Dream-Flight r2106gf Flight Manual Download Page 3

Designer's Notes - "Evolution of the Weasel" 

"It was back in the mid-1990s that I was approached by 
a local Santa Barbara RC glider pilot, who asked if I 
might cut him some one-off foam wing cores based on a 
flying wing design called the "Little Devil", by British aero 
modeler Duncan Simey. I was presented with the 1994 
issue of 

Silent Flight

, which included the build article for 

this particular model. The tapered, ultra-wide chord of the 
Little Devil design immediately caught my eye - it looked 
fun! I was in High School at the time on summer break with 
plenty of time to spare, so I decided to give it go. 

The original build article called for a plywood-sheeted 
wing, which seemed quite heavy for our light coastal 
breezes. To reduce weight, I used a packing tape-
covered foam wing with balsa sheet control surfaces for 
simplicity. The foam material was scrounged from a 
damaged hot tub cover (I still recall the strong smell of 
chlorine-saturated foam!). 

The foam and tape prototype was an immediate success! It 
flew like nothing else on the slope and outperformed most 
chevron-style combat wings that were popular at the time. 
It was nimble, had an extremely wide speed range, could 
slow down to a kite-like hover in very light wind, and the 
stout, yet lightweight shape allowed it to take the tumbles. 
All these attributes allowed me to take more chances, and 
soon I found myself creating a new style of in-your-face 
slope soaring. When everybody else was into slope 
combat at the time destroying servos and airframes left 
and right, I was enjoying this creative freestyle form of 
RC soaring; pylon turns around shrubs and small trees, 
touch and goes off park benches, quick rolls three feet off 
the deck, grass skimming, hand catches instead of the 
traditional landing; all became part of the new routine, 
and my piloting and reflexes improved quickly as a 
result. 

After flying the foam and tape prototype for a couple 
months, I came to find that the aircraft had character, 
more so than any other airplane I had flow in the past. It 
was slow yet fast, extremely quick in the turns, could 

The Weasel's inspiration - a page from Duncan Simey's original 
"Little Devil" build article in Silent Flight's 1994 June/July issue. 

Michael Richter testing an early prototype close-in at Las Positas 
Park (now Elings Park) in Summer of 1996. The design evolved 
over the years and went through 7-10 iterations before eventually 
becoming the current Weasel-TREK now available in 2016. 

Summary of Contents for r2106gf

Page 1: ......

Page 2: ...to first launch slope glider Whether you fly small beachside dunes coastal bluffs or alpine ridges this funky little glider is ready to carve wind The Weasel TREK merges modern aerodynamic and functio...

Page 3: ...as nimble had an extremely wide speed range could slow down to a kite like hover in very light wind and the stout yet lightweight shape allowed it to take the tumbles All these attributes allowed me t...

Page 4: ...of the business So that is how the Weasel came to be Thank you Chuck and Duncan for the initial inspiration that still continues today The dorky looking glider that I first flew 20 years ago has sinc...

Page 5: ......

Page 6: ...ays give larger heavier flying models the right of way Treat flying sites with the utmost of respect and care as future access to them is by no means guaranteed The Weasel TREK must be assembled balan...

Page 7: ...4 Ballast Option 15 Pre Flight Check 16 Test Flights Trimming for Straight and Level Flight 17 Fine Tuning the Weasel TREK for Optimum Flight Performance 19 Slope Soaring Background and Technique To f...

Page 8: ...ight and Assembly Manual 4 Vertical Tail Fin 5 Small Hardware Bag Contents 2 Elevon pushrods 2 Clevises with screws 2 Wing clamp screws Velcro for battery and receiver installation Not shown Logo shee...

Page 9: ...Parts DFFA050 DFFA056 Packing tape and strapping tape for wing leading edge reinforcement and airframe repair Acrylic paints we like Tamiya TS series spray paints or Liquitex Professional spray paints...

Page 10: ...charged Part DFFA012 1 Locate servo arms with four holes on each arm Place small servo screws in a safe place 2 Plug Battery Extension Wire into receiver observe proper polarity This extension wire re...

Page 11: ...er If you cannot achieve the correct rotations using servo reversing alone you may need to swap the servo plugs at the receiver and return to Step 7 above 9 If necessary adjust sub trims to ensure ser...

Page 12: ...amage to the canopy when removing it repeatedly make a simple pull tab from a strip of 3M Blenderm tape or similar Simply cut a 4cm long strip of tape and fold one end over on itself to create a non s...

Page 13: ...ry 5 For now mount battery in the most forward position 6 Twist the servo wires together for a neater installation and then plug both elevon servo plugs into the proper receiver channel ports as deter...

Page 14: ...mes to loosen hinge action 2 If hinges remain rather stiff after flexing you can enhance control response and reduce servo load by making 25mm long incisions along foam hinges using a sharp hobby knif...

Page 15: ...ut not excessively tighten the wing clamp screw in each panel The wing clamp screws may be loosened at any point to remove wing panels for travel and storage 5 IMPORTANT For added security wrap a stri...

Page 16: ...larger flat head screwdriver 7 Insert wire U Bend side of each pushrod into outermost hole of servo arm as shown below 8 While deflecting elevon towards top wing surface as shown below slide pushrod i...

Page 17: ...to align and slide in place Apply 2 3 strips of Blenderm tape along joint for a secure hold HOT TIP Basic assembly is now complete Use our easy to apply Stick on Trim Sheets Parts DFFA050 56 to add so...

Page 18: ...he airframe with any paint tape film etc Gather items below Fully assembled and decorated Weasel TREK Small balance weights not always necessary You may only need several small washers or coins to get...

Page 19: ...battery forward if possible or add a small amount of balance weight to the provided recesses alongside battery you may only need a small coin or two The Weasel TREK s short length makes balancing a bi...

Page 20: ...to the tail just behind elevon control surface for setting deflections Mark desired deflections on tape and adjust transmitter Dual Rates until proper deflections are achieved Provides the approximate...

Page 21: ...of our Steel Balance Weight Part DFAA002 As shown stick 10 pieces of 5g steel weight together to create a 50g ballast slug Wrap the ballast slug with enough painter s tape to create a snug fit and cr...

Page 22: ...aphic below to verify proper control surface movements Hold glider with nose facing away from you and verify that control stick inputs result in correct control surface movements 5 Check for any bindi...

Page 23: ...er rearward into launching hole 4 As shown use simple overhand javelin style launches until you achieve proper trim 5 ALWAYS launch and land your glider into wind to minimize ground speed Throw the We...

Page 24: ...a well balanced and trimmed aircraft will fly hands off in a straight and level glide for a good while If instead your glider noses up or down as speed increases this is a sign that your CG position i...

Page 25: ...ift an Weasel TREK with proper CG and elevator rates should be able to do a nice reasonably tight loop after building airspeed in a dive If the plane has too much elevator throw when attempting a loop...

Page 26: ...aring as surfing an invisible wave of upward moving wind RC slope soaring is quiet clean challenging and fun The glider sustains flight by riding the updraft created when wind is deflected upward by a...

Page 27: ...SLOPE SOARING FUNDAMENTALS Views from side and above 20...

Page 28: ...PO Box 1448 Goleta CA 93116 USA www dream flight com E mail info dream flight com Thank you for your support of our products Our goal is to create unique aircraft that are pure fun to fly Beginners th...

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