> "no noticeable "redirected thrust" or turbulence blanking the tail. . . which I believe is the real reason for the holes in the dive brakes on WW2 dive bombers."
That's what I read when I looked into it. I think a smooth board would do a better job of pushing air downward thus providing lift. Mine came with holes and long ago I taped over the holes to see if there was any difference. Mostly in my imagination I think, but it seemed more effective as a drag brake without the holes. My tape didn't last very long so I've just learned to live with the holes. More effective than holes or no holes is just making the board as large as practical and make it so that it comes down at a steep angle. I've flown a KR with a large flap that goes down at maybe 60 degrees, and it was excellent. Mike KSEE ____________________________________________________________ Scientists: Tinnitus Has Nothing To Do With Your Ears blesslifestyle.info http://thirdpartyoffers.juno.com/TGL3141/59a5ae2836cf62e285c24st03vuc _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to [email protected]

