New engine for my jet!


SteveA

GT Owner/B.O.D
Mark IV Lifetime
Dec 13, 2005
3,686
Sandpoint Id
I thought I was kinda cool before I read this thread. Bastards.

Yep, every time I think I've got my shit together I log onto this forum and get big ol' dose of reality.:frown.......:lol
 

33Bravo

GT Owner
Mark II Lifetime
Nov 3, 2006
686
Minneapolis, MN
l39.jpg

My “project” doing a re-engine on my L39 is almost complete! Its been 17 months. Other than the physical engine mounts, the inlet ducting, exhaust/bypass ducting, pneumatics, hydraulics, electrical, removal of APU, linkages, instrumentation, computers, weight/balance, FAA....... its really been pretty straight forward... First flights were last week – and the results look very promising!

We took the Russian engine out (Ivchenko AI25-TL) and replaced it with an American engine (Garrett TFE-731). Net result is the plane is lighter, more thrust, (much) better throttle response (6 seconds vs. 12 second spool up) – and better fuel consumption. Access to parts / expertise for the engine also is greatly improved.

Finishing flight testing, and then “Natasha” can come home to Minnesota!!

Videos of 3rd flight (and me getting re checked out):

http://www.youtube.com/watch?v=TzmQZao83RY
http://www.youtube.com/watch?v=zf_69oSPCGw
 

Mike Mosing

GT Owner
Mark II Lifetime
Aug 9, 2009
917
Florisiana
Congrats 33Bravo!!! I was wondering how the project was coming. I looked back and it has been since March of last year since we chatted. Camilo finished the painting of my GT and L-39, then unveiled and presented it to me at Rally 7. It proudly hangs in my Garage now. I am looking forward to talking to you about the conversion and the maintenance plan on the 731 you submitted for FAA approval. That is going to be one nice L-39. Here is the painting and a recent photo of me with AIM-9X missiles installed. Not sure if you had seen those yet. :thumbsupiphone 471.jpgiphone 940.jpg
 

BlackICE

GT Owner
Nov 2, 2005
1,415
SF Bay Area in California
Very nice!
 

Chris A.

GT #32
Mark II Lifetime
Feb 6, 2007
1,201
Ortega Mountain, CA
 

Mike Mosing

GT Owner
Mark II Lifetime
Aug 9, 2009
917
Florisiana
:rofl:rofl:rofl170 Gallons per hour...still want to sell her???:rofl:rofl
 

BlackICE

GT Owner
Nov 2, 2005
1,415
SF Bay Area in California
:rofl:rofl:rofl170 Gallons per hour...still want to sell her???:rofl:rofl
I guess AAFE standards will soon be implemented.
 

GT1261

GT Owner
May 28, 2012
315
This is sick, I also thought is might be a model thread but now I have been reading with a complete hanging mouth.
You guys rock, no question about it.

I have always dreamed of flying a fighter Jet, this is way to cool guys.
 

Thugboat

GT Owner
Jan 20, 2009
851
Humble Texas
Holy Jet Fighter Batman!!!

Mike, Do you notify everyone in the state before you fly that thing? I do not know the protocol but would think one wrong move and somebody wants to have target practice with you. Any good stories of the USAF coming to greet you?

170 gallons an hour. How far will that get you?

Larry B.
 

Vince H

GT Owner
Mark II Lifetime
Jul 23, 2012
2,383
Southern California
How cool is that. You own a Russian jet! That's the coolest thing I've heard in awhile. Good for you.

Vince H
 

Sinovac

GT Owner
Mark II Lifetime
Jul 18, 2006
5,689
Largo, Florida
I thought I was kinda cool before I read this thread. Bastards.
 

BlackICE

GT Owner
Nov 2, 2005
1,415
SF Bay Area in California
Holy Jet Fighter Batman!!!

Mike, Do you notify everyone in the state before you fly that thing? I do not know the protocol but would think one wrong move and somebody wants to have target practice with you. Any good stories of the USAF coming to greet you?

170 gallons an hour. How far will that get you?

Larry B.
They don't fly supersonic so my guess is less than 400 miles, or 2.35 mpg. That's with a stock engine. I think his new one is more fuel efficient.
 

Fast Freddy

GPS'D 225
Mark II Lifetime
Aug 5, 2005
2,556
Tucson, Arizona
View attachment 27903

My “project” doing a re-engine on my L39 is almost complete! Its been 17 months. Other than the physical engine mounts, the inlet ducting, exhaust/bypass ducting, pneumatics, hydraulics, electrical, removal of APU, linkages, instrumentation, computers, weight/balance, FAA....... its really been pretty straight forward... First flights were last week – and the results look very promising!

We took the Russian engine out (Ivchenko AI25-TL) and replaced it with an American engine (Garrett TFE-731). Net result is the plane is lighter, more thrust, (much) better throttle response (6 seconds vs. 12 second spool up) – and better fuel consumption. Access to parts / expertise for the engine also is greatly improved.

Finishing flight testing, and then “Natasha” can come home to Minnesota!!

Videos of 3rd flight (and me getting re checked out):

http://www.youtube.com/watch?v=TzmQZao83RY
http://www.youtube.com/watch?v=zf_69oSPCGw
Damn dude!!! :eek you got to be the coolest cat on this site :bow
 

steved57

GT Owner
Mark IV Lifetime
Le Mans 2010 Supporter
Mar 29, 2008
1,830
kilgore tx
Yeah thats "more" than cool
 

Mike Mosing

GT Owner
Mark II Lifetime
Aug 9, 2009
917
Florisiana
I can squeeze 600 NM with the drop and tip tanks topped in cruise and get about 155 GPH. But a typical "sortie" is 45 minutes out and back with lots of vertical and horizontal turns down at lower (8000') altitudes. There are roughly 260 of these in private hands. 4 different models were built with most of them being the "C" model...strictly training. The ZO Model has the pylons on the wings, the ZA model (mine) has beefed up wings and gear to handle the weight of the 23mm gun under the nose. Mine is still there but plugged. the other model was a C model set up differently to tow target drones. Only about 35 or so ZA models are in civilian hands. It is fun to go to airshows and see the real fighter pilots smile and say "Whats that"?? and I have those missiles on my jet too. haha. The FAA does monitor them and they operate under a special certificate so you are limited to what you can do with them. What my friend has done is make this airplane better with this installation, substantially. I have to admit that getting my GT on NOLA Motorsports track for Rally 7 was just as exciting as flying my Albatros.
 

fjpikul

GT Owner
Mark IV Lifetime
Le Mans 2010 Supporter
Jan 4, 2006
10,485
Belleville, IL
Sorry, but weren't these Czech built for the Soviets?
 

Empty Pockets

ex-GT Owner
Mark IV Lifetime
Le Mans 2010 Supporter
Oct 18, 2006
1,322
Washington State
When I saw the thread title and noted it was a Russian plane, I figured it had to be a radio controlled 'model'! :willy

VERY KOOL!!! :thumbsup:thumbsup
 

BlackICE

GT Owner
Nov 2, 2005
1,415
SF Bay Area in California
I think Frank is right, they were built by the Czechs and used by the Russians.
 

twobjshelbys

GT Owner
Jul 26, 2010
5,374
Las Vegas, NV
Sorry, but weren't these Czech built for the Soviets?
They call that outsourcing. I'll bet the call center was in Poland.
 

otis

GT Owner
Mark II Lifetime
Nov 13, 2011
348
Stillwater, MN
Any time Rob! Lets plan something this spring!
You got it. I'm ready any time. That thing is is plain awesome.

Rob