Velocity Airplanes - The Velocity XL (XL: Extra Large) is an American hobbyist-built airplane manufactured by Velocity, Inc. This is a larger version of their Velocity SE canard pusher design.
The standard XL has a range of 875 nautical miles (1,620 km; 1,007 mi), an airspeed of 185 knots (213 mph; 343 km/h) and a power cruising speed of 75%.
Velocity Airplanes
The XL is available in fixed gear (FG) and retractable gear (RG) form and accommodates three or four passengers and a pilot. The five-seat versions XL-5 and TXL-RG-5 have three rear bch seats rather than other separate pairs of seats.
Velocity Se Kitplane Aircraft Airplane Desk Wood Model Big New
180 to 200 hp (134 to 149 kW), the Lycoming IO-540's 260 to 300 hp (194 to 224 kW), and the Continental IO-540 were available as kits from the manufacturer for all models. 350 hp (231 to 261 kW), Franklin 6A350C1 of 205 to 235 hp (153 to 175 kW).
Manufacturers can use these manufacturer's kits or build their own genset installations using various gensets of similar power output.
2,700 lb (1,225 kg) gross weight fixed landing gear version. By December 2011, forty had been completed and flown.
2,900 lb (1,315 kg) gross weight fixed landing gear version. Twenty-one were completed and flown in December 2011.
Rutan Velocity Xl V06
Retractable landing gear version, 2,700 lb (1,225 kg) gross. By December 2011, 150 had been completed and flown.
Retractable landing gear version, gross weight 2,900 lb (1,315 kg). By December 2011, eight were complete and flown.
The now-defunct Rocket Racing League used a highly modified Velocity XL FG airframe and Armadillo Aerospace 2,500-pound thrust liquid oxygen (LOX) and ethanol rocket fuel in its Mark-II X-Racer and Mark-III X-Racer destroyers. . Vehicles. The Mark-II used a modified standard fixed-gear Velocity XL airframe for rocket propulsion. During construction the Mark-III airframe was further customized for rocket racing, adding a canopy top, sector seat, control stick and other hansoms to the Mark-II along with rocket propulsion. The ego is a surprisingly durable thing. However, connect a pilot to this word and it becomes large and indestructible, so many builders try the first flight of a new aircraft rather than letting this type of pilot expert take it in the first place. Hey, to be honest, it usually works. But sometimes not.
On the theory that practice guarantees better results, mid-1980s kit manufacturer Velocity Aircraft offers a two-day training program for its range of Canard singles and twins. With nearly 700 Velocity examples flying in various ilks, the course is intended not only for builders, but also for buyers buying from the original builder or those who have changed hands a few times.
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But seriously, considering how effectively an airplane project can raise every penny, should you spend money on it? To find out, I recently spent a day reviewing the course at Velocity's home base in Sebastian, Florida. Let me give you the executive summary: The answer is yes. On the spectrum of aircraft handling characteristics, velocity is north of the challenge, but south of it is truly awkward. Training is a good idea.
Velocity owner Duane Swing: A major design challenge was giving the canard enough pitch authority to support two people in front of the CG. A large canard solution with a Fowler flap for the elevator. "So having two 250-pounders in the front seat of the Velocity solves the problem."
The reason for that has to do with the history of aircraft development. If you're not familiar, or have never known, you'd be forgiven for thinking Velocity is a Burt Rutten project. After all, with its prominent canard and swept wing, it looks like a scaled-up Long-Z. While this is a reasonably accurate description, it would be more accurate to say that it was inspired by Ratten, but he had nothing to do with the project.
In the mid-1980s, Long-Z builder Danny Maher decided that what the world really needed was a scaled-up version of the four-seat airplane. Maher did exactly that, using the plumb bob data points to increase the lines of Long-Z and take advantage of the measurements.
Velocity Velocity Xl Rg
Velocity CEO Duane Swing, who took over the company from Maher in 1992, says, "The main problem with trying to build a larger version of the Long-Z is the canard. The weight is no different because the back seat is in the CG . . . but the pilot is critical. He's probably 150 to 250 pounds," Swing says. .
But the Velocity was conceived as a four-place aircraft, with a more spacious cabin and two pilots in the front seats. "So now you've got two 250-pounders in the front seat and it becomes a really big problem," Swing said.
With no wheels or fins in the way, the Ingress is an easy plant-the-butt and swings the legs into the cockpit.
Maher tackled the noodle problem with another Long-Z builder, a NASA engineer, and after several iterations and wind tunnel tests, they settled on a large canard with a Fowler flap for the elevator control surface. "It's low, so when it turns down, it actually stretches the chord of the string.
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"So the problem of lifting two 250-pounders in the front seat of the Velocity is solved," Swing explains.
However, it is very simple. Canards' theory of operation is that with pitch control at the front of the aircraft, the flying surface is first stabilized so that the main wing never reaches the stall angle of attack.
But some aircraft, even those with conventional control surfaces, have a deep stall mode, although it takes effort to find it. Basically, a deep stall is one where there is insufficient pitch authority (or thrust) to bring the wing below the stall angle of attack.
Swing likes to tell the story that during early development, test pilot Carl Pascarel put the plane into a deep stall from which he was unable to recover. As he was about to bail out, he realized that vertical speed was no faster than his parachute, so St. Augustine steered the plane into a splashdown in the Atlantic Ocean. The plane floated due to foam and was towed to shore, repaired and flown again. The pilot was not injured.
Airborne Radar. Airplanes; Guided Missiles. 740 Airborne Navigation And Ground Surveillance V = Velocity 57 = Uncertainty In Pitch Angle 7 = Angle Between Horizontal Velocity Component And Direction Of Radiation
In effect, the solution is leading edge cuffs that lengthen the main wing chord and move the main wing stall angle 4 or 5 degrees away from the canard stall angle. Using constant speed props to change and provide more thrust eliminated the risk of deep stall, says Swing. But the plane has the unique flight characteristics of a pitch buck, which brings us to training.
Flight instructor Ingrid Meier, whose day job flies the airline's 737, runs the two-day Velocity School. It costs $1900 and involves five hours of groundwork and five flying landings. I will soon find out why.
A pilot who has built his own speed does not need a discussion of the system, but anyone who buys one will benefit from it. Not all airplanes are the same, and a pilot new to this type can pick up some useful pointers. (Half of those trained are buyers; half are builders.)
The company has airplanes on the hangar floor so the student can walk through the airframes to learn about the fuel system, landing gear hardware, and engine compartment, as I did. And there are the less obvious things like the oil cooler attached to the nose of the plane and the hoses that run through the cabin to the engine.
Answered: 19 6. The Airplane Is Traveling In A…
Mayor Paul Bertorelli introduced the aircraft, its systems, and the features it offers to owners who buy rather than build buildings with the same in-depth overview. The second day of the course focuses on landing, and once you bungle the first, you'll see why.
Meyer said he advises pilots to turn off the engine every 10 hours. If it had, it might have provided a valuable lesson and prop to the tractor pilot, who hadn't thought of it, and I certainly wouldn't have. Although I've flown pusher amphibs, I've never flown with the engine mounted at wing level, so another lesson: tires can lift FOD, which goes straight to the prop, so watch where you taxi.
It's a good idea to unscrew every 10 hours and see if anything comes loose.
As mentioned in the sidebar below, Velocity currently offers three models of its kits, the SE, the XL and the twin-engine V-twin. Retractable gear is an option on both singles, but standard in
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