MadMuz, you seem to have made up your mind already and all opposing facts will not change it.
All your examples imply, that the link between the pushing object (Prop or rope-pusher) is loosly connected to the object it wants to push. if you tie your engine to your gyroplane with a rope, it would be better to use pull rather than to try and push. For all other purposes your analogy is simply wrong. The reason why pushing a train is not a good idea is, that a train consists of many links, which may buckle. I hope the connection between prop and engine on an aircraft is not made of many linked objects, but if yes, then pulling would be better.
It all boils down to the following: If you have a rigid axle on a rigid motor mounted rigidly to an airplane, it does not matter, whether the prop sticks out in front or in the back.
It may be counter-intuitive, because mostly, when we think push, we think about one object (person, locomotive) pushing another not, or loosely linked object. But if the pusher prop is mounted to the pushed object, it makes no difference.
K.
Sat Dec 06, 2014 4:03 pm
Hillberg
Joined: Thu Nov 07, 2013 12:56 am Posts: 3074 Location: VERY LOW LOW LOW EARTH ORBIT
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The most frustrating thing about engineering is that emotions always trump (overrule) facts (that's why engineers can never win arguments because they always argue facts rather than emotions)
_________________ “If things go wrong, don't go with them.” ..... ― Roger Babson “People say there are thousands of options we have in life. I say we have only two: we can either be happy or be unhappy.” ..... ― Pawan Mishra
Sat Dec 06, 2014 4:14 pm
Rotorspaz
Joined: Wed Nov 19, 2014 12:27 am Posts: 72 Location: Don't know, don't care.
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Fizix dont give a rats bout any engineers oppinion.
Your deluded muz. Its not bout whos rite and whos rong. Fizix isnt interested in your wacky annalogys. You just cant bring yourself to even ponder that you maybe off track. Muz know, orrite. Fuc me drunk, iv come across pigheaded before, but you.......
Your ignorance is deludingly blissful aint it muz. Just be prepaired for reality if it ever sinks in. Itll hurt.
_________________ An infedel and fu**n proud of it. My mind can not be washed, so dont try.
Sat Dec 06, 2014 5:26 pm
Hillberg
Joined: Thu Nov 07, 2013 12:56 am Posts: 3074 Location: VERY LOW LOW LOW EARTH ORBIT
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the big difference between a prop and a rope on the front is that with the rope if the craft pitiches 5 degrees down, up, left or right there is an instant 5 degree correcting force trying to restore the alinement between the center of drag and the pulling point of the rope, for those of us who flew a gyro glider on a rope and found that a little rudder produced a little yaw but a lot of rudder produced wery little more due to haveing to over power the restoring force that got stronger with every degree of misalinment. With a prop on the front there is never any misalinment of the pulling force, it will be where ever the craft is pointing so you will have to depend on other forces from other sources for stability, tail feathers will do the job with prop up front or in back.
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