I suggested to eject the water by pressure like a water rocket to lift and accelerate the plane if stalling, and to eject the last water ton faster 28 Nov 2010
- 23 Jun 2017
(on saposjoint, later on scienceforums)
Here I develop the forced water ejection for regular operation
too, without stalling, for new plane designs and as a retrofit.
The relative air speed apparently disperses the water at dropping. Forced ejection with 42m/s component to the rear
would avoid that, letting drop from higher faster safer overflight. It takes only 9bar in the water tanks, more in the air tanks: trivial with fiber composites. Spread over 2s, the acceleration is 0.6g, twice as much as a take-off, less than turbulence or a sharp turn. Done every time, it would prevent some stalls without human decision.Begin with <42m/s rear component, end with >42m/s
, then the water reaches a smaller zone from a longer ejection sequence. The vertical component can vary too.
Orientable nozzles achieve that, several fixed nozzles too. Hardware should regulate the speed and the throughput independently.
I suppose ejection to one side is too dangerous, but spreading to both sides symmetrically
seems feasible. One common valve for symmetrical nozzles is software-proof. The pilot could orient safely the overflight of mountainous terrain, independently of the fire orientation.
In a refined and desirable version, a touchscreen displays the terrain and the flames (from visible, amplified light, infrared, radar, UV... fused imagers). The scooper-dropper operator draws a target zone in the last seconds, and software deduces
what nozzles open when, in what direction and by how much.
I strongly advocate the remote control of water bombers. The touchscreen control needs fast transmissions then.
As they serve less in Winter, some European water bomber could then be based in the southern hemisphere
: Chile (summer), south Africa... Australia please check, it must be the rainy season then.
Marc Schaefer, aka Enthalpy