- 11

- 0

## Main Question or Discussion Point

Hi.

Please excuse me if this is just too banal for this site, but we have a long-standing "real-world" problem that we need answers for and I am smart enough to know that I need to ask others ( = you guys ) for help.

We normally carry up to 19 passengers but, during training and occasionally for our Customers we have to carry freight in the passenger cabin. There is a load limit to our floor, and we have to secure whatever freight we carry against decelerative forces so that we don't kill people in the aircraft in the event of a crash. While it is simple to make sure that we don't exceed the floor loading limits (in this case 1500 daN per square metre) it is less easy to figure out how much extra stress we place on the floor by tensioning the straps which tie the freight down. An important detail is that we have to secure the freight against 4g forwards acceleration, and there are other criteria.

I can provide more details to help with the calculation, but can anyone point me in the right direction to solve for this (or, better yet, do the sums for me)?

Thanks in advance

BOING

Please excuse me if this is just too banal for this site, but we have a long-standing "real-world" problem that we need answers for and I am smart enough to know that I need to ask others ( = you guys ) for help.

We normally carry up to 19 passengers but, during training and occasionally for our Customers we have to carry freight in the passenger cabin. There is a load limit to our floor, and we have to secure whatever freight we carry against decelerative forces so that we don't kill people in the aircraft in the event of a crash. While it is simple to make sure that we don't exceed the floor loading limits (in this case 1500 daN per square metre) it is less easy to figure out how much extra stress we place on the floor by tensioning the straps which tie the freight down. An important detail is that we have to secure the freight against 4g forwards acceleration, and there are other criteria.

I can provide more details to help with the calculation, but can anyone point me in the right direction to solve for this (or, better yet, do the sums for me)?

Thanks in advance

BOING