SonexBuilders.net

This is a question for the masses of Sport Trainer builders/pilots. Which means I hope at least John Stewart and Joe Norris will answer me.

It looks like there is a lot less travel offered in the sport trainer configuration than the side flap handle configuration. Is this true, and is it to make the airplane more docile, or is there interference issues with the tank sump? See picture:


C07 view J-J shows the flap handle just to the right of the centerline. My weldment seems to put it left of the centerline and the handle mount is not right up against the phenolic block. Is my weldment bad or is that a plans update that has not happened yet?

In detail E, the alignment of the flap detent block is shown. If I align it like shown, the flap handle is not pushing against the detent block. I have to move the detent block left a bit to make a positive contact.

The plans say not to drill the holes in the spar tunnel until you verify you can hit all the detents. How in the heck do you do that, is there super duct tape technology that I am not familiar with?

So far lots of questions, but here is one contribution. Do not drill the aft most 3 holes in the flap detent block until it is located by the forward two rows of three holes. There are already holes in the aft part of the forward Z which drill into the big extrusion. Wait and pick up the holes that you intersect.

Bryan Cotton wrote:It looks like there is a lot less travel offered in the sport trainer configuration than the side flap handle configuration. Is this true, .

Isn't the flap position angle on the trainer just located lower, and closer to the pivot point (torque tube) than on the standard sonex? If it is, it would require this part to be shorter on the trainer. Not sure but the actual flap travel may be the same?

Steve 892

Steve,
Did not realize that. Thanks!

Steve is correct. The flap travel is the same, the center is a shorter radius than the left side.
I installed the detent (C09-16) as the plan indicated and then bent the handle to fit which is a slight "S" curve to the right.

Thanks Bill! The S-curve sounds like a good alternative to remaking the part.

Bryan,
I also bent the handle to get it to fully set in the notches. I just put a slight bend to the right just above the spring and bolt.
I did not initially plan on having the center controls. So when I did my seat pan I had the hinges covering where the center bracket goes.
So I had to modify my bracket to work with as many existing holes as I could.

These pictures are before I bent the handle.



This is after I bent the handle. It is hard to see the difference.

John,
Your parts look nicely made. Thanks for posting the pictures! I am working the hydraulic brake mount now. I notice you don't have the detent installed. I was going to ask if you set it up so it just misses the front stop.

Hi Guys,

I am also doing the center sport controls. Does anyone have pictures of where they ran their brake lines from the master cylinder?

Maybe I am slow but I don't see in instructions on that.

Pete

Pete,
I think the instructions were on the sheet that came with the hydraulic brakes.

Bryan, I am waiting to install the bake notch until I am sure where I want to locate it.