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As most of us that study substitute energy, eco-innovations, and hybrid car technologies, we understand that they are engineered with regenerative systems. For instance the regenerative braking scheme on hybrid cars takes the friction applied by the brakes to decelerate the automobile and collects that kinetic energy to put a charge back into the battery. That makes perfective sense, but what if we are dealing with an aircraft in flight? Wouldn’t it be nice that when an aircraft comes down from altitude, it would be using all of that energy that is produced with the noses pitched down and the aircraft speeds up and reuse it? Surely, we would wish to do this, and the only issue is the added weight required for such a system, and how to put that energy into a form that we may use for future propulsion. There are a heap of Electric Aircraft, but in general the batteries weigh too much, so it is a problem, as you know aircraft have to be very light and made of lightweight materials in order to fly. However, it is my contention that in the near future we will have batteries which may even be integrated into the skin of the airplane, which are very light weight. And at that point it makes sense to have Electric Aircraft, rather than aircraft that run off of aviation fuel. Now then, since that future potential eventuality is almost upon us, it makes sense to start out engineering a regenerative to capture the energy when the aircraft slows down while it is flying, while it is descending from altitude. This would be easiest with a propeller driven aircraft where the pitch of the prop may be increased, and as it comes down it will charge up the batteries. Interestingly enough, there have been military aircraft which have pop out wind generators which charge up the batteries while the aircraft is flying, or descending preferably, and such systems have been applied to pressure up hydraulic schemes also. So these systems already exist, nevertheless I would suggest that for a usual aviation aircraft why not use the propeller which is already there, to do this. The future holds a lot of wondrous uses for new materials. One of those interesting properties of these new materials will be the morphing technologies and abilities. Morphing technologies for rotor blades, are already and in the final exploration stages, and prototypes will soon be available. They will grant the helicopter to run silent, and have more lift for takeoff, but less drag while flying. We need to use those technologies to manufacture better propellers for ordinary aviation aircraft, in particular electric aircraft or hybrid aircraft in the future. Then we may use these propellers to support us with our regenerative systems. Indeed I hope you’ll please consider this. Most helpful customer reviews 14 of 15 people found the following review helpful. The scope and detail of the text vastly exceeds that of any of the other A&P “textbooks”. The text is not written at a fourth grade level like the other textbooks. If remedial instruction is your objective, this is not the textbook for you. If, however, your objective is quality instruction on basic electricity, electrical systems, and present day avionics systems this comprehensive text is vastly superior to others I have examined.
In the A&P and advanced maintenance curriculum at the university where I teach, this text is used as a reference in five different courses. This text is the one you want to “hold on to” as a reference for your future maintenance activities.
The only flaw in the text I perceive is given the rapid pace of adoption of new electronics and computer equipment in the aviation industry, the text will soon need revision to remain current. 8 of 8 people found the following review helpful. 4 of 4 people found the following review helpful. |
Aircraft Electricity & Electronics
Not enough specific, somewhat outdated
Every Aircraft Mechanic Should Own This Book!