A 1m span plank wing which I named Joker :)
Dimensions and details :-
Span = 1000 mm
Root Cord = 265 mm
Tip cord = 175 mm
Sweep = -25 mm (slight forward sweep)
Wing area = 220000 mm^ or 22 dm^
Airfoil = Phoenix mod (85% thickness)
Elevon = 25 mm cord Full span elevons
Vertical tail = 136 sq cm
Electronics
Motor = 2206 200KV
Prop = 7x4
Bty = 2S 1000 mah
CG - 30 mm from the LE at root cord / 55 mm from LE at the wing tips...
AUW = 310g, Wing area = 220000 sq mm, Wing Loading - 4.65 oz/sq ft, Wing cubic loading - 3
The wing is hotwired from EPS (Thermocole). It has a built-up 10mm CF tow spar and skinned with 32 gsm fiberglass at 45 degree bias. the wing tips are EPP . The fuselage is only in the front portion to house the ESC, RX, Motor and battery.. The vertical tail is stuck on a 3 mm CF rod and glued to the wing TE... I had put the silver strip on one wing thinking it will help in visibility.. it does not help much.
Need to be very careful to get the correct CG, even a couple of mm difference changes the characteristics drastically. I have put 40% expo in elevator.. Once trimmed she thermals well without much inputs without much inputs.. and turns are very tight without loosing height
Here is a a flight video https://www.youtube.com/watch?v=s7lBZY6r_bI
are you selling ?
No.. not yet 🙂
Beautiful model.
Where you find 32 GSM fiberglass ?
From banggood.. during good old times.
Last Saturday had beautiful thermal flight..a 22.6 mins total flight time with 1.2 th% (Opentx throttle percentage)..
here is another video .. thermal soaring https://youtu.be/AkRjh4RjzFU
Lovely :thumbsup: