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Old Sep 05, 2011, 05:36 PM
m_ark is offline
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Australia, QLD, Toowoomba
Joined Mar 2011
571 Posts
Avoid loose surface runways: FOD

or Foreign Object Damage
learn from my fail

The effects of volcanic basalt rock (bitumen road-base) on EDF Fan/Motor Units:

http://www.rcgroups.com/forums/showp...postcount=1714

FYI:
Blue metal crusher dust is left over at quarries when they are crushing blue metal (volcanic basalt) rock to be used on bitumen roads. The road constructors buy all of the suitably sized gravel. The 'dust', which contains about 80% dust and 20% fine grit up to 4mm in size, is sold for use in gardens, landscaping, lawns, drive-ways and house slab foundations.
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