Using Calgary as a representative destination (3760nm):
You need (conservatively) 6 x VC10 to move 650 troops; 2 x A330s would do it (with room to spare).
The VC10 would needs to do it in 2 legs.
Thus, 12 x VC10 cycles vs 4 x A330 cycles. There is a cost associated with that.
Fuel costs. VC10 circa 7 tonnes an hour; A330 about 6 tonnes an hour.
So, 2 x A330 @ 6 tonnes/hour, times 8 hrs (3760nm @ M0.80 still air) = 96 tonnes.
6 x VC10 @ 7 tonnes/hour x 9 hrs (extra time to go via Goose) = 378 tonnes.
At today's fuel prices
http://www.iata.org/whatwedo/economics/fuel_monitor/index.htm that works out at just over $40,000 for the 330 solution and just shy of $165,000 for the VC10.
This is without factoring in the HOTAC for the delayed pax, spares provision, additional T&S for the multitude of crew etc etc.
It is a no-brainer.
