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Old 07-13-2012 | 03:28 AM
  #328  
njmheli
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From: ADDLESTONESURREY, UNITED KINGDOM
Default RE: Hangar 9 30cc P-47 Build Thread

Hi Guys.

Thought that I would give the pylon idea a go........Having bought the scale items from Gary at Aerotech Models,decided to use the standard kit pylons with a combination of some parts from Aerotech.
The pylon is plenty big enough to fit a "micro-servo" into........so I started to cut away.

I chose to cut out just aft of the fwd pylon former,just enough to get the servo in and leave enough room for "fingers" to do some work in there !!!( see photo ).....but left a thin "edge" of ply still attached to the plastic sides of the pylon.The servo was mounted using a couple of bits of spruce as you can see in the photo's.
I did some mod's to some of the parts from Gary and also cut away the bottom of the pylon to fit the "resin" cast bits in...............I deceided to use a thin brass tube as opposed to a "plastic" push/pull tube as shown in Gary's instructions,also this brass tube can be glued and bent into the correct shape needed to get a good "cable-run" in the pylon........
The wire that I use to connect the servo to the release mechanism is from a Fishing Supply Shop........"Trace-wire" ( Stainless steel,30lb breaking strain and covered in plastic....more than up to the job !!! )..I also use this in my "pull-pull set ups ".........
The choice of servo was to use the Spektrum DSP60.......will work on 4.8 to 6Volts easy,very small and has plenty of torgue and digital....not that you need it to pull the release !!! This servo is also programable via the "box" from Spektrum........so very easy to set up the servo "end points" / throw and direction..........

Please to report that all works perfectly............Give it a go !!!

The 5 photos below show the basic cuts etc and items.

I guess in all it took about 5rs to complete the pylon and bomb assy as you see in the next posts....

Cheers................Nick (UK).
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