[RCSE] SWSA Bent Wing BBQ
Hi All-- Summer is beginning to wind down and SWSA hasn't had their annual Bent Wing BBQ yet so here is some info to help you plan an enjoyable day of flying at Fish Canyon, along with some great barbequed food from Canyon City Barbeque in Azusa. This contest is open to all RES sailplanes and rudder/elevator electrics. Yes, electrics can be flown too as long as they don't have flaps or ailerons. They'll fly the same tasks and landings. Rules will be covered at the pilot's meeting. This event will be five rounds consisting of 3, 5, 7, 5 and 3 minutes. Lunch will be served near the end of the 7 minute round and we'll keep the event moving while lunch is served. Registration will open at 9:00 AM with the pilot's meeting at 10:00 AM and the first round to open immediately after the meeting. Entry is $10.00 per pilot, including lunch. Additional lunches may be purchased for $7.00 each. The event notice can be found at http://silent-wings.org/popoff/BentWingBBQ.htm . If you plan to attend please send a note to [EMAIL PROTECTED] so we can get an idea of how much food to order. More info and directions can be found at the SWSA website at www.silent-wings.org . We hope to see you for a fun filled day of flying. Dan 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. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] Legionair 100 Plans
Hey Guys: Anyone have a set of plans for the Legionair 100 that they would like to sell or loan to me to copy? Bernie Coleman Charlotte, NC
[RCSE] Re: Soaring V1 #8123
Dave I am in Cleveland. There are flyers in Erie. The only flyers in your area are power. In Cleveland i fly in Litchfield, which is 60 min west of Cleveland. that would be a long haul. we have 10 club contests for electric gliders. We also fly a lot of slope next to Browns Stadium. We went to electric in order to co exist with power flyers and get more flying in. Putting out a winch is a hassle. If you want to talk further get me off line. Bill Snow
Re: [RCSE] Change email
On Fri, 18 Aug 2006, Kent Miller wrote: I want to change the email address that I have RCSE sent to (in the multi post format). What do I do? Thanks, Kent Miller 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. Email sent from web based email such as Hotmail and AOL are generally NOT in text format I think the easiest way to do this is to simply unsubscribe your old email address and subscribe with your new email address. This is done using the instructions on the bottom of each email. 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. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Supra ? Who couples flaps to ailerons?: Drela repost
All, I saved this post from Dr. Drela from October 2003; it's long but very good. Since he originally posted it to the exchange, I'm presuming a repost is OK. Barry Andersen From Dr. Drela: Deflected ailerons deform the load distribution away from the ideal near-elliptical shape, and hence increase induced drag. Partially slaving the flaps to the ailerons can alleviate this load distribution deformation, and thus mitigate the ailerons' CDi penalty. The question is what's the optimum amount of ail-> flap mixing. The lowest-drag aileron system is wing-warping as used by the Wright Brothers -- the wing is linearly twisted from tip to tip. When such a twisted wing reaches its steady roll rate, the load distribution returns to its optimum level-flight shape, and the drag penalty is zero. With a finite number of hinged control surfaces such a linear twist cannot be achieved. But it can be approximated as close as possible if each surface's deflection is made proportional to its distance from the aircraft's centerline, measured at the surface midpoint. If the four control surfaces have equal span, we then have: surfacemid_span_loc. deflection ---- -- L.aile. -3/4 -100% L.flap-1/4-33% R.flap+1/4+33% R.aile. +3/4 +100% So for this wing the flap motion should be 33% of the aileron motion. Using AVL I've verified that this mixing ratio produces very nearly the smallest induced drag penalty. If the flap span differs from the aileron span, the table above can be adjusted accordingly. Longer flaps will have larger travel and vice versa. BTW, this "distance-proportial deflection rule" strongly argues against stopping the ailerons short of the tip. The resulting unhinged tip portion should in fact have the largest deflection. The "distance-proportial deflection rule" can be fudged if there is a tip stall problem in a sustained turn, where some opposite aileron must is held. By increasing flap travel over its "optimum" amount, the flaps can carry a greater share of the roll power, which reduces the required downward deflection of the inside aileron, and thus delays tip stall. So if your TD glider has insufficient tip stall margin, I suggest increasing the flap mixing and you should see some improvement. The extreme case would be 100% flap mixing, which mimics full-span flaperons. Flaperons give excellent tip stall resistance, as is obvious to anyone who flies a DLG with a good 2-servo wing. A 4-servo TD wing with decent planform should not need to go to this extreme, especially if it has some washout like the Aegea wing. On Aug 18, 2006, at 11:43 PM, Stan Myers wrote: If so, how much? If not, when/why? Thanks Stan RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to soaring- [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format 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. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
RE: [RCSE] 2M Rambles
Walter, I seem to remember, a few years back, I got one of those “pesky” Level V wins using a 2 Meter Fazer. With 2 Meter planes, it’s a love/hate relationship… J Steve Siebenaler From: Marta Zavala [mailto:[EMAIL PROTECTED] Sent: Sunday, August 13, 2006 1:10 AM To: [EMAIL PROTECTED] Cc: soaring@airage.com Subject: Re: [RCSE] 2M Rambles Two meters would likely be competitive with 3M ships? Just ask Bobby McGowan if two meter ships are competitive right now with 3M ships. I think the answer would be yes and I think DP would even have to say Bobbys two meter is reasonably competitive with 3meter, even larger than 3 meter ships. Walter
Re: [RCSE] Supra ? Who couples flaps to ailerons?
I run coupled flaps at 60% and rudder at 75% for flight and all uncoupled for landing. -- KenYork County Soaring"Lighthorse" Team YCSSilence is Golden On 8/18/06, Stan Myers <[EMAIL PROTECTED]> wrote: If so, how much? If not, when/why?ThanksStanRCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to soaring-request@airage.com. Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Supra ? Who couples flaps to ailerons?
Stan, I thought that everyone was using coupled A-F now a days. Dr. Drela has made it pretty clear that it lowers drag and you have a lot more authority on less total throw, whether it is a Supra or not. Marc 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. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
