Wasp frame questions

Hey there ladies and gents,
I have a few questions about a sidecar im looking at present . It is advertised as a RT15A , is this correct if so any ideas what year it may be. Any help would be good.
Cheers Mic Grady

this is a RT15 GP. built in 1976. think you will find the A stands for airbag suspention.

the a in rt 15a means that it wud of originaly been fitetd witha norton engine where as if it was a b it wud of been a yamaha if the following letter is z taht means its a airbagger

Thanks for that mate, just shows how much i know, f**k all.

haha i was tought by terry parsons who was carrying a large bottle of cider at the time so it mite nt be all factual ahhahaha

Dont matter wat year it is it will still destroy yer wallet week in week out!!!