HAWK IN THE BARRIER AT MONA
Join Date: Jun 2011
Location: Taif-Saudi Arabia
Age: 64
Posts: 229
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Sorry to be late on this thread folks but as this is my speciality (for my sins) I'll clear up a few points.
Tornado is certainly cleared to engage the Barrier, Typhoon is not.
Leon... There are no longer steel cables in the net these days, the RAF uses the British All Nylon Net (BAN) on the Mark 12 system which is antiquated to say the least, as is the RHAG.
I was on the Barrier crew at Tabuk the night the Tornado hit the approach end net. I won't go into details but it was a sod of a job sorting out. All I will say is that for a net to go up on it's own can only happen if there is a short in the underground control cable (17 wires) and only if 2 particular wires short together which I have never seen happen in 36 years in this field!
On the more modern systems (that the RAF doesn't use) the retardation force is very similar to that of the cable although run out distances can be set to provide a shorter stopping distance it should still not exceed 2.5G.
The most modern nets known as HP40 normally will cause minimal damage to the aircraft but before any of the FJ fraternity think about driving your 20 ton tricycle into one for fun bear in mind that they do cost around $100,000 a pop!
Tornado is certainly cleared to engage the Barrier, Typhoon is not.
Leon... There are no longer steel cables in the net these days, the RAF uses the British All Nylon Net (BAN) on the Mark 12 system which is antiquated to say the least, as is the RHAG.
I was on the Barrier crew at Tabuk the night the Tornado hit the approach end net. I won't go into details but it was a sod of a job sorting out. All I will say is that for a net to go up on it's own can only happen if there is a short in the underground control cable (17 wires) and only if 2 particular wires short together which I have never seen happen in 36 years in this field!
On the more modern systems (that the RAF doesn't use) the retardation force is very similar to that of the cable although run out distances can be set to provide a shorter stopping distance it should still not exceed 2.5G.
The most modern nets known as HP40 normally will cause minimal damage to the aircraft but before any of the FJ fraternity think about driving your 20 ton tricycle into one for fun bear in mind that they do cost around $100,000 a pop!
