A hard plastic firewall to fit 31 mm outside diameter F5J electric glider fuselages. This is usually also the spinner diameter. Motor/gearbox mounting holes have been pre-drilled for the Reisenauer Micro-Edition gearbox with 3 holes on a 14 mm circle. This is also suitable for some Maxon 4.4:1 gearboxes.
Note the 30 mm dimension on these firewalls is the fuselage front inside
diameter i.e. the outside size less 2*fuse wall thickness
|Reisenauer 31 mm Plastic Firewall Specifications|
|Fuselage outside/spinner diameter
|Fuselage inside diameter
||3 holes on a 14 mm circle