Battleplan began to be on the battlefield of fight closely since big fight, the air battle at that time basically is in those who undertake below the environment of low altitude and low speed, if prewar encounter harships to still can wait for battle of weather fair reopen, in case midway change of weather can it is toughen one's scalp-brace oneself, dangerous to risking life hit. Very short time arrived to go up century 30 time, cockpit also developed airtight type from open sail type, after mount windshield, rain brushed the bid that begins to make an aircraft with the equipment of deice to match. At that time is the similar device that uses the car is revised slightly with respect to mount on the plane, because this looks from the appearance,do not have too big distinction.
When World War II, battleplan can have flown to on 10 thousand meters headroom, speed per hour achieves 700 much kilometers, for instance FW190D propeller-driven aircraft of Germany. Phenomenon of tellurian rain snow happens in low clouds layer centrally, height is under 2 kilometre, because this is become occurrence soup when, it is dangerous to want battleplan to fly to cloud layer above to be able to keep away from quickly instantly only, the function that rain brushs actually already not big, besides taking off with descendent phase, pluvial snow just can cause certain effect to the plane. Accordingly, this period besides large transport, helicopter the plane with this kind of not high rate needs to install rain to brush, the sign that cannot have seen rain is brushed on battleplan.
Arrived contemporary, the motivation of battleplan became jet-propelled from piston evolution, flight speed and height are taller, additionally the promotion of speed also raised new requirement to the plane, above all the requirement that the appearance must accord with an aerodynamics, because want the eye shot with bigger give attention to two or morethings,still have, so the lid outside cockpit constructs by full glass almost, the appearance submits water form. Come so, cannot install the rain that can brush plane only to brush more implement. Additional, can fly off easily ultrasonic opportunity for combat, really disadvantageous also and advanced face installs rain to brush. Just modern war is tall also to the requirement of opportunity for combat, round-the-clock be most the requirement of at least, so when hard to avoid can encounter soup, how the method that appropriate is object of line of sight of block up of purify of glass of wind of archives of opportunity for combat emerge as the times require.
There are these facilities on contemporary opportunity for combat actually, just because,rain is brushed too spend low end and was abandoned, change and used the method with higher content of science and technology to stop, so apparently cannot see. The weather phenomenon no more than that battle function encounters is low altitude rainfall, headroom frozen these two kinds of circumstances, we letting know these high-tech equipment below is how work.
Eliminate pluvial requirement to surface of glass of cockpit of opportunity for combat above all, the opportunity for combat that high speed flies can throw water really with speed, but much rain is returned in vitreous surface enlarge dispersedly is line of sight of meeting block up. Method 1, change glass coating, because coating is high polymer structure, can repel rainwater, the rainwater on coating cannot can hold position of in rapid succession only dispersedly, family expenses car also begins to popularize this kind of technology; Method 2, below the situation that encounters rainstorm, coating action was weakened, be about to dispatch right now divide pluvial fluid, this device issues an edge in windshield, this kind of liquid not only can divide rain, still can demist, defrost, use rise very simple and effective.
It is frozen to headroom next, the need of demist, method 1, use decorate thermal conductivity line is passed to lift in windshield vitreous temperature, mist of so OK and special effective purify and ice, it is reported revive - 35 opportunity for combat use this kind of technology namely. Method 2, the blowy device that uses installation to issue an edge in windshield, this is the device that makes the sirocco of aircraft engine windscreen bottom use, sirocco demist deice is a kind of economy really practical method, but this is not applicable to the equipment of spray paint times, but be popular on a few transport and civil aircraft. Method 3, the ultrasonic happening source that installs a high-power in the edge below windshield, not only the obstacle such as snow of OK and cleared rain, still can remove dust, should be the most advanced, technology of efficient cleanness of windshield of opportunity for combat, but it cannot be ignored to the influence of air man.
Battleplan adopts above the circumstance of these measure, still be very few as a whole. To the opportunity for combat that high speed flies, exceed apparent distance to fight those who lean is advanced radar and aim at a system, want the word that boat report works normally only, lose sight of temporarily outside glass still do not calculate too big question. Need the link that person eye judges, majority is to taking off with descendent phase, or below the circumstance that report of magnetic field interference, boat is out of order, and modern opportunity for combat also has automation equipment help to solve these problems, alleged have equipment and impunity, these are small and practical equipment still should match neat.
