Bent prop/engine damage

[Motherbrain]

I was practicing power out landings In the La-5 and I bounced a tad to hard bending a blade.

Then I wondered if the engine would still start. I wouldn't. Does prop damage always damage the engine? 

 

If so I don't think it should. There are many instances when a plane only damages one of its propeller blades and the engine keeps turning. 

Only for the now uneven propeller to rip the power plant from its mount.

 

http://www.youtube.com/watch?feature=player_embedded&v=Tmxh9RPjZUg

 

Cut to 5:40 to see what I'm talking about.

 

Could we see this in BoS?

 

Thank you.

Edited July 27, 2014 by GojiraAlpha

[pilotpierre]

From my experience all ground prop strikes require a complete engine rebuild.

 

We had a flyable Mustang at an aviation museum I used to do volunteer work at. It had one of its wheels collapse during a landing causing a pop strike.

 

It hasn't flown since because the owner cant afford the $200,000+ for the engine rebuild before it can get an airworthy certificate.

[Sternjaeger]

Damaging a single propeller blade would unbalance the whole propeller assembly, which in turn can cause catastrophic damage to the engine and airframe. It depends on how much the propeller is unbalanced: a bent tip would be a complete mess, a couple of holes or dents would probably allow you to carry on flying, albeit with limitations to RPM (the more throttle you give, the bigger the vibration). There have been cases of P-47s flying back to the UK after prop strikes on on cables in France, but again they had to fly with low RPM and with the risk of the engine coming potentially off, because the unbalancing can cause vibrations so severe that could potentially rip the engine mount and engine off the aircraft.

Edited July 27, 2014 by Sternjaeger

[Motherbrain]

I understand propeller damage always means a dead and/or ruined engine but what I'm saying is propeller damage doesn't always 

make the engine freeze instantly. Like you see in the video that F6F engine fought its busted propeller a couple seconds before catching fire.

 

I just think it would be neat to see something like that in BoS.

 

What I meant is I landed my La-5 with the engine out and one blade was bent but this somehow froze the engine. 

 

In real life the engine would still start because it wasn't turning when the prop stuck and if you started it THEN it would wreak itself.

 

Like in the Pe-2, say you make a turn a tad to low and clip a propeller blade but the engine keeps fighting it.

 

To prevent a fire you would have to shut down that engine before it sets the airframe on fire, or worse, rips from its mount and damages the wing.     

Edited July 27, 2014 by GojiraAlpha

[Sternjaeger]

I understand propeller damage always means a dead and/or ruined engine but what I'm saying is propeller damage doesn't always 

make the engine freeze instantly. Like you see in the video that F6F engine fought its busted propeller a couple seconds before catching fire.

 

I just think it would be neat to see something like that in BoS.

 

What I meant is I landed my La-5 with the engine out and one blade was bent but this somehow froze the engine. 

 

In real life the engine would still start because it wasn't turning when the prop stuck and if you started it THEN it would wreak itself.

 

Like in the Pe-2, say you make a turn a tad to low and clip a propeller blade but the engine keeps fighting it.

 

To prevent a fire you would have to shut down that engine before it sets the airframe on fire, or worse, rips from its mount and damages the wing.     

 

Fire is not your main problem there, the problem is catastrophic failure. I guess what you're trying to say is that the damage model for a prop strike is somewhat simplified, which I agree, but I don't see that as being a urgent priority.. It's interesting to note how the DM treats blades separately (you can bend just one propeller blade), but I don't know whether they're planning on doing more with that. It's probably an interesting development, especially because Russians tended to ram enemy aircraft from time to time.

[Motherbrain]

Yah that's my point the propeller/engine damage model is an off/on type.

 

Damaged prop = engine just stops. That's not what always happens in reality as seen in the video. 

 

But I understand it may not be a priority and its not really all that important. But it would still be a neat addition to the sim.     

 

I just wish I could find a better video to better show what I mean.

Edited July 28, 2014 by GojiraAlpha

[Sternjaeger]

I'm sure that the devs are well aware of the physics behind prop damage, they probably just chose not to implement it for now.