Author Archives: Aug Rinz

Morning rush hour at EGLL

http://sploid.gizmodo.com/rush-hour-at-one-of-the-worlds-busiest-airports-means-a-1791636737

London’s Heathrow Airport is one of the busiest airports in the world, so it’s no surprise that if you look up in the sky during the morning rush, you’ll see a line of airplanes swarming around, patiently waiting to land on its runways. This video from TopFelya shows 30 minutes of morning arrivals and there’s a plane coming in every other minute.

I love how the planes seem to come from every direction in the background until they get in a nice little queue (we are across the pond, y’know) so that they can touch down in an orderly fashion. Handling air traffic control at Heathrow must be a never ending game of stress.

New U.S. Air Force One will be a Boeing 747-8

From the US Air Force Webpage

AF Identifies Boeing 747-8 platform for next Air Force One

WASHINGTON (AFNS) — Secretary of the Air Force Deborah Lee James, in coordination with the Undersecretary of Defense for Acquisition, Technology and Logistics Frank Kendall, has determined the Boeing 747-8 will serve as the next presidential aircraft, commonly known as Air Force One.

“The presidential aircraft is one of the most visible symbols of the United States of America and the office of the president of the United States,” James said. “The Boeing 747-8 is the only aircraft manufactured in the United States (that), when fully missionized, meets the necessary capabilities established to execute the presidential support mission, while reflecting the office of the president of the United States of America consistent with the national public interest.”

Analyses of the capability requirements conclude a four-engine, wide-body aircraft is required to meet the needs of the Air Force One mission. Market research determined there are two four-engine platforms that could meet the requirements; the 747-8 manufactured by Boeing in the state of Washington, and the A380 manufactured by Airbus in Toulouse, France.

The decision, made official through a Determinations and Findings document, authorizes the commercial aircraft purchase by other than full and open competition. This decision, in conjunction with the notification of the Air Force’s intent to award a sole source contract to Boeing for the modification of the 747-8, allows discussions with Boeing that will likely lead to a contract for the aircraft platform as well as the modifications necessary to missionize the aircraft.

“This decision is not a contract award to procure 747-8 aircraft,” said Col. Amy McCain, the Presidential Aircraft Recapitalization (PAR) program manager. “We still need to finalize the overall acquisition strategy and conduct risk-reduction activities with Boeing to inform the engineering and manufacturing development contract negotiations that will define the capabilities and cost.”

The Air Force wants to own enough of the technical baseline to permit competition for sustainment throughout the aircraft’s planned 30-year life cycle. Competition can keep costs down, spur innovation and provide options.

“We are committed to incorporating competition for subsystems of the missionized aircraft as much as practicable, and will participate substantively in any competitions led by the prime contractor,” James said.

“The current fleet of VC-25 presidential aircraft has performed exceptionally well, a testament to the Airmen who support, maintain and fly the aircraft,” James said. “Yet, it is time to upgrade. Parts obsolescence, diminishing manufacturing sources and increased down times for maintenance are existing challenges that will increase until a new aircraft is fielded.

“The Air Force provides the president with safe and reliable air transportation with high levels of security and communication capability as the alternate airborne White House,” she added. “This platform will meet the requirements necessary to provide that level of service for future presidents.”

The secretary is clear affordability will be a key element of the PAR program.

“The program will use multiple strategies, such as the use of proven technologies and commercially certified equipment, to ensure the program is as affordable as possible while still meeting mission requirements,” James said. “We will insist upon program affordability through cost conscious procurement practices.”

 

 

What it’s like to fly at 70 000 feet

Except for an SR-71, there is almost no greater aviation experience than being at altitude in a U-2… (Spaceflight doesn’t count for this).

At 70 000 feet, your blood will boil if unpressurised, and the outer air temprature is -61°C. Good thing there are space-suits to wear!

James May of Top Gear fame, took a flight in 2009 for a BBC TV special  to commemorate Apollo 11. First video is the feature itself, second video is of some additional footage.

Note that the indicated airspeed at 70 000 feet is only 104 knots! (still doing 0.7 Mach, though!). I wonder what his groundspeed was? At this altitude, there is very little difference between stall speed and maximum speed, the so-called “coffin corner”.

Also, here is a great description from a highly experienced pilot with his first flight in a U-2