Head_Bipe

Planes

B-25 Mitchell
1/48 Scale
8 Channels
P-51 Mustang
1/48 Scale
6 Channels
Shark
2.65", 0.495 gram
Mono-plane
Martin's Midge
3.2", 0.98 gram
Mono-plane
Mosquito
4", 1.3 gram
Mono-plane

September 2004

Martin's Mono is the first pager-powered plane I made - inspired by the much, much bigger Butterfly. It has 8" wingspan. This represented a number of firsts for me - my own design, working with carbon rod, making carbon propellors, and making actuators. I was aiming for 1/2oz, about 14 grams, and was pleasantly surprised when it came out to less than 10 grams.

The first model had solid balsa tail feathers and a 10 ohm, 6 mm motor. Wouldn't quite fly. I convinced myself that the carbon rod tail would be lighter, but the real trick was in converting to the 4.5 ohm motor. I did have to increase the dihedral a little for stability in turns, especially right turns. Now it flies well, and I have clocked probably a couple of hours on it. The first motor died after a few flights, but the current one is still going strong.

Mono Pictures

Martin's Mono

Mono in Flight

Mono in Flight 2

Mono Videos

Martin's Mono

Three Planes Together

Mono Specifications
Wingspan 7.75" (19.7 cm) [8" flat]
Chord 3.0" (7.6 cm)
Wing Area 21.75 sq.in (140 sq.cm)
Weight 0.33 oz (9.3 grams)
Wing Loading 2.18 oz/sq.ft (6.64 g/sq.dm)
Motor MK06-4.5, 6mm, 4.5 ohms
Gears 6.5:1 Falcon MOD 0.25
Propellor 3.1" (80mm) Homemade carbon, based on modified U80
Battery 80mAH LiPoly
Radio RFFS-100
Antenna 1 piece 38 awg copper, 6cm + 28 turns around 5mm straw + 18cm
Actuators Homemade coil 4mm ID, 44awg, 50 ohms, 3mm x 1mm N45 Neodymium magnet
Construction Carbon Rod, mainly 0.020" (0.5 mm) and foodwrap covering (Reynolds Wrap)
Control Rudder, Throttle

Mono Plans
Plans in PDF format
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