Attachment factor of 1.33 to the seating system
Attachment factor of 1.33 to the seating system
(OP)
Hi guys,
Is there anybody who has a clear idea on the attachment factor of 1.33 in the seat design ?
According to FAR, the factor is required to the attachment of
- seat to the structure
- belt/harness the the seat or the structure
Therefore I understand for example,
- It doesn't have to be applied to the buckle since it's not an attachement in the belt assembly.
- The backwall which holds the shoulder harness fitting has to be substantiated by the ultimate load x 1.33 in analysis.
- etc.
I look forward to getting valuable comments from anybody, especually DER.
Thanks,
kilbchoi
Is there anybody who has a clear idea on the attachment factor of 1.33 in the seat design ?
According to FAR, the factor is required to the attachment of
- seat to the structure
- belt/harness the the seat or the structure
Therefore I understand for example,
- It doesn't have to be applied to the buckle since it's not an attachement in the belt assembly.
- The backwall which holds the shoulder harness fitting has to be substantiated by the ultimate load x 1.33 in analysis.
- etc.
I look forward to getting valuable comments from anybody, especually DER.
Thanks,
kilbchoi





RE: Attachment factor of 1.33 to the seating system
Steven Fahey, CET
"Simplicate, and add more lightness" - Bill Stout
RE: Attachment factor of 1.33 to the seating system
So there's no need to use it for the seat itself, but for example for the stud to attach it to the seat rail.