Martinez.. reading your post,.. well.. has dis-heartened me a little.. fact is I dont have the money, to buy a aircraft let alone ship it from foriegn shores.. But I am determined to at least do my best. to finish it, surely how hard can it be , to find some internals, even if its not all of them, but at least the main parts, seat stick panel etc ??.My Problem is i dont speak russain,Egyptian,iraqi,or afghan.. Arabic, ..
I just dont know where to turn.:(. it might well be as you say, Just a empty painted box by the time i finished it.. But even if it is that.. it is better than what it is now.. and like i said, Unique in this country as it is our only one Su-7 .I have allready come up against brick walls regarding help, from one of the countries who used lots of them in the past.

Stubborn but at least I`m glad to hear that you are strongly determined to do something with it. All I can help so far is to point you to some friends, known pleople in Czech and Slovak republic(former Czechoslovakia) owning private aircraft museums, a/c collections and junkyards that are known for reconstructing of cockpits, airframes or bartering with aircrafts at all. I do not guarantee any result, they might point you to another people which say at last “I`m sorry” to you, but give it a try.

1. Technical museum of Military history, these guys are doing mostly cockpit reconstructions of former Cz. military aircrafts.
http://vhtm.valka.cz/
http://vhtm.valka.cz/projekty.htm
2. Aircraft museum Olomouc, an aircraft restoration society, they are working for another museums(also abroad) helping them to renew their exhibits. Could be promising.
http://www.letecke-muzeum.cz/kontakt/
3. Air park, a private collector and barterer of former Czechoslovak aircrafts, a lot of stuff in his deposits, mostly miiltary.
http://www.airpark.wz.cz/
4. Vyskov Aircraft historic museum, another private museum, nice collection of military planes including several Su-7, they perform restoration work as well
http://www.lhs-vyskov.cz/
http://www.lhs-vyskov.cz/airexp.html
5. Private aircraft collection, Martin town, restoration of museum exhibits.
http://www.aeromuzeum.sk/index.php?nav=3&ID=foto
P.S. will check our archives for any airframe, cockpit drawings and plans as we still have many Su-7 manuals in our libraries. I will let you know.

P.S: and please stop calling the Su-7 “she” as it is a bit offending bcs the thing was a monster, robust and rude and almost twice as much as the Mig-21. Used to call them iron ingots from soviet blacksmithery as well bcs it was always tough to maintenance them. 😀

Anyway.. few thing i remember about that APU is the high pitch screaming noise.
I even got to start it up in a portable testbench outside.
It rotate at 40000rpm, needless to say ear-protection was required, i could feel the vibration hitting my guts as it started up.
Thanks

Interesting, just found another notes from my RD-33 classes some time ago, the GTDE-117 rotates max. 33500±2400 per minute, Turbine Outlet Temperature (TOT) max. 860deg C, compressor pressure ratio 2,5, Time to start up the RD-33 is 9seconds, Total time in operation during the ENGINE START UP mode max. 50seconds, operational altitudes 0-2500m.
I think will be similar for the GTDE-117-1 used with each AL-31 in the Su-27, 30, 34, 35 a/c. You can hear it here.
http://deton.lietadla.com/gtde117-rd33.avi

Makes totaly sens martinez.
After all APUs are the first thing that comes to life from a cold start of an aircraft.

I live very close to ANDENES Airbase(Norway) where our P3C are station and i can clearly hear the destinctive sound as the APU starts up, followed by the engines shortly after.
A bigger aircraft i know, but the same proceedure.
Thanks

