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Post by smoothmat on Aug 30, 2011 22:19:58 GMT -5
What kind of hydraulic brakes are people running on there sonerai's.
I have mechanical azusa at the moment. I ordered the hydraulic kit supplied from GP on the way. Should be the easiest to retro in. Just wondering what the reviews were on this brake kit also?
Matt
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pttim
New Member
Posts: 30
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Post by pttim on Aug 31, 2011 10:26:44 GMT -5
I'm using Cleavland 30-9 on mine. I know Gaston installed a set of GP hydraulic brakes, could search the Old Sonerai.net for his comments. Tim
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Post by martinroy6100 on Aug 31, 2011 17:36:25 GMT -5
Matt: I have Tracy O'Brien's brakes on my plane and found them to work great. I know they are more expensive than GPAC, I cannot say how they compare as I have not tried Steve's, but if I had to do it over again I would stick with o'brien's.
Martin Roy N61QC Chehalis, WA
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Post by splischke on Aug 31, 2011 20:14:58 GMT -5
What kind of hydraulic brakes are people running on there sonerai's. Like Tim, I have Cleveland 30-9 brakes. I use 40-78B wheels with chrome discs -- basically the 199-102C kit from Spruce. I *REALLY* like these on my IIL. Braking action is not too much and not too little. And, my set of Clevelands (brakes, wheels, masters) have been completely trouble-free for 1000 landings and counting. -Scott
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Post by soneraifred on Aug 31, 2011 21:06:52 GMT -5
I've had the Azusa's, and both of the Great Plains hydraulics systems. The current hydraulics is the best of the lot. Braking action is good, but not too good. You will not be able to put the airplane on its nose. The only "problem" that I have with them is that the calipers rattle in the cast caliper holders, when I taxi, and it drives me a little nuts. This is probably due to how I clearanced the castings to fit the calipers, meaning they are a little too loose. I also found that I had to machine the Azusa wheels so that the brake disc mounting surface was truly perpendicular to the axle centerline to eliminate the disc wobble. One thing that you'll find when you remove the Azusa drums and install the GP disc setup is that the entire tire and wheel will move outboard about a half inch, which can affect how your wheel pants will fit.
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Post by smoothmat on Sept 3, 2011 0:47:44 GMT -5
I received my brake kits today and it looks like they will be better than the single lever cable/mechanical brakes.
Has anyone drilled holes in there brake discs for cooling and or weight reduction. They are fairly bulky dics and wouldn't hurt to loose some mass. The brake pads are extremely small!
Matt
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Post by bil438 on Sept 3, 2011 10:06:10 GMT -5
I have the Cleveland brakes. It's just as the others say, they do work and will hold for run-ups but it takes me say 1000'+ to stop the aircraft. Therefore I never make the first taxiway at my home airport. The airline pilots often get their specials planes off there. How much more braking would it take to exit on the first taxiway? The answer is probably too much. Bill
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Post by raceair on Sept 3, 2011 15:56:14 GMT -5
Angrybird...Have you ever landed a Sonerai?
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Post by oahupilot on Sept 4, 2011 1:19:34 GMT -5
I have gpas disk kit with stainless steel braid brake lines, braking is very positive and effective. I converted the gpas hand brake master to toe brakes with very good results.
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Post by lqbanotxano on Sept 4, 2011 7:33:15 GMT -5
I have Cleveland’s....they work great. Recently did new brake shoes & turned rotors on my lathe...also new wheel bearings, new tires & leak proof tubes....oh & straightened landing gear, moved brakes forward & up higher on landing gear, made the landing gear leading & trailing edge "bullet shaped", scratch fabricated & installed pressure recovery wheel pants & landing gear to fuselage fairings. Oh...and set alignment to 0 degrees toe in/out at 3 point attitude.....phew!!!
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Post by n3480h on Sept 4, 2011 7:48:06 GMT -5
Wow, you've been very industrious, Ivan! All good improvements.
Tom
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Post by gaston on Sept 4, 2011 9:13:02 GMT -5
I use GPASC hydraulic brakes and they are easy to install and work great...
note that I removed the master cylinder inner spring and they work much better that way as the puck is not retracted too far off the rotor,and stands ready for the next use...
the only down side is the lack of reservoir to take care of pad wear...
Gaston
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