CTD, Thanks for that clarification,
<font face="Verdana, Arial, Helvetica" size="2">The droop stop weights are made from alloy steel.
The pendulum (SPA) dampers, product balance and tail rotor balance weights are made from tungsten.</font>
Definitely much to my relief as those weights total over 100lbs in mass ….. But, the weights I was originally referring to, are the
Hub Balance Weights. These are attached to the inboard facing lugs of the SPA brackets when required during rotor balancing. It is still my understanding that these are made from Depleted Uranium. There can be up to a couple of pounds of weight on the average 412 hub.
These weights are handled by the engineers/mechanics during balance adjustments of the main rotor and no doubt that pilots, sometimes when preflighting the rotor, will come into physical contact with these weights.
heedm,
Skycop: I will heed your advice. There is no dust problem with the weights I’ve handled.
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sprocket: .. No standards? Nooo problems!