Fiddlers Green

Downloadable Fun!
It is currently Sat Jun 06, 2020 1:47 pm

All times are UTC - 7 hours

Post new topic Reply to topic  [ 17 posts ]  Go to page Previous  1, 2
Author Message
 Post subject:
PostPosted: Sat Apr 17, 2010 12:37 pm 
Paper Model Overlord
User avatar

Joined: Fri Oct 06, 2006 1:15 pm
Posts: 528
Location: Alameda CA
The principal (and largest) openings in the front of an air-cooled engine's cowling are cooling air inlets. Smaller openings would be carburetor and oil-cooler inlets. Liquid cooled engines radiator inlets are almost always on a blister of some kind to accommodate the radiator (e.g. the P-51's "blister" below the wing, the P-40's "blister" behind the spinner, the P-38's blisters on the booms aft of the wing, the Spitfire's "blisters" beneath the wing, etc.). Some radiators for raceplanes were fashioned as flush surfaces of the wing or fuselage (e.g. the Supermarine racers), but were not common, probably due to the expense.

Air cooling an airplane engine is not a matter of getting fresh air in, it's getting the bad (heated) air out. The cooling air inlets don't have to be very large, but the exits have to be generous and efficient. Hence all those louvers on the sides of inline engine cowlings, and large cowl flaps in the trailing edges of radial engine cowlings. Engine cylinders are wrapped in close fitting sheet metal baffling that compress and route the air over the heads, and there's often an airtight barrier separating the ram air region of the engine from the waste region, which via cowl shape and flaps is at a partial vacuum, to increase the draft by differential pressure.

PostPosted: Thu Jan 26, 2012 12:25 am 
FG 26# stock

Joined: Wed Aug 24, 2011 8:27 am
Posts: 21
Some of these intakes were for superchargers, some just air intakes to the carburators.

It is almost always rude to land in shopping malls.

The organic bits seem to cause a large number of errors. See above.

Technology is no substitute for Valor.
"Whatever happens, we have got
The Maxim Gun
and they have not."

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 17 posts ]  Go to page Previous  1, 2

All times are UTC - 7 hours

Who is online

Users browsing this forum: No registered users and 4 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group