On Sat, 10 Nov 2007 02:07:38 +0000 (UTC),
(Paul Tomblin) wrote:

In a previous article, Bob Fry said:
"BD" == Bill Daniels bildan@comcast-dot-net writes:
BD You know, these look like RC models of some kind which brings
BD up a question. Why isn't it possible to build an RC model of
BD Mollers contraption with electric ducted fans? I'd think
BD somebody with the creative skills (not me) would have done so
BD by now if it's possible.

Because Moller's concept is fundamentally stupid and unworkable. He
knows this and isn't about to illustrate that with a model. Though
why the investors and grantors haven't demanded this long before is
puzzling.

But the thing is that you can accomplish thrust to weight ratios in models
that are impossible in real life. And quietly too. And since thrust to
weight ratios and noise are two of the biggest problems with Moller's
design, I'd be scared that he'd made models to try to make it look more
workable than it is.


From a long time model builder I doubt if you would have enough thrust
using ducted fans and electric motors powered by batteries.I built
several models with electric ducted fans and they either didn't have
the rpm to generate flying thrust of if flew was at knee level for
maybe a 360 before the battery went down. If I had put bigger
batteries in then the weight to HP ratio would have been way out of
whack.

It might be possible to put gas ducted fans in a model and get enough
thrust to hover. Not just sure how the control system would have to be
designed to keep level and turn vehicle and also fly forward????

As was said earlier. It's a bad idea waiting for suckers to dump money
into the project or Mollers pocket.

Big John