Jul 15
Practicing painting and muscles with these two
seen from Yemen
seen from Russia
seen from United States
seen from Italy
seen from United States
seen from Oman
seen from Netherlands
seen from Russia
seen from Australia
seen from Spain
seen from Italy
seen from China
seen from Türkiye
seen from United States
seen from Russia
seen from United States
seen from Türkiye
seen from Türkiye
seen from United States
seen from United States
Practicing painting and muscles with these two
A Helicopter delicately picks its way among new hydro transmission towers at Yonge St. and Highway 7 in Richmond Hill. The whirlybird is used to string the electrical conductor wire between the towers after they have been erected. 1981 [TPL Archives]
Sikorsky Skycrane, 1975
High Arctic Exploration Helicopter, 1974
The first human-powered helicopter to fulfil all the criteria to win the AHS Sikorsky Prize (worth $250.000).. and yes, that's pretty impressive. In short, to win the prize the machine had to fly for 60 secs., reach a minimum altitude of 3 meters (9.8ft) and manage to stay within a square area of 10-by-10 meters (32.8 by 32.8ft).