I have found the Roban heli door hinges to be a weak link as have alot of you.If you have tried to find replacements,its almost impossible.That being said,me and a machinist friend have redesigned the hinges using a pressed in metal hinge pin.They work very well and will not separate.Here is a link to them.
https://www.ebay.com/itm/164096736639
https://www.ebay.com/itm/164096736639






A lot of Roban parts have been out of stock for too long, MRC needs to get with it to keep these heli guys happy.
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