![simpleplanes glider simpleplanes glider](https://jundroo.blob.core.windows.net/simpleplanes/GameData/aircraft/912/a5PZ07-UserView-0.png)
![simpleplanes glider simpleplanes glider](https://jundroo.blob.core.windows.net/simpleplanes/GameData/aircraft/620/QxnqT6-UserView-0.png)
It almost seems safer to land like a normal airplane and let the rotors be damned. I don't even want to think about the delta wing pitching moment at the high AOA prescribed for autorotation landing without power. The autorotation landing on power out is probably a death sentence. I've got about a 50% landing success rate - and that counts the times that I got rotor strikes from pitching forward too quickly. Landing as described works, but the pilot would be very busy, as they'd have to handle collective, cyclic, conventional controls, and the rotor shaft angle simultaneously. A near-VTOL jump takeoff with the rotor shaft at about 20 degrees from horizontal is much easier to accomplish. I even figured out differential torque yaw and elevons, which honestly took more time than throwing the weirdly-shaped body together.įrom flying this derpy bird around for a few hours, I find:ĭobson's described takeoff procedure works but (for this game system at least) shows a tendency for the ship to flop on its back and explode. The engine power is too high, fuel runs out in about 3 minutes, the wing is a bit too big, and the Cg is a little too far back, but it's got all main features. I used the design shown in the video, rather than in the patent application wing shape and size was roughly eyeballed but works okay.
![simpleplanes glider simpleplanes glider](https://jundroo.blob.core.windows.net/simpleplanes/GameData/aircraft/462/5Cm0eY-UserView-0.png)
SIMPLEPLANES GLIDER FULL
My insanity has come full circle: SimplePlanes POC of Dobson Convertiplane prototype. airspeed of about 2o m.p.h.īiggest problem faced by Dobson and his associates, including James Vernon, SC professor of aeronautical engineering, is maintaining control during the interval when the rotor swings from vertical to horizontal and until sufficient speed is obtained for level flight. On landing, the reverse procedure is used, with the rotors swinging back over the craft for a helicopter descent at a max. When the desired altitude is reached, rotor and blades swing forward into standard flight position and increase the ship's speed until its weight can be borne by lift over the wings. The craft would pivot on its skids until the center of gravity is beneath the rotor, at which point it will climb vertically like a helicopter. The nose would rise first, with the aft end of the convertiplane balancing on skids as the two swiveling front wheels clear the ground. Whittier, California is where the N98P was registered.įinal update: I suspect, with about 51% confidence, that the later film footage was shot at or near Long Beach Airport / Daugherty Field, due to one clue: the tall tower that shows up in one of the later shots may be the control tower the other two nearby airfields (El Monte and Fullerton Municipal) both have lower control towers.Īt take-off, the shaft would be in a vertical position, with the blades turning horizontally above the ship. Mail: 8205 Calmosa Ave., Whittier, Calif. Another issue of Aeronautical Engineering Review lists the following information:ĭOBSON, Franklin A. Perry Dobson and husband to Mona Frances Dobson. Dobson" who designed this was Franklin Alver Dobson, son of Rev.
![simpleplanes glider simpleplanes glider](https://jundroo.blob.core.windows.net/simpleplanes/GameData/aircraft/411/Q374oG-UserView-1.png)
Dobson was an Associate Fellow of the IAS (Institute of Aeronautical Sciences) as well.įETA: Apparently the glider transport that this guy designed was the Waco CG-4 Glider, the most widely-used American cargo glider in WWII. Periscope has another clip of (presumably) Franklin Dobson demonstrating a one-man hovercraft with some elegantly simple controls, hereĮTA: Looks like Franklin A. He also apparently designed a cargo glider that made a trans-Atlantic crossing (!?), so seems like a pretty interesting fellow. Not sure if it's the same Franklin Dobson, but I found a newspaper clipping, via Google, that mentioned a Canadian Franklin Dobson who was kicked out of a German glider club in '33 when Hitler expelled a bunch of foreign students.