shanespector
Newbie
 Offline
Age: 45
Location: Colo. Spgs. CO
Posts: 21
|
 |
« on: April 02, 2009, 10:02:16 AM » |
|
What is the reason for the Open Corner on the gussets? Thanks for any help.
|
|
|
|
|
Logged
|
There is never a traffic jam on the extra mile.
|
|
|
Glen
Global Moderator
Hero Member
 Online
Age: 76
Location: South West Utah
Posts: 5130
SCTA/BNI timer 1983 to 2004,Semi Retired,.
|
|
« Reply #1 on: April 02, 2009, 10:11:56 AM » |
|
For draining and to keep salt from packing in he corner and starting rust.
|
|
|
|
|
Logged
|
Glen  South West, Utah |
|
|
shanespector
Newbie
Offline
Age: 45
Location: Colo. Spgs. CO
Posts: 21
|
|
« Reply #2 on: April 02, 2009, 10:26:52 AM » |
|
Thats what i thought, just making sure. Thanks Glen.
|
|
|
|
|
Logged
|
There is never a traffic jam on the extra mile.
|
|
|
Loose Goose-Terry#1
Full Member
Offline
Age: 59
Location: Easton, Missouri
Posts: 147
When in doubt, GAS IT!
|
|
« Reply #3 on: April 02, 2009, 02:16:37 PM » |
|
 In addition to what Glenn said, it is much stronger because there isn't a localized stress point where cracks can occur. Terry 
|
|
|
|
|
Logged
|
If I had it all to do over again...I would!
|
|
|
shanespector
Newbie
Offline
Age: 45
Location: Colo. Spgs. CO
Posts: 21
|
|
« Reply #4 on: April 02, 2009, 07:18:30 PM » |
|
Thanks Terry.That also makes much sense. |
|
|
|
|
Logged
|
There is never a traffic jam on the extra mile.
|
|
|
Dr Goggles
Hero Member
Offline
Age: 161
Location: Melbourne Australia
Posts: 1764
The Jarman-Stewart "Spirit of Sunshine" Bellytank
|
|
« Reply #5 on: April 02, 2009, 09:23:05 PM » |
|
What is the reason for the Open Corner on the gussets? Thanks for any help.
I believe that due to the absence of a fulcrum point that a gussett with a radiused cut out is stronger. Can't remember the source of that info....might be my imagination, but I'm sure I read it somewhere. |
|
|
|
|
Logged
|
|
|
|
Rex Schimmer
Hero Member
Offline
Age: 69
Location: Fulton, CA
Posts: 1257
Only time and money prevent completion!
|
|
« Reply #6 on: April 03, 2009, 12:25:47 AM » |
|
I have a difficult time rationalizing the logic of the design of the type of gusset that the SCTA requires as it looks like it just wants to originate a tear in the tubing but it's their football so it's their game.
Rex
|
|
|
|
|
Logged
|
Rex
|
|
|
floydjer
Hero Member
Offline
Age: 54
Location: grand rapids, michigan
Posts: 813
"There is no duck side of the moon..."
|
|
« Reply #7 on: April 03, 2009, 08:53:28 AM » |
|
I have a difficult time rationalizing the logic of the design of the type of gusset that the SCTA requires as it looks like it just wants to originate a tear in the tubing but it's their football so it's their game.
Rex
Agree 100% on both points Rex. Also has about zero strength in compression load. J.B. |
|
|
|
|
Logged
|
I`d never advocate drugs,alcohol,violence or insanity to anyone...But they work for me.
|
|
|
Dynoroom
Global Moderator
Hero Member
Offline
Age: 55
Location: Chino Hills, Ca.
Posts: 1248
|
|
« Reply #8 on: April 03, 2009, 10:21:25 AM » |
|
I have a difficult time rationalizing the logic of the design of the type of gusset that the SCTA requires as it looks like it just wants to originate a tear in the tubing but it's their football so it's their game.
Rex
I don't want this topic to move too far from the question..... which has been answered correctly, but remember that many SCTA rules are written in blood. Such is the case here. The gusset pictured in the rule book is stronger than just a tube by itself. That was the intent of the rule. |
|
|
|
|
Logged
|
|
|
|
Richard Thomason
Sr. Member
Offline
Age: 64
Location: Brewster, WA
Posts: 388
|
|
« Reply #9 on: April 03, 2009, 11:32:42 AM » |
|
Their are other types of gussets that are stronger and will pass tech under inspection. Check out the saddle type gussets used in aircraft construction.
|
|
|
|
|
Logged
|
|
|
|
Schruiber
Full Member
Offline
Age: 52
Location: Stanwood, WA
Posts: 136
|
|
« Reply #10 on: April 03, 2009, 02:29:58 PM » |
|
I add to Richard's comment regarding techniques used in aircraft - the book: Construction of Tubular Steel Fuselages for example has a great amount of info that could be helpful for an LSR project. It may be a good basis to start a dialog with tech inspectors. You can now even download the book from http://www.actechbooks.com/subcategories/38/One reason to leave the corner open is to avoid too much welding in one area leading to a weaker weld and/or stress fractures; and only one side of the gusset is welded, either both on the same side or alternating. Now some of you may ask why all this airplane stuff? Well, in LSR - isn't the goal to fly really fast without lifting off?  Michael Werner |
|
|
|
« Last Edit: April 04, 2009, 03:12:13 AM by Schruiber »
|
Logged
|
|
|
|
willieworld
Hero Member
Offline
Age: 67
Location: 921 chicago ave modesto ca. 95351
Posts: 1818
|
|
« Reply #11 on: April 04, 2009, 10:59:39 AM » |
|
|
|
|
|
|
Logged
|
willie-dpombatmir-buchta
|
|
|
|
