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Reply-To: "kevin lane" <n3773@comcast.net>
From: "kevin lane" <n3773@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-1022526@logan.com>
Subject: amphib thoughts
Date: Sun, 26 Jun 2005 17:35:58 -0700
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I am not flying my -6A as extensively as I used to and have been having 
crazy thoughts, probably from exposure to Rusty, of trading in on an amphib. 
I was looking at the Sea Ray then remembered that Mr Coot himself lives 
right across the river from me.  Ken, give me a call if you would please. 
You can bring me up to par on what to look for and what to avoid.  I checked 
into putting the -6A on floats, but there are too many changes to be worth 
it.  I think I want a completed project since I have enough going trying to 
build the -8.  If you guys have comments on this idea I'd would like to hear 
them.  I keep reading about how much fun float planes can be.  I guess I can 
handle the 80 mph until the -8 is completed.
Kevin Lane  Portland, OR (503) 233-1818
e-mail-> n3773@comcast.net

----- Original Message ----- 
From: "al p wick" <alwick@juno.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, June 26, 2005 5:02 PM
Subject: [FlyRotary] Re: Coolant Leak


> Actually, I think the opposite is true. I understand the auto approach is
> to NOT have any air in the cooling system. I don't recall the details of
> their reasoning. In my experience, the safety advantage of cup-o-air is
> much more significant.
> BTW, it's probably more like 2 cups. The goal is to have enough air
> cushion to prevent pressure from reaching cap rating. When you include
> coolant temp, fluid level, and pressure info, it really improves your
> understanding of how your system is behaving.
>
> If you ever open your car radiator and find air at top, it indicates a
> problem with your cooling system.
>
>
>
> -al wick
> Artificial intelligence in cockpit, Cozy IV powered by stock Subaru 2.5
> N9032U 200+ hours on engine/airframe from Portland, Oregon
> Prop construct, Subaru install, Risk assessment, Glass panel design info:
> http://www.maddyhome.com/canardpages/pages/alwick/index.html
>
>
>
> On Sun, 26 Jun 2005 13:15:14 -0400 "Ian Dewhirst" <ianddsl@magma.ca>
> writes:
>> Al, your experience with the value of having an air cushion is
>> supported by
>> every automotive cooling system that I have ever seen (many).
>> Typically
>> autos use either a pressure cap and expansion tank that is not
>> filled to the
>> top, or an overflow bottle into which coolant is expelled and
>> recovered.  I
>> get the impression that some people assume that these overflow style
>> systems
>> contain no vapour when cold, I don't think that assumption is
>> correct.  The
>> overflow systems all have expansion capacity built into the top of
>> the
>> radiator, or some other part of the cooling system they are never
>> completely
>> filled with coolant.  The bigger the cooling system the greater the
>> volume
>> of vapour stored cold.
>>
>> -- Ian
>>
>> (GM, Chrysler, and Ford are not trying to piss you off with those
>> side
>> mounted radiator caps.. ;-)
>>
>>
>>
>>
>> -----Original Message-----
>> From: Rotary motors in aircraft
>> [mailto:flyrotary@lancaironline.net]On
>> Behalf Of al p wick
>> Sent: Sunday, June 26, 2005 11:58 AM
>> To: Rotary motors in aircraft
>> Subject: [FlyRotary] Re: Coolant Leak
>>
>>
>> My focus is on flight safety. I found great value to having appx. 1
>> cup
>> of air at the top of my cooling system....
>>
>>
>>
>> >>  Homepage:  http://www.flyrotary.com/
>> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>>
>>
>
>>>  Homepage:  http://www.flyrotary.com/
>>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html