And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Maybe the alternative to solid aluminum blades? Harder steel to resist abrasion/erosion, but hollow to lessen the weight. I've never flown behind a wooden prop, but I've been told it's bad to fly them in the rain. Some wooden props have metal covers over the leading edges of the prop, held on with flush rivets.
I would think abrasion more a problem than erosion. Since its hollow blades they're featuring, do they mean something akin to crevice corrosion?
ReplyDeleteProbably unrelated, but it says, "Curtiss Electric Propellers". Wikipedia states that the electric motors alter the pitch of the propellers.
ReplyDeleteI think they mean water spray eroding the propeller. Although I don't know how a hollow blade prevents that.
ReplyDeleteMaybe the alternative to solid aluminum blades? Harder steel to resist abrasion/erosion, but hollow to lessen the weight. I've never flown behind a wooden prop, but I've been told it's bad to fly them in the rain. Some wooden props have metal covers over the leading edges of the prop, held on with flush rivets.
ReplyDelete