Re: [RCSE] All flying vertical stab...
I'm building the new tail for my solar plane and I'm thinking I'll make a Drela style carbon V mount for the vstab. The original carbon V-mount was on the Daedalus HPA, on both the stab and the rudder: http://trc.dfrc.nasa.gov/gallery/photo/Daedalus/Medium/EC88-0059-002.jpg http://trc.dfrc.nasa.gov/gallery/photo/Daedalus/Large/EC88-0059-002.jpg (hi-res) http://trc.dfrc.nasa.gov/gallery/photo/Daedalus/Medium/EC87-0014-8.jpg http://trc.dfrc.nasa.gov/gallery/photo/Daedalus/Large/EC87-0014-8.jpg (hi res) Putting the rudder on a V-mount works fine, except striking the rudder on the ground may cause it to break. I suppose you could have the V-mounted rudder mostly above the boom, which would minimize the torques on the V-mount from a ground strike. But rudder airloads will torque the boom more. Then there's the agony of deciding whether to put the rudder on the right side or the left side of the boom... RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
RE: [RCSE] All flying vertical stab...
Mark Drela sent: http://trc.dfrc.nasa.gov/gallery/photo/Daedalus/Medium/EC87-0014-8.jpg Hey, wait a sec, that thing is just a rib-constructed Supergee with an ugly pod and a big prop. Are you sure this is a photo of a full scale aircraft? :-) I think the guy inside is just a modified Hanz the pilot figure, and the whole thing was photographed just after an aggressive tip launch. Lift, Scobie at Liftworx www.liftworx.com RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
Re: [RCSE] All flying vertical stab...
Putting the rudder on a V-mount works fine, except striking the rudder on the ground may cause it to break. I suppose you could have the V-mounted rudder mostly above the boom, which would minimize the torques on the V-mount from a ground strike. But rudder airloads will torque the boom more. My thought was that the rudder strikes on landing would most likely be from straight ahead. If the rudder was attached with a single bolt then it should pivot around that bolt, and not transmit much load to anything? The Flight loads wanting to rotate the rudder fore and aft in the vertical plane should be almost zero if the mount is in the rudder center??? I realize that the rotating prop puts some diferential airflow into the equation but I wouldn;t think it was that much Am I missing something? Then there's the agony of deciding whether to put the rudder on the right side or the left side of the boom... I'm currently living in The Peoples Republic of California, so it's got to go on the Left side ;-) RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
Re: [RCSE] All flying vertical stab...
Paul Breed wrote: Then there's the agony of deciding whether to put the rudder on the right side or the left side of the boom... I'm currently living in The Peoples Republic of California, so it's got to go on the Left side ;-) Isn't that the place where they elected 'The Terminator' as Gov? Give me a break. michael RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
