freecounterpoint: Coanda railgun launcher

Thursday, December 23, 2010

From 0 to 240mph over 300ft. Not bad, eh?

Mr roT said...: I once got my nose caught on one of those things.

Goddam that hurt.; 12/23/2010 10:09 AM
Tecumseh said...: On the subject: Aesir’s first prototype, named “Embler” and depicted in the video above, demonstrates the so-called “Coanda effect,” where air speeds up as it “sticks” to a curved surface. Aesir’s drones take advantage of the Coanda effect to direct air down, away from the drone, boosting lift. Aesir doesn’t appear to have any paying customers yet — and is reportedly bankrolled by a single investor.

Hah! I'm putting my hard-earned money to work. Not a penny for the Rotter tab. There are better uses.; 12/23/2010 10:26 AM
Mr roT said...: This is clever. The top and bottom rotors contra-rotate so the thing doesn't need a tail rotor, but the engineer didn't want the top rotor's wash to run through the bottom one so he Coandad it around the outside, where he also put the control surfaces.

Pretty good.

Still, I could've done better; I would just make the pitch of the bottom rotor steeper and put a cam on the thing so one could look down chicks' shirts.

Duh.; 12/23/2010 11:20 AM
Tecumseh said...: Getting back to engineering, are we, Herr Rot?; 12/23/2010 2:10 PM
Mr roT said...: Meh...

Hey, how come you're not bitching about me verbing your hero's name?; 12/23/2010 2:33 PM