Oil question for HTC

[bj229r]

Guess ir would depend on whether the hit was in a line or in the pan (I assume these engines HAVE a pan where most the oil sits) If it's in the pan, gonna leak out regardless

[Tails]

I'm fairly certain all radial engines are 'dry sump' (no pan) and the oil is stored in an external tank. V's and inlines can be wet or dry sump, but I would assume dry sump would of been more common due to the weight savings (lack of a cast oil sump) and the ability to configure CG a little better by positioning the tank.

[Spikes]

Like I said, quite a feat...
















...once you consider it doesn't HAVE one.

 

I didn't think it did...

[Stoney]

How are most oil pumps set up on air craft? Are they mechanicaly linked or is there an external sump pump that runs by other means? Seems to me if its mechanicaly linked to the engine any at all, if the prop is turning, gears are turning, crank is tunring, and oil is being pumped out. So engine on or off engine off, shouldnt oil still leak out?

All of the ones that I know of are gear driven.  Bohdi's the best person to ask, since he works on Warbirds for a living.  Perhaps he'll stick his head in here.

[Rebel]

I'm fairly certain all radial engines are 'dry sump' (no pan) and the oil is stored in an external tank. V's and inlines can be wet or dry sump, but I would assume dry sump would of been more common due to the weight savings (lack of a cast oil sump) and the ability to configure CG a little better by positioning the tank.

IIRC, on a PW-2800, the oil 'pan' was more like a 'tank'.  I think it had a capacity of something like 25 gallons (according to my grandfather who worked close to thunderbolts, but focused on mustangs).  I know it was positioned on the top side of the fuse, just behind the cylinders.  The system was a constant cycle- hot oil coming into the tank, traveling down the fuse on either side to the oil coolers (there was a single one on each side), and then being fed to the cylinders. 

[Wingnutt]

if shutting off the engine stops oil loss, then running a reduced RPM should (IMO) cause you to lose oil slower than WOT/WEP

that makes sense..

now if you lost oil even if the engine was totally off, then oil loss being equal despite engine rpm would make sense, since that would denote the rate of loss not being tied to the engine running or not.. 

but since off = no loss  and on = loss  then RPM should be a variable for the rate of loss.

[Captfish]

How are most oil pumps set up on air craft? Are they mechanicaly linked or is there an external sump pump that runs by other means? Seems to me if its mechanicaly linked to the engine any at all, if the prop is turning, gears are turning, crank is tunring, and oil is being pumped out. So engine on or off engine off, shouldnt oil still leak out?

Im not sure about all the aircraft in the game but know most have mechanical oil pumps.....as for oil only coming out when the engine is running would depend on where the engine was hit. If you have a hole in the oil pan/resevoir your losing all your oil running or not. if your hit in the heads then you will only lose oil while the engine is running, if it were an oil line then it would depend on where it is to detemine if it would leak when the engine is off.

[OOZ662]

All of these arguments depend on if you're talking about reality or our game world.