On Thursday, March 19, 2015 at 12:00:08 PM UTC-5, Roger Hurley wrote:

The aircraft sits on its mainwheels and nosewheel - the wing has a negative
angle of attack, no lift produced. Throughout the acceleration this
condition is maintained, until rotation speed is reached.

Independence, Operational Convenience, Simplicity, Lower Cost.

Questions to me via website.

Actually, Roger, I really like the idea of drive wheels for acceleration. Maybe because I had the same thought for being able to self launch a very light sailplane from a ridge site 25+ years ago. At the time, my thought was for a simple 12 volt battery (like most sailplanes have) to drive a model airplane electric starter motor, belt driving the wheel on the glider. Never was too keen on the idea of trying to launch in light wind, running while carrying and controling a flying machine.

Hope you weren't offended by my "burnout" comment. Looks like you are working to resolve the issues that we all face. Now, if we can get the production volume up on the jets to get the cost down...

Steve Leonard