Very conservative design and primarily as a test bed for oil control to the rotor, and multi-fuel tests. The rotor has a molybdenum spray. the head is nikasil coated. The original Aspin rotors were often lead-beryllium coated. The rotor is driven by a toothed belt, for ease of inspection, and because we thought to play with eliptic shaped pulleys to vary dwell, or implement Aspin's own variable speed rotor design from his 1969 patent.
|Drawings by Bob Tait
|Head and rotor(s) awaiting coatings
|Molybdenum sprayed rotor being ground
2021-2022: Lots of trouble with cam drive belt, now rises with bevel gears to head level
Still difficult to start, and will not rev properly
Verdict = "disappointing"
Back with the "young" engineer in Cumbria ...