Originally Posted by
Sport_Pilot
There is little drag because the engine is running and preventing the air from piling up in front of the engine. There is positive pressure, but not as much as it would if the engine was off.
BTW air is a fluid. Hydraulics is not limited to liquid's.
Are you really that stupid or just, as we all think, playing games?
Giving you the benefit of the doubt, let's talk terminology for a minute:
1) The term
HYDRAULIC is based on the word hydro, meaning water. This can be expanded to oils and fluids made specifically for the purpose of operating equipment or, if you really want to push the envelope, anything that is in a liquid state, such as wet concrete. A good example of this would be hydroelectric power, being electricity generated by the flow of water spinning a generator, normally at a major dam such as The Grand Coolee in Washington or the Hoover in Nevada
2) The term
PNEUMATIC is defined as anything being powered by air or gas under pressure.
3)
WHAT'S THE DIFFERENCE BETWEEN THE TWO? IN A NUTSHELL, GASSES CAN BE COMPRESSED WHERE FLUIDS CANNOT!!!!!!!!!!!!!!!!!!!!! This simply means that since air is a gas, it cannot be a fluid and therefore IT CANNOT be used in a hydraulic type system. By the same token, a turbine cannot operate using a liquid medium because it can't be compressed 7 to 10 times like is done in a turbine engine
4)
THESE ARE KNOWN SCIENTIFIC FACTS, TAUGHT TO SCHOOL KIDS STARTING IN 1ST GRADE