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1. 06:25 AM - Re: Elevator - Elev Trim Tab Skin (E-619) and Elev Counterbalance Skin (E-713) (Robert Woods)
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| Subject: | Re: Elevator - Elev Trim Tab Skin (E-619) and Elev Counterbalance |
Skin (E-713)
Hi Garey,
I if you have already bent your trailing edge, things are going to be
tough. Just spread it out and get in there. If you have only 1/8" edge
distance something doesn't sound right. Mine is 1/4". Sure its lined up
right? Worst case you will have to grind down your dimple die, female one
only, so it will fit. Do it now anyhow because you will need it later trust
me. On beveling, you bevel the underlying pieces so that when you rivet all
together there is no budging from underneath. Don't think too much on this
one just mark off an area and get after it with a small scotch bright wheel
until it is some what thinner, no biggie.......Good luck If you decide to
do your trim tab over, most everyone has more than twice, let me know and I
will guide you through the easy way and better in my opinion. No blind
rivets on the bottom! I'm a proud member of the one time trim tab club:)
Robb....7A
----- Original Message -----
From: "Garey Wittich" <gareywittich2000@yahoo.com>
<rv8-list@matronics.com>
Sent: Monday, March 09, 2009 7:33 PM
Subject: RV7-List: Elevator - Elev Trim Tab Skin (E-619) and Elev
Counterbalance Skin (E-713)
Greetings:
Ref: RV-8A (RV-7 is the same = Drawing 4)
Looked on Matronics, but found no answers to these questions
Question 1:
When building the Elev Trim Tab Skin it says: 1) bend the Skin with the
wooden brake, 2) bend the 2 metal "tabs" that are at each end, 3) match
drill the Trim Tab Horns (E-717 and E-718) to the Skin. So far no problem,
BUT now how do you then dimple the Skin where the E-718 (INBOARD Trim Tab
Horn) goes as the 2 rivets for it are approx 1/8" from the bent Skin Tab
????? One of the 2 rivets is also near the bent trailing edge which makes
it impossible to get at.
Question 2:
Instructions say to "bevel the inboard and aft edges of the Counterbalance
Skin (E-713) locally where the Counterbalance Skin overlaps the (Elev) Spar
and Rib flanges to provide a smooth transition between the Counterbalance
Skin and the Elevator Skin." This does not make sense. I can see
"beveling" the Elev Skin "at the point" where the Counterbalance Skin goes
UNDER the Elev Skin to make a smooth transition. Am I missing something
???
Appreciate your help,
Garey Wittich RV-8A Santa Monica, CA
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