You're right, it's irrelevant, and we'll get rid of it for you. Please keep to the topic and note that this is a science forum and not a religious venue. Please keep islam for the mosque; here we preach scientific facts.
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I saw a porno film where this happened accidentally and the woman was enraged maybe this was due to absorbed testosteroneThe intersection of porn and factual reporting is rater small.
Everything about an aeroplane is a compromise between strength and weight, lift and drag, cruise speed versus landing speed....and hybrids offer a few more variables for the designer to play with.
Propellors are a good compromise for slow flight, low altitude, and short sectors, and for very short trips (island hopping, air ambulance..) it turns out that piston engines are more economical in terms of maintenance than turbines. Problem is that you don't want the propellor tips to exceed the speed of sound, so you either need a gearbox (dead weight) or a diesel engine (heavier than gasoline, and needs liquid cooling, but is efficient at a lower speed than a gasoline engine of the same capacity) or a smaller propeller (less efficient because the hub doesn't generate as much thrust as the tip)....or run a combustion engine at its optimum speed and use an electric drive train, as in many railway engines.
One interesting hybrid uses several small props distributed along the wing. The accelerated airflow improves lift and control at low speeds, and the small electric motors produce less profile drag than two large piston engines: the prime mover is a big diesel in the fuselage, where weight and shape is less of a problem.
Single-engine hybrids can use a battery for takeoff and climb, at say 200 horsepower short term, with cruise power supplied by a somewhat smaller (100 hp continuous) engine than you would need to get off the ground safely. This system is particularly interesting for noise-sensitive missions.
Or you can go the other way: use a combustion engine to climb above the clouds, then solar panels for cruising.
Meanwhile, diesels are getting lighter and gasoline engines are being developed with lightweight gearboxes and improved takeoff power ratings. We live in interesting times.