Received-SPF: softfail
 receiver=logan.com; client-ip=171.71.176.71; envelope-from=echristley@nc.rr.com
Message-ID: <43CE733C.20203@nc.rr.com>
Date: Wed, 18 Jan 2006 11:56:28 -0500
From: Ernest Christley <echristley@nc.rr.com>
Reply-To: echristley@nc.rr.com
User-Agent: Mozilla Thunderbird 1.0.2 (X11/20050317)
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: LS1 Coil Failures
References: <list-931488@logan.com>
In-Reply-To: <list-931488@logan.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Russell Duffy wrote:

>     Each rotor fires once/revolution of the eccentric shaft.  Cruising
>     along at 6000rpm, that's 600 sparks/second/coil. 
>
>  
> Hi Mark,
>  
> Is this the new math I always heard about :-) 
>  
> 6000 rpm / 60 seconds = 100 sparks per second
>  
> Cheers,
> Rusty (everyone's a critic <g>)
>  
>
>  

Good catch, Rusty, but to Mark's credit, that is still an order of 
magnitude higher than 'normal' operations.  If they were designed with a 
safety factor of 8, we'd still be pushing them to their limit under SOP.

-- 
         ,|"|"|,                                    |
----===<{{(oQo)}}>===----        Dyke Delta         |
        o|  d  |o          www.ernest.isa-geek.org  |