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Date: Fri, 26 Aug 2005 10:19:04 -0500
From: Jim Sower <canarder@frontiernet.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Flamible brake fluid
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The guy I was responding to was talking about why the airlines didn't 
use trick rotors.  They land at upwards of 130 kts (that's about 150 
mph) and weigh closer to 800 THOUSAND pounds.  That's a lot of heat.  
You can only dissipate it if the rotors are shedding a HUGE amount of 
heat.  To do that, they have to be pretty hot themselves. 

Anyway, I hadn't thought the rotors we have are all that inadequate.  
The pads often leave a bit to be desired, and flammable fluid isn't a 
great idea, but that fluid issue has been solved several times over.  A 
lot of people are installing brakes too small for their airplane.  
Vari-EZ brakes won't work too well on a Velocity but you can't blame the 
brakes for that.

Anyway, it's pretty much all been said ... Jim S.

jesse farr wrote:

> Most Porsche's weigh a heck of a lot more than 1500 pounds and when 
> using brakes rather hard aren't going as slow as decent landing speed; 
> and, oh yeah, how darn much does most of these small airplanes weigh ?
> jofarr
>
>
> ----- Original Message ----- From: "Jim Sower" <canarder@frontiernet.net>
>
>> What's a Porsche weigh?  1500 lb? all that heat must be absorbed by 
>> the puck, piston, caliper and fluid.  Doable if you're dealing with a 
>> 1500 lb [relatively] slow moving vehicle. 
>
>
>
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