Coincidence – I was at Yeovilton only yesterday and found in their shop a copy of the 1992 book “The Redwing Story” by John Lane.
There is very brief mention in chapter 14 of the fact that Redwing were asked by Magnesium Electron (in 1947) to build the Satellite – according to Wiki it was built in Purley Way, Croydon but the book has a photo of the complete tail “hanging from the roof of the Redwing factory in Bensham Lane, Thornton Heath” and there looks like a wing in the background too.
Roger Smith.