Hi,
I recently bought a Twister (Multiplex) with Lambert turbine. On this airframe I put until now around 40 flights. The Lambert turbine is awesome, and the twister flies quite well (after some major modifications done by the previous owner).

What you should not forget is that those things must be flown like “true” jets, so they fly fast (and land also fast), you cannot make too tight turns and aerobatics and you have to consider the turbine spool-up time.
Here it comes the problem: those planes need a relatively big airspace to fly, but they are also so small that you have to keep them as near as possible if you want to see them…
I therefore would go for something bigger if possible.

Considering that I have flown only the twister bud I have seen live a Twinjet (with retracts) I would go for one of those because their simplicity. Simple to build, ready to fly in a couple of hours and relatively cheap. There is also a lot of experience on those airframes, therefore you can find a lot of precious hints for the building and set-up.
For the beginning I would also forget retracts and scale stuff. Go for something which allows you to fly a lot and avoid all possible sources of problems.

If it has to be scale I would go for the Aeronaut Panther (but it requires a lot of work, I followed the building of one of them) and the Viper of Schreiner as there is some “literature” on the turbine conversion.


Regards
M