|Quoting 9A-CRO (Reply 24):|
while in loop there is centfugal force in play.
shouldn't water then be going away of the aircraft
There is no such thing in physics as centrifugal force, you have only Newton's laws of motion which explain the appearance of the spray quite well.
The water released from the hopper continues to travel in the direction it was traveling at the moment of separation from the aircraft until other forces act on it. Air friction acts on it immediately, eventually causing it to slow down and to break into smaller gobs. Also gravity begins to act on it immediately and the effect appears to increase as the momentum of the mass of water decreases.
If you look at any one of the apparent "rays" of water spray, it represents pretty much a continuation of the line-of-travel of the airplane at the instant of separation. The fanning out of these rays illustrate the curving flight path as well as the time between parcels
of water. The more time since release the greater deviation from the present flight path of the airplane.
|Quoting Key (Reply 21):|
like water shooting upwards by itself.
In the LABS maneuver used by the Air Force, a bomb weighing thousands of pounds shot thousands of feet skyward "by itself" after being released from the airplane. It travels in the direction of travel. What you do not
see is water getting ahead of the airplane. The water at the end of those sprays was released at some time before the picture was snapped.
|Quoting FredT (Reply 19):|
Also noteworthy is that only one photographer, of the many submitting pictures of this display, has submitted pictures of the aircraft inverted - which would have been the highlight of the display.
At the Reno Air Races a few years ago a very popular race pilot had his airplane (P-51 fuselage with Lear-23 wings) come apart right in front of a hundred thousand spectators, most with cameras in their hands as I did. Seen any pictures of that? Proves nothing!
|Quoting Mirage (Reply 22):|
Can someone please explain to me why in this image the last sprays of water are NOT being thrown up, following the aircraft climbing attitude:
In the first of the two pictures in your post either the tank was just about empty or he closed the valves. Either way the water flow was stopping and as a result the water did not have the weight that it had at full flow and therefore not the intertia to carry it so far in the direction of travel. Wind resistance and gravity will act much more quickly on smaller droplets of water than on large masses.
Folks, an accusation of faking a photo is a very serious one here.
Happiness is not seeing another trite Ste. Maarten photo all week long.