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Rotax 912 80HP Idle RPM
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wingnut

Joined: 11 Jan 2006
Posts: 356

Posted: Tue Mar 18, 2008 5:26 pm Post subject: Re: Rotax 912 80HP Idle RPM

 	  Quote: 	
		   In any case the conclusion seems to be that the only way to achieve low approach speeds with a Rotax 912 is to slip hard or accept gearbox chatter at low idle settings during the approach. 	




I do think that you're getting worked up over nothing. I can slow my 912UL powered Model IV down just fine with zero gearbox chatter. In fact, if I setup my approach the way I like it, I leave in a touch of power all the way to short final. I wait till I'm over the fence before I bring power all the way out and then I have to let the nose drop quite a bit to keep the airspeed up or I'll drop like a rock.

_________________
Luis Rodriguez
Model IV 1200
Rotax 912UL
Flying Weekly
Laurens, SC (34A)

michaelgibbs(at)cox.net
Guest

Posted: Tue Mar 18, 2008 5:41 pm Post subject: Rotax 912 80HP Idle RPM

Ken sez:



 	  Quote: 	
		   The conclusion I've reached, as Dick Maddux said, the 912

 is a weird engine.


	


There's nothing weird about it, Ken.  On my Model IV-1200 I used a 912S with Ivo medium prop with in-flight adjustable hub.  Mine would idle beautifully at 1400 RPM and I had no problem with float.



 	  Quote: 	
		   If I remember right all the Lycomings I used to fly would idle

 so slow the props would actually create a little drag.


	


Mine would do that with no trouble.  I would flatten the blades out to high-RPM, pull the throttle to idle, and I could literally feel the deceleration.  It was like putting the brakes on.



 	  Quote: 	
		   I'm really annoyed with myself that I didn't think to

 research this subject more before I made the engine

 purchase decision.


	


In my opinion you've purchased the best engine available in its class.  I'll be putting another one on my new Series 6 when the time comes.



 	  Quote: 	
		   ...the conclusion seems to be that the only way to achieve

 low approach speeds with a Rotax 912 is to slip hard or

 accept gearbox chatter at low idle settings during the approach.


	


That was not my experience at all.  Although I had my ground idle set at 1400, on short final with the throttle closed it would run a bit higher, but the ability to flatten out the prop allowed me to control the thrust precisely.



Mike G.

N728KF

Phoenix, AZ

Don G

Joined: 10 Jan 2006
Posts: 156
Location: Central Illinois

Posted: Tue Mar 18, 2008 6:40 pm Post subject: Re: Rotax 912 80HP Idle RPM

Ken....I absolutely love this engine...If the FAA would allow it...I would put one on the front of My Luscombe and ditch the Continental in a heart beat.

 I got my first rating in the 70's and have time behind alot of recips from 4's and 6's , radials to v-12's and despite it nuances, the 912 is in my opinion the best engine for its class I have ever operated...takes throttle like motorcycle, runs the smoothest of anything this side of a turbine, and burns so little fuel. I kinda miss the brakeing effect of a "regular engine when you pull the throttle back...but I wouldn't trade it because of all the other great features.



And I have only about 80 hours behind it...probably made up my mind in the first 10

_________________
Don G.
Central Illinois
Kitfox IV Speedster
Luscombe 8A
RV9A

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Wed Mar 19, 2008 4:51 am Post subject: Rotax 912 80HP Idle RPM

I'm keeping my big mouth shut on this whole idle rpm-short landing- 

rattling dogclutch-whatever  discussion, because I don't want a bunch  

of other fliers to enjoy the benefits of flying behind an engine that  

doesn't have these problems...others maybe, but that's another  

story. : )



Lynn Matteson

Grass Lake, Michigan

Kitfox IV Speedster  w/Jabiru 2200

flying w/480+ hrs

do not archive

On Mar 18, 2008, at 10:40 PM, Don G wrote:



 	  Quote: 	
		   



 Ken....I absolutely love this engine...If the FAA would allow  

 it...I would put one on the front of My Luscombe and ditch the  

 Continental in a heart beat.

