Dynamic Soaring. It is a method of flying that will get a glider going faster than possible even in a dive. There are 2 videos at http://midwestslope.tripod.com/ There is also more info at http://www.charlesriverrc.org/articles/flying/markdrela_ds.htm The low down is to find a ridge where the front and back side are close together like a lake dam. You launch on the front side turn the plane towards the hill and fly over the top and down the down wind side. Once you are below the top of the hill a ways you turn back towards the top of the hill and fly back to over the peak before turning back down wind. While on the back side the flight path will follow the slope of the hill. The purose for doing this is there is an energy/airspeed gain when you pass through the "zone" between the air pasing over the hill and the "calm" air on the back side. This is explained further on the second link. Feel free to ask more questions. Mike
----- Original Message ----- From: Monkey King <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Thursday, November 22, 2001 9:41 AM Subject: Total newbie question (was: Re: [RCSE] DS wing joiners) > On Fri, 16 Nov 2001, Winchdoc wrote: > > > This message is intended ONLY for those poor souls that are > > hopelessly addicted to that evil back side sort of flying known > > as "DS".... > > OK, I'm pretty new to all this, and I've figured out most of the > acronyms: LE and TE for leading and trailing edges, HLG and DLG for Hand- > and Discus- Launched Gliders, CF for Carbon Fiber, and so forth. > > But what's "DS"? > > -J > > > > > The CF joiners for these sailplanes are pretty strong, plenty strong > > for most average flying conditions. They will also break in a really > > hard landing to save other parts of the sailplane. When CF fails, it > > breaks all the way with little perceived warning. You DS junkies know > > what I mean. > > > > I have built a limited number of CNC precision machined tool steel wing > > joiners that have been hardened to 50-52 Rc. I don't plan on making any > > more for quite a while. When these are gone, that's it. I have winches to > > build. > > > > Daryl Perkins and Barry Baskin have custom joiners in some of their > > planes. Ask them if these are any good. > > These steel joiners also add the extra mass you might want when > > DS'ing in extreme conditions. > > I guarantee that something else will break before these joiners fail. > > You may blow a spar, a stab, or just plain explode, but you'll pull the > > intact > > joiner from a smoking crater on the backside of Parker Mountain. > > > > Cobra Calypso $85 > > Wizard Compact $85 > > Scar $85 > > Hades 2 (2 small tip joiners) $85 > > Brisk 2 $100 > > ICON $85 > > Viper $85 > > Ellipse3CAM, Escape, Ellipse4 $65 ADDS 22oz over CF joiner > > > > I can send pix if you are interested > > > > WinchDoc > > > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] > > > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
