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rudder stops

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jrlark

Joined: 03 Jul 2009
Posts: 72

Posted: Sat Aug 29, 2009 5:42 am Post subject: rudder stops

Hi all.



I'm just about to fasten the rudder stops(R-1007B's) to the lower rudder 

hinge bracket(VS-1010) and have decided to use bolts as opposed to the

AN470AD4-6 rivets as Scott Schmidt and others have reported can work loose 

in high winds.



In looking in the ACS catalogue I see structural machine screws (NAS600-603, 

page 93) which have a far greater tensile strength than the rivets. 

Unfortunately there is no rating for shear strength which I would think is 

more important.  What type of screws have those who have replaced the rivets 

used??



Has anyone approached Vans w/regards to this substitute, as the prototype 

has them??



Thx,   Rick

#40956

Southampton, Ont.

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jesse(at)saintaviation.co
Guest

Posted: Sat Aug 29, 2009 6:43 am Post subject: rudder stops

I have used standard #6 screws and nuts as used elsewhere in the kit.   

The steel screw with a bigger diameter should have a LOT higher sheer  

strength than the rivet, although I don't know in actual values.  When  

I looked at Van's plane it appeared that this is what they were using.



do not archive



Jesse Saint

Saint Aviation, Inc.

jesse(at)saintaviation.com

Cell: 352-427-0285

Fax: 815-377-3694



On Aug 29, 2009, at 9:26 AM, Sandra & Rick Lark wrote:



 	  Quote: 	
		   

 <jrlark(at)bmts.com>



 Hi all.



 I'm just about to fasten the rudder stops(R-1007B's) to the lower  

 rudder hinge bracket(VS-1010) and have decided to use bolts as  

 opposed to the

 AN470AD4-6 rivets as Scott Schmidt and others have reported can work  

 loose in high winds.



 In looking in the ACS catalogue I see structural machine screws  

 (NAS600-603, page 93) which have a far greater tensile strength than  

 the rivets. Unfortunately there is no rating for shear strength  

 which I would think is more important.  What type of screws have  

 those who have replaced the rivets used??



 Has anyone approached Vans w/regards to this substitute, as the  

 prototype has them??



 Thx,   Rick

 #40956

 Southampton, Ont.

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

AV8ORJWC

Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"

Posted: Sat Aug 29, 2009 6:53 am Post subject: rudder stops

Consider Hi-Loks (HL18s) or Hi-Lites from Hi-Shear Corporation.

  



  John Cox

 #40600



 

  From: Sandra & Rick Lark

Sent: Sat 8/29/2009 6:26 AM

To: rv10-list(at)matronics.com

Subject: RV10-List: rudder stops

 [quote]--> RV10-List message posted by: "Sandra & Rick Lark" <jrlark(at)bmts.com>  Hi all.  I'm just about to fasten the rudder stops(R-1007B's) to the lower rudder  hinge bracket(VS-1010) and have decided to use bolts as opposed to the AN470AD4-6 rivets as Scott Schmidt and others have reported can work loose  in high winds.  In looking in the ACS catalogue I see structural machine screws (NAS600-603,  page 93) which have a far greater tensile strength than the rivets.  Unfortunately there is no rating for shear strength which I would think is  more important.  What type of screws have those who have replaced the rivets  used??  Has anyone approached Vans w/regards to this substitute, as the prototype  has them??  Thx,   Rick #40956 Southampton, Ont.

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Tim Olson

Joined: 25 Jan 2007
Posts: 2872

Posted: Sat Aug 29, 2009 9:04 am Post subject: rudder stops

I don't think you have to get too worried about the shear spec

of the screws you use.  You just need to get something

that is more resistant than the aluminum rivets.  So any steel

screw will do.  I'd try to put one that you can use the

smooth upper part of the screw through the material, where

the grip just starts as you get outside the rudder blocks.

Put a washer or two on it to guarantee you get it tight

and don't bottom on the shoulder.



The fact is, if you beat the thing up so bad that a steel

screw is going to shear, the rudder stop material itself

is probably going to break anyway, and you'll break an

ear off.  So the screw themselves really aren't a big

worry.



Tim Olson - RV-10 N104CD



Sandra & Rick Lark wrote:

 	  Quote: 	
		   

 

 Hi all.

 

 I'm just about to fasten the rudder stops(R-1007B's) to the lower rudder 

 hinge bracket(VS-1010) and have decided to use bolts as opposed to the

 AN470AD4-6 rivets as Scott Schmidt and others have reported can work 

 loose in high winds.

 

 In looking in the ACS catalogue I see structural machine screws 

 (NAS600-603, page 93) which have a far greater tensile strength than the 

 rivets. Unfortunately there is no rating for shear strength which I 

 would think is more important.  What type of screws have those who have 

 replaced the rivets used??

 

 Has anyone approached Vans w/regards to this substitute, as the 

 prototype has them??

 

 Thx,   Rick

 #40956

 Southampton, Ont.

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

jesse(at)saintaviation.co
Guest

Posted: Sat Aug 29, 2009 9:51 am Post subject: rudder stops

Also, if the threaded part goes through the other bracket, even with  

nut between the brackets, you are working, at least partially, in  

double sheer.



Jesse Saint

Saint Aviation

jesse(at)saintaviation.com

352-427-0285



Sent from my iPhone



On Aug 29, 2009, at 12:59 PM, Tim Olson <Tim(at)MyRV10.com> wrote:



 	  Quote: 	
		   



 I don't think you have to get too worried about the shear spec

 of the screws you use.  You just need to get something

 that is more resistant than the aluminum rivets.  So any steel

 screw will do.  I'd try to put one that you can use the

 smooth upper part of the screw through the material, where

 the grip just starts as you get outside the rudder blocks.

 Put a washer or two on it to guarantee you get it tight

 and don't bottom on the shoulder.



 The fact is, if you beat the thing up so bad that a steel

 screw is going to shear, the rudder stop material itself

 is probably going to break anyway, and you'll break an

 ear off.  So the screw themselves really aren't a big

 worry.



 Tim Olson - RV-10 N104CD



 Sandra & Rick Lark wrote:

> 

> >

> Hi all.

> I'm just about to fasten the rudder stops(R-1007B's) to the lower  

> rudder hinge bracket(VS-1010) and have decided to use bolts as  

> opposed to the

> AN470AD4-6 rivets as Scott Schmidt and others have reported can  

> work loose in high winds.

> In looking in the ACS catalogue I see structural machine screws  

> (NAS600-603, page 93) which have a far greater tensile strength  

> than the rivets. Unfortunately there is no rating for shear  

> strength which I would think is more important.  What type of  

> screws have those who have replaced the rivets used??

> Has anyone approached Vans w/regards to this substitute, as the  

> prototype has them??

> Thx,   Rick

> #40956

> Southampton, Ont.

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

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