1960's? Guess they must have read some of the model plane magazines
that were out in the 1950's.

Anybody other than me make an underwater glider from plastic models in the
50's? Most ended up as gliders, after you break the little props enough times.
You can make an ROG from the bottom of the pool, circle up, then glide down.
Lot's of fun. Never succeeded in making one air leak proof.






In article ,
(JJ Sinclair) wrote:

Instead, they pump ballast water in and out to subtly change their buoyancy.

Would that be, *Air Ballast*?

The battery-powered gliders have quickly lured the interest of marine
scientists

Oh, Motorgliders.

have fitted early models with instruments that measure ocean
currents, salinity and temperature.

What, No Varios?


JJ Sinclair