  I got my first rating in the 70's and have time behind alot of  

 recips from 4's and 6's , radials to v-12's and despite it nuances,  

 the 912 is in my opinion the best engine for its class I have ever  

 operated...takes throttle like motorcycle, runs the smoothest of  

 anything this side of a turbine, and burns so little fuel. I kinda  

 miss the brakeing effect of a "regular engine when you pull the  

 throttle back...but I wouldn't trade it because of all the other  

 great features.



 And I have only about 80 hours behind it...probably made up my mind  

 in the first 10



 --------

 Don G.

 Central Illinois

 Kitfox IV Speedster

 Luscombe 8A



 http://www.geocities.com/dagger369th/my_firefly.htm





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=170826#170826

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Don G

Joined: 10 Jan 2006
Posts: 156
Location: Central Illinois

Posted: Wed Mar 19, 2008 6:25 am Post subject: Re: Rotax 912 80HP Idle RPM

Lynn, and all the gang..



I must readily admit I have never had the privilege to operate a machine with a Jabiru. I surely hope to some day, as it is undoubtedly the prettiest piece of machine work I have seen to date as a production item.

 And the words that You spoke Lynn, that there is " another story"  are words well chosen. 

Someday, Lord willing, I hope to experience this engine, with its fine reputation, beautiful machine work, and elegant simplicity. I may then change my opinion. For opinions are only the product of our experiences.

At current price levels..one thing I am fairly sure of, I will never be able to build a craft and install a 912 on it.  For Part of the "other story" is the way Rotax has raised their priced to exorbitant levels in the last few years. Completely unreasonable I think. As I work for an Engine company that produces most of our Engines outside the United States, AND we have not had to raise prices for 4 or 5 years, I consider their behavior nothing less than extortion. They are subject to the same rescource/supply conditions we are for production.



I will also say this..the first company to hit the market with a regular production of a fully fadec controlled 100hp class aircraft engine of a current design, with computer controlled fuel mapping and ingition, will take the lead very quickly. It also looks to me like the next logical evolution Jab would be to add these simple and economical features. That Engine is just perfect for it. ANd A KitFox airframe the perfect mount.

_________________
Don G.
Central Illinois
Kitfox IV Speedster
Luscombe 8A
RV9A

Catz631(at)aol.com
Guest

Posted: Wed Mar 19, 2008 7:05 am Post subject: Rotax 912 80HP Idle RPM

Don G  it sounds like your background in aviation is similar to mine. I also have a bunch of round engine  and high performance jet time. No matter which airplane you fly though, they are all different and you learn from each. Case in point is the Rotax 912 on the nose of the Kitfox. I am learning it's differences from a standard aircraft engine. I think it is more akin to a modern motorcycle engine. Now don't get me wrong, I am learning to like this engine but it is weird in comparison to Lyc or Cont or just about any other aircraft engine. I went to Lockwood's school so I could work on it and I now feel comfortable with it.

   Mike G is having great success with his Kitfox slowing on final approach, I suspect, because he has a controllable pitch prop. I don't have that luxury and because I want to stay in the LSA catagory,I can't have. But, I have reduced the idle down to a level where it runs on final and I can slow the aircraft. It is much better now.

   I don't have an elevator trim  on my aircraft so I have to hold quite a bit of back pressure to hold a slower airspeed, monitor and adjust the engine rpm so it doesn't quit and of course land the airplane. It's just some additional items I didn't have to do in my Luscombe,Pacer,Monocoupe,Waco,Pitts,KR2,Taylor Monoplane,Cessna 120,Starduster Two,Skybolt,etc (I have had a few airplanes) but no big deal.

