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Category Archives: airplane
The Martin Jetpack and Its Design Tradeoffs
[youtube=http://www.youtube.com/watch?v=kLccl_NWDQE] Here’s the technical information. It uses a piston engine to spin two smallish propellers. At first look it seems inefficient: the propellers are so small (diameter 1.7 ft so radius is 0.26 m) so the air mass flow is low … Continue reading
Posted in airplane, engines, Motivation, Science Links, Transportation
Tagged Design, Jetpack, Martin, Tradeoff
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Long Endurance UAV Design
Karoliina has some thoughts on plane design, looking at High Altitude Long Endurance (HALE) UAV:s as inspiration for high L/D craft, to ultimately cruise at fast speed with little power. I disagree somewhat, and I’m sketching out why, below. Probably … Continue reading
Posted in airplane, Models, Motivation, Navelgazing, Science Links, Transportation
Tagged Aircraft, Conceptual Design, cruise, HALE, Loiter, UAV
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A Small Step for Rocketry
“Rockets are special” is an interchangeable meme with “rockets are expensive”. Well, hopefully they get less special. Armadillo’s been making progress, from the latest update: For the very first time, a complete system was operated without the presence of any … Continue reading
Russian Stealth Jet Potentially Shown Now on Thursday
The competitor to F-22, Sukhoi’s new PAK-FA fighter is going to do its first flight today. Secret Projects Forum is the place to follow it. They’ll probably link to further material like pictures if any will be available. These things … Continue reading
A New Competitor for Armadillo?
For propelling the Rocket Racer? [youtube=http://www.youtube.com/watch?v=qmbnzCV4vUc&feature=player_embedded] 😉
Ridiculous Laws, Part n of Infinity
It seems the US is getting onto private aviation bashing. No trailerable aircraft to airports or automobile gasoline for the engines. The former could be seen to be motivated by trying to prevent building bombs into aircraft, the latter is … Continue reading
Posted in airplane, Demotivation, Homebuilt, idiocracy, industry, Transportation
Tagged alternative fuel, aviation, Electric cars, FAA, overregulation, private, Regulation
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Astrospies and Other Nova Documentaries Online
[youtube=http://www.youtube.com/watch?v=m2K6HHUbUe0&feature=player_embedded] [youtube=http://www.youtube.com/watch?v=q-mVR4F7tfY&feature=player_embedded] [youtube=http://www.youtube.com/watch?v=1kNszWU7hTw&feature=player_embedded] Merry Christmas everyone!
Posted in airplane, Architecture, industry, Journalism, Transportation, Uncategorized
Tagged Almaz, Astrospies, MOL, PBS
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RQ-170 Sentinel A Morph Wing Aircraft?
Just a theory of the recently photographed “Beast of Kandahar”. I was browsing the NTRS (for another project), when I ran into this: A hinge, actuators or a locking mechanism could explain the wing humps (if more conventional structures are … Continue reading
Be Careful When Starting Large Projects
Photos of a certain large Soviet ground effect vehicle.
Posted in airplane, Architecture, Demotivation, industry, Motivation, NASA, RLV:s, Transportation
Tagged Orlyonok, WIG
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