The XF-35 is only 1.13 lbs. (513 grams). The XF-35 offers significant fuel savings to operators wishing to stay with the added security of a twin-cell vest.
10 year frequency of inspection.
USA: FAA TSO-C13f
UK: CAA No. AR01445
Germany: LBA No. 40.321/33
Seems to be of good quality, but canâ€™t really evaluate it beyond that because I havenâ€™t had to use it ðŸ˜Š
Yes, they have Co2 cartridges to inflate the vests.
No, this part # does not come with a whistle. It is available with the optional whistle, but only as a special order, Please contact sales for price, lead time, and minimum order for XF-35 with whistle.