Here is a previous post of mine if it helps, I like spoilers for dethermalizing and glide path control, less ballooning and you have normal aileron deflection till touch down. very important with high aspect ratio ships with slow roll rates. I would be leary of full crow on such a thin non carbon wing. Flaps and spoilers do different things. Thats why there are both. Flaps increase lift at small deflections and are used to slow down the plane for thermal turns. They also are used (with larger deflections) to aid landing sometimes, especially on short field landings. spoilers are used to dump altitude (de-thermalize), and as glide path control as in full scale soaring. Full scale sailplanes don't use "crow" not to sat you can't do it on a model if you like. On an ASW-27 flaps are also coupled to the ailerons 3:1 all the time for better turning. John Derstine E-mail; [EMAIL PROTECTED] Scale Soaring: http://www.Geocities.com/scalesoar -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Tuesday, March 06, 2001 7:41 PM To: [EMAIL PROTECTED] Subject: [RCSE] Alpina 4001, are the airbrakes worth the effort? I'm shortly to commence building (Assembling?) a Multiplex Alpina 4001, my first 4m ship. I have the uncovered version which has an option for double-blade airbrakes. The aircraft also has crow brkaing avalible via flap/aileron of course. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
