Ian Jackson :
I've had a Surform plane for around 40 years. It was only used
occasionally, and I hadn't seen it for several years. Recently, I
realised that it was a good tool for what I wanted to do, so I dug it
out from where it was hiding. Then it suddenly dawned on me, "Is it
pronounced "sir form", or is it "sure form" (which is what I've always
called it)?

surf-orm in our family.

--
Mike Barnes