   I will soon be getting a trim system so that will help my flying experience (as they say) Maybe I will be able to use the flaps more (or at all without being"Popeye")   I love my Kitfox ! It is great getting back to basic flying, hopping off the ground in a few feet, looking at all the neat stuff on the ground, no passengers, cool airports to land on, no flight attendents,sipping fuel, listening to smooth jazz at your hanger while working on your Kitfox,only having to fly when the weather is good, no flight attendents,drinking beer when you are done flying and doing more hanger flying.(wish Florida had mountains though. It pretty well sucks here in the summer!  I miss Colorado)

   To finish off my big dissertation want to thank you guys for all of your input on this aircraft. I would have never found out about Kreem coming loose in the tanks (I now have a borescope and monitor it),solutions for fuel spilling out carb intakes, and a host of other things. I have owned my Kitfox 4 for only 5 months  and have flown it for 20 hours. I have a lot to learn!

  

                                                      Dick Maddux

                                                      Fox4-1200

                                                      Rotax912UL

                                                      Pensacola,Fl  



Create a Home Theater Like the Pros. Watch the video on AOL Home.

  [quote][b]

Catz631(at)aol.com
Guest

Posted: Wed Mar 19, 2008 7:33 am Post subject: Rotax 912 80HP Idle RPM

Don G ,you had mentioned that there needs to be a 100 hp engine,air cooled with Fadec. Well there is ! I saw it at the Sebring LSA expo. It looks like a Jabaru (but isn't),has 100 hp and Fadec and is made in Belgium. I talked to the guy about it a little and it is new and is in a few homebuilts in the US. It is a terrific looking engine and would be well suited to our aircraft. I have a brochure somewhere and I will try to find out the name if you are interested. I no doubt would probably use it if I was building and my Kitfox did not already have the Rotax 912

  

                                                 Dick Maddux

                                                 Fox 4-1200

                                                 Pensacola,Fl



Create a Home Theater Like the Pros. Watch the video on AOL Home.

  [quote][b]

thesupe(at)hotmail.com
Guest

Posted: Wed Mar 19, 2008 7:50 am Post subject: Rotax 912 80HP Idle RPM

Sounds like the UL260i   Jim Chuk  Avids Mn

  	  Quote: 	
		    From: Catz631(at)aol.com

Date: Wed, 19 Mar 2008 11:30:14 -0400

Subject: Re: Rotax 912 80HP Idle RPM

To: kitfox-list(at)matronics.com

  Don G ,you had mentioned that there needs to be a 100 hp engine,air cooled with Fadec. Well there is ! I saw it at the Sebring LSA expo. It looks like a Jabaru (but isn't),has 100 hp and Fadec and is made in Belgium. I talked to the guy about it a little and it is new and is in a few homebuilts in the US. It is a terrific looking engine and would be well suited to our aircraft. I have a brochure somewhere and I will try to find out the name if you are interested. I no doubt would probably use it if I was building and my Kitfox did not already have the Rotax 912

                                                 Dick Maddux

                                                 Fox 4-1200

                                                 Pensacola,Fl

   Create a Home Theater Like the Pros. Watch the video on AOL Home.

 	  Quote: 	

arget=_blank>http://www.matronics.com/Navigator?Kitfox-List

p://forums.matronics.com

blank>http://www.matronics.com/contribution

Connect and share in new ways with Windows Live. Get it now!  [quote][b]

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Wed Mar 19, 2008 8:04 am Post subject: Rotax 912 80HP Idle RPM

Hey Don-

How "central" are you in Central Illinios? (answer directly if you  

prefer) With all the fly-ins that Fly-ins.com  is promoting around  

Illinois, I'll be going to some of them, and maybe we could hook up  

there. I'd like to get to meet you, Pat Reilly, Nick Scholtes,  

and....I'm blanking out here....others from around this  

area....Cushing Field comes to mind.



I've mentioned here some of the Jabiru issues I've had before, and I  

think the factory has either done something about it, (not  

necessarily due to my input, by any means) or I've educated myself in  

the problem area. I think all engines have a learning curve, and  

maybe their owners do as well, I know that I do.

One of the issues that I've had to deal with is the ignition area of  

the Jabiru, and I'm currently looking into a different source in that  

department.



