... I think I must have said it in a confusing way. The forward thrust of a jet (except the VSTOLs) is equivalent to the torque of the helicopter and serves to...
... OK. The Bernoulli effect "pulls" the air down. Although the wing angle can be adjusted to push the air as well, I think that is used mostly for very high...
" One thing it might be useful for is stealth operation where you need hovering capability. The lifter would be much quieter than a helicopter. Bob Clark" I...
According to one lecturer i've listened to, who studied engineering at one time in his life, there were as of 1905 12 proposed technologies for flight. To my...
A little fun sidelight to this thread. In the mid-1980s i worked for several months on a database project for a large corporation that had its own airline,...
One exception here. My brother in law was a helicopter pilot, owned his own business. If the engine flat-out quits, pilot has ONE attempt to land as usual...
... Does ... The blades themselves have a lot of angular momentum. They make a pretty massive flywheel. The turbine has some angular momentum but I think it is...
"You might notice that airplane pilots are a sociable, easygoing lot who have a casual manner about them. Helicopter pilots, however, are known for being...
"BUT: He was a great jokester. Was he pulling my leg on this one? Does a helicopter REALLY include said flywheel? COULD it carry a flywheel large enough to...
"The blades themselves have a lot of angular momentum. They make a pretty massive flywheel. The turbine has some angular momentum but I think it is a lot less...
Never heard of that flywheel trick before. Never have piloted a helicopter either, or any other aircraft. Just kinda missed out on all that. Instead, i have...
If you've been on this list for awhile, you've probably noticed that about twice a year on average i go through some kind of terrible crisis, usually...
That helicopter trick is called auto rotating. It's kind of like maple seeds falling out of the tree and is a little like a helicopter twirling gently down to...
There are at least a couple of us on the list that can relate to financial crisis Michael, and maybe even dissolved family structure. Holding things together ...
... Do a search on google for Tesla violet ray quack medical devices http://members.bellatlantic.net/~vze3cw3z/history.html may steer you in the right...
"A spinoff of tesla's high voltage devices wahs the "violet ray machine" does anyone have the plans for this device?" Quack medical device. Simple HV spark...
There have been threads in the past, related to these devices... wouldn't waste time with them. I have one if you are interested in buying one. It has an...
If we are all so very smart let someone tell what it is in the tube which makes the purplish glow? Air does not glow purple. There needs to be an element...
Usually Argon was used for purple, and the tubes were rather low vacuum. The one that I have, looks very similar to the one in the picture at this link....
... Hi Hal, The gas used in the violet ray machines bulbs appears to be argon. Argon is also used as an inexpensive backfill gas in modern incandescent lamps ...
Yes James, argon might do in the neon business but to kill worts and other infections the radiations of MERCURY are used (only a small part of which are...
Thanks, Bert. The ozone is produced by the action of the rays coming thru the glass, on the oxygen atoms in the air surrounding the tube. I wonder whether...
Interesting Bert... not sure the Violet Ray did anything other than psychological benefit maybe. Do you know what causes the purple glow on the outside of...
Hi James, There are two possible causes. In one case the tube may have become "gassy" - this can occur with age or overheating, and you are actually seeing a...
Actually, air can do it. The color emitted by an ionized gas or mixture (as air is)depends on the partial pressure and degree of ionization of the various...
"Usually Argon was used for purple, and the tubes were rather low vacuum. The one that I have, looks very similar to the one in the picture at this link....
"Interesting Bert... not sure the Violet Ray did anything other than psychological benefit maybe. Do you know what causes the purple glow on the outside of...
"The fluorescence is caused by impurities in the glass being stimulated by low energy X-rays from the the sudden deceleration of the electrons once they...
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