jamie
03-03-2008, 05:10 PM
I'd been asked to splice some tenex eye eye slings up but they needed super short splices. I used a locking brummel a 2" bury then another 1" reducing the hope to half diameter then another 1" finishing the taper.
I was concerned about this not being strong enough as it would be used single legged. I managed to get to a shop that can load test things. I gave them a sling with my splice on one end and a samon 12 strand class 1 splice on the other end.
The samson splice was done in their office to samsons directions using a ball point pen as a fid. i buried it more than it should have been then pulled the eye backout to align the eye marks. I never had any whipping twine so it wasn't whipped. I dont see how this could have affected my results.
The sling broke at around 4000lbs (c.1800kgs). Their machine is not set up to record the exact point of failure.
Halfway through the test on the splice on the Samson end a half strand snapped at the point of 'final taper' as the splice finishes. What shocked me most was that the splice failed at the point of first taper on the samson end.
I was expecting my splice to fail earlier than the one in accordance with samsons instructions. My splice came out unscathed. Overall i am happy that my splice is able to sustain that load. Although it is not upto the strength of the MBS of the rope i still feel that 4000lbs is strong enough for the application.
Jamie
I was concerned about this not being strong enough as it would be used single legged. I managed to get to a shop that can load test things. I gave them a sling with my splice on one end and a samon 12 strand class 1 splice on the other end.
The samson splice was done in their office to samsons directions using a ball point pen as a fid. i buried it more than it should have been then pulled the eye backout to align the eye marks. I never had any whipping twine so it wasn't whipped. I dont see how this could have affected my results.
The sling broke at around 4000lbs (c.1800kgs). Their machine is not set up to record the exact point of failure.
Halfway through the test on the splice on the Samson end a half strand snapped at the point of 'final taper' as the splice finishes. What shocked me most was that the splice failed at the point of first taper on the samson end.
I was expecting my splice to fail earlier than the one in accordance with samsons instructions. My splice came out unscathed. Overall i am happy that my splice is able to sustain that load. Although it is not upto the strength of the MBS of the rope i still feel that 4000lbs is strong enough for the application.
Jamie