Like you, Don, I think the Jab is so pretty, I'd like to run around  

with the "hood" off, like the aviation equivalent of a '32 roadster,  

sans bonnet. : )



Lynn Matteson

Grass Lake, Michigan

Kitfox IV Speedster  w/Jabiru 2200

flying w/480+ hrs

On Mar 19, 2008, at 10:25 AM, Don G wrote:



 	  Quote: 	
		   



 Lynn, and all the gang..



 I must readily admit I have never had the privilege to operate a  

 machine with a Jabiru. I surely hope to some day, as it is  

 undoubtedly the prettiest piece of machine work I have seen to date  

 as a production item.

  And the words that You spoke Lynn, that there is " another story"   

 are words well chosen.

 Someday, Lord willing, I hope to experience this engine, with its  

 fine reputation, beautiful machine work, and elegant simplicity. I  

 may then change my opinion. For opinions are only the product of  

 our experiences.

 At current price levels..one thing I am fairly sure of, I will  

 never be able to build a craft and install a 912 on it.  For Part  

 of the "other story" is the way Rotax has raised their priced to  

 exorbitant levels in the last few years. Completely unreasonable I  

 think. As I work for an Engine company that produces most of our  

 Engines outside the United States, AND we have not had to raise  

 prices for 4 or 5 years, I consider their behavior nothing less  

 than extortion. They are subject to the same rescource/supply  

 conditions we are for production.



 I will also say this..the first company to hit the market with a  

 regular production of a fully fadec controlled 100hp class aircraft  

 engine of a current design, with computer controlled fuel mapping  

 and ingition, will take the lead very quickly. It also looks to me  

 like the next logical evolution Jab would be to add these simple  

 and economical features. That Engine is just perfect for it. ANd A  

 KitFox airframe the perfect mount.



 --------

 Don G.

 Central Illinois

 Kitfox IV Speedster

 Luscombe 8A

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Wed Mar 19, 2008 8:44 am Post subject: Rotax 912 80HP Idle RPM

I'm blanking out here..what's Fadec stand for?  Fuel and ? engine  

control? Something else?

Lynn Matteson

Grass Lake, Michigan

Kitfox IV Speedster  w/Jabiru 2200

flying w/480+ hrs

do not archive

On Mar 19, 2008, at 11:30 AM, Catz631(at)aol.com wrote:



 	  Quote: 	
		   Don G ,you had mentioned that there needs to be a 100 hp engine,air  

 cooled with Fadec. Well there is ! I saw it at the Sebring LSA  

 expo. It looks like a Jabaru (but isn't),has 100 hp and Fadec and  

 is made in Belgium. I talked to the guy about it a little and it is  

 new and is in a few homebuilts in the US. It is a terrific looking  

 engine and would be well suited to our aircraft. I have a brochure  

 somewhere and I will try to find out the name if you are  

 interested. I no doubt would probably use it if I was building and  

 my Kitfox did not already have the Rotax 912



                                                 Dick Maddux

                                                 Fox 4-1200

                                                 Pensacola,Fl



 Create a Home Theater Like the Pros. Watch the video on AOL Home.

 www.matronics.com/Navigator?Kitfox-List _- 

 www.matronics.com/contribution _- 

 ============================================================

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Wed Mar 19, 2008 8:52 am Post subject: Rotax 912 80HP Idle RPM

Yes, and they are muti-bucks, aren't they? I think if we wait long  

enough, the ideal engine will come along, but in the meantime there's  

fuel to burn and planes to fly, so we've got to make a decision as to  

which one of the "almost there" engines to choose from.



