Germany did not lose the Battle of Britain

[Blackdog_kt]

Ah, i see...you were arguing the reason behind it while i read it as "fuel savings is a direct consequence of oil dilution"...in any case it makes sense now, cheers

[Crumpp]

Well, my point regarding fuel was that the oil/fuel mixing stuff on the western front started as a fuel saving measure. Which two of you didn't believe until(hopefully) I posted a direct quote,

I had no contention on the fuel savings. I was pointing out that using a fuel oil mix to start the engine once was an improvement over the reduction in service life from continuous starts and ground runs.

You said it was bad for the engine, I pointed out the system became standard because it is better for the engine than the repeated ground runs.

[kimosabi]

So is this still practiced today? I guess not. How about that. Did you read anything about what I wrote about gasoline and solvent capabilities? How it works with engine oil? Tell you what, put a few drops of oil in your hand, get some on your thumb and index fingers and rub them together, then add a few drops of gasoline on and mix it together with the oil in your hand and repeat. Notice if you have more or less friction in the mixed oil compared to pure oil. That's what your bearings will experience. First few seconds of a cold start is the harshest time of your engine's running life. When it's warm started you still have enough oil in your bearings from the last start, plus the oil is thin enough to transport immediately. Cold oil/drained bearings takes a second or two for oil pressure to build up. You do lower the viscosity but in the same time you sacrifice lube quality. It's more about getting the oil to where you want it, not better lubrication. So yeah, in my world it is a compromise.

Edit* Crap, I was done with this topic yo, see what you didded.

[Crumpp]

So is this still practiced today? I guess not. How about that.

If anyone had the need to keep a piston engine aircraft warmed up at all times to launch an intercept mission without access to prime power....


It certainly would still be in practice!

[kimosabi]

I srsly doubt that with todays oil/starter/battery/engine quality. Those lumps back then were heavy and crude enough just to crank empty. lol I want one.

[MaxGunz]

Rolls Royce Merlin engines .... crude?

[kimosabi]

Considering that you today can squeeze out that hp/torque safely from a piston engine half its size, I'd say so.