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View Full Version : Feather Props....P38 only???



C.L.B.
07-28-2004, 03:58 PM
He guys, the only time I get a message confirmation for prop feathering so far is on the p38. It will actually say "props feathered" and "props unfeathered". Is this the only aircraft that you can feather with? Is there only a handful you can feather? Or is there a bug that doesn't give the confirmation on some birds? I've never seen it on any 109's....perhaps in real life you couldn't feather a 109 prop? http://ubbxforums.ubi.com/images/smiley/16x16_smiley-indifferent.gif

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C.L.B.
07-28-2004, 03:58 PM
He guys, the only time I get a message confirmation for prop feathering so far is on the p38. It will actually say "props feathered" and "props unfeathered". Is this the only aircraft that you can feather with? Is there only a handful you can feather? Or is there a bug that doesn't give the confirmation on some birds? I've never seen it on any 109's....perhaps in real life you couldn't feather a 109 prop? http://ubbxforums.ubi.com/images/smiley/16x16_smiley-indifferent.gif

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_VR_ScorpionWorm
07-28-2004, 04:04 PM
you cant feather prop on single engine fighters, it was for twin(or multi) engined planes so the aircraft can continue to run on one engine with less drag from the other. Of course you can improvise a feathered prop by putting prop pitch to Zero.

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Yellonet
07-28-2004, 04:06 PM
It's only a few planes that has the ability to feather the props.. He-111, maybe the Me-110?


- Yellonet

x__CRASH__x
07-28-2004, 04:15 PM
I've seen the message, but the prop didn't feather when I did it.

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theknightsofni
07-28-2004, 04:18 PM
one thing weird is that you can feather props while the engine is still on, causing them to stop spinning and when u unfeather it starts again

VOL_Hans
07-28-2004, 04:24 PM
Actually put the pitch at 100% if the engine dies.

100% pitch seems to give less drag than 0% pitch, it's backwards, but thats how it works...

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_VR_ScorpionWorm
07-28-2004, 04:29 PM
Are you sure? I seem to always glide longer with prop pitch at 0, less bite its taking from the air, take a fan for instance, its at 100%, make it go 0% and it will be blowing hardly any air. Same thing for diving, dive at 100% and you will gain RPM, wind is hitting the prop causing it to turn faster, put it to 0% and you will dive faster, no drag, engine doesnt rev as high and wind passed through the prop faster. Same thing for climbing.

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BfHeFwMe
07-28-2004, 04:59 PM
What would be the point in feathering a single engine fighter, your not going anywhere.

VOL_Hans
07-28-2004, 05:05 PM
Maybe they changed it in the patch.

The only reason for wanting to get as close as you can to a feather in a single engine plane is to reduce drag as you glide. If you are hit and are somewhere over the lines, it may be best to glide to the freindly side if you can.

I know that sometimes bailout is just not an option, low level strike planes may be left without an engine, with too little altitude to bail, or still in range of the enemy FlaK.

Once again, your best bet is to try to glide out of range, belly in, and get out!

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C.L.B.
07-28-2004, 06:27 PM
Thanks all for the replies http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif I'll try the prop pitch to simulate it.
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>I've seen the message, but the prop didn't feather when I did it.<HR></BLOCKQUOTE>

I think it is working, you just can't "graphically" see the change on the prop blades.

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>What would be the point in feathering a single engine fighter, your not going anywhere. <HR></BLOCKQUOTE>

My reason is kind of like Hans'...Sometimes when I'm getting owned online (which is every flight)my engine will get hit, or quit on me, but I may be going to fast to bail, so I need more time to slow down without suddenly falling if I'm at low altitude. Also sometimes it is nice to glide to a landing if the engine dies close to homebase, the feathering would help this glide.

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Copperhead310th
07-28-2004, 07:29 PM
ok i'm a little confused.
Since the CEM in us planes is virtualy
Non-existant....i very seldon use any thing including prop pitch. i'm a hit the damn switch and fly kinda guy. lol http://ubbxforums.ubi.com/images/smiley/16x16_smiley-very-happy.gif
but suppose i wanted to use prop pitch in a p-47/51/40 Ect. what would be the reaseons to use it and when. http://ubbxforums.ubi.com/images/smiley/blink.gif

also...just what are magnetos and what do they do, when are they used? http://ubbxforums.ubi.com/images/smiley/1072.gif

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Korolov
07-28-2004, 08:01 PM
Magnetos drive the spark plugs - theres two so if you loose one, you have a backup. It could help if your engine seems to be low on power output to test different magnetos in case one might have a problem.

Also, turning the magnetos off at low speed gives a slight burst of torque.

http://www.mechmodels.com/fbstuff/klv_sigp38shark1a.jpg

BennyMoore
07-28-2004, 10:03 PM
I've noticed that - when my engine is out of fuel, fiddling with magnetos and ignition gives it shots of torque. Why is that? Bug?

Korolov
07-28-2004, 10:25 PM
Haven't got a clue - I think its because the engine abrubtly stops rather than smoothly slows down.

