Re: Calibrating a Torque meter question

From: Bill Carney <wcarneyjx_at_comcast.net>
Date: Wed, 5 Sep 2012 16:06:17 +0000 (UTC)

Ren,



As Jo hn and Fred said, it matters wh en comparing notes with other flyers. It also matters when you go back and look at your notes from 5 years and two torque meters ago.



I'll be happy to show you a couple of methods of calibrating your torque meters when we go fly in Lakeland later this month.

Bill Carney
That Florida Indoor Guy
----- Original Message -----
From: "N. A. Monllor" <nmonllor_at_tampabay.rr.com>
To: "Indoor Construction" <Indoor_Construction_at_yahoogroups.com>
Sent: Wednesday, September 5, 2012 11:47:03 AM
Subject: RE: [Indoor_Construction] Calibrating a Torque meter question

 







Thank you John and Fred,

 

I really thought so.

 

I asked a couple of engineering friends of mine and they could not come up with anything concrete other than, “…to figure out the range of twist of the wire when making a torque meter…”

That made perfect sense to me, but I thought “Naw, there has to be something else to this. It just seems so important. What a putz.

 

Thank you guys,

Ren

 

 



From: Indoor_Construction_at_yahoogroups.com [mailto:Indoor_Construction_at_yahoogroups.com] On Behalf Of Fred or Judy Rash
Sent: Wednesday, September 05, 2012 11:02 AM
To: Indoor_Construction_at_yahoogroups.com
Subject: Re: [Indoor_Construction] Calibrating a Torque meter question

 

 




My impression is that you want your torque meters calibrated if:
(1) You want to compare what you are doing with what other modelers are doing for the same event and maybe even the same design of plane and/or prop.
(2) You are trying to find initial settings for a variable pitch prop (but I am not).
Fred Rash


On 9/5/2012 10:51 AM, N. A. Monllor wrote:



 






Hello guys,

 

Why is torque meter calibration important? How does it impact the end result when the torque meter is used?

 

This is what I think happens. We wind to a certain torque with a given size rubber for a given size plane. We fly and observe what the plane does in flight and how many turns are left on the rubber. We make whatever adjustments are needed to fulfill our next flight. We fly, observe and adjust some more for optimum flight duration.

 

Why does the torque meter have to be calibrated if it was built to handle a certain range of rubber sizes?

There is still going to be a range of meter deflection and ultimately that is what we use to judge our next flights adjustments.

 

What am I missing??

 



 
Received on Wed Sep 05 2012 - 09:06:14 CEST