#Capra R20 - RC Racer / Glider
###This was a french racer planned for the Deutsch de la Meurthe Cup Race - 1939. Never finished or flown due to the war and also motor issues (Flat 12 cyl - Béarn).
###Little information about this racer but this blog from Jacques Moulin relates his short story.
##Data
- Wing span 830mm
- Lenght ~600mm
- FAD18 airfoil from Franck Aguerre (designed for 60" gliders and F3F pitcheron like the Hypnosys2)
- Pitcheron setup
- CG 41mm, rear limit 43mm on main carbon rod.
- Whole plane is designed/predicted using PredimRC
Requires :
- Two servos : Hyperion DS09, Corona DS843MG or Graupner DES 427 BB
- Lipo 3S-600mAh / 3S-850mAh
- Motor 1806-2300Kv + 20A controller + 5x4prop or similar setup
- Tiny 4ch receiver
- Main carbon rod diam. 6mm - 240mm long
- 2mm balsa for elevator
- Small parts (pvc tube 2/1mm, steel rod diam 2mm, magnets diam. 4mm, two ball joint...)
##Print
- Around 200g of PLA+ (used recycled Zakata 3D850 for wings)
- Printer height max 200mm.
- No support required, just some brim.
- Fuselage : Layer thickness 0.2mm - One 0.4mm wall (Will be lowered to 0.36mm for part3/part4)
- Wing : Layer 0.2mm and line width 0.35mm.
##Weight
- Wing : ~51g each wing
- Fuselage parts : ~85g
- RTF weight : around 375g with 3S -850mAh
##RC settings
- Delta mixer
- Elevator function: +/-8mm (measured at trailing edge / wing root)
- Aileron function: +/-5mm
- 4mm holes for magnets set the wing neutral position
##Updates
- 23/04/2020 : Initial upload (v0.1)
- 11/07/2020 : v0.12 - fuselage Part2 reinforcement (flat 3mm carbon) - spacer - removable noose for glider (put lead inside)
- 15/07/2020 : Added alternative wing with TP60J airfoil (better for aerobatics / inverted flight)
LaurentL
