"Bart Senior" wrote in message
. net...
1 point each

What are the benefits of Rigid Boom Vangs? Holds boom in a fixed vertical
plane

What are the various types? Hydraulic, Block and Tackle, Combinaton

How do they compare with conventional Vangs/Topping Lifts? Provide bi
directional adjustment in all horizontal planes

Is there a Rigid Boom Vang that eliminates the weaknesses of
a rigid design?

Don't know but I hope it's Selden as that's what I got.

How do these compare with a "Push Down" type boom vang?

????