3D Printer Models

Capra R20 – RC Racer / Glider 3D Printer Model

Author: @LaurentL

License: CC BY-NC

File formats: stl

Download type: zip

Size:15.5MB

The file 'Capra R20 – RC Racer / Glider 3D Printer Model' is (stl) file type, size is 15.5MB.

Description Files (23)

Summary

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)

Aile1_TP60J_v0.12.stl	8.1MB
Aile1_v0.1.stl	3.4MB
Aile2_TP60J_v0.12.stl	17.4MB
Aile2_v0.1.stl	6.6MB
CapraR20_preview.stl	10.5MB
ConeGlider_v0.12.stl	3.7MB
EchappementCapraR20.stl	9.3MB
Entretoise_CleAile_v0.12.stl	129.3KB
Part1Glider_v0.1.stl	8.4MB
Part1Glider_v0.12.stl	8.5MB
Part1MotorHoles_v0.1.stl	2.8MB
Part1MotorHoles_v0.12.stl	2.9MB
Part1Motor_v0.1.stl	2.5MB
Part1Motor_v0.12.stl	2.5MB
Part2_v0.1.stl	4.4MB
Part2_v0.12.stl	5.7MB
Part3_v0.1.stl	3.5MB
Part3_v0.12.stl	3.5MB
Part4_v0.1.stl	2.2MB
Stab_composite_PLA_v0.1.stl	619.9KB
Stab_Gabarit_v0.1.stl	429.9KB
Tool_PushrodCapraR20.stl	193.5KB
Trappe_v0.1.stl	1.4MB

Tags

openscad airplane aircraft RC plane RC airplane glider RC aircraft racer Capra r20

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