Gravity Plane - vliegen zonder brandstof???

[Mijnheer Rob]

Hoi,

Kwam een ouder filmpje (2006) tegen van de zogenaamde Gravity-Plane.
Stijgen door helium zakken en dalen met lege helium zakkken in glijvlucht.

Ik kende dit principe nog niet en kon 'm hier nergens vinden, bij dezen dus...
Volgens mij nog verre van z'n eerste echte vlucht, maar altijd leuk om dit soort dingen eens te bekijken...

Link naar website

En het filmpje:

In order for the GravityPlane to become airborne, gas bags inside a pair of rigid, zeppelin-like structures are filled with helium from storage tanks inside the vehicle. This causes the aircraft to become lighter-than-air, and it rises from the ground. Compressed-air jets on the sides of the craft add further propulsion, pushing the vehicle skyward and decreasing the craft's overall weight by releasing the stored air which acts as ballast. Once the craft reaches the altitude where the helium is no longer lighter than the surrounding air-- theoretically as high as ten miles up-- it is unable to climb any further. Some of the stored compressed air is then expanded into the dirigible areas, decreasing the buoyancy effect of the helium and starting the aircraft's descent phase.

[markw]

Hoi,

Is al eens eerder langs gekomen:
http://www.modelbouwforum.nl/forums/...-toekomst.html

Groeten,

Mark