Thanks guys, I stopped short of the whole question because it was the first statement I didn't understand but here it is...
The fore and aft distance between the two main wheels and the single tail wheel of an aircraft is 8m. The unloaded weight of the aircraft is 20kN and its centre of gravity is 0.5m behind the main wheels. Calculate the force on the tail wheel and on each main wheel.
It sounds like a fairly simple forces question but I wasn't sure if I was reading the 'fore and aft' bit wrong??
Thanks again