Interesting, could you please provide more information about the Orion`s APU, e.g. its lifetime, TBO, number of starts, how long it can work on the ground than just you live near the base and hear their distinctive sound prior to engine starting up? I think there is a lot of difference here, as APUs on big military, cargo, passenger aircrafts are supposed to work very, very long time, which means hours feeding “juice” to thirsty on-board equipment which is pointless when comparing to a military fighter jet.
As I said earlier the GTDE-117 lifetime has never been an issue that has concerned Mig-29 users around the world as it comes off the aircraft with TBO intervals much longer than the engine RD-33 itself. The GTDE-117 is mounted to the KSA aircraft accessory gearbox which provides power taken from the APU to aircraft hydraulic, fuel and oil pumps as well as electric generators and can run on the ground in the ENERGOUZOL(power unit) mode for only 15 minutes(bcs of heating) and in the ENGINE START UP mode for 1 minute. Once the first RD-33 engine spins at 20%, the APU clutch is disconnected and cooled down to start running the second RD-33 engine. After that the KSA aggregates are driven by RD-33 engines.
The GTDE-117 time between overhaul interval is 8 years or almost 3000 engine start up procedures! Please calculate whether the GTDE-117 is a lifetime critical component on the Mig-29 when hypotetically speaking the aircraft is scheduled to fly 150 hours per year?

In western jets you use the battery only for small things, closing/opening canopy etc. If you make your functional checks on the ground for example you’ll use external sources as well instead of the APU to save live of the APU. During daily routine operations aircraft with an APU will use it for autonomously powering up the aircraft and start the engines.

Regarding batteries we currently use two 15-SCS-45B SilverZinc type with total capacity 90-100Ah(28,5V) on the Mig-29. Their main purpose is autonomous engine start as well as a back-up source of electricity for instruments and avionics in case the main DC generator is malfunctioning. In 2008 I witnessed an airforce ceremony where 10 Mig-29 started up engines with help of built-in batteries. I have somewhere a whole video from that event, but here are som pictures from a friend.
http://deton.lietadla.com/mig29ceremony2008/gal.php

I wonder why the Su-34 has no APU when even the baseline Su-27 has one. I was of the impression those aircraft had one, but that article was a little bit confusing..

Check that again I think the baseline Su-27 has two GTDE APU`s, one for each engine. Am I right? Mig-29 has one GTDE-117.

@Haavarla,
if the Su-34 is dependent from external supplies for engine start it is somewhat unlikely that it features an APU at all in its current form.

With external ground power source you start the APU at first, then APU turns with the compressor engine. You can do the same with aircraft batteries, but bcs of excessive current drawn from the battery, under normal peace conditions external ground sources are used. The Su-34 does deffinitely have APUs, rather two for each AL-31 but they are looking for better solution like on the Su-35 to have one APU which can be repeatedly started with on-board accumulators.

VIDEO> Mig-29 engine APU start up, check the APU exhaust.

http://deton.lietadla.com/gtde117-rd33.avi

To make this clear its not gonna happen in the near future as we signed another deal with Russian RSK taking care of our Mig-29 fleet. Finally, those constant glitches with the upgraded avionics on the MIL-STD-1553B were solved and Migs are cleared to fly everywhere and will soon undergo maintenance after 1000f.h. There is not even an attempt to debate about Mig replacement so the article above cant be taken seriously. Well, a parliamentary election will be held in Slovakia at the end of this week.
Talking the near future, Slovak AF current plans undergoing are to upgrade all military Mi-17 Hips to be fully compliant with the STANAG 4555(Mission equip. packages for battlefield helicopters) to fill up NATO helo gap. Lately, even higher priority task was to buy a new transport aircrafts as the fleet of several L-410 and two An-26 are not satisfying military needs anymore bcs of many Slovak military troops abroad. The deal was cancelled because of the crissis, but is still actual as those An-26 are running out of time.

The best replacement for Mig-29 is a better Mig-29 which is Mig-35 🙂

yeah, agree with that 100%, but if they buy some west crap in the distant future I quit.
😉

A quick Google doesn’t reveal any R.550 on IRAF MiG-21’s, but it is feasible. The following are MiG derivatives using R.550. And the Romanian Lancer could use them, too.

Sorry, I messed up that a little bit, thought of soviet R-55 and not the french R550 Magic..:o