RCU Forums - View Single Post - CARF SPITFIRE ASSEMBLY and SCALE DETAILING
Old 06-15-2016, 03:29 AM
  #31  
krazy kanuk
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AERILON CONTROL INSTALLATION

Well I got through my first chemo and radiation treatment and I feel great. No sickness or tiredness yet.

I'm not a fan of two things that Carf wants you to do in mounting the aerilon servos.

First I do not like the Glass Fiber control horns. I had one break on my Carf 330SC when I accidentally hit the outside horn on my elevator. I replaced it with the Hanger 9 HAN 3615 Control horn and this system has worked great for me since. On my Krill after many flights I had the hole between the two fiber horns slightly elongate from the 4-40 bolt going through. This lead to some slop. So again I replaced it with a Hanger 9 Control Horn.

BUT I did follow exactly where Carf tells you to install the horns (1 inch in sideways and 1/2 inch down). There is a supporting block there that you drill through and it gives a lot of rigidity to the control horn assembly. I drilled the hole slightly undersize then tapped the wood for a 10-32 bolt. I used Locktite epoxy to hold it in place. The Philips flat head is countersunk and I will fill it in prior to painting and it will not bee seen.

I also was not a fan of the way the servo is buried deep into the top underside of the wing. This eliminates only 1/2 of the control linkage and does hide the control arm. But it puts it at a awkward angle for precise adjustment. On watching many videos of this plane flying, you can still see the control horns and part of the linkage, so I opted to not care that servo arm, the whole linkage and control horns would be seen.

I used the EXACT same servo hatches that came from my crashed Carf Extra 330sc. They still had the metal servo holders still attached.

I cut the servo hatch with my new HOT KNIFE. What a tool. as it does such an exacting job. I just lay a flexible ruler against the outside of the line and slowly cut away. Afterwards I followed Carf's advice and added the strengtheners between the upper and lower wing skins.

I'm using Savox 2270 Brushless servos for both aerilons.
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Name:	A HATCH REMOVED HOT KNIFE.JPG
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Name:	B SUPPORT HATCH PARTS.JPG
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Name:	C ASSEMBLED HATCH SUPPORT.JPG
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Name:	D CONTROL HORN.JPG
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Name:	E ASSEMBLED CONTROL HORN.JPG
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Name:	F TOP VIEW.JPG
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Name:	G SERVO ATTACHMENT.JPG
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Name:	H SAVOX 2270 BRUSHLESS SERVO.JPG
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Name:	I FINAL ASSEMBLY.JPG
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