The pictures below show the friction motor Thunderbird 1 in detail - just about
1: Top view.
2: Underside view.
3: Right hand side view.
4:Left hand side view.
There are no markings on this toy that identify it as being a JR 21 toy.
The plastic nose cone pulls off.
The base is glued to the main fuselage.
The fins are quite fragile - any amount of play & they will break off.