32
10
18
1:1
3
3
X3
X1
3
X1
18
The two cogwheels must
engage with each other
at right angles, with the
two rods almost
touching.
Technical facts and curiosities
1877 Unmanned helicopter.
In Milan,
Enrico Forlanini
demonstrated a con-
traption that rose 15 metres into the air and
stayed there for 20 seconds.
1907 Manned helicopter.
French engineer
Paul Cornu
, built a machine with
propellers on independent axles. The helicop-
ter lifted the Frenchman 30 centimetres off the
ground for about 20 seconds.
1925 Dutch inventor
Albert Gillis von Baumhauer
built the first helicopter with a tail rotor and
two independent motors.
1930 Italian engineer
Corradino D’Ascanio
de-
signed and built a helicopter piloted in
Rome by Marinello Nelli, who kept it in the
air for about 10 minutes, travelling 1 km
at a height of 20 metres.
Rear view
Final assembled model
Содержание Science & Play TechnoLogic Mechanics Laboratory 75025
Страница 12: ...12 2 4 3 X1 X1 X2 X4 X4 X8 X4 X2 X2 X1 Assembled motor...
Страница 13: ...13 5 90 6 90 1 1 3 1 1 5 3 5 41 10 X1 X1 X1 X2 X3 X4 X3 X2 X1 X3 X2 X1 X1 X1 X1 3 5 41 10...
Страница 16: ...16 10 11 12 3 3 1 1 3 X4 X7 X2 X1 X1 X2 X4 X8 X8 X2 X3 X2 X2 X2 X4 3 Top of the assembled crane...
Страница 19: ...19 1 1 1 2 3 3 3 X6 X1 X2 3 X2 X1 X4 X2 X4 X4 Assembled base 46 In the gym with a barbell...
Страница 20: ...20 3 4 5 1 1 2 2 3 3 1 1 6 6 1 1 3 X6 X2 X1 2 3 X10 X1 X1 6 X1 X1 X1 Final assembled model...
Страница 28: ...28 3 4 1 1 4 4 18 X6 X1 X2 X1 X2 X2 X2 X1 X1 4 18 Front...
Страница 29: ...29 5 6 1 1 3 3 3 X1 X1 X1 X1 X3 X1 X1 X2 X2 3 X1 X1 X1 X1 X1 X1 X2 Front components...
Страница 31: ...31 9 1 1 4 4 41 X4 X1 X1 X1 X4 X2 X1 4 41 Assembled helicopter rotor and blades...
