posted on Nov, 6 2008 @ 03:47 PM
It's strange I can find no thread about gravity plane concept. It promises a perpetum mobile, by an innovative principle, which anyway won't work.
The principle is, that you have compressed helium and air in different tanks. When you want to lift off, you expand the helium in bigger volume (some
type of balloon like zeppelins had) and you get lighter than air and you are airborne! At the same time you use compressed air to run the engines and
gain speed. Than you get to the altitude where you aren't lighter than air anymore (about 10 miles) and compress helium back to get heavier. You than
fly steeply back down to sea level (or ground level) and on the way by gaining speed compress air back for propulsion. The designers promise, this
process could be repeated as many times needed. Of course no fuel is used for propulsion
BUT it has a big problem. It is a perpetum mobile (machine that can run without fuel (and without solar panels) for as much time as needed). Such
machine does not exist and never will, because of the basic laws of physics. In this concept they forgot that for compressing helium on the top of the
curve takes a lot of energy and so does the compressing of the air on the ground level (because you have to make balloon empty for helium). The point
is, perpetum mobile does not and will not exist.
My question is, how come that according to this
link they presented the concept on "two of
the nation's largest aviation conferences - The National Business Aviation Association's (NBAA) Conference in Orlando, FL on the 7-9 of October and
Aviation Week's A&D Programs & Productivity Conference in Arlington, Texas on the 28-30 of October" (don't know which year) and there is no site on
the net I could find that denies the concept.
What does the ATS think? Is anything wrong with my theory??
And there is a link to youtube video
presenting the concept
And the official explanation of the method:
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.