Date
1 - 20 of 24
Flush Type Finishing Washer Used on Tail?
|
Corbin <c_geiser@...>
I am trying to find the flush-type finishing washer used with the screws to join the tail to the fuselage. I don't believe they are conical washers so I am hoping many of us out there know what I am referring to. There are likely so many different ways to connect the tail but if anyone knows what I am talking about and the size/name I would greatly appreciate it.
I don't have access to my plans right now but will in a day or two and can look through in case these are a "per plan" part. -- Corbin N121CG |
||
|
|
||
|
Martin Skiby
They are most likely tinnerman washers available at aircraft spruce.
toggle quoted message
Show quoted text
On Feb 5, 2022, at 1:23 PM, Corbin via groups.io <c_geiser@...> wrote:
|
||
|
|
||
This is the standard aviation
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Corbin via groups.io <c_geiser@...>
Sent: Saturday, February 5, 2022 3:23 PM To: main@Q-List.groups.io <main@Q-List.groups.io> Subject: [Q-List] Flush Type Finishing Washer Used on Tail? I am trying to find the flush-type finishing washer used with the screws to join the tail to the fuselage. I don't believe they are conical washers so I am hoping many of us out there know what I am referring to. There are likely so many different ways
to connect the tail but if anyone knows what I am talking about and the size/name I would greatly appreciate it.
I don't have access to my plans right now but will in a day or two and can look through in case these are a "per plan" part. -- Corbin N121CG |
||
|
|
||
|
Martin is correct..
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Martin Skiby <mskiby@...>
Sent: Saturday, February 5, 2022 3:39 PM To: main@q-list.groups.io <main@q-list.groups.io> Subject: Re: [Q-List] Flush Type Finishing Washer Used on Tail? They are most likely tinnerman washers available at aircraft spruce.
https://www.aircraftspruce.com/search/search.php
Martin
On Feb 5, 2022, at 1:23 PM, Corbin via groups.io <c_geiser@...> wrote:
|
||
|
|
||
|
Corbin <c_geiser@...>
You guys are the best! Thanks!
-- Corbin N121CG |
||
|
|
||
|
While we are on this topic.. the floating nutplates used in these locations should be the type with removable
thread section. I don't offhand remember the MS/AN/NAS number of this type of floating nutplate. All airliners
and bizjet use these on the various panels such as wing to body fairings if not required for ready access
on the ramp as Dzus or Camlok retainers offer.
Conditional Inspections or other reasons to remove the aft fuselage will for certain in short order nullify the
lock feature of a regular floating nutplate with the crimped retain, and then the mechanic is tasked with removing
the center plate or worse.
There is another option and that is a floating clipnut..they do not require rivets..but because these are located in
a fiberglas flange edge care must be taken not to over rotate the clipnut in installation.
I draw the fastening screw threads on a common dinner table candle prior to installing..and in so doing the rust accumulation
on the screw threads is greatly reduced or eliminated. The lock feature of the nutplate is not affected, but anyone that has cross
threaded one of the floating nutplates will remember it is not an experience to repeat. The wax assists in correct thread
engagement. Don't get in a hurry
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of smeshno1@... <smeshno1@...>
Sent: Saturday, February 5, 2022 3:39 PM To: main@Q-List.groups.io <main@Q-List.groups.io> Subject: Re: [Q-List] Flush Type Finishing Washer Used on Tail?
This is the standard aviation
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Corbin via groups.io <c_geiser@...>
Sent: Saturday, February 5, 2022 3:23 PM To: main@Q-List.groups.io <main@Q-List.groups.io> Subject: [Q-List] Flush Type Finishing Washer Used on Tail? I am trying to find the flush-type finishing washer used with the screws to join the tail to the fuselage. I don't believe they are conical washers so I am hoping many of us out there know what I am referring to. There are likely so many different ways
to connect the tail but if anyone knows what I am talking about and the size/name I would greatly appreciate it.
I don't have access to my plans right now but will in a day or two and can look through in case these are a "per plan" part. -- Corbin N121CG |
||
|
|
||
These critters.
nas1791a4-3
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Corbin via groups.io <c_geiser@...>
Sent: Saturday, February 5, 2022 3:56 PM To: main@Q-List.groups.io <main@Q-List.groups.io> Subject: Re: [Q-List] Flush Type Finishing Washer Used on Tail? You guys are the best! Thanks!
-- Corbin N121CG |
||
|
|
||
|
Here is one vendor link.. not expensive and will save a LOT of pain down the road.
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Corbin via groups.io <c_geiser@...>
Sent: Saturday, February 5, 2022 3:56 PM To: main@Q-List.groups.io <main@Q-List.groups.io> Subject: Re: [Q-List] Flush Type Finishing Washer Used on Tail? You guys are the best! Thanks!
-- Corbin N121CG |
||
|
|
||
|
If I recall correctly, the plans call for using the AN525-10R11 SCREW, which is a round headed screw with kind of a flat washer base. I don't think the plans called out for a flush screw for this application. I have to check in the plans to be sure but I'm pretty sure I'm right. https://www.aircraftspruce.com/catalog/hapages/an525.php?clickkey=5858203 With these screws you only have to use a normal thin flat washer. BTW, as for the nut plates, I've had the same nut plates installed for the last 30 years and had the tail off at least once every year. We were taught in A& P school that as long as the nut plate still provided threading resistance it was good to use. If the builder used flush screws, that wasn't according to plans and you're pretty much on your own. Dam I am trying to find the flush-type finishing washer used with the screws to join the tail to the fuselage. I don't believe they are conical washers so I am hoping many of us out there know what I am referring to. There are likely so many different ways to connect the tail but if anyone knows what I am talking about and the size/name I would greatly appreciate it. |
||
|
|
||
|
Corbin <c_geiser@...>
Thanks Sam. I’ll check it out. Also, don’t fly today as I don’t want your “Dam” typo (vs Sam) be the last thing I see from you.
