It would have been prudent to strap the FWD and AFT most 12T vehicles to 9G FWD/AFT, instead of the usual 3G. They would also need 1.5G vertical restraint.
Number of straps required for the 12T vehicles:
FWD + AFT: 12.000 x 9 / 2250 (capacity of standard strap) = 48 FWD + 48 AFT.
SIDE + VERT: 12.000 x 1.5 / 2250 = 8 L + 8R + 8 VERT
Total number of straps required for each of those two vehicles alone would therefore be 120.
For the 18T vehicles, 3G FWD/AFT is sufficient, for the following calculation:
FWD + AFT: 18.000 x 3 / 2250 = 24 FWD +24 AFT
SIDE + VERT: 18.000 x 1.5 / 2250 = 12L + 12R + 12 VERT
Total number of straps needed: 84.
All in all we're looking at 492 straps. It's been a while since I was onboard a 747 freighter, or had a close look at the AHM, but I'm pretty sure finding enough restraint points would be a serious challenge - if at all possible.
Last edited by SMT Member; 8th Feb 2015 at 16:31.