Lynn

do not archive



On Mar 19, 2008, at 11:47 AM, Jim_and_Lucy Chuk wrote:



 	  Quote: 	
		   Sounds like the UL260i   Jim Chuk  Avids Mn



 From: Catz631(at)aol.com

 Date: Wed, 19 Mar 2008 11:30:14 -0400

 Subject: Re: Rotax 912 80HP Idle RPM

 To: kitfox-list(at)matronics.com



 Don G ,you had mentioned that there needs to be a 100 hp engine,air  

 cooled with Fadec. Well there is ! I saw it at the Sebring LSA  

 expo. It looks like a Jabaru (but isn't),has 100 hp and Fadec and  

 is made in Belgium. I talked to the guy about it a little and it is  

 new and is in a few homebuilts in the US. It is a terrific looking  

 engine and would be well suited to our aircraft. I have a brochure  

 somewhere and I will try to find out the name if you are  

 interested. I no doubt would probably use it if I was building and  

 my Kitfox did not already have the Rotax 912



                                                 Dick Maddux

                                                 Fox 4-1200

                                                 Pensacola,Fl



 Create a Home Theater Like the Pros. Watch the video on AOL Home.

 arget=_blank>http://www.matronics.com/Navigator?Kitfox-Listp:// 

 forums.matronics.comblank>http://www.matronics.com/contribution

 Connect and share in new ways with Windows Live. Get it now!_- 

 ============================================================ _- 

 http://www.matronics.com/Navigator?Kitfox-List_- 

 ============================================================ _- 

 forums.matronics.com_- 

 ============================================================ _- 

 contribution_- 

 ============================================================

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

l.morris(at)tx.rr.com
Guest

Posted: Wed Mar 19, 2008 10:24 am Post subject: Rotax 912 80HP Idle RPM

Lynn, Full Authority Digital Engine Control (FADEC). ulpower.com has info on that engine.   Leon Morris/Classic 4/60%/ Flower Mound,TX 

---- Lynn Matteson <lynnmatt(at)jps.net> wrote: 

 	  Quote: 	
		   

 

 I'm blanking out here..what's Fadec stand for?  Fuel and ? engine  

 control? Something else?

 

 

 Lynn Matteson

 Grass Lake, Michigan

 Kitfox IV Speedster  w/Jabiru 2200

 flying w/480+ hrs

 do not archive

 

 

 On Mar 19, 2008, at 11:30 AM, Catz631(at)aol.com wrote:

 

 > Don G ,you had mentioned that there needs to be a 100 hp engine,air  

 > cooled with Fadec. Well there is ! I saw it at the Sebring LSA  

 > expo. It looks like a Jabaru (but isn't),has 100 hp and Fadec and  

 > is made in Belgium. I talked to the guy about it a little and it is  

 > new and is in a few homebuilts in the US. It is a terrific looking  

 > engine and would be well suited to our aircraft. I have a brochure  

 > somewhere and I will try to find out the name if you are  

 > interested. I no doubt would probably use it if I was building and  

 > my Kitfox did not already have the Rotax 912

 >

 >                                                 Dick Maddux

 >                                                 Fox 4-1200

 >                                                 Pensacola,Fl

 >

 >

 >

 > Create a Home Theater Like the Pros. Watch the video on AOL Home.

 > www.matronics.com/Navigator?Kitfox-List _- 

 > www.matronics.com/contribution _- 

 > ============================================================

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Wed Mar 19, 2008 11:36 am Post subject: Rotax 912 80HP Idle RPM

Thanks, Leon.

Lynn

On Mar 19, 2008, at 2:19 PM, <l.morris(at)tx.rr.com> wrote:



 	  Quote: 	
		   



    Lynn, Full Authority Digital Engine Control (FADEC). ulpower.com  

 has info on that engine.   Leon Morris/Classic 4/60%/ Flower Mound,TX

 ---- Lynn Matteson <lynnmatt(at)jps.net> wrote:

> 

>

> I'm blanking out here..what's Fadec stand for?  Fuel and ? engine

> control? Something else?

