Useless or usefull information for you all i dont know but thought id post it anyway.

We have a pair of GRP seats which are pretty standard there should be a picture in my photo archive but if theres isn't ill put one in. Speaking to some who thought there might be requirement for seats to have a minimum height as to support or restraine your head.

So called SVA to check this out and said there isn't and that seat just needs to be fixed securely.

If your harness's pass through the seats and bear any load because of this, they have to be of 'sufficient strength' to bear the loads.

If your belts pass through without altering angle too much they should be OK, but if they load up as you tension them, the SVA inspector may have to make a decision regarding the strength of the seats

If your harness's pass through the seats and bear any load because of this, they have to be of 'sufficient strength' to bear the loads.

If your belts pass through without altering angle too much they should be OK, but if they load up as you tension them, the SVA inspector may have to make a decision regarding the strength of the seats