ORIGINAL: LGM Graphix
I've seen this debate many times, I have also seen people turned away at jet events. I think if we followed the basic definition of Jet Propulsion it would clear many things up.
First of all, (and this is my opinion only), a JET rally is for models of ''JET aircraft'' By this logic, it is my personal opinion that turboprops do not belong any more than turbine powered helicopters belong. Lets think of it this way, IF somebody were to host a Turbine powered helicopter event, and you showed up with a Bandit, would you expect to be allowed to fly simply because it is turbine powered? I think not.
We lovingly refer to our model turbines as Jet engines, but for the purpose of a jet rally, it is for Jet aircraft. Our turbines are more correctly Gas Turbines. Jet propulsion can be achieved via high velocity exhaust gasses, or the expulsion of a fluid (for all intents and purposes lets remember that air is considered fluid). This means that ICDF, EDF, pulse jet, or turbine power is accepted as a form of propulsion in a model representation of a JET AIRCRAFT.
Whether powered by a gas turbine or not, a tucano, turbo beaver, turbo raven, etc is NOT a Jet Aircraft, it is still a propellor driven aircraft. While very cool, and possibly acceptable for a noon time demo, it is no more a JET aircraft than a turbine powered helicopter.
When I go to a Jet event, that is what I'm there for, Jets, it's not that I don't like or appreciate other Gas turbine powered aircraft, but there are hundreds if not thousands of events across the world where those models will fit in.
Remember, you are asking about attending a JET rally. Not a Turbine rally. It's no different than attending an electric event like SEFF and hoping you could fly your turbine powered or internal combustion engine powered aircraft. Not going to happen.
In the spirit of comraderie, I suppose it would be up to the CD's discretion, but in actual fact, you are putting the CD in a very difficult spot by asking if he will allow your non ''Jet'' aircraft to fly, even if it WAS powered by a gas turbine. It's not fair to put a CD in that position.
Some have claimed that a tucano can fly as fast as many jets, and while I believe that to be true, so can many hotliner electric gliders, so can a QM40 pylon racer, so can many electric pylon racers, would it be acceptable to fly those at a jet event simply because they can keep up?
Stay in the spirit of the intended event and fly aircraft which the event is put on for. Jet rallies are for Jets, simple as that.
This of course is one mans opinion and I do appreciate all forms of flight, so don't get me wrong, I'm certainly not knocking somebody else's project, just expressing my opinion as a past CD, as well as an attendee of events.