One of these gliders was intended for driveway use:
https://youtu.be/i9sHtVzdW8Q
BTW, I used to work with John Schuster!
I also met Alexander Lippisch and he talked about how he came up with
the wing-in-ground-effect idea. Here's how it went: Imagine an
axisymmetric teardrop shape. It has stagnation pressure on the nose and
low pressure all around the area of maximum thickness. Now split it in
half and put it on a plane. You get the same flow pattern because there
is effectively a mirror image of the other half. Next, cut a hole in
the nose. This results in the inside being at stagnation pressure. So
you have high pressure inside and low pressure outside. That means the
shell wants to lift off the surface. He basically swapped the
axisymmetric body for a reverse delta wing that did the same thing.
I've always wanted to build a model of a Lippisch Aeroboat.
Cheers,
Tom
On 4/12/20 8:54 PM, Jake Boyd wrote:
Tom,
Cool idea. Maybe for driveway use the foam board “skids” could hold up better with nylon slides at each corner. Something like this may work....just need a way to glue them in....you must know a design engineer that could do that!
https://www.homedepot.com/p/Everbilt-7-8-in-White-Nail-On-Nylon-Glide-4-Pack-804304/306229537
Good thinking
Jake
Sent from EKAJDYOB
On Apr 12, 2020, at 19:34, Tom Speer <me@xxxxxxxxxx> wrote:
How about some indoor hovercraft racers for when we can resume normal operation? They'd also be something we can run in our driveways during the interim.
Check out this thread: https://www.rcgroups.com/forums/showthread.php?3550147-Chticat-Racer
Dollar Tree foam board, 2204-1400kv motors, 10 amp esc, 8X4.3 prop, 2s 850mah battery. Only need a rudder servo.
Cheers,
Tom
<chticata4cartouche.pdf>
