Airframes

OpenRC Swift [Free/Open]

The OpenRC Swift is an Open Hardware 1m 3D printed flying wing. It is designed to be printed on a personal desktop 3D printer. It is a community design released under the terms of the Creative Commons BY-SA 3.0 license. It is suitable for radio control (R/C) and other applications. Its design fuses traditional built-up construction with the use of 3D printing. The 3D printed parts are reinforced with carbon fiber spars and skinned with balsa and shrinkwrap.

This project was made possible with the support of Brook Drumm and Printrbot. The design is best printed on a Printrbot Go Large which has a large 2'x1'x1' build platform; large build plates are ideal for aeromodelling. The Swift can also be printed on smaller build plates; some of the larger parts are broken up into smaller parts.

This project abides by the Open Source Hardware definition (oshwa.org).

Download

-OpenRC_Swift-V1.0_RC1.zip

Design Specifications

-Wingspan: 1m
-Airfoil: MH160
-Mass: 850g
-Planform area: 0.248m^2
-Wing loading: 3.4 kg/m^2
-Power to weight ratio: 194 W/lb
-Thrust angle: 2 degrees
-No washout

Parts list

Fuselage parts


Figure 1: Fuselage parts.

Part # Description
(1) Electronics bay floor
(2) Fuselage right leading edge
(3) Fuselage left leading edge
(4) Right outer fuselage rib
(5) Right mid fuselage rib
(6) Center fuselage rib
(7) Left fuselage mid rib
(8) Left fuselage outer rib
(9) 7mm OD carbon fibre spar, 243mm long
(10) 7mm OD carbon fibre spar, 243mm long
(11) Right fuselage trailing edge
(12) Left fuselage trailing edge
(13) Front fuselage former
(14) Middle fuselage former
(15) Back fuselage former

Motor mount parts


Figure 2: Motor mount parts.

Part # Description
(16) Motor mount left frame
(17) Motor mount bracket
(18) Motor mount top frame
(19) Motor mount back plate
(20) Motor mount right frame

Wing parts


Figure 3: Left and right wing parts.

Part # Description
(21) 7mm OD carbon fibre spar, 243mm long
(22) 7mm OD carbon fibre spar, 510mm long
(23) Left wing trailing edge (1/2)
(24) Left wing trailing edge (2/2)
(25) Left wing elevon mount
(26) Left wing elevon
(27) Left wing rib 9
(28) Left wing rib 8
(29) Left wing rib 7
(30) Left wing rib 6
(31) Left wing rib 5
(32) Left wing rib 4
(33) Left wing rib 3
(34) Left wing rib 2
(35) Left wing rib 1
(36) Left wing winglet
(37) Left wing leading edge (1/2)
(38) Left wing leading edge (2/2)
(39) Right wing Leading edge (1/2)
(40) Right wing Leading edge (1/2)
(41) Right wing winglet
(42) Right wing rib 9
(43) Right wing rib 8
(44) Right wing rib 7
(45) Right wing rib 6
(46) Right wing rib 5
(47) Right wing rib 4
(48) Right wing rib 3
(49) Right wing rib 2
(50) Right wing rib 1
(51) Right wing trailing edge (1/2)
(52) Right wing trailing edge (2/2)
(53) Right wing elevon mount
(54) Right wing elevon
(55) 7mm OD carbon fibre spar, 510mm long
(56) 7mm OD carbon fibre spar, 243mm long

Canopy parts


Figure 4: Canopy parts.

Part # Description
(57) Left canopy rib
(58) Front canopy former
(59) Center canopy rib
(60) back canopy former
(61) right canopy rib
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