New Highlander from SC

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New Highlander from SC

Postby yellow highlander » Tue Apr 16, 2019 8:33 pm

Former Vietnam helicopter pilot with a Just Aircraft Highlander with Superstol landing gear. Intend to put Dynon panel with ADS-B and auto pilot and do some serious traveling. Was told the plane was too slow for that and my answer is that I have spent the last 17 years sailing around the world at 8 knots on a 48' 90 knots is fast! Anybody in need of a great world cruising sail boat get in touch, as my boat is now on the market!
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yellow highlander
New Member
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Joined: Tue Apr 16, 2019 5:30 pm

Re: New Highlander from SC

Postby Clark in AZ » Tue Apr 16, 2019 9:28 pm

Welcome! Very Cool! Congrats on the acquisition, looks like a nice ride and your plans sound good. Oh, nice boat too! ;) Keep us posted on your progress and adventures. BTW, my oldest brother is a former Vietnam helicopter pilot too. Thanks for your service!

Building SuperSTOL Kit 512
Cave Creek, AZ
Clark in AZ
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Location: Cave Creek, AZ

Re: New Highlander from SC

Postby yellow highlander » Sun Jun 30, 2019 10:46 am

Have now finished putting in a number of changes to cater for long trips and my past (frightening) experience associated with going inadvertently IFR a few times and being lucky enough to live through it.

I have added a Dynon Skyview HDX 11" panel, roll and pitch servos and AOA. The first problem was putting in the panel, as it was a case of 10lb of crap in a 5 lb bag issue. To cater for the panel we fabricated a mount that angled the bottom of the panel out at the bottom which allowed the bottom to clear the structural member at the bottom of the dash. This had the added benefit of putting the panel a a great viewing angle for me.
Panel mount.jpg

The second problem was mounting the AOA/Pitot tube in the wing without major reconstruction. The answer was to remove the wing tip fairing and insert a the mount we fabricated into the forward wing tube and run the air lines down the back wing tube. The mount was machined from a block of aluminum and has three screws for holding the pitot tube. The middle screw forces the hole open enough to slide in the pitot tube, while the fore and aft screws are to tighten down the assembly for flight. The screws are used to loosen the pitot tube, which allows the tube to be pushed into the wing (to very short anyway) when the wing is folded to prevent damage.
Pitot Mount.jpg
wing tip.jpg

The last problems were to do with mounting the two autopilot servos because the aircraft is already covered. We decided to mount the pitch servo under the left seat and connect the push-pull tube directly to the bottom of the control stick. With the servo mounted under an aluminum plate (which also serves as the mounting plate for the ADS-B receiver and the transponder). I did not like the idea of putting the servo aft of the baggage compartment. First it would be difficult to work back there (I weight too much and am too big to fit easily), second inspection is a problem and the under seat access is great (I put a quick release pin in the seat attachment). Perhaps worth noting, I did not buy the connection blocks for connecting the servos as I thought a simple connector would be better. Less connections/fail points, lower cost!
Pitch servo.jpg

The roll servo is mounted under the turtle deck on the structural member using Adel clamps.
Roll servo 3.jpg
The capstan drive connects to the control wires and pulls in-line with the aileron cable going over the mount in a tray machined from nylon.
Roll servo 2.jpg
The capstan wire goes under the mount. The location seems to be the most direct connection to the ailerons thereby reducing SLOP to a minimum.
roll servo 1.jpg

The roll servo added a bit of resistance to the lateral movement of the control stick, so we added Spades to neutralise the effort. They work very well!
yellow highlander
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Joined: Tue Apr 16, 2019 5:30 pm

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