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Date: Mon, 28 Aug 2006 14:09:48 -0600
From: Heidi Johnson <hjjohnson@sasktel.net>
Subject: Re: [FlyRotary] Re: OT: Gardenhose as level
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Bob, I've always wondered how a laser level could be more accurate than a water level. I'm not disputing the claim but I've never understood how its possible. I'll explain my quandry..  a laser level is only as level as the little bubble will make it. I've found some that aren't even close to level when they 'say' they are.  A water level [ all things concidered like bubbles and wind] will sit perfectly level  once properly set up, we know that water will seek its own level. I'm not convinced that a laser level is better. Am I missing something??

Curious is all  :)

Jarrett

----- Original Message -----
From: Bob Perkinson <bobperk@bellsouth.net>
Date: Monday, August 28, 2006 1:57 pm
Subject: [FlyRotary] Re: OT: Gardenhose as level

> Finn,
> Spend $35 or $40 at Lowe's or Home Depot and get you a Laser 
> Level.  The
> time you will save and the accuracy will more than pay for it.
> 
> Bob Perkinson
> Hendersonville, TN.
> RV9 N658RP Reserved
> If nothing changes
> Nothing changes
> 
> 
> 
> 
> 
> 
> Only vaugely rotary related...
> 
> I'm driving myself nuts trying to build this thing level to within 1/8
> to 1/4" !
> 
> I'm using a gardenhose, terminating in clear PVC tubing at each 
> end, to
> get reference points at the four corners.
> 
> The thing is that the level varies 1/2" or more over hours. One 
> end will
> be up, 1/2" over where it was an hour ago and the other end down. Then
> it changes, etc. How can a guy get a reliable reading this way?
> 
> Is the friction in the hose too big to reliably use this as a level?
> 
> Do I need to terminate each end in funnels to get bigger ambient 
> pressure?
> Finn
> (frustrated)
> 
> 
> 
> 
> --
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