I have seen a licenced aircraft engineer do same on my aircraft. It makes
sense to me, but I guess someone could provide the mathematics. My Woodcomp
nuts are 1/2 inch, and the torque wrench can also be set up for 1/2 inch.
The open end then of a common garden wrench fits onto the torque wrench, and
the other end fits onto the nut. Torque is then applied at right angle.
Karl
>From: Rowland Carson <rowil@clara.net>
>Reply-To: europa-list@matronics.com
>To: europa-list@matronics.com
>Subject: Re: Europa-List: prop bolts
>Date: Fri, 8 Sep 2006 11:00:01 +0100
>
>
>
>>I have attached (I hope it comes through!) a rough sketch illustrating the
>>principle.
>
>Svein - your diagram is excellent and clearly shows what you mean to do -
>but I'm having trouble understanding how this ensures correct torque at the
>prop bolt.
>
>Initially, I thought it was fine, but when I try to analyse what is
>happening in terms of the forces that are being applied at various points,
>I don't seem to be able to extract a sensible answer.
>
>I also imagined a different geometry - such as the torque wrench in line
>with the ring spanner - and it seems that wouldn't work unless the torque
>setting was adjusted to allow for the relative lengths of the torque wrench
>and spanner.
>
>Can you (or anyone else) offer an explanation of why the 90-degree geometry
>works?
>
>regards
>
>Rowland
>--
>| Rowland Carson PFA #16532 http://home.clara.net/rowil/aviation/
>| 750 hours building Europa #435 G-ROWI e-mail <rowil@clara.net>
>
>
|