As long as motive force is powerful, board brick also can fly on a day! This word showed aviation engine adequately the importance to battleplan, contemporary aviation engine basically divides fan of the axis that it is eddy, Guo Jiang, eddy these 3 kinds, the motor that at present battleplan and place of civil aviaton plane use in order to push muscularity, the eddy fan engine with oily low cost is absolutely mainstream. But why to no matter use,plant engine, because be in its job process, engine keeps starting, close stop, in sky of on any account the time in the harsh environment with cold alternant heat, high strenth runs, always meet those who have all sorts of trouble to happen, among them the engine of You Yixiong danger " jockey in sky " the accident is most terrible, once the plane loses power, with respect to meeting pole fast drop, if did not deal with correctly, consequence is probable namely machine destroy a person to die! (MiG 25 battleplan)
In 559 time the quantity produces engine of fan of generation eddy after enlisting in army, those who process craft and data is because the technology is opposite backward, immature, engine " jockey in sky " the occurence rate of the accident is as high as annual, and arrived after 21 centuries, as technical innovation and progress, of engine of aviation eddy fan " jockey in sky " probability was reduced 30 years, such sudden circumstance that in that is to say some of air man is born not to encounter engine sky possibly also firstly eventually, jockeys, and it is current that this also makes an aircraft one of the mainest basises of the safest traffic means. Although engine sky is medium the probability that jockey is very small, but if where buy is each air man however,must learn seriously and the main subject of imitate drilling! So after jockeying in engine sky, whether be started again? (American Davis - Meng Shan air base, aviation engine is graveyard)
Eddy fan engine basically is to pass fan to turn ceaseless induction air and path of the contain outside lighting gas mixture to be entered respectively and connotation next backward eject forms counterforce to drive a plane to advance thereby. So original does the motive force that allows fan to rotate originate where? Apparent this must have the aid of the action at outside force! Because plane of inchoate eddy fan engine does not have the design of APU, the air that uses ground airport normally so reduces gas car, pass to air of high pressure of infuse of interior of eddy fan engine, puff engine fan rotates thereby reach the rotate speed that start. (principle of eddy fan engine)
Blow the dependence of gas unit to the ground to decrease, and the security that enhances engine, the auxiliary power plant of an APU that be called can equip on almost all plane at present, APU is an engine of small-sized gas turbine that carried electromotor and batteries set, the plane is started in the ground when, APU is started through ego, blow air to the sustainer next, make the sustainer is started thereby. And such as Boeing the air bus with 787 the most advanced and so on, the buy inside the sustainer as a result of it an auxiliary motor, because this APU device is not in charge of blowing air, pass however to electromotor group power supply, electromotor drives fan to rotate later in electrify, of the sustainer that finish start.
(aviation engine ground blows air)
After jockeying in engine sky, the natural air when light relies on plane high speed is swayed can't reach the rotate speed that start, because this air man also must use APU be blown to the sustainer,be enraged or transmit electricity, whether can the attempt drive in sky (engine is started in sky) , because breakdown of mechanical, oil path, circuit and flyer bump the rigid structure trouble that cause,be commonly nevertheless, the probability that starts so actually not tall. (APU assists dynamical plant)
Eddy fan engine comes back relative to Yu Luo paddle engine, the measure that start is trival, the time that start slants long, thrust from 0 climb slower, the opposite height because of this plane under 2000 meters when, it is forbidden commonly drive in sky (motive is inspired again in sky) , because although drive,succeed, the plane is likely at that time also already direct because of out of control object the ground. Because this is in height is inferior encounter when jockeying in sky, what air man needs to consider above all is to be able to find proper place to have crash, if do not have very hold, can do so can be eject flees for his life only, after all air man is much more expensive than battleplan. (eject of Russia air man flees for his life)
Battleplan cent is double hair and single shot two sort, to double hair battleplan, the dangerous sex that jockeys in sky is not big, because aircraft design has " lowermost safety is ensured " compulsive requirement, also can finish with an engine only descend, but to single shot battleplan character, that jockeying in sky is true deadly killer! (double hair battleplan)
