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1/6 SCALE TWIN OTTER BUILD

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1/6 SCALE TWIN OTTER BUILD

Old 08-04-2011, 03:31 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

here is some more pics of the wiring getting done for the center section...these are the center wing section outboard of the nacells...this is the wiring that goes out to the aileron servo, wing tip nav and strobe lights and wing landing light.i drilled the hole in the centerline nacelle bulhead that runs fore and aft for the wires to pass through before it was installed.glad i did that before hand.i was going to go to my local radio shack to look for a center plug today and saw that they are no longer there..oh well..time to find another one..wish it would cool off a little so i can get some sanding done...to the point where it is holding me back...enough of 110degrees
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Old 08-04-2011, 03:34 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

HI Gene; I made the nose hatch to open and put my batteries and about 1 1/4 lb of weight in the front nose in front of the nose gear former. With the OS 200 it was right on at about 27% with the Evolution engines and their batteries it is slightly nose heavy- with the 1 1/4 weight removed the CG was about 37% (too rearward ) which caused the plane to be very very responsive to rudder but still quite tame on pitch which is not what I would normally expect.- suggest using high expo on the rudder as it is quite large . Both my prototypes weighed 35 and 38 lbs for reference keep up the good work you will really enjoy the plane when done cheers John
Old 08-04-2011, 03:48 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

hi john. so far this has been a really nice build...you have a really nice design here..maybe you will hit the lotto to get the SYSSA"s....lol...they really do fit very well in the cowlings..just like they were made for this plane...thanks for the info on the CG..as i go along i am trying to keep the airplane where is will sit lightly on its nose without having to add any weight so i know the CG is close..so far its been working well
Old 08-04-2011, 05:22 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

Gene, beware of using tye-wraps, they can chafe through the wiring quite easily. Lacing is what is recommended for full scale wiring, although I never do that for my models!
Old 08-04-2011, 05:33 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

The Canadian Dollar tanked the last couple days, I should have ordered all my sheet wood! John, I'm still waiting on sneak peaks of the Caribou!!!
Old 08-05-2011, 03:52 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

Hi Lins; the Caribou is in its very early stages of development. I have the fuselage and tail designed complete the wings are only about 1/2 done. This is a much more complex undertaking than the Twin Otter as it has retracts- convoluted flap layout and huge rear hatch and ramp that must be worked in to the model. As usual hank is proceeding along quite nicely on a prototype while I finish drawing and working full time I have only just begun to cut some on my prototype the pictures are of Hanks from a short while ago cheers John
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Old 08-05-2011, 04:15 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

John, that looks great! I would love to be kept in the loop as much as possible with the progress. If it was a Buffalo I'd help fund the project , but I guess RC wise, the Caribou and Buffalo are almost identical.
Old 08-05-2011, 04:19 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

hey john..that caribou.looks like another great design.i bet simco will want a model of that one.looks like another great project...anyway here is the wires that go through the center wing section....all labeled and i know where they go
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Old 08-05-2011, 05:53 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

John, I showed the link to my buddy that works on the Buffalos, he said he'd probably take a kit! I guess I'd probably end up building it. So, two caribou kits, please!!!

Edit: ok, enough hacking Gene's thread
Old 08-05-2011, 09:19 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

Did someone say Caribou?
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Old 08-05-2011, 10:12 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

what about a 1/8 scale C-2a Grayhound? wing span 120.87" length 85" if some one made a short kit for that i would buy 2
Old 08-06-2011, 07:29 AM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

Looks like fun to figure out how to build that wing.
Old 08-06-2011, 09:58 AM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

My Caribou is now flying in a shopping mall in Plano,Texas. The gull wing needed a hardwood one piece spar. didn't have a band saw to cut it. Modified to a straight wing and flew it until I got bored and needed funding for a new project.
Old 08-09-2011, 06:25 AM
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Default RE: 1/6 SCALE TWIN OTTER BUILD


ORIGINAL: John La Belle

Hi Lins; the Caribou is in its very early stages of development. I have the fuselage and tail designed complete the wings are only about 1/2 done. This is a much more complex undertaking than the Twin Otter as it has retracts- convoluted flap layout and huge rear hatch and ramp that must be worked in to the model. As usual hank is proceeding along quite nicely on a prototype while I finish drawing and working full time I have only just begun to cut some on my prototype the pictures are of Hanks from a short while ago cheers John
Sorry to take space from the Twotter build - just have to say keep up the great work John! I have the 1/6 Otter kit at home and will with little doubt order the Caribou once you have it available for sale as a kit.

Old 08-09-2011, 09:19 AM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

trying to beat the heat...got some sanding progress done on the wing tips when it was still early and what you would call is cool.(by our standards)lol...i am calling uncle.enough heat..time to move to some more indoor work. the pic are of the aileron outboard sides where they meet the wingtips
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Old 08-09-2011, 09:30 AM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

this is where they are with rough sanding in to get them close...still need a final fine sanding to get them to proper fit, fiberglass and paint..getting closer
Old 08-09-2011, 09:32 AM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

It was only 108 under the shed for flight training yesterday. 104 when I left at 730. Need to swap engines. first one is broke in.
Old 08-09-2011, 11:54 AM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

Those pieces look nice, even if the final sanding isn't done yet. Our dollar is going up, I might be able to buy my sheeting soon! Fingers crossed.
Old 08-09-2011, 04:03 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

this thing does require a lot of sheeting..eats it up in a hurry
Old 08-09-2011, 04:05 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

SIMCO,

Is it in Collin Creek Mall?

Jake
Old 08-09-2011, 09:40 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

I couldn't tell you to be honest. Guy bought at the Greater southwest swap meet 2 years ago. He had antiquties and odd ball shop some where in that area. Going to hang on the ceiling. Has the gear and servos in it. I had 91's on it on it will need the airbottle and gear accessories.
Old 08-10-2011, 02:50 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

perfect sized adapters to accomidate this engine/prop combo...fits the 3 blade prop just right
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Old 08-10-2011, 02:55 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

the engine mount bolts for the standoffs are a little behinnd the firewall. so in order to get the correct holes drilled for the cowling i had to make some spacers to hold the firewall off the table to make sure the cowling is drilled flush with the firewall
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Old 08-10-2011, 03:08 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

this is the latest pic with the cowl mount screws installed, engine inside the cowl, spinner and cowling centered. all fit really well. next is to cut the cowling for the exhaust. still thinking about maybe a scale turbine looking exhaust.....maybe
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Old 08-10-2011, 06:03 PM
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Default RE: 1/6 SCALE TWIN OTTER BUILD

Nose gear showed up last night. I will try mounting it tomorrow without the ply wood shim and take a pic. gblas, it looks like you used more plywood than the plans/appendix called for if I remember correctly.

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