-- Corbin N121CG |
||
|
|
||
|
Paul Fisher
Agreed Sam. Those are the screws that I use as well. I too have used the nutplates called out in the plans. They too have been on for over 30 years. I think I replaced one of them years ago. You drill out two rivets, replace the nutplate and squeeze two new rivets. It's a ten minute job. Don't over think it. Just follow the plans. Paul Fisher Q-200 N17PF On Sat, Feb 5, 2022, 16:35 Sam Hoskins <sam.hoskins@...> wrote:
|
||
|
|
||
|
Michael Dunning
Can confirm the AN525-10R10 call-out; I had to order some last Fall and I made sure they fit upon receipt.
Not tracking any washers; here's the plans page: http://quickheads.com/index.php?option=com_content&view=article&id=146:q2-plans-chapter-15-page-15-02&catid=34&Itemid=112 -- -MD #2827 (still thinking about planning on visualizing how to finish building) |
||
|
|
||
|
Thanks for linking the plans page Michael, So, the plans called for the AN525-10R10 both forward and aft of the split line. I see that I used flat head screws for the front and buried them and use the round head screws for the aft portion. I wonder if the QAC approved that as a cosmetic mod. It's been so long I can't remember. For what's it worth, you can see a couple of my brackets here: https://q-list.groups.io/g/main/photo/115659/3219811?p=Created%2C%2C%2C100%2C2%2C0%2C0 Sam On Sat, Feb 5, 2022 at 6:03 PM Michael Dunning <dunningme@...> wrote: Can confirm the AN525-10R10 call-out; I had to order some last Fall and I made sure they fit upon receipt. |
||
|
|
||
|
Michael Dunning
Mine are the exact same way, Sam. No idea where the change came from.
-- -MD #2827 (still thinking about planning on visualizing how to finish building) |
||
|
|
||
|
I made my brackets out of stainless, buried the front ones under glass and installed stainless flathead screws on the rear.
Under the flathead screws I buried Tinnerman washers so the glass doesn't get damaged. Just another option.
Jim
N46JP Q200
1840 hours.
From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Michael Dunning <dunningme@...>
Sent: Sunday, February 6, 2022 12:00:00 PM To: main@Q-List.groups.io <main@Q-List.groups.io> Subject: Re: [Q-List] Flush Type Finishing Washer Used on Tail? Mine are the exact same way, Sam. No idea where the change came from.
-- -MD #2827 (still thinking about planning on visualizing how to finish building) |
||
|
|
||
|
Michael Dunning
Made it to the hangar today:
 -- -MD #2827 (still thinking about planning on visualizing how to finish building) |
||
|
|
||
|
Chris Walterson
Michael--------- Those are the same screws that came with the kit, however mine are stainless. I use a thin washer underneath to prevent mashing the pain.------------ Chris
-- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
||
|
|
||
|
Richard Gammon <gamzoom@...>
Hi Corbin,
Looking at the Hardware section, HA, in the Aircraft Spruce and Specialty
Co. catalog, you will find them under :
Tinnerman countersunk washers.
There are a few types to choose from. Stainless, plated spring steel,
(and G8 with No8 hole OD as a No10 .
All are for AN or MS flat head/countersunk screws.
The correct screws are NAS514 Philips flat head or MS24694C Stainless
Steel.
Note all are 100 deg heads and NOT the hardware store angle or the familiar
wood countersink angle.
I am trusting that the Q installation design was
using all AN or MS fasteners. Of The same thread sizes, AN,MS threads are of a
closer fit to give a stronger fastener. (incase you wondered).
You can order a free of charge catalog but is
“one and a half inch thick”, so use online unless you like thick books or are
building a plane.
Richard G
************* From: Corbin via groups.io
Sent: Saturday, February 05, 2022 4:23 PM
Subject: [Q-List] Flush Type Finishing Washer Used on
Tail? I
am trying to find the flush-type finishing washer used with the screws to join
the tail to the fuselage. I don't believe they are conical washers so I am
hoping many of us out there know what I am referring to. There are likely
so many different ways to connect the tail but if anyone knows what I am talking
about and the size/name I would greatly appreciate it. I don't have access to my plans right now but will in a day or two and can look through in case these are a "per plan" part. -- Corbin N121CG |
||
|
|
||
|
Corbin <c_geiser@...>
On Sat, Feb 12, 2022 at 11:30 PM, Richard Gammon wrote:
MS24694CThanks Richard. I placed an order with Aircraft Spruce a few days ago so I am hoping they are the right ones. They have a warehouse close to my house so I typically receive orders with a day or two, at most. I hate their shipping costs though and try to order from other sources as much as possible. -- Corbin N121CG |
||
|
|
||
|
Hi Corbin, Take care if you are using stainless screws with standard anchor
nuts and you use a power screwdriver. They can seize and damage
the nut or the mounting rivets. I use a slight smear of anti seize on the thread to lubricate
those regularly removed like my cowling screws, it still has
enough friction to lock the screw. Rich T. On 13/02/2022 21:55, Corbin via
groups.io wrote:
On Sat, Feb 12, 2022 at 11:30 PM, Richard Gammon wrote: |
||
|
|
