Convair B-36D

B-36D Design

B-36D Construction-Started 10-17-2008

B-36D Test Flying-June 2009

B-36D Build Thread on RC Groups

This project is the biggest under taking we have taken on, design started in may of 1998 when I acquired some cheap bad quality drawings that I used to produce the first CAD drawings I had ever drawn. The first 3D drawings were drawn in 2003. To-date we have around 200 design hours in this airframe. The original design called for 6 gas burning 40Cc engines turning 20" props on shafts. I used test bearing out of a H&H loft block, the bearings worked great, but the shafting failed, then after about 25 hours of design we realized that the gas motors were to heavy to ever hit target weight goals. So the project was shelved. In 2005 the electric motor development for larger radio control aircraft made it possible to turn a 20" prop with a pitch over 12 at over 3850 RPM, this made it possible to produce this aircraft at a weight under 85 pounds. So in the summer of 2006 design went back into full speed, my family and work made it imposable to get the design done any fast than it did. The designing is 99% done and parts a being made.

The airframe has been test in the simulator (X-plane) and she stalls at 19mph, cruise at 35, and Max's out at 54mph. At cruise power with 5100 mah Lipo's she will have a flight time of 13 minutes with a reserve of 3 minutes.

In the future a build schedule will be posted. With Hunter and the families help structural testing should be in March, electrical systems testing, in May, and taxi test in early June, for the first flight testing in mid June.

AA Specs:

Wingspan-257" That's 21.416 FEET!!!!!!!

Power 6 Electric Hacker motors, .75Hp each DC-AC VFD's

Props-6 custom 20" 3 blade

Weight 85 pounds