Too Long??? Press here goto 9:16; where I tightened up my quarters VTPR sorta
FLEX THEM WINGS!!!
It's an original Marks Models kit built light (2 lbs 2 oz) on a rear CG for slope fun. Maiden flight in '83. Have always loved and kept this one as "special" but have always flown it hard; can't resist seeing the wings flex! It's dainty capabilities are impressive too, it's very light and predictable even to the point of manipulating the stall for differing effects, it also "predictably" flick snaps. Check out the "zooming exits", honestly, I can't explain this ones ability in that function but I certainly use it for exit speed. Seems that rather than having a wing with flaps... the wings flap. Ha
@ 11:54 after the snap roll check the acceleration while the wing is un-flexing: also note acceleration is also during a maintained 2-3 degree exiting climb, also note that "it's a long-drawn-out flap" in releasing the wing loading slowly: run it at 3/4 speed and, 1/2 speed and, 1/4 speed:
Curious over-acceleration whilst the wings are un-flexing that may also include a Brachistocrone type curved-flight-path leading into the un-flexing period having an effect too?
IDK for sure excepting that "I get exit speed" by using that technique: it's not easy to hit: it used to just "happen" from time to time: I eventually "learned" how to do it: no way I could explain how! Time!
My new Windfree (from the newer remake kit) has stiffer/less flexy wings: I can't do it with that one
If I was to offer one "Key" to Rudder-Elevator-Sailplanes in general it's that a slight bit of down elevator with rudder commands super-heightens the Rudders' authority; you don't need to "pitch" it down, just feather in some down elevator as you apply the Rudder ("Key" especially at low air-speeds); you'll exit with same carried-speed and with very little altitude loss; "importantly", you'll have banked in half the time as well as causing less overall drag per bank angle change.
Rudder feels soft or unresponsive? Feather in "a-little" down elevator, It'll bank faster!
Be careful in turning downwind towards the face, I am "breaking the rules" in that manner but in having "ample airspeed" and in maintaining positional advantages to do it with. Learn this in using a huge safety margin! (It "will" Bite!)
In every pilot felt "sense" The Windfree is "Beautiful" and "Pleasurable" to fly
I usually feel like I'm "3D Surfing" in the ridge lifts.
The Windfree is more like a "3D Ice-Skating Sky Dance".
The controls are "Pure and to a Touch" and its Penetration/Speed Carry is "really good" or what most would say "it's got nice legs"!
Hope you enjoyed!
Robert
24 фев 2017
