Airfix Avro504K - a bit ambitious with all those struts for a first attempt.
First balsa model was a Kiel Kraft FW190. It flew very well. So well in fact I had to put another loop of elastic in it to make it go faster and longer. It did, so I put yet another loop in. Got to the final turn, there was a big crunching sound and the fuselage was suddenly four inches long. B%gger!
Didn't fly either.