Yes they do. Don't know about a helicopter.
This place is awesome! I know they don't do much with nitro and they don't allow nitro cars on there track at all anymore. I wish they still had one day a week or something for the Nitro. Places 10 times better than going to HobbyTown or any corporate hobby store
I am not sure if they work on gas or nitro powered kits. I would give them a call and if they don't they probably know someone who does.
I bought both my gas powered R/C's here they will work on them for you if you need help. You may want to give them a call about the helicopter.
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