Dear contributors on this thread. I am Gerd from Germany and I own a Douglas Aero 500. I bought the bike 2 years ago in running condition. Unfortunately the failures became larger and I stopped working on it. Reading these pages encouraged me using the Corona time for doing a new start. Many thanks to all contributors. It is nice conversation on Douglas Aero. Especially the questions from Eric were very useful in combination with the answers. They showed a wide range of problems, which I detected also. Don't be surprised, when I am coming with with new questions. I am stuck with the gear box now.
Best reagards
Gerd

Hi Leon how about this one Daren

Nice one Daren. I think a couple of years post-1913: an obvious pre/post 1914 difference is the rear stand pivot, and in the wartime photo the stand pivot is below the rear axle, suggesting 1915-on. 1914 and before the pivot is actually in the chain-stay tube.

Here in Australia we use Dec 31, 1918 at the veteran cutoff date, so we don't worry so much about the 1914/15 differences. More important in the UK!

Cheers

Leon

Hi guys thank you for your help.
Eddie my Flys frame number is 1207/6 not sure if is an early or late one, but it does look like someone has been messing with the back wheel in the past .

Cheers kevin

Artur,

A guide to the frame/engine/gearbox numbering can be found here:

https://www.douglasmotorcycles.net/aa-files/html/identify-part1/veteran3.6.htm

-Doug