> Lynn Matteson

> Grass Lake, Michigan

> Kitfox IV Speedster  w/Jabiru 2200

> flying w/480+ hrs

> do not archive

> On Mar 19, 2008, at 11:30 AM, Catz631(at)aol.com wrote:

>

>> Don G ,you had mentioned that there needs to be a 100 hp engine,air

>> cooled with Fadec. Well there is ! I saw it at the Sebring LSA

>> expo. It looks like a Jabaru (but isn't),has 100 hp and Fadec and

>> is made in Belgium. I talked to the guy about it a little and it is

>> new and is in a few homebuilts in the US. It is a terrific looking

>> engine and would be well suited to our aircraft. I have a brochure

>> somewhere and I will try to find out the name if you are

>> interested. I no doubt would probably use it if I was building and

>> my Kitfox did not already have the Rotax 912

>>

>>                                                 Dick Maddux

>>                                                 Fox 4-1200

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Wed Mar 19, 2008 12:02 pm Post subject: Rotax 912 80HP Idle RPM

The way I land my fox was the way I was shown how to do it last year by a bush flier with more experiences thanTetley has tea bags.    

   

I fly my short final at 50-55 ( the best angle of glide) to about ten feet off the water then as I flare ( a very light flare) the air speed starts dropping and the plane touches down just before the wing stalls...  No buffeting and until the touchdown a go around is an easy affair.  I make no bones about the fact I’m a fair weather flyer and when the WX isn’t co-operating I do something else.  Never the less it all comes down to timing the flare and not trying to flare too much.  Landings are much shorter than anything a PA 18 can do.  The real trick as everyone knows is Pr------ ( fill in the blanks)!  

   

I hate hanging on the prop close to the ground..  one burp from the engine and ...   well I don’t even want to think about that.  Most ponds are surrounded by big rocks, and trees and other essentially immobile objects  not a good place to have to get your nose down in a hurry...  Better to set up a proper circuit first and fly the plane until it’s off the step.  

   

On wheels.... What wheels???  

Do not archive today.  

   

[img]cid:image001.jpg(at)01C889E6.B0640F10[/img]  

   

Noel Loveys  

Campbellton, NL, Canada  

CDN AME intern, PP-Rec  

C-FINB, Kitfox III-A  

582 B box, Ivo IFA, Aerocet 1100 floats  

[url=noelloveys(at)yahoo.ca]noelloveys(at)yahoo.ca[/url]  

   

   

   

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Description:

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8609 Time(s)

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Don G

Joined: 10 Jan 2006
Posts: 156
Location: Central Illinois

Posted: Wed Mar 19, 2008 1:17 pm Post subject: Re: Rotax 912 80HP Idle RPM

Lynn,

I am based at Shelby County airport. (2HO)..have a hangar there and if you get down this way in bad weather...any Kitfox can spend the night inside my spot...I can Push the Luscombe outside...it can take it!

Only 100LL  there but I will cart anyone to the BP station  to get a couple cans of autogas.

The airport is just west of Lake Shelbyville, a large lake...probably 30 miles long north/south. I live on the east side.

We have 6500 feet of just resurfaced asphalt- 18/36 smooth as a babys b...

and 2 sod runways crossing....long one is...probably 3500 and the short is 2000 or so, dont know for sure...lots of room...no obstacles.



If you come here during a fly-in, you will see alot of old biplanes that are residents here. Several WACOS...including a model 10, we even have a fella with a pristine and flying Curtiss with a OX-5 on it. A Standard and a couple of Howards, and these guys fly the wires off of these birds...none are hanger queens, and all look like they are new. 

If you come here during the WACO fly-in they have....you will see more of those old birds than you thought were still around.



I would Love to hook up also Lynn and I can put you up if overnight.



My cell is available to any on this list, just ask.

_________________
Don G.
Central Illinois
Kitfox IV Speedster
Luscombe 8A
RV9A

Don G

Joined: 10 Jan 2006
Posts: 156
Location: Central Illinois

Posted: Wed Mar 19, 2008 1:21 pm Post subject: Re: Rotax 912 80HP Idle RPM

Dick,

I would certainly be interested in the engine you saw...if you can find that brochure post the name of it or if they have a web site..Always interested in new engines..

