AirSpaceMag.com

If you haven’t seen it yet, take a look at this video of the Martin Aircraft Company’s recent mile-high test of its personal jetpack and safety parachute system. The flight topped out at 5,000 feet, but could have gone higher. While a dummy was on board for this test, the New Zealand-based company is marketing their $100,000 jetpack as personal transportation, with special appeal to military and rescue workers. The design goal is to fly for up to 30 minutes at top speeds of 63 miles per hour. And if the gas-powered, two-stroke piston engine conks out, there’s always the parachute.

Virgil Tracy (foreground) flanked by bro Gordon (orange sash), and engineer "Brains" (who designs the team's equipment).

Who can forget billionaire ex-spaceman Jeff Tracy and his five sons (Scott, Virgil, Alan, Gordon, and John), each named after a Mercury astronaut? Remember how they—through their organization (International Rescue)—um…rescued people…internationally? Ok, so they were puppets. Deal with it, people!

The Royal Air Force Museum (London) invites fans of the 1960s television show Thunderbirds to revisit their inner child (as well as the museum) on May 14 and “play with giant sized versions of classic children’s games whilst listening to music of the 60s and 70s.” The museum will also have on display original models, and will air episodes from Thunderbirds and Captain Scarlet in the museum’s cinema. Sylvia Anderson, the voice of Lady Penelope and the co-creator of the show, will discuss her career, the actors she worked with, and the inspiration behind the puppets. (Anderson and her husband are the creative team also responsible for Space: 1999, starring the wooden Barbara Bain and the over-the-top Martin Landau.)

Screenshot of Thunderbird 2 copyright Carlton International Media Limited.

Our marionette heroes use a variety of air- and spacecraft to carry out their missions. Thunderbird 2 (usually piloted by son Virgil Tracy, he of the intimidating eyebrows, above), is a large green VTOL aircraft used in most of the team’s earth-based rescue missions. The big bird can fly anywhere in the world without refueling, and cruises along at 2,000 mph, but can achieve 5,000 mph when needed. Amazingly, it is not the team’s fastest mode of transport. That honor goes to Thunderbird 1 (typically piloted by Scott Tracy), a hypersonic rocket that can travel 15,000 mph, or Mach 22.6. You’d think that a rocket capable of that speed would have extremely complex controls, but no. Thunderbird 1 is controlled by a mere two control levers. Life is so easy when you’re a puppet!

Screenshot of Thunderbird 1 copyright Carlton International Media Limited.

Lockheed Martin's transformer concept.

The defense research agency DARPA recently selected six companies to participate in a year-long program to transform a Humvee-like vehicle into an aircraft. Lockheed Martin and AAI Corporation are asked to supply something that can “avoid traditional and asymmetrical threats while avoiding road obstructions,” according to DARPA’s press release.

The program hopes to “combine the advantages of ground vehicles with helicopters.” But is this scenario even plausible? As John Grossmann wrote for us in January 1996 (“Auto Pilots”), “The challenges of building [a flying car] are perhaps exceeded only by the challenges of selling it. Because a vehicle worthy of both land and air has compromise written all over it, the technical challenges are numerous. The common elements are few: fuel tank, steering wheel, passenger and baggage compartments, wheels, and engine. For flight you need wings, ailerons, a horizontal stabilizer, a vertical tail, rudder, elevators, and a propeller, none of which has any business on a car. For the road, you need a drive train and bumpers, not to mention rear-view mirrors and catalytic converters—all dead weight in the air.” (Even Terrafugia’s “roadable aircraft” lists this as a caveat: “Terrafugia’s philosophy is to design a vehicle for pilots that brings additional ground capability to an airplane instead of attempting to make a car fly.”)

AAI Corporation's concept.

DARPA’s vehicle is supposed to carry four troops and travel up to 250 miles (that’s both on land and in the air). First phase development will include propulsion systems, wing structures, and the advanced flight control system.

The flight control system, by the way, will allow for semi-autonomous flight, according to the press release, “permitting a nonpilot to perform VTOLs [Vertical Takeoff or Landing], transition into forward flight, and update the flight path in response to changing mission requirements or threats.”

Aerocar. Courtesy NASM.

Did no one think of the Aerocar (left) as a solution to this problem? If I saw a bunch of Marines piling out of that bad boy, I’d run.

Artwork: Wright Patterson AFB.

The Air Force’s X-51A Waverider is being readied for its first hypersonic test flight on Tuesday, May 25. If all goes well, the scramjet-powered vehicle will fly for five minutes and hit Mach 6 before coming down into the ocean off the California coast. Project engineers hope to collect lots of data, while breaking the previous record for a scramjet flight, just 10 seconds, set by NASA’s X-43 in 2004.

Update on the April 22 HTV-2 hypersonic test: No joy—the vehicle stopped transmitting data nine minutes into its flight.

DoD photograph by Cpl. James L. Yarboro, U.S. Marine Corps.

What springs to mind when thinking of the Humvee? Its sleek, aerodynamic lines? Well, no. But that didn’t stop DARPA from announcing (in a 58-page proposal) its plans for combining an SUV-type ground vehicle with Vertical Take Off and Landing (VTOL) capabilities. In other words, a flying Humvee.

DARPA’s “desirable field design considerations” (found at FastCompany.com) require a payload capability of 1,000; the ability to carry 4 troops and their gear; maximum dimensions of 8.5 feet wide, by 9 feet high, by 30 feet long; and that the vehicle be capable of VTOL. Added perks would include automated takeoff and landing, and the ability to make use of standard military fuel, primarily JP-8.

The UK Register reports that a prototype of the “Transformer TX” is expected by 2015, at a cost of no more than $43 million.