Hi Stewart
I used to know Dick in Topcliffe, 666 Sqdn AAC in 1974/75. He flew Sioux, I flew Scouts. He used to build the most amazing gliders, apparently freehand, there never seemed to be a design. He built a ferocious crossbow out of odds and ends, again freestyle, and also demonstrated the sling (as used by David against Goliath).
My regards to your mother, (tell her David And Utee)
Boslandew