A hard plastic firewall to fit 30.7 mm outside diameter F5J electric glider fuselage. This is usually also the spinner diameter. Motor/gearbox mounting holes have not been pre-drilled so it can be used wih any front mounting motor.
Note the 29.2 mm dimension on these firewalls is the fuselage front inside
diameter i.e. the outside size less 2*fuse wall thickness
|Univeral Plastic Firewall Specifications|
|Fuselage outside diameter
|Fuselage inside diameter
|Max gearbox/motor diameter
|Central hole diameter
Marked "Explorer 30"