some "official" TD Hs129 rpm recommendations ?
 

just because there is not the 'typical' 80% pitch available in the Hs129. Are there any "official" TD rpm recommendations in with range the engine works best or is at least not overstressed ?

Hi, I've been having the same questions :)

This site has some manuals, but you have to register to see them.

They appear to be only for gunnery and bombing. I can't find anything that looks like a table of engine management, or something similar.

However, they do have lots of great pictures, and are worth a look.

http://i984.photobucket.com/albums/a...ferences/3.jpg
http://i984.photobucket.com/albums/a...ferences/2.jpg
http://i984.photobucket.com/albums/a...ferences/1.jpg
http://i984.photobucket.com/albums/a...erences/13.jpg
http://i984.photobucket.com/albums/a...erences/12.jpg
http://i984.photobucket.com/albums/a...erences/11.jpg
http://i984.photobucket.com/albums/a...ferences/7.jpg
http://i984.photobucket.com/albums/a...erences/10.jpg

Here's some text and a table on what appears to be a bombing guide. However, I can't read a word of this font :)

http://i984.photobucket.com/albums/a...ferences/4.jpg
http://i984.photobucket.com/albums/a...ferences/5.jpg
http://i984.photobucket.com/albums/a...ferences/6.jpg

Here it is, a manual on the Gnome-Rhone engine in the Hs-129 B :grin:

http://www.cockpitinstrumente.de/index-englisch.htm

Search for Gnome-Rhone on the right, and the document should be the first result.

http://i984.photobucket.com/albums/a...erences/14.jpg

take-off, combat, max continuous, cruise? Google translate doesn't know some of these words :)

Startleistung = Take Off
Steig- und Kampfflugleistung = Climb and Combat Power
Höchstzulässige Dauerleistung = Max Continious Power
Höchstsparleistung = Economy Cruise

dauernd = continious
Ladedruck = manifold pressure
Drehzahl = RPM
PS= horsepower

Thanks for the translation :grin:

Unfortunately, there's a problem with the CEM in Il-2 with this plane. It's impossible to match the parameters given in this table. For instance, reducing power to 1.1 ATA makes it impossible to have RPMs above 2000. 2750 is the max RPMs available with full power and WEP!

i personally dont expecting that reallive datas are working with any plane in game.............means that you can fly a plane with a real live handbook and gets the estimated performance.

therefor i asked TD, at least one person should know wich limits he programmed in the IL2's Hs129.

:(
so far i always kept the rpm as 2500 as max with 80% throtte to keep the engine in good condition.

but it seems this engine is just one more of this "long runners" in game. open the coolingflaps, give 110% throttle and the pitch at max....i had the engine running for over 40minutes now in a short test.......................... :(

If you toggle the auto prop pitch, you will have access to the higher rpms (>2750) with your prop pitch keys.

Are those pictures of the ZFR 3 A from a wartime manual?? If so, I think they constitute evidence that the telescopic gunsight was installed on the Hs129B-3. Perhaps DT would consider adding it as an option for the Hs129B-3 in a future patch??

Cheers,

Fafnir_6

The only evidence (that I've seen) of the ZFR's use in combat is from Franz Oswald of 13.(Pz)/SG 9 who noted "that the ZFR 3B telescopic gunsight made target acquisition difficult." (Quote taken from Martin Pegg's Hs 129 book).

How that applies to the entire production run of the B-3, I don't know.

Nice document on the engine btw. Funny thing I have less problems reading technical german than normal german. If someone wants it translated, I could work together with a native speaker (in english).

Thats the very same only evidence of the ZFR, that we had (you know, we used your collection). Manuals might be somewhat misleading, as they were produced prior to the delivering of planes to the flight groups. So the reference about this installation is veeeery weak and was regarded as not (yet) worth the effort. Furthermore, it wouldn't be possible to simulate a zoomed periscope view outside the canopy (the pilot couldn't press his eye on it). It would be somehow modeled wrong anyway.

The modeling of the ZFR was already begun, so if there eventually come up new references (I doubt it), I think, it would be a nice small addition.

fly cannon attacks(dive fast, climb slow at full throttle), then come back and report. ;)

i report..............and ??
i dont know from what heights you are starting your dives, but i have no proplems with the engine doing that at full throttle, full fine pitch on auto and cooler open.

anyway, this not beeing able to control the pitch like the other planes is a "Schnapsidee" IMHO.


but ok, il2 is gettting old ;) , and for a more "proper" enginemanagement we most propably have to wait for SoW/BoB/CoC (or however it will be called :D )

Hs129 has a different prop pitch control. This had been well researched and is quite well displaying the real thing. It has an electric automatic controller, which prevents higher resolutions than 2750RPM. If you want to destroy your engine, use manual pitch.

One thing that was a bit odd is that you can use the compressor stage controls to "Switch on" something. At least the engines gave a roar, but you could only have compressor 1 as setting, so shouldn't there be no compressor stage option in the first place if you can't switch between two?

Cool. Thanks for the responses, guys. As far as implementation goes, would it not be possible to use a variant of the telescope view in the Ki.43, for example, to supplement the reflector sight using either Shift+F1 or C? This is bordering on Luft '46, however, so I understand if DT members don't wish to spend time on it.

Cheers,

Fafnir_6

Yep, and to add to that, the only two known photos of an operational B-3 show it fitted with the standard B-2 gun sight.

Probably what happened is that the very, very first aircraft had the ZFR fitted, and the later ones used the standard B-2 sight. With only 25 planes produced and a service life of ~6 months, though, the true reality will probably never be known.