USA (4)

Hoppi-Copters: Hoppi-Copter 100

(HX-1) [346/135]

1
20
HP
1945

Hoppi-Copters: Hoppi-Copter 101

[347/135]

1

Hoppi-Copters: Hoppi-Copter 103

[349/135]

Hoppi-Copters: Hoppi-Copter 102

[348/135]

165
kg
154
km/h
3658
m
1
32
HP
1
0.0931