World Models Ultimate 120 ARF Question
 

Hello

Just putting together the 120 ARF from World and have come across a discrepency in the plan booklet. In step 13, the lower photo shows the engine installed position at 100mm or 4.5 in. However the very nice, pre-drilled engine mount is 115mm long!?

Has anyone run across what the actual firewall to spinner back-plate distance is suppossed to be

Cheers

Dave