Thom Stewart wrote:
Doug,

I mentioned early in this discussion that with a topping lift hoisting
boom, the boom only positions the location of hoist. There is very, very
little force on the boom. The hoist is on the topping lift.

Mooran re-stated this.

You are the one insisting the force is the same on the end of the boom
supported on the other end by a Vang and a gooseneck. We say BS and sign
off.

In other words, you're saying that 100# on the end of the boom supported
by a topping lift is not the same as 100# on the end of the boom
supported by a solid vang?

OK but I'm a little confused... how does the weight know the difference?

DSK