just kidding....

no its not a shop... its a subie powered plane which i think must mean its experimental

5/20/2006 11:41:56 AM

That's pretty cool

[Edited on May 20, 2006 at 1:14 PM. Reason : I think RV's are experimental anyway, but yeah that powerplant would make it that way.]

5/20/2006 1:13:37 PM

That is really cool.

5/20/2006 1:18:28 PM

Wow, a turbo charged, flat 4/6 as an airplane engine? Nice.

P.S. I'm clueless when it comes to airplanes, but are there any turbo charge airplane engines?

[Edited on May 20, 2006 at 1:29 PM. Reason : engine size?]

5/20/2006 1:27:59 PM

^Quite a few turbo airplanes.

However, most turbo setups on planes are for normalization, or sea-level performance at high altitude. The turbo is usually totally wastegated at sea level, but produces boost at altitude.

There have been, however, turbo and supercharged setups on planes for more power. The Allison V1710 engine found in such planes as the P38, P39, P40, and some of the P51's (most were Merlin) had to be supercharged to really live up to its potential due to its rather low compression ratio (large open pentroof combustion chambers).

An interesting setup was the 18 cylinder Wright turbocompound engines found on the Lockheed Constellation...they actually had three turbines in the exhaust to reclaim lost power. They were geared to the crankshaft.

5/20/2006 1:36:22 PM

^^yeah, see ^

Suburu engines aren't too uncommon on experimental aircraft.

what is that plane anyway? RV-3?

5/20/2006 7:34:00 PM

neat. How many planes use 4 cyclinder engines? just wondering. Wasn't there a guy that made a plane using a mazda rotory engine?

5/20/2006 7:48:16 PM

yeah, the mazda 13b is used from time to time as well.

and tons of airplanes have 4cyl engines...i'd say the overwhelming majority of light civil aircraft are 4cyl (although typically air cooled)

[Edited on May 20, 2006 at 8:42 PM. Reason : asdf]

5/20/2006 8:42:26 PM

Pretty funny, though. Most of those 4-bangers in aircraft are huge.

200 cubic inches in Cessna 150/152's. 320 in most others.

5/20/2006 11:51:56 PM

Wankel >> boxer

5/21/2006 12:07:20 AM

^^and the O-360. i'd say there are at least as many 360s as 320s.

[Edited on May 21, 2006 at 12:58 AM. Reason : asdf]

5/21/2006 12:58:29 AM

The subi 2.5L is used in damn near every Autogyro in the world now. They are pretty much perfect small aircraft engines, having taken over the helm from the Volkswagen powerplants used for decades.

5/21/2006 1:06:55 AM

Quote :

"Wankel >> boxer"

cept boxers don't blow apex seals all the time.
and are more efficient.
and can rev just as high

wait... the only advantage of a wankel is weight.
and if you made a 2 stroke boxer it would make a ton of power at 1/2 the size too.

5/24/2006 4:57:23 PM