Shinn Brake Parts Needed

[DanBrown]

My brake adjusting screw/adjusting wedge broke on the left side. It has been welded temporarily, but I really need to replace the shoes, linings, adjusting wedges and screws on both sides.

Are parts available and where?

Would it be better to replace the whole assemblies (assuming they are available) or upgrade to Cleveland brakes?

Is there an STC for Cleveland brakes on the prewar B models?

Thanks in advance for you inputs.

[Robert Lees]

Re: Shinn Brake Parts Needed

Have you tried Skybound or Donna Losey to seee if either of them have the parts you need?

Donna is at [email protected]

Skybound is at 770-446-6797, Jim Greene (owner)

[DanBrown]

Re: Shinn Brake Parts Needed

Have you tried Skybound or Donna Losey to seee if either of them have the parts you need?

Donna is at [email protected]

Skybound is at 770-446-6797, Jim Greene (owner)

Thanks, Rob. I'll check those out when I get back from Vermont next week. Dotty is vacationing there this last month, so I missed getting to visit you and the tribe in OSH this year. Maybe next year..

[OldBits2]

Re: Shinn Brake Parts Needed

donna and classic aero are at 480-650-0883 for SHinn Firestone parts.


On another issue: HELP!

Several years ago at Sun N Fun there was a group of folks selling "aluminum" taylorcraft spars. Like d&D services or something later. I understand the operation was bought and moved to Florida, maybe a Patrick relative.

I have need to discuss some other business with these folks in that venture and would appreciate any contact information, telephones, or other like addresses or name so that we can contact them in the near future.

Are there any folks with ideas that can help me with this?


480-650-0883 Doug

[3Dreaming]

Re: Shinn Brake Parts Needed

Her ya go! http://www.de-aircraft.com/

[N5002M]

Re: Shinn Brake Parts Needed

Dan,

I'm working on putting hydraulic brakes in my BC12D using Groove master cylinders and Cleveland 30-55 brake assy's. I'm still dealing with the tappered axle dilema but it's looking like a spacer sleeve should work ok. There is also a specific Cub (I believe it's an Atlee Dodge) 1 1/2 axle that slips right over our 1 1/4 tappered axle. I'm still researching that. I haven't started any approval process but I will keep you apprised of the progress.

[kcm]

Re: Shinn Brake Parts Needed

Tribe,

Input requested on converting F-19's to hydraulic brakes. Alaskan Pilots who have done this or know of someone who has please contact me.

Ken McCormick
907-952-0357 cell
Indian, Alaska

[astjp2]

Re: Shinn Brake Parts Needed

Dan,

I'm working on putting hydraulic brakes in my BC12D using Groove master cylinders and Cleveland 30-55 brake assy's. I'm still dealing with the tappered axle dilema but it's looking like a spacer sleeve should work ok. There is also a specific Cub (I believe it's an Atlee Dodge) 1 1/2 axle that slips right over our 1 1/4 tappered axle. I'm still researching that. I haven't started any approval process but I will keep you apprised of the progress.

Wont work, the bearing spacing is like 8 inches between them, the cleveland is like 3.5" I made an adapter that went over the entire assembly....Tim

[swoeric]

Re: Shinn Brake Parts Needed

i like your set up for existing axles. I am debating about building all new ones for mine. do you plan on pursuing a stc for this type of installation. or selling copies of your handy work.

[astjp2]

Re: Shinn Brake Parts Needed

After the fuel valve, I will probably do the brake adapters and pedals. Getting the STC is easy, its the PMA that is a killer. I am held to the same standards as Boeing. Tim

[Pearson]

Re: Shinn Brake Parts Needed

Tim,

I am not sure if the photos were of your set up or Erics. But if you move the centerline of the wheels outward you will have to do drop tests.

Also, since the disc brakes you are attempting to install will have more brake energy than the original brakes, you will have to submit a test plan to show that the torque plate and it's attaching mechanism will be able to absorb that amount of brake energy PLUS 50%, since CAR 4 specifies a minimum 1.5 safety factor.

Regarding the brake pedal arrangement, have you computed the mechanical advantage of the setup in the photo? As I am sure you already know, CAR 4 requires the brakes to be able to hold the aircraft at max continuous power. Without any measurements, it is difficult to tell exactly, but it appears the pedal pressures would be quite high in order to have the brakes meet that specification. I forget the number, but the FAA puts a limit on the amount of pedal pressure required on the brakes to hold the aircraft.

I am just mentioning all of this because I would hate to see you do all this engineering before hand and then get shot down when you try to get it all approved.

[astjp2]

Re: Shinn Brake Parts Needed

Pearson, you are way overthinking it, its just like a J-3 installation and it wont flip you on your back with the dual puck clevelands they use, this is single puck. Most J-3 drivers think the dual pucks are way too sensitive and many have been flipped over trying to get in short.... The pedals are from a pacer with modifications to clear the firewall and H column with full rudder deflection...master cyliders are clevelands from an F-21 (10-5 and 10-19)and the outside of the tire is only 1/4" farther out.

The ACO was worried about side load on the gear attach fittings not a drop test.

I also dont think that many of the Shin's out there can even do a runup without standing on the heel brakes and they still let go, even when adjusted. These hold 100 HP with a 75" Seaplane prop and 8.50's or 26" goodyears. The airplane slides and the brakes hold. Tim

[Pearson]

Re: Shinn Brake Parts Needed

Tim,

I guess that shows the difference in ACOs. Many years ago I was trying to get approval for disc brakes on my plane. After a LOT of money and time I gave up. I was just trying to point out some of the problems I ran into so you didn't pour money and time into it for nothing. I hope you can get it all approved. Good luck!

[NY86]

Re: Shinn Brake Parts Needed

Cubs, some Ercoupes, and other planes that came originally with Hayes/Goodrich expander tube brakes use the double piston Clevelands because they are a better fit for the low pressure, high volume master cylinders used with the originals, or the Scott style heel brake masters.

[astjp2]

Re: Shinn Brake Parts Needed

Most of the STC's required the scott master cylinders to be retrofitted with the high pressure adapters, just from what I have seen. Tim