Page 9 picture 5 Quote " Cut a 400 mm length of .5mm natural thread to make the yard sling.Tie it to the centre of the yard leaving one tail about 250mm long and the other about 350mm long ".
can you spot the mistake. I know its a long time since I was at school and teaching methods have changed but surely even after metrication and decimalization 250 plus 350 = 600mm
Have cut mine at 600mm just to make sure

Current Build:-
[color=blue]Stash Avro Lancaster (Full Kit)plus some extra issues I picked up at a good price
[color=blue]Built:- Norman Catapult by Mantua,Roman Catapult by Mantua,HMS Victory,HMS Victory XSection,Focker DB1,Bismark,English Carronade Titanic Lifeboat,American Civil War Gatling,Hummer,Sopwith Camel F1,Occre Jupiter ,OcCre Wagon, Latina Arab Dhow, Eaglemass Orrery OcCre Rogers 119 [color=red][color=red]RB7,OcCre Missippi River Boat, Model Airways Fokker DR1
OcCre London L>C>C 106 Ugears Scrambler, Ugears Hexapod Explorer UGears Off-Road Vehicle