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Rab03
07-29-2004, 01:08 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by BennyMoore:
I've noticed that - when my engine is out of fuel, fiddling with magnetos and ignition gives it shots of torque. Why is that? Bug?<HR></BLOCKQUOTE>

Couple of times I managed to use these short bursts of power to land safely.

Here comes the reason because of I find this feature interesting, and even realistic:
Once when I was driving a car I ran out of fuel. I was driving on reserve more than 30 miles (fuel gauge was showing empty). Anyway, at one point engine started cutting out and died. Being near the town, I tried to ignite it, and it worked. I guess injection system was sucking drops or vapor of fuel, so I could travel half a mile before igniting it again. This way I managed to get home travelling 3 miles.

ELEM
07-29-2004, 03:31 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by BfHeFwMe:
What would be the point in feathering a single engine fighter, your not going anywhere.<HR></BLOCKQUOTE>

To maximise your glide distance of course! http://ubbxforums.ubi.com/images/smiley/blink.gif

I wouldn't join any club that would have ME as member!

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BinaryFalcon
07-29-2004, 08:47 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by ELEM:
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by BfHeFwMe:
What would be the point in feathering a single engine fighter, your not going anywhere.<HR></BLOCKQUOTE>

To maximise your glide distance of course! http://ubbxforums.ubi.com/images/smiley/blink.gif
<HR></BLOCKQUOTE>

Feathering on a single engine plane isn't going to do much for your glide, unless you just can't get the prop stopped at all.

In general, the ability to feather a piston single is of little value, as the gear to do it will just add unecessary weight and it's going to be of almost no practical use at all. Usually, you want the prop to continue spinning in a single if the engine goes out, as you'll need the help from the spinning prop to get the engine going again. Feathering it would only be counter productive to getting it running again.

Since your only hope to continue flying is to get the engine running, there's no good reason to need to be able to feather it. If you can't get the engine started again, you're coming down anyway, and the ability to feather the prop isn't going to do you a whole lot of good.

If you really need to cut down on the drag as much as possible, you can usually raise the nose enough to get the prop to stop (in a real aircraft), which is nearly as good as having the prop feathered. Once it stops, resume pitching for best glide (or minium sink rate, if over water and you need the time more than the distance).

The only situation where I can think of a single needing or having feather capability is on a turboprop with a free turbine, where a stopped engine won't stop the prop from spinning, and a spinning prop won't do a whole lot to help restart the engine either. In that case, feathering would be of practical value. Otherwise, it's basically a waste.

IL2-chuter
07-29-2004, 11:38 AM
Heinze Knoke in his book "I Flew for the Fuehrer" recalls flying a brand new 109G6 on a mission where his cooling system was shot and leaking. He disengaged and flew towards base and when the temp reached max he shut down the engine, feathered prop (all german props were featherable) and glided until the engine cooled a bit. He then restarted and powered on until the engine overtemped again. He repeated this process until he was out of altitude and he had to belly-in in some field. He called the base and gave his position and, after waiting an hour or two, a twin engine Siebel flying around picking up pilots finally stopped by to pick him up.

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IL2-chuter
07-29-2004, 12:19 PM
After Steve Hinton crashed the RB-51 (Shackleton Griffon contra-prop Red Baron P-51 racer) after the engine went south, he said he easily had the runway made while the engine was idleing but when the engine suddenly seized he had six big airbrakes in front of him and he couldn't make it halfway to the runway. He MIGHT have been in better shape if the prop didn't have a low pitch catch (like most all constant speed props other than WW2 japanese) but who knows.

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BfHeFwMe
07-29-2004, 04:18 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Copperhead310th:
ok i'm a little confused.
Since the CEM in us planes is virtualy
Non-existant....i very seldon use any thing including prop pitch. i'm a hit the damn switch and fly kinda guy. lol http://ubbxforums.ubi.com/images/smiley/16x16_smiley-very-happy.gif
but suppose i wanted to use prop pitch in a p-47/51/40 Ect. what would be the reaseons to use it and when. http://ubbxforums.ubi.com/images/smiley/blink.gif

also...just what are magnetos and what do they do, when are they used? http://ubbxforums.ubi.com/images/smiley/1072.gif

http://imageshack.us/files/copper%20sig%20with%20rank.jpg
_http://www.310thVFS.com
_<HR></BLOCKQUOTE>

Use it to control RPM top end. If you can set it in a US fighter to limit RPM to 30,000 or slighly less, you'll rarely have an overheat. Most overheats in game aren't caused by the hard manouvering but RPM's uncontrolled and beyond limits. You'll have pretty much the same speeds, accelleration may be slighly slower. The extra RPM is capped by the prop pitch allowing blades to take bigger bites, some planes you may get faster top and cruise speeds.

It's a personal thing, some guys like flying 28 or 29,000 RPM with water boost full, and some like 30,000 with throttle set to 100% no boost for combat. Last one is my fav, that's roughly 90 to 94% on most US planes. Spitfire Mk-V's I'll fly with 90%, keeps the RPM just below the green zone barely touching it. Never have had overheat issues with that plane.

StellarRat
07-29-2004, 04:34 PM
30000 RPM! LOL!

I think you mean 3000 RPM. http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif