CARF Joker build thread
#928
My Feedback: (53)
So go out and trim your plane for your situation…
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Afterburners (07-19-2021)
#931
My Feedback: (1)
I flew my Joker three times since last year. It had a K70 in it and flew perfectly. I have not quite got the hang of landing it yet. That will come with a few more flights.
I decided to replace the K70 with a P100-Rx because I wanted the K70 for another jet.
I noticed that Dave W. has 1/4" (6mm) shims between the turbine and mounting plates, I check mine and found this was also needed to center the turbine in the thrust tube.
I also found that former the mounting plates are attached too was glued in crooked, but not enough to matter, because I can get the turbine on center line.
I got a cross hair laser by Bosch and started used it to check the alignment of things. (new tool, new ways to get in trouble)
And I found the thrust tube is not parallel with the turbine mounts in the fuselage. The back of the pipe appears higher than the front. It looks like up-thrust.
I have not changed the thrust tube mounting and there really is only one way it can fit in the fuselage. Perhaps the angle is on purpose? The airplane flies just fine the way it is, thrust adjustments do not affect the pitch.
Has anyone else found this condition?
I would think the mounting plates are a 0-degree incidence. But maybe not, they could be off. Are the stabs at 0-degree incidence? One thing that I miss are drawings for the model airplanes. CARF does a great job making the models but there is nothing to check them against.
I decided to replace the K70 with a P100-Rx because I wanted the K70 for another jet.
I noticed that Dave W. has 1/4" (6mm) shims between the turbine and mounting plates, I check mine and found this was also needed to center the turbine in the thrust tube.
I also found that former the mounting plates are attached too was glued in crooked, but not enough to matter, because I can get the turbine on center line.
I got a cross hair laser by Bosch and started used it to check the alignment of things. (new tool, new ways to get in trouble)
And I found the thrust tube is not parallel with the turbine mounts in the fuselage. The back of the pipe appears higher than the front. It looks like up-thrust.
I have not changed the thrust tube mounting and there really is only one way it can fit in the fuselage. Perhaps the angle is on purpose? The airplane flies just fine the way it is, thrust adjustments do not affect the pitch.
Has anyone else found this condition?
I would think the mounting plates are a 0-degree incidence. But maybe not, they could be off. Are the stabs at 0-degree incidence? One thing that I miss are drawings for the model airplanes. CARF does a great job making the models but there is nothing to check them against.
#932
Thread Starter
The thrust tube angle is correct for thrust line. Then the turbine is set parallel to the pipe. (May need packing-on my P-100 the short mounting flange allows the turbine to be ‘tweaked’ to position
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DenisFerrari (01-01-2022)
#936
Has anyone fitted Uni lights on the Joker, I’d like to fit a set, but not sure on how to fit the wing lights, being a one piece wing I can’t see how to get the lights installed in the tips and then get the cables through to the centre. Any tips? Thanks Tom.
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DenisFerrari (01-02-2022)
#940
My friend replaced his JM100 with an X120 in his Joker. It is awesome and didn't add any weight.
I've never seen a jet have such a short take off roll. It immediately can go vertical while accelerating. The landing and slow speed flight are not altered.
I was impressed.
I've never seen a jet have such a short take off roll. It immediately can go vertical while accelerating. The landing and slow speed flight are not altered.
I was impressed.
#942
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DenisFerrari (10-14-2022)