I'm looking for some input, critique and suggestions on a design idea -
The plane's target weight with a GoPro Hero 4, a 3S 3,000mAh battery and supporting electronics is under 45oz
Construction will be a 3D printed frame of carbon fiber filled nylon - with two 7.5mm CF tubes through the wings - main sections will be printed in 500mm long sections. Tail surfaces are printed as single pieces.
Wing is a S1210 foil with no dihedral or control surfaces. There are small Hoerner style wing tips. Wingspan is 1.7M with a chord of 255mm - Wing will be covered with film. Projected wing weight based on partial builds is 650g. approx 4.65 sqft
The tail surfaces are NACA 0015 and all fully articulated - so little actual motion needed - maybe too much control but I want to fly s l o w l y . Think of my Bix3 as "fast".
Body tube is CF 30mm tube - servos will be fit in the front of the CF tube.
Nose pod is for all electronics and battery to try and move the CG forward enough - it can be easily moved or extended - it may be allowed to pivot to remain "down" even while the plane is banked or turning.
Motor is currently intended to be a D2836 1100KV (because I have one)
My goal is something very slow that can stay aloft for an extended time but turn well enough to do a figure eight pattern in as little as a football field - the elevator could be elevons but there seems to be some difference of opinion on elevons with a long straight wing (even w/o any dihedral)
I'm trying to build a camera platform that you can almost "take for a walk with you" but my initial goal isn't FPV - just line of sight.
This is an experiment in designing 3D printable parts (in Sketchup) and printing frames, not complete surfaced wings, to keep weight down w/o reverting to balsa.
The high mounted motor is an attempt to borrow a bush plane concept of attaching part of the flow to the top of the wing (even before you start moving).
Thanks!
Mark
The plane's target weight with a GoPro Hero 4, a 3S 3,000mAh battery and supporting electronics is under 45oz
Construction will be a 3D printed frame of carbon fiber filled nylon - with two 7.5mm CF tubes through the wings - main sections will be printed in 500mm long sections. Tail surfaces are printed as single pieces.
Wing is a S1210 foil with no dihedral or control surfaces. There are small Hoerner style wing tips. Wingspan is 1.7M with a chord of 255mm - Wing will be covered with film. Projected wing weight based on partial builds is 650g. approx 4.65 sqft
The tail surfaces are NACA 0015 and all fully articulated - so little actual motion needed - maybe too much control but I want to fly s l o w l y . Think of my Bix3 as "fast".
Body tube is CF 30mm tube - servos will be fit in the front of the CF tube.
Nose pod is for all electronics and battery to try and move the CG forward enough - it can be easily moved or extended - it may be allowed to pivot to remain "down" even while the plane is banked or turning.
Motor is currently intended to be a D2836 1100KV (because I have one)
My goal is something very slow that can stay aloft for an extended time but turn well enough to do a figure eight pattern in as little as a football field - the elevator could be elevons but there seems to be some difference of opinion on elevons with a long straight wing (even w/o any dihedral)
I'm trying to build a camera platform that you can almost "take for a walk with you" but my initial goal isn't FPV - just line of sight.
This is an experiment in designing 3D printable parts (in Sketchup) and printing frames, not complete surfaced wings, to keep weight down w/o reverting to balsa.
The high mounted motor is an attempt to borrow a bush plane concept of attaching part of the flow to the top of the wing (even before you start moving).
Thanks!
Mark