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April 2012 Archives

The Reno air race crash

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The FAA is taking a lot of stick for its slack regulation of air race and air show operations, and rightly so. The NTSB, investigating the crash of an air-race-modified P-51D Mustang last September at Reno, Nevada has made recommendations on just about every possible aspect of the FAA's oversight.

ghost.jpg
This is "The Galloping Ghost". Would you recognise that as a Mustang? I'd struggle! It's been trimmed for pure speed, with other aerodynamic considerations taking a back seat.

One of the NTSB criticisms was that the aircraft was extensively modified with no oversight of the modification process. Then it flew the Reno course at the limits of its performance envelope in front of the crowd without having been tested. No trial runs. No FAA rules requiring it.

Ten people in the crowd were killed by the crashing aircraft, and more than 60 were severely injured.

Here's an NTSB diagram showing how extensive the modifications were. Compare it with the photograph at the top of this post.

Poster_3.jpgAir racing is a thrilling sport, and inherently dangerous. That's why we go to see it. The pilots and the operators know what the risks are, and have the task of balancing them. But the spectators should not face a high risk of death. This crowd did because of where it was: at the apex of the racetrack's high-G final turn.

NTSB head Deborah Hersman says she doesn't intend to bind air racing with paranoic rules, she just wants to make sure common sense is applied to its planning and execution, and says the FAA's guidelines are not up to the job. They aren't.

But I expect they will be.




Shady Lady: an epic true story of a B-24 that crashed and flew again

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Tristan Loraine, a professional pilot turned film director, goes around the world looking for real aviation stories to bring back to life. He's certainly done it with Shady Lady, the filmed story of an extraordinary ultra-long-range mission by a USAF Consolidated B-24 Liberator in the Second World War.

The aeroplane ran out of fuel and crash-landed in Australia's remote Northern Territory, but has since flown again.

Such was the impact of the gripping but forgotten story that Tristan uncovered during filming, that President Obama issued a Presidential Citation to the crew last year. It was presented in Sydney to the aircraft commander's widow.


What to do if you are intercepted by a Typhoon (you better get it right)

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One way of being sure of getting a hostile intercept by a fully armed RAF Typhoon is to get your navigation wrong and penetrate the prohibited airspace over much of London and its surroundings during the 2012 Olympic Games.

In fact, at the time of the Olympics, if you diverge from your flight plan anywhere in South East England, the RAF will take about the same level of interest in you as they would have done in 1940.

If you are intercepted, you'd better comply - and quickly too. 

Especially near the Olympics. Security measures against any form of attack from the ground or air, are already fine-tuned. Olympic venues have, historically, been popular places for staging acts of terrorism or protest.

Advice for pilots on how to act upon interception specifically in the 2012 Olympic areas is here. It's based on the standard international intercept protocol, but there are variations you had better know.

Here's a page from the instructions:
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Basically the Typhoon will appear on your left and rock its wings. If you don't notice, it'll break right across your bow in dramatic fashion, rocking its wings. If really set on indicating serious intent, the pilot will also ignite flares. That would help at night.

The drill in either case is to rock your wings in acknowledgement, and follow the Typhoon. It's unlikely to be on its own, so don't try and break away - you're being tailed.

The official instruction describing your response is: "Rock your wings, follow the Typhoon, turn away from London".

If you're in a slow machine like a light aircraft or helicopter, your interceptor may be an RAF helicopter with a crewman standing at the open side door with a big notice reading FOLLOW ME. Do it. 

It doesn't say what happens if you fail to follow the procedure. I'll leave that to your imagination.

The Faroes and RNP

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This shot of the runway at Vagar, Faroe Islands is copied from Atlantic Airways' inflight magazine Atlantic Review. It's not a recent photograph, and things have changed since then. Not dramatically, but significantly.

This blog post complements the previous one which describes - in pictures - the first commercial operation into Vagar by Atlantic Airways' new Airbus A319, using the new RNP-AR satellite-guided precision approach procedure.

Here we look at some of the enabling changes that led to the introduction of RNP, and the challenges faced by this airline that serves the Faroe Islands.

Runway in the magazine.JPGSince this shot was taken, the magnetic pole has shifted a little, and the runway designation is no longer 13/31, it's 12/30. It has also been lengthened to prepare for A319 operations.

An Atlantic Airways shot (below) taken from above the approach to 30, also before the runway was lengthened, gives a good picture of the terrain aviators face approaching the other end - runway 12.

App to 30 Vagar.jpgHere (below) is the approach to 30 on the newly lenthened runway, which I took from the A319 on its first commercial schedule, inbound from Copenhagen on 28 March.

Final 3.jpgVagar's runway has been lengthened from 1,250m to 1,799m (5,847ft) by extending both ends on raised embankments. Here are the approach light stanchions for runway 12 in the shadow of the raised runway threshold...

App lights to 12.2.jpgAlso evident in the magazine picture is that Atlantic's entire fleet of BAE Systems Avro RJs had converged on Vagar that day. They didn't have the A319 at the time. They still have some RJs now as well as the Airbus.

The approach to runway 12 is reckoned to be the more picturesque, but I didn't get to fly it in the aeroplane. 

However Atlantic Airways' chief executive Magni Arge took me for a brief drive along the fjord that channels the final approaches. This shot looks along the water toward runway 12

View of rwy 12 app path 2.jpg
...and here is a chart showing how the various RNP approaches to 12 all end up flowing along the inlet toward the runway

Z appch to 12.JPGHere's how it looks when you get a little closer to the runway 12 threshold, but seen from sea level...

Rwy 12 threshold from below.jpgYou can see the raised threshold area for 12.

Meanwhile, since that time Atlantic have sent me a beautiful picture of the 12 approach taken from above the inlet on a perfect day...

App to 12 Vagar.jpgThat picture was also taken before the runway was lengthened, but it gives a perfect picture of how the terrain intrudes on the left side of the approach path, forcing a right turn on short final for 12.

There is also some interesting terrain waiting for the unwary at the entrance to the inlet...

View 3.jpgBelow is a picture of Magni Arge addressing the passengers and crew at Copenhagen Kastrup before the first scheduled commercial A319 trip to Vagar. A historic moment for Atlantic, and for the Faroes.

Magni Arge.jpgThey arrived on time, and safely.

Thumbnail image for Aircraft on Vagar pan.jpg