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From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-2604528@logan.com>
Subject: Re: [FlyRotary] Re: Supercharging
Date: Wed, 19 Dec 2007 08:05:06 -0500
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 Well, Ernest,  it looks like the calculations were in the ball park 
regarding power required - but, then you already had that info {:>)

Ed

> I believe this is the page that first sent me down this road:
>
> http://www.lawncare-business.com/leaf%20blower%20comparisons.htm
>
> The Husqvarna 155BT.  A backpack blower that uses a 3.0Hp engine to 
> deliver 378CFM at 161Mph.  Their 165BT takes 4.2Hp to giver 452CFM at 
> 168Mph.
>
> MacKissic uses a 6.5Hp engine on their LB6 push blower to deliver 1800CFM 
> at 175Mph.  10Hp will get you 2000CFM at 200Mph with their LB101CEZ.
>
> Shindaiwa advertises that the 3.9Hp in their EB630 will deliver 613CFM at 
> 201Mph, and Tanaka claims 500CFM at 200Mph from their 2.5Hp TBL-4600.
>
> All the airflows are with the tube attached, but they are also marketing 
> numbers, so keep the salt shaker handy.  In fact, given Ed's math, I would 
> say that Tanaka's claims are miraculous.  Lynn gave me an idea for a test, 
> though.  I'll borrow Mark's digital pressure meter and see how much static 
> pressure my electric blower will make.  Possibly useless / possibly 
> interesting data point.
>
> --
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