_________________
Don G.
Central Illinois
Kitfox IV Speedster
Luscombe 8A
RV9A

pulsair(at)mindspring.com
Guest

Posted: Wed Mar 19, 2008 2:05 pm Post subject: Rotax 912 80HP Idle RPM

Ken,

 Do you have a static port on your Fox and confirm that you have a  reliable airspeed? I fly the Downwind at cruise and when I am abeam the  approach end throttle back until I indicate 70 knots. I do not start my  base until I have 70 knots. As I turn base at 70 knots I check the wind velocity  and decide whether I want to use flaps. As I turn base to final I throttle  back to 2,000 Rpm and trim for 60 knots. When I am over the fence I do not want  to be more than 60 knots. I flare and touch down. At this time I have to apply  just a little toe brake to make the turn off. Once I make the turn off I keep  the throttle set at 2,000 Rpm until I get to the hanger. I have about 300  hours on my brakes and just replaced them. They showed little wear but I  replaced them anyway since I had it all apart. The only time I ever crab or slip  is when I am to high because I wasn't paying attention. Don't be frustrated, we  all started out that way. I have a harmonic vibration at about 3,000 Rpm that  drives me crazy. I changed the isolator amounts and played with it until I just  ignore it. The engine has never belched or farted in that time so I just  pat the panel and say, "I love you anyway." Jeff  Classic IV  

 [quote]   ---

kerrjohna(at)comcast.net
Guest

Posted: Wed Mar 19, 2008 2:43 pm Post subject: Rotax 912 80HP Idle RPM

I guess speed is relative--I cross the fence at 55 mph not knots. my stall is 40ish. no float. 

  

 John Kerr

  

 [quote]-------------- Original message -------------- 

From: "jeff puls" <pulsair(at)mindspring.com> 

    Ken,

 Do you have a static port on your Fox and confirm that you have a reliable airspeed? I fly the Downwind at cruise and when I am abeam the approach end throttle back until I indicate 70 knots. I do not start my base until I have 70 knots. As I turn base at 70 knots I check the wind velocity and decide whether I want to use flaps. As I turn base to final I throttle back to 2,000 Rpm and trim for 60 knots. When I am over the fence I do not want to be more than 60 knots. I flare and touch down. At this time I have to apply just a little toe brake to make the turn off. Once I make the turn off I keep the throttle set at 2,000 Rpm until I get to the hanger. I have about 300 hours on my brakes and just replaced them. They showed little wear but I replaced them anyway since I had it all apart. The only time I ever crab or slip is when I am to high because I wasn't paying attention. Don't be frustrated, we all started out that way. I have a harmonic vibration   at abo ut 3,000 Rpm that drives me crazy. I changed the isolator amounts and played with it until I just ignore it. The engine has never belched or farted in that time so I just pat the panel and say, "I love you anyway." Jeff Classic IV  

 [quote] ---

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Wed Mar 19, 2008 3:46 pm Post subject: Rotax 912 80HP Idle RPM

Don-

Holler when you have a fly-in coming up...either here if it's of  

general (list) interest, or privately if not. Would love to see the  

Waco's.



Lynn Matteson

Grass Lake, Michigan

Kitfox IV Speedster  w/Jabiru 2200

flying w/480+ hrs

do not archive

On Mar 19, 2008, at 5:17 PM, Don G wrote:



 	  Quote: 	
		   



 Lynn,

 I am based at Shelby County airport. (2HO)..have a hangar there and  

 if you get down this way in bad weather...any Kitfox can spend the  

 night inside my spot...I can Push the Luscombe outside...it can  

 take it!

 Only 100LL  there but I will cart anyone to the BP station  to get  

 a couple cans of autogas.

 The airport is just west of Lake Shelbyville, a large  

 lake...probably 30 miles long north/south. I live on the east side.

 We have 6500 feet of just resurfaced asphalt- 18/36 smooth as a  

 babys b...

 and 2 sod runways crossing....long one is...probably 3500 and the  

 short is 2000 or so, dont know for sure...lots of room...no obstacles.



