Bozon, In the SFMA map, in the north, there is a triangle of fields 49,69,53 between which there is a large area of very flat land at 1470ft. I used this area to practice with the Norden site and the divebomb site together. It seems that, on my best calibrations, the Norden site was very close to the dive-site.
HiTech, I don't know how to accurately measure the error in the dive-site but I have documented about 40 drops in which I dropped with the green divebomb and/or the precision site directly over the target and estimated the distance that the bombs hit from the target visaully. The bombs ALWAYS hit late, in a fairly predictable range. I did about 20 tests at 10k above target at speeds between 160 and 200 and the bombs seem to fall ABOUT the distance of 3 FHs diagonal after the target. At 15k the error has been between 4 and 6 diagonal FHs in the 180-200mph range. At 5k the error was down to 1 1/2 - 2 FHs. The larger errors in each altitude range DO correspond to the faster speeds. If this is dispersion, then I am satisfied. I am already hitting targets fairly well with visual compensation. I just thought I should mention it.
Anvil