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Skymaster F-18 1/5.75 scale build/assembly video thread. F18

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Skymaster F-18 1/5.75 scale build/assembly video thread. F18

Old 05-29-2020, 03:38 PM
  #26  
FenderBean
 
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I was gonna mention that the other night but got side tracked all mine at less than half inch.
Old 05-29-2020, 07:50 PM
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Originally Posted by Ceeray View Post
I think you would have benefited a lot by putting a reaaally short servo arm for the flaps and installing the pushrod pushing through the trailing edge of the wing. That way you would have gotten a full movement range for the servo and mechanical lock for down or up , depending how much your servo´s angle range is.

Now you get 30 degrees out of your servo movement and also a long arm--> much more force needed.

I have done a couple of wings that way. Harder to setup but..
That's what I did on the primary flap. on the aileron flap the pocket is only the thickness of the servo itself so a setup similar to what I did on the primary flap wouldn't work.
I did move the ball down on the servo horn to get more resolution.
Old 06-04-2020, 06:25 AM
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Elevator on one side complete.
Old 06-04-2020, 06:32 AM
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Here are some pics relating to the elevator install.

Manual says 55mm and this is incorrect. I assumed it should be 25mm and this is correct. That measurement worked.

Angle head screws are the ones to use on the elevator. Button head are for the leading edge flaps. In order to get the servo arm close to the fuse a counter sink needs to be created on the servo horn.

Don't forget the washers inbetween all the bearings, servo arm and nut.

Manual talks about cutting a slot etc but the slot is already made and all lined up.
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Old 06-12-2020, 07:10 AM
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Elevator Redone. Airbrake Setup. Tank fittings installed.
Old 06-12-2020, 08:38 AM
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I learned this on my F-14 the stab mounts were stupid and not safe, using light ply for servo mounting makes you wonder what they are thinking. So when I did my f-18 like this I knew from the get go it had to be done. Plus you need to make sure you make the bearing on the servo arm parallel to the shaft of the stab don’t trust the mount angle in the fuse, they can be off a lot.
Old 06-14-2020, 08:43 AM
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Originally Posted by FenderBean View Post
I learned this on my F-14 the stab mounts were stupid and not safe, using light ply for servo mounting makes you wonder what they are thinking. So when I did my f-18 like this I knew from the get go it had to be done. Plus you need to make sure you make the bearing on the servo arm parallel to the shaft of the stab don’t trust the mount angle in the fuse, they can be off a lot.
Thanks Keith! I appreciate your input!
Old 06-14-2020, 08:44 AM
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Rudders installed. Wiring bundles complete from the rear.
Old 06-14-2020, 10:43 AM
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probably too late, but I always replace their ball ends with dubro hvy duty and then use titanium rods. May want to look at my build on the rudder stuff as well.

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Old 06-17-2020, 06:32 AM
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Hot Section complete!

Old 06-17-2020, 07:03 AM
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Dear god what an easier motor install compared to mine.
Old 06-17-2020, 07:55 AM
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Originally Posted by FenderBean View Post
Dear god what an easier motor install compared to mine.
HAHA! rear mounted turbines i'm assuming? This mid mounting is slick!
Old 06-24-2020, 06:38 AM
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Tanks, Tanks, Tanks!
Old 06-28-2020, 06:48 AM
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Rear End is complete!
Old 07-06-2020, 06:25 AM
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Old 07-06-2020, 07:39 AM
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Everyone is using my idea on the canopy, trend setter lol nice work I recommend putting longer pins on the front the stock are too short and can pull out.
And if you havent figured it out already you have to induce some slop in the open/close or the it doesnt work correctly or at least mine didnt.

Last edited by FenderBean; 07-06-2020 at 07:43 AM.
Old 07-07-2020, 06:21 AM
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Originally Posted by FenderBean View Post
Everyone is using my idea on the canopy, trend setter lol nice work I recommend putting longer pins on the front the stock are too short and can pull out.
And if you havent figured it out already you have to induce some slop in the open/close or the it doesnt work correctly or at least mine didnt.
One thing I found that I really like about using servo/linear actuator for both lock and the opening is I found I can adjust the curve in my 28X to compensate for the "slop" needed for it to work. So I can make the lock go too far and than back off when needed. I'll include it with one of the videos when it's all complete but I understand what your saying.
Keith, did yours have the 3 side hooks as well on each side?
Old 07-07-2020, 08:01 AM
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Originally Posted by Canadian Man View Post
One thing I found that I really like about using servo/linear actuator for both lock and the opening is I found I can adjust the curve in my 28X to compensate for the "slop" needed for it to work. So I can make the lock go too far and than back off when needed. I'll include it with one of the videos when it's all complete but I understand what your saying.
Keith, did yours have the 3 side hooks as well on each side?
Yes it did, but I removed them, I already had to butcher the cockpits enough to install them just didnt feel like do even more for the hooks
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Old 07-10-2020, 06:05 AM
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