I am building this big H-13 together with the small 1/72 Bell 47. Sofar the booms are evenly fiddly to build and clean up.
The engine (Lycoming O-435) is quite nice, here it is in the begining stageswith the swash plate.
. by Theunis van Vuuren, on Flickr
There will be loads of pushrods, scat hoses,pipes and electrical wires I will need to make up from scratch.
. by Theunis van Vuuren, on Flickr
Theuns