What is it called?

Question:
What do u call when u have an airplane writting on the air and how do u do it?

Answers:

does anyone else operate a hughes 300 helocopter and having problems with getting parts?

I belive it's called "Sky Writing" or "Sky Typing".

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sky writing.... the plane releases smoke

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Its called sky typing.Usualy done with 5 or 6 vintage ww2 trainers releasing smoke at the control of a main computer.
The smoke is generated by oil injected into the exhaust manifold.
The oil is named korvis oil,used as a mold release agent for concrete castings.

How fast does a jet liner go on average when it's taking off? Seems so slow when watching them.?

It is called sky writing.
The smoke is a diesel oil or paraffin based oil that is injected into the exhaust pipe. It burns white.
There is no computer to control it. The pilot merely switches the flow of the oil on and off as needed.
Any plane can have a smoke oil system installed, not just vintage trainers.
Generally I use my GPS to chart what I am doing or writing.
After a while it becomes second nature.
The oil does leave quite a mess on the airplane but it is well worth the effort.
Pretty cool during manoeuvres.

Does anyone have any useful websites for aircraft auxiliary power unit (APU)?

There is two different ways.
Sky Typing that uses several airplanes that each fly their own position and a computer controls the release of the smoke.
Second Sky Writing uses a single airplane that flies aerobatics to spell out each letter with smoke.

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Skywriting

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Sky writing and it releases a special "smoke" but the conditions have to be just so.... but i dont know where you can get it

what is the Climb rate of the Hunter Mk 2 and 6 and onwoods?

Sky Writing is caused by spraying oil into the exhaust screen.

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