Thank you for your replies
The hull is made from plastic, not fibreglass, the cabin has a waterproof switch on the back.
The hull is 50 inches long.
The mast height is approximately 78 inches long.
I've not weighed it, but it is fairly heavy.
The sails are nearly new and it came with B & C rigs as well!
The inside radio gear is well laid out (photo enclosed)
Its a lovely yacht, I contacted the Marblehead Yacht Register, but they said they couldn't find the number in their records.
Regards Paul