 If you come here during a fly-in, you will see alot of old biplanes  

 that are residents here. Several WACOS...including a model 10, we  

 even have a fella with a pristine and flying Curtiss with a OX-5 on  

 it. A Standard and a couple of Howards, and these guys fly the  

 wires off of these birds...none are hanger queens, and all look  

 like they are new.

 If you come here during the WACO fly-in they have....you will see  

 more of those old birds than you thought were still around.



 I would Love to hook up also Lynn and I can put you up if overnight.



 My cell is available to any on this list, just ask.



 --------

 Don G.

 Central Illinois

 Kitfox IV Speedster

 Luscombe 8A



 http://www.geocities.com/dagger369th/my_firefly.htm





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=171060#171060

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

patreilly43(at)hotmail.co
Guest

Posted: Wed Mar 19, 2008 5:46 pm Post subject: Rotax 912 80HP Idle RPM

Lynn & Kitfoxers, Eaa chp # 22  at Cottonwood airport in Rockford, IL has a lightsport fly in scheduled for Sat June 22. You don't have to be light sport. Bring an RV or anything you can get into our grass strip. Come on down tell them Pat Reilly invited you. And I'll see you there.

  

 Pat Reilly

 Mod 3 Rebuild

 Rockford, IL



 	  Quote: 	
		   From: lynnmatt(at)jps.net

 Subject: Re: Kitfox-List: Re: Rotax 912 80HP Idle RPM

 Date: Wed, 19 Mar 2008 19:43:45 -0400

 To: kitfox-list(at)matronics.com

 

 --> Kitfox-List message posted by: Lynn Matteson <lynnmatt(at)jps.net>

 

 Don-

 Holler when you have a fly-in coming up...either here if it's of 

 general (list) interest, or privately if not. Would love to see the 

 Waco's.

 

 Lynn Matteson

 Grass Lake, Michigan

 Kitfox IV Speedster w/Jabiru 2200

 flying w/480+ hrs

 do not archive

 

 

 On Mar 19, 2008, at 5:17 PM, Don G wrote:

 

 > --> Kitfox-List message posted by: "Don G" <donghe(at)one-eleven.net>

 >

 > Lynn,

 > I am based at Shelby County airport. (2HO)..have a hangar there and 

 > if you get down this way in bad weather...any Kitfox can spend the 

 > night inside my spot...I can Push the Luscombe outside...it can 

 > take it!

 > Only 100LL there but I will cart anyone to the BP station to get 

 > a couple cans of autogas.

 > The airport is just west of Lake Shelbyville, a large 

 > lake...probably 30 miles long north/south. I live on the east side.

 > We have 6500 feet of just resurfaced asphalt- 18/36 smooth as a 

 > babys b...

 > and 2 sod runways crossing....long one is...probably 3500 and the 

 > short is 2000 or so, dont know for sure...lots of room...no obstacles.

 >

 > If you come here during a fly-in, you will see alot of old biplanes 

 > that are residents here. Several WACOS...including a model 10, we 

 > even have a fella with a pristine and flying Curtiss with a OX-5 on 

 > it. A Standard and a couple of Howards, and these guys fly the 

 > wires off of these birds...none are hanger queens, and all look 

 > like they are new.

 > If you come here during the WACO fly-in they have....you will see 

 > more of those old birds than you thought were still around.

 >

 > I would Love to hook up also Lynn and I can put you up if overnight.

 >

 > My cell is available to any on this list, just ask.

 >

 > --------

 > Don G.

 > Central Illinois

 > Kitfox IV Speedster

 > Luscombe 8A

 >

 > http://www.geocities.com/dagger369th/my_firefly.htm

 >

 >

 >

 >

 > Read this topic online here:

 >

 > http://forums.matronics.com/viewtopic.php?p=171060#171060

 >

 >

 >

 >

 >

 >

 >

 >

 >

 >> 

 

 


	


  [quote][b]

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