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Old 04-19-2005 | 03:21 AM
  #60  
randykrul
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From: Concord, CA
Default RE: Turbine Enforcer

Since this post started, I ordered an enforcer and have it well on its way. I have a JDE 54 turbine, springair retracts, Eurokit struts, Intairco wheels and brakes. I have operating gear doors. I extended the nose 6 inches. There is a 50oz dubro fuel tank over the CG and I will probably put in a 12 oz. header tank, should be good for 8 - 10 minutes, as I probably will fly half throttle most of the time.
I have a few concerns, which I hope I have fixed plus I need to decide on a couple of things before finishing.

Concern 1. I heard that the enforcer is prone to flutter. ( I am using elevons ) I made the elevons slightly thicker than the trailing edge, the linkage will be slop free and I am using strong servos. I will also seal the gaps plus put balancers on the elevons.

Concern 2. Since I extended the nose by 6 inches I am wondering about the CG. All of the calculating charts that I see only deal with the wing MAC.

Concern 3. I have the angle of attack pretty muck the way the kit is, but the gear are not as long. I hope this works.

Decision 1. Should I put on canards? Should they be fixed or functioning? Good idea or not?

Decision 2. Should I install a speed brake? Top mounted or belly mounted? I am looking at the thick airfoil and thinking the speed brakes may not be needed.

Decision 4. I notice a lot of variations to the fins shapes and sizes. I have not cut the rudders out as I am deciding what, if any shape to make them, or does it matter?

I am also considering making tip fins, like the Viper. Is there any advantage to this?

The problem with bashing a kit, is all of the unknowns being thrown in. This will make for a stressful maiden flight.

It sure has been fun building this model as you can install all of the mods as you build. I have no idea as what color scheme I want, but the time is approaching.

Any helpful ideas will be considered and appreciated.

Randy
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