effect of humidity on propellant

plz tell me effect of humidity on mechanical properties of solid rocket motor

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It makes it wet and gooey.
I will allow others to expand on that (or while thinking about that).
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On Fri, 10 Mar 2006 14:25:14 GMT, "Fred Shecter"
Gawd, I love technical terms...
<g>

Yeah, the humidity causes them to expand. Also, if the humidity is excessive, or prolonged, the nozzle clay will become...
um, well, "poopy"...[1]
<vbg>
tah
[1] Actually the nozzle clay will begin to soften and disintegrate. Friend of mine had this happen with a bunch of motors he stored in his basement.
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Tod A. Hilty
Hilty Information Systems
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Depends on the motor type.
A typical BP motor with a wound paper casing will swell upon repeated exposure to high humidity levels. I recommend storing BP motors in a humidy-controlled environment.
Certain propellents (e.g., sugar rockets) are hygroscopic. They will absorb water vapor from the atmosphere. High humidity levels will exacerbate this condition.
Keep all of your motors in a cool, dry place. Keep your beer in a cool, dark place.
Bill Sullivan
"The American people should be made aware of the trend toward monopolization of the great public information vehicles and the concentration of more and more power over public opinion in fewer and fewer hands." - Spiro T. Agnew
ii wrote:

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