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Jeff J
 Post subject: Dual brakes
PostPosted: Fri Aug 16, 2019 8:18 pm 
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What are the popular setups for dual brakes in a Thorp?

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Rich Brazell
 Post subject: Re: Dual brakes
PostPosted: Fri Aug 16, 2019 9:24 pm 
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I thought about it then I read somewhere in the NL's from the early early years that you need to weigh who is going to be in the right seat ? Other than a CFI for a BFR or giving dual I could not justify the cost and maint. of putting brakes for the right seat . ??? Besides I fly solo 99% of the time . :P If you really want to crawl down there to install/service the little darlings please send pics of your adventure . :o

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fytrplt
 Post subject: Re: Dual brakes
PostPosted: Sat Aug 17, 2019 5:39 am 
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I would take a field trip to a Cessna 150 and see how they plumb it. The Ken Brock removable floor model would come in handy for the installation. I will say, in my 2950 hours ofThorp time, I never felt a yearning for dual brakes.

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Jeff J
 Post subject: Re: Dual brakes
PostPosted: Sun Aug 18, 2019 7:51 am 
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The goal is having a left hand throttle. Simply moving the throttle is okay but I would prefer the airplane be flyable from both sides. I spend enough time in single and tandem seat airplanes that it isn’t uncommon for me to solo a Skyhawk or 150 from the right seat. No reason to not do the same with the Thorp. I was thinking dual throttles isn’t likely to be easier than dual brakes to install and more people would be interested in the dual brakes if I ever decide to sell.

As luck would have it, I have easy access to a 150. Thanks for the idea.

I may not be able to edit something I posted that I don’t like after the fact but at least I have limited ability to delete and start over.

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Thorp T18
O-320-B3B (160 HP)
68x74 Sterba Propeller

"The joke in aviation is, 'If you want to make a million, you'd better start with £10m.' " -Bruce Dickinson


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Jeff Blanton
 Post subject: Re: Dual brakes
PostPosted: Sun Aug 18, 2019 3:52 pm 
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I have done it by using an external resivore to RH master cylinder inlet, then take hoses from RH exit to pilot inlet. Pilot exit to brake. It works, but hard to bleed and more chance of leaks.

When I do it again I will do like the early Beech King Airs did. They use a shuttle valve in the line between pilot and copilot master cylinders. Only downside is both people can’t use brakes at same

https://www.flowfitonline.com/hydraulic ... e-valve-14

Just an example of a valve. Don’t know if that exact one is suitable.



Jeff


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James Grahn
 Post subject: Re: Dual brakes
PostPosted: Sun Aug 18, 2019 8:06 pm 
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I may have a drawing of it somewhere. Lemme look.
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Rich Brazell
 Post subject: Re: Dual brakes
PostPosted: Mon Aug 19, 2019 3:30 pm 
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Pretty sure there was a drawing in the old NL's . ??? I have no idea which one ? :o

RB O0


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Jeff J
 Post subject: Re: Dual brakes
PostPosted: Tue Aug 27, 2019 6:01 am 
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I finally got a chance to look through the news letters and there is a couple of ideas in there. There was also mention of adding dual brakes to the aircraft drawings. I haven’t had a chance to look to see if it actually happened but I have the current drawings unless something has changed in the last couple of years.

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Thorp T18
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68x74 Sterba Propeller

"The joke in aviation is, 'If you want to make a million, you'd better start with £10m.' " -Bruce Dickinson


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