Aeroconversion brake performance?

[Bryan Cotton]

Thanks for the video. I'm pretty sure I'd notice that, but I'll look for any looseness this week.
Rusty (hate bleeding brakes)

I can tell you we checked that wheel with weight on it and it seemed perfect. The reason I figured it out was my brakes were poor and there is a downhill from the pump to my hangar. I shut down the engine to eliminate thrust and I could hear unhappy bearings.

[pfhoeycfi]

The issue I seem to be having is that after having bled the brakes many times I find a bubble or two soon after, half inch or so in length, in the tubing near the outlet of the master cylinder. My tubing seems good all around, not quite sure why this is happening. When bleeding the brakes I pump up from the brakes and overflow into a jar at the MC.

[Area 51%]

Bryan....did that take care of your shimmy?

Peter....do you have a fluid reservoir? If not, I can send you a picture of what I had. Never had bubbles after I installed it.

[pfhoeycfi]

Bryan....did that take care of your shimmy?

Peter....do you have a fluid reservoir? If not, I can send you a picture of what I had. Never had bubbles after I installed it.

Nothing more than the fluid that in the aeroconversion master cylinder.

[Bryan Cotton]

Bryan....did that take care of your shimmy?

Nope. I still get it if my touchdown isn't perfect. No issue on grass and full stall landings straight ahead seem to be the best approach.

[WaiexN143NM]

Hi bryan,
a few things that may be causing your shimmy

1) are the bearing races fully seated in the wheels?
2) have you tried glass beads in the tires ?
3) affixing something to back side of gear leg i.e.
oak wood strip, or we used the flyboys wood gear strips wrapped w glass.


we had some shimmy but no more. good luck on your phase one flying.

best,

michael.

[Bryan Cotton]

Answers in bold, in the quoted text:

Hi bryan,
a few things that may be causing your shimmy

1) are the bearing races fully seated in the wheels? They are now! As reported in my thread.
2) have you tried glass beads in the tires ? I have not. On takeoff, at high speed and with weight on the gear, I get no shimmy or unbalance.
3) affixing something to back side of gear leg i.e. oak wood strip, or we used the flyboys wood gear strips wrapped w glass. I've not tried this yet. It is a possibility.It will be a pain because that is where my formed brake lines are.


we had some shimmy but no more. good luck on your phase one flying.

best,

michael.

[Tnhelm]

I would like to see the modification to the master cylinder reservoir to help eliminate air bubbles.
Tnhelm
OneX 0137

[builderflyer]

Bryan....did that take care of your shimmy?

Peter....do you have a fluid reservoir? If not, I can send you a picture of what I had. Never had bubbles after I installed it.

Nothing more than the fluid that in the aeroconversion master cylinder.

A simple way of obtaining additional master cylinder capacity is by adding a "standpipe" utilizing hardware store bought parts as shown in the attached photo. The standpipe screws into the hole where the plug used to be and in addition to the increased capacity, it allows for a bit easier monitoring of the fluid level.

Art,,,,,,,,,,,,,,,Sonex taildragger #95,,,,,,,,,,,,,,,,,Jabiru 3300 #261

[Bryan Cotton]

If only that standpipe was transparent...