Define AUW - help needed?

[Scotty 1]

Could it be the weight that is allowed on the surface of the aerodrome due to pavement strength etc? That is YXXX maximum allowed AUW of 600kg due to surface strength........ultralight ok larger plane if it's weight at the time is only 600kg ok but if at MTOW no. Is this the context you want the definition for Vev?

 

Cheers Scotty