Berliner Helicopter

#	Item
1	A National Historic Engineering Landmark Add to Reading List Source URL: www.sections.asme.org Language: English - Date: 2012-12-18 23:19:48 Vought-Sikorsky VS-300 Helicopter Igor Sikorsky Coaxial rotors Sikorsky R-4 Tail rotor Autogyro Sikorsky X2 Berliner Helicopter Aircraft Rotorcraft Aviation
2	PDF Document Add to Reading List Source URL: www.iasa.com.au Language: English - Date: 2007-04-15 05:19:20 Helicopter Yakovlev Yak-24 VTOL Paul Cornu Aircraft engine Berliner Helicopter Sikorsky S-72 Aircraft Rotorcraft Aviation