G'day Frank,

Reference the A4.
John Mauchline can produce a kit for a large A4 which I had originally seen flown by Manfred Bleck as a ducted fan. It flew well once up but was very marginal off the ground. I know that Brian Green bought it and fitted a turbine but I believe he lost it with a fire!! I am not sure of the size but my recollection is that it was about 1.5m long. If you give John a call I am sure he will be able to give you more information.

Russell.