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Month: July 2017

Federal A2500A Skis, no rigging ?>

Federal A2500A Skis, no rigging

Pair Federal A2500A Aircraft skis.  SN 387.  Manufactured Jan 1948.  No rigging. They are on the TC for Stinson,  No approval needed. I don’t know about other aircraft. Federal Aircraft Works The Federal Ski ATC 82 Prod No 40 Ident A2500A Approved static weight per ski 1250 lb Date of Manufacture 1 48 Serial No 487 (both) You can pick them up in New Jersey, or I’ll happily pack them in the manner you request. Bubble wrap and cardboard is…

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Franklin Engine ?>

Franklin Engine

Franklin Engine 6A4-165-B3 SN 32385  Heavy Case: Casting 18905 Last inspection 14 June 2003  1149.2  SMOH Starter, generator, manifolds, and balance tubes. Crated and ready to go by carrier of your choice.  30 July 2017      

Hyperloop: Like a Bullet? ?>

Hyperloop: Like a Bullet?

Thunderf00t, a great chemist you may be, but you need to review your mechanical engineering. Hyperloop for all its challenges – and particularly the danger of a vacuum failure – will not “shoot like a bullet” in the case of tube and vacuum failure. In a gun, the projectile fits tightly in the barrel.  It is propelled by massive pressure behind it.  In the case of a 9mm pistol, the pressure is 2,400 atmospheres, 35,000 psi (2400 Bar).  When the…

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Hyper Chariot — Technology’s version of #FakeNews ?>

Hyper Chariot — Technology’s version of #FakeNews

Elon Musk rekindled the dream of travel in a tube.  It’s not a new idea.  Engineers in New York experimented with a pneumatic subway in 1867.  A hundred years later, the Federal Railway Administration experimented with a train that traveled on an air cushion.  In 2013, Musk, reputation strong with engineering successes at SpaceX and Tesla Motors, proposed a 700 mph train-in-a-tube that could be built at a tenth of the cost of the California High Speed Rail system.  He…

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Fair Voting and Gerrymandering ?>

Fair Voting and Gerrymandering

“My vote doesn’t count.”  “The system is rigged.”  The complaints are manifold.  Suggestions are scarce. Winner take all, or first-across the line voting schemes are often blamed.  A plurality voting protocol leads inevitably to a two-party system, the process being described by Duverger’s Law. More fundamental though, is the geographic basis of almost every existing political structure.  In the United States, we vote in wards, consolidate the totals in precincts, and consolidate them again in districts.  For President, the districts…

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