The Cobalt Co50 Valkyrie

The Valkyrie is one of the fastest piston aircraft on the market, and is designed to be the safest.

Inspired by classic fighter jets with clean lines and premium finishes, the Valkyrie impresses with understated elegance.

The exterior comes in a range of custom finishes including dark colors, typically harder on composites. The flight controls feature full pushrod-bellcrank precision mechanisms, and the retractable landing gear is machined in solid high-performance alloys.

    The interior features premium hand stitched leather seats, customizable platings and trim materials. It comfortably seats five people, including the pilot, with ample storage for golf clubs, skis and suitcases. It also has the largest one-piece canopy in the world, providing an unrivaled visibility to pilots and passengers alike.

Cobalt promotes the highest standards of safety in the industry. The Valkyrie has a “canard” configuration, with a forewing that acts as an aerodynamic fuse to prevent stalls. An airframe parachute is also provided as an option.

Cobalt manufactures the Valkyrie exclusively in California to ensure exceptional quality standards, fast delivery to early buyers, and modern customer service.

The Cobalt Co50 Valkyrie is a single-engine, four to five-seat homebuilt aircraft, arranged in a canard, pusher configuration. A light aircraft intended for private ownership, it is being developed by Cobalt Aircraft of San Francisco, California, United States.⁠⁠⁠⁠

The composite design incorporates retractable landing gear, a pusher engine configuration, a canard, twin vertical stabilizers and automatic airbrakes. A ballistic parachute is provided as an option. Passenger entry is by a large forward fold down door. Kit production is planned to be carried out in the United States.

Initially the Co50 will be sold as a kit for amateur construction, but the manufacturer intends to eventually achieve type certification. Certification is unlikely to occur before 2018, not least due to the electronics Cobalt has chosen being untested for aircraft use.

#General_characteristics
#Crew: 1 Pilot
