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Door shootbolt rod material

 
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tonyrenshaw268(at)gmail.c
Guest
PostPosted: Tue Jan 11, 2011 4:53 pm    Post subject: Door shootbolt rod material Reply with quote
Hi,
In the process of attempting to nominally increase the length of the aft shootbolt throw, I cut the rod and sleeved it, but it now catches within the sill as it actuates. I think I might just replace the pushrod with new material, hopefully sourced locally. I know it doesn't have to be very strong, so maybe hardware grade aluminium might be OK for the 10 mm rod replacement? I could also possibly source the flattish rectangular product Europa uses on the door sill shoulder width mod, but I don't know its dimensions or what it is made of.
I am open to an requesting any ideas/suggestions on how I should overcome this without international postage on a 1 m long item, a fortune.

Thanks.
Reg
Tony Renshaw
P.S. The 10 mm diameter is an issue of itself, as I don't seem to be able to get that size locally, but I do have a mate with a lathe, so if I bought 1/2" we could turn it down.

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rlborger(at)mac.com
Guest
PostPosted: Tue Jan 11, 2011 6:53 pm    Post subject: Door shootbolt rod material Reply with quote
Tony,

I have an original 1m X 10mm length of boltshoot aluminum rod. It seems like 2024 or 6061 would be the most likely candidates. Probably worth all of $2. I'd be happy to forward the rod to you for the cost of shipping, but that probably exceeds the value by 3 or 4 times. It's up to you.

Check six,
Bob Borger
http://www.europaowners.org/N914XL
Europa XS, Short Wing, Intercooled Rotax 914
rlborger(at)mac.com
Cel: 817-992-1117


On Jan 11, 2011, at 6:50 PM, Tony Renshaw wrote:

Quote:


Hi,
In the process of attempting to nominally increase the length of the aft shootbolt throw, I cut the rod and sleeved it, but it now catches within the sill as it actuates. I think I might just replace the pushrod with new material, hopefully sourced locally. I know it doesn't have to be very strong, so maybe hardware grade aluminium might be OK for the 10 mm rod replacement? I could also possibly source the flattish rectangular product Europa uses on the door sill shoulder width mod, but I don't know its dimensions or what it is made of.
I am open to an requesting any ideas/suggestions on how I should overcome this without international postage on a 1 m long item, a fortune.

Thanks.
Reg
Tony Renshaw
P.S. The 10 mm diameter is an issue of itself, as I don't seem to be able to get that size locally, but I do have a mate with a lathe, so if I bought 1/2" we could turn it down.






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grahamsingleton(at)btinte
Guest
PostPosted: Wed Jan 12, 2011 1:10 am    Post subject: Door shootbolt rod material Reply with quote
Tony
the material as supplied was not very strong anyway, so store bought rod should be OK. However have a look at the way Paul McAllister did it. We used 2024 sheet instead of slotting the rather soft rod. Much stronger.

Also we put bushes in the door surounds too which the old manual doesn't do
Graham
From: Tony Renshaw <tonyrenshaw268(at)gmail.com>
To: europa-list(at)matronics.com
Sent: Wednesday, 12 January, 2011 0:50:26
Subject: Door shootbolt rod material

--> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>

Hi,
In the process of attempting to nominally increase the length of the aft shootbolt throw, I cut the rod and sleeved it, but it now catches within the sill as it actuates. I think I might just replace the pushrod with new material, hopefully sourced locally. I know it doesn't have to be very strong, so maybe hardware grade aluminium might be OK for the 10 mm rod replacement? I could also possibly source the flattish rectangular product Europa uses on the door sill shoulder width mod, but I don't know its dimensions or what it is made of.
I am open to an requesting any ideas/suggestions on how I should overcome this without international postage on a 1 m long item, a fortune.

Thanks.
Reg
Tony Renshaw
P.S. The 10 mm diameter is an issue of itself, as I don't seem to be able to get that size locally, but I do have a mate with a lathe, so if I bought 1/2" we could turn it down.

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rob(at)hyperion-ef.com
Guest
PostPosted: Wed Jan 12, 2011 8:09 am    Post subject: Door shootbolt rod material Reply with quote
Oh goodie, I get to play metallurgist (again).

First, as noted in the exchange, strength is not the issue.  A wooden dowel (not recommended!!) would probably be adequate for this job.  Any aluminum alloy will work just fine so select whatever is at hand or readily available, and in this case either 6061 or 6063 would be a good choice.  2024 is a higher strength alloy and would also be fine if it is conveniently available but otherwise not worth the slight extra cost.  The real advantage to Paul’s approach is the ease with which the “fork” can be fabricated (does the manual still call for using a hack saw to cut the slot?) not the alloy used.

Second, keep in mind that within the usual range of alloying elements any metal’s modulus of elasticity (how much it deflects for a given applied force, in other words its “stiffness”) is constant, while the tensile strength can vary dramatically for different alloys.  Because of its length, the aft shoot-bolt must be sufficiently stiff or it could deflect and bind in the bushing, and apparently there are no examples of this being a problem  – changing the aluminum alloy would have no effect. 


Best regards,

Rob Housman
Irvine, California
Europa XS
Rotax 914
S/N A070
Airframe complete
Avionics soon


From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of GRAHAM SINGLETON
Sent: Wednesday, January 12, 2011 1:07 AM
To: europa-list(at)matronics.com
Subject: Re: Door shootbolt rod material

Tony
the material as supplied was not very strong anyway, so store bought rod should be OK. However have a look at the way Paul McAllister did it. We used 2024 sheet instead of slotting the rather soft rod. Much stronger.

Also we put bushes in the door surounds too which the old manual doesn't do
Graham

From: Tony Renshaw <tonyrenshaw268(at)gmail.com>
To: europa-list(at)matronics.com
Sent: Wednesday, 12 January, 2011 0:50:26
Subject: Door shootbolt rod material

--> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>

Hi,
In the process of attempting to nominally increase the length of the aft shootbolt throw, I cut the rod and sleeved it, but it now catches within the sill as it actuates. I think I might just replace the pushrod with new material, hopefully sourced locally. I know it doesn't have to be very strong, so maybe hardware grade aluminium might be OK for the 10 mm rod replacement? I could also possibly source the flattish rectangular product Europa uses on the door sill shoulder width mod, but I don't know its dimensions or what it is made of.
I am open to an requesting any ideas/suggestions on how I should overcome this without international postage on a 1 m long item, a fortune.

Thanks.
Reg
Tony Renshaw
P.S. The 10 mm diameter is an issue of itself, as I don't seem to be able to get that size locally, but I do have a mate with a lathe, so if I bought 1/2" we could turn it down.

[quote][b]

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