[Music]
>>Tonight we're testing three more hangar bays in the WRAIF.
These are gonna be similar to the same test that we did in building 4802.
The cones and the tape represent aircraft arrangement in here,
and that's what we're using for the test criteria tonight.
The test criteria is that we get 90% coverage under the majority of the wing area within one minute,
and that we also hit one meter for the entire volume of the hangar within four minutes.
>>All right, getting ready...
[Fire alarm]
[Water/foam falling]
>>Hit the abort...hit the abort...
>>The system in 4840 here is different from the others because we've got all the systems going into the same
building. So, in between each test, we have to drain each system and reset it, so that we're testing the
building just like it would be when it's in its final condition.
>>3, 2, 1, go...
[Fire alarm]
[Water/foam falling]
>>These high-expansion foam systems are meant to give 100% floor coverage for the protection
of the aircraft. It's not just for fuel spill fire, but also for protection of adjacent aircraft that would be to that,
and then also for the building protection, once that goes down.
[Fire alarm]
[Water/foam falling]