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Units bug in the moment doc. Discovered by Gerhard Wesp.

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andy 2005-02-08 20:24:52 +00:00
parent 65a9d70df8
commit 63bf166fab
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Docs/README.yasim
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@ -184,16 +184,16 @@ propeller: A propeller. This element requires an engine subtag.
will be) it should be set with an <actionpt> will be) it should be set with an <actionpt>
subelement. subelement.
mass: The mass of the engine/propeller, in pounds. mass: The mass of the engine/propeller, in pounds.
moment: The moment, in kg-meters. This has to be moment: The moment, in kg-meters^2. This has to be
hand calculated and guessed at for now. A hand calculated and guessed at for now. A
more automated system will be forthcoming. more automated system will be forthcoming.
Use a negative moment value for Use a negative moment value for
counter-rotating ("European" -- CCW as seen counter-rotating ("European" -- CCW as seen
from behind the prop) propellers. from behind the prop) propellers.
A good guess for this value is the radius of A good guess for this value is the radius of
the prop (m) times the mass (kg) divided by the prop (in meters) squared times the mass
two; that is the moment of a plain "stick" (kg) divided by three; that is the moment of
bolted to the prop shaft. a plain "stick" bolted to the prop shaft.
radius: The radius, in meters, or the propeller. radius: The radius, in meters, or the propeller.
cruise-speed: The max efficiency cruise speed of the cruise-speed: The max efficiency cruise speed of the
propeller. Generally not the same as the propeller. Generally not the same as the