nick also voiced the concern that

a single tube from the center stick to the aileron bellcrank would be

too long. You will get the chance to see pics of said walking bar in the

next Newsletter.



By the way, I did not do the Build Assist in SYI, as the Newsletter

stated. I have to do the 51% here in Germany (yes, same Rule in G.). I

would have liked to save some time to get my new Lightning out faster,

but its just not possible. I spent a few days in Shelbyville to clear

some design specifics with Nick and Mark and, most of all , to build a

nice, sturdy crate with Ronnie.

I had planned to take the Crate along to Atlanta Airport in a Uhaul

truck but, since some parts were on backorder, I couldn`t.

Of course I used the time in SYI to learn a few new tricks, and I

drilled a few holes with their drill jigs. They really have drill jigs

for everything!



Thats it for now.

I plan to do another write up for Buz, who seems to be stuck with the

noble task of News Letter editing.

Then I can show some more pics and tell more funny stories about

Experimental Aircraft building in Germany.

In case you`re interested.



Gerd

- The Matronics Lightning-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Lightning-List

NowackLinden(at)gmx.de
Guest

Posted: Thu Aug 01, 2013 1:45 am Post subject: Gerd`s new Lightning

Hi Richard,



Thank you for your frinedly words!

Concerning the propeller: You propably know that i plan to use a 

ULPower390iS engine, again derated to 2800rpm for noise reasons and to 

make prop selection easier.

I think (like Nick does) that an adjustable propeller is a must, since 

we all donÂ´t know the optimum prop pitch for the speeds we expect.

The new Sensenich that will drive the Lightning Strike would certainly 

also be an option for the ULPower 390. And I found out that Airmaster 

can supply a variety of prop blades with their ground adjustable hub. 

Also an option.

But since I am a fan of flight adjustable props I looked around further 

and found something very interesting in Italy: GT Propeller. They make 

2blade CS hubs and have a new scimitar shaped blade that is made for 

160hp engines and fast planes like the F.8L Falco, so that one is my 

favorite. GT have a hub extension that also carries the slip rings for 

the electric blade drive, which length can be determined by the 

customer. Nick told me that the normal cowling fits without 

modification, when their ULPower 390 gets a 4inch prop extension. Since 

they use a 7" mount and my mount has 10", even a rather short hub 

extension of 2 or 3 " should be enough in my case. So apparently I won`t 

have to make drop shaped cheeks!



Finally: I wouldn`t advise to use a Woodcomp or any other Rotax prop on 

a ULPower engine. The torque pulses with only two peaks per round are 

much higher than with the geared Rotax, those props are designed for a 

much smoother torque curve



Gerd

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