Having flown mine with holes and with holes covered up, it has seemed the belly board is a little more effective with the holes covered up.
I'm installing landing & taxi lights in two of the belly board holes and was wondering if I could clarify once and for all why the dive bombers in WWII had perforations in their dive brakes. One might think that the turbulent air caused by the holes would create more drag and that's why they did it, but no . . . they did it because the airflow over the tail was so disturbed by just straight dive brakes without holes that the plane was hard to stabilize in the dive so they could aim their torpedoes. Another reason holes are drilled in belly boards and wing-mounted speed brakes is to lighten them. To top it off, I found this. http://aerade.cranfield.ac.uk/ara/arc/cp/0323.pdf So I'll continue to keep my holes covered. Mike ____________________________________________________________ Find Business Careers here. The source for New Careers. http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTEKqdYQMNUrYHI08CKwOn9it2fSRyOXJVf1vhUFsmpFJix3IUWxgk/
