Telltale Silk

I finally threw in the towel with leech flys that were coloured, and went with white.

The coloured ones look nice, and are easily available -- just cut some light spinnaker cloth into the shape needed.

Thing is, I could never make them out clearly enough while sailing down the far bank of the pond... They had to be white. Bizarrely, I could not source light white spinnaker cloth, and hence the delay -- I had to have silk. Have you tried to find 'airframe covering' silk now that everything is 'RTF' and no one actually builds aircraft models like the old days? Larry Robinson kindly helped me out!

The downside of the silk is that, within a few days of racing, they become tatty and start losing their threads...