Hi, I picked up an owner from the Torquay heliport about 2 weeks ago. Situated within a go-kart circuit. Very nice people who run it, £10 landing fee, and only about 3.5 - 4 miles from Dartmouth. Just watch out for the youngsters racing around as you approach!! Wish I'd had the camera with me.
There is also the Brittania Naval College in Dartmouth with lots of ground, but they were not there 2 weeks ago. Worth a try though.