Recent content by camman

From what I've heard, the lower number in the 100/130 octane rating system corresponds to the numbers achieved using the octane rating system that the Germans used and the 87-90 part just is an indication of variance in the quality of B4 gasoline.

Um, we're going to need the accompanying document so we know what numbers to go to. It seems to have disappeared.

I think that pbehn is on to something. Most air battles on the eastern front were fought at low altitudes, hence why the Russians were able to make good use of planes such as the P-39, which was less useful in U.S and British service at higher altitudes. Perhaps they didn't complain of...

Well, according to Wikipedia, the Manfred Weiss WM K.14 was simply a licensed copy of the Gnome-Rhone 14K Mistral Major, so that would be a good place to look if you want more information. There is another thread right here: On big radials This thread has a power curve for the 14Kdrs, which...

I had a teacher who I was demonstrating a leyden jar to, and I accidentally knocked it off the table. He caught it and learned the same lesson.

Well, that settles it for me. Off to edit wikipedia I go!

He's wondering whether the cylinder dimensions are supposed to be in inches or in millimeters. I don't know the answer to his question, but I certainly understand the problem that he's facing.

Well, by scouring the internet, I've gathered that they are 270cc engines (70mm bore, 35mm stroke) that make 10 hp at 10,000 rpm with a centrifugal clutch that engages at 4000 rpm. They then have a 4.8:1 gear reduction between them and the jet engine.

I've looked and looked for pictures of the vk-107 like those ones and been unsuccessful, so it's nice to see how the valvetrain works. I'm now starting to wonder something: How radical must the valve timing have been? jerryw stated that the air valve opened 65 deg. before the fuel-air valve and...

That would explain the evenly spaced exhaust ports and the air ports which seem to be on the very end of the head. Good gosh, that would be one complicated valvetrain.

This may or may not help, but I figured that I might as well contribute it. It's in czech, but that's what translators are for. I know that the information is basic, but there's not a whole lot to be had on the internet.

Whoops, I forgot about that one.

I was at the FHC only about 3 weeks ago and I'm pretty sure it still has the original Argus AS-10 in it. All of the planes at the FHC have their original engines except for a Zero which has had the Sakae replaced with an R-1830. Another place for information could be Kermit Weeks. I know that he...

The AS-410 is actually very different from the AS-10 in several ways: 1. The bore and stroke on the AS-10 are much larger than on the AS-410, which actually makes it have a larger displacement even though it has 4 fewer cylinders. 2. The AS-10 uses an inline valvetrain (the valves are all in a...

Do you mean the Ha-32 instead of the Ha-23? The Kasei 23 is the MK4R Ha-32. The only place that it might be is the Japanese Aircraft Engines thread (sticky thread).