[Geek44]

Thanks mate, but when you look really closely, it's not as neat as it seems. This is the first attempt at seriously rigging a biplane and I'd probably do it differently the next time...perhaps closer to the method you've described. I measured the distances for lengths with dividers but you need something to 'hold' after you anchor the first end. Cutting off that extra 'holding' length has left the ends a bit untidy, especially where access was tricky, eg. underneath the upper wing. The 'experten' at my club use stuff like lycra thread that has some stretch. But there's also been talk about ambient temperature affecting the taughtness and humidity as well. Sprue is impervious to those things. One guy said he had a tightly rigged model implode on him because cold weather contracted the rigging so much. Maybe a DH. 1 which was basically sticks and wire with an engine and wings attached...a trip to my 'local' haberdashery may be in order next time.