On Thu, 28 Feb 2002 13:33:52 -0500, David Megginson <[EMAIL PROTECTED]> wrote in message <[EMAIL PROTECTED]>:
> Tony Peden writes: > > > All of my experience is with jets, what exactly are cowl flaps? > > They're flaps around the front of the nacelle -- when you open them, ...typically behind the engine itself... > they produce extra drag (less than gear or flaps) and route more air > over the engine for cooling; when you close them, you cut the drag but > cut the cooling as well. Usually they're open for take off and > landing and closed for cruise (since there's lots of air anyway). > Some DC-3 pilots actually calculate the extra drag into their > approaches. ..these cooling controls were also used in liquid cooled planes like the P38, P51, Me109, Spitfire, etc. ..some both air and liquid cooled planes use(d) shutters in front of the nacelle immediately behind the prop, FW190, and todays SU26 and the "Round-Russian-Radial-engined" Pitts (T2?) acrobats. -- ..med vennlig hilsen = with Kind Regards from Arnt... ;-) Scenarios always come in sets of three: best case, worst case, and just in case. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
