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The Alef design utilizes hub motors for land travel, while for flight it incorporates eight motor-controller-propeller systems providing distributed electric propulsion, covered by a continuous mesh upper surface to allow airflow during vertical flight. [6] The Model A employs an unusual transition between vertical and forward flight modes.
This type of mesh is a square grid of uniformly placed wires, welded at all intersections, and meeting the requirements of ASTM A185 and A497 or other standards. [1] The sizes are specified by combining the spacing, in inches or mm, and the wire cross section area in hundredths of square inches or mm2.
Beasley-Eastman flying boat photo from Aero Digest April 1928 The E-2 was designed by former Ford engineer Thomas Towle for industrialist Jim Eastman of Eastman Laboratories . Towle was in the process of starting his own company, the Towle Marine Aircraft Engineering to produce his twin-engine amphibian design, the Towle WC .
Data from L-39 Next Generation web page General characteristics Crew: 2 Length: 11.83 m (38 ft 10 in) Wingspan: 9.37 m (30 ft 9 in) Airfoil: NACA 64A012 Empty weight: 3,100 kg (6,834 lb) Max takeoff weight: 5,800 kg (12,787 lb) Rear view of a L-39 Skyfox and its Williams FJ44 engine Powerplant: 1 × Williams International FJ44-4M turbofan engine, 16.89 kN (3,800 lbf) thrust Performance Maximum ...
Photos can be of aircraft exteriors, interiors, and aircraft details. The photographer has full control over lighting, aircraft placement, camera angles, and background. Involving other subjects such as the pilot or other aircraft is much easier to accomplish in ground-static photography than in other forms of aerial photography.
Originally ran from the A39 and A393 to the A394 northwest of Penryn. May have been renumbered as a spur of the A394 in 1935 (shown as such on a 1957 OS map) but is now part of a rerouted A39, forming a portion of the Penryn bypass. A3047 Scorrier: Camborne: Originally ran along Clinton Road in Redruth, paralleling the original A393 (now B3300).
The Kaman HH-43 Huskie is a helicopter developed and produced by the American rotorcraft manufacturer Kaman Aircraft. [2] It is perhaps most distinctive for its use of twin intermeshing rotors, having been largely designed by the German aeronautical engineer Anton Flettner.
Following the end of World War II, Dr. Sighard F. Hoerner was a pioneer researcher in the field, having written a technical paper published in 1952 [7] that called for drooped wingtips whose pointed rear tips focused the resulting wingtip vortex away from the upper wing surface. Drooped wingtips are often called "Hoerner tips" in his honor.