Something to do with this maybe...
It's a great aeroplane in my opinion - carries about as much fuel as a Tornado but weighs a lot less when fueled to that amount. Also has much better engines than the Tonka, so maybe the reason there's only one reheat lit is to do with:
F = (m dot * V)e - (m dot * V)0 + (pe - p0) * Ae
Where F is force and the rest of the equation almost equals more thrust than is proper and decent.
. . . err . . . yes, of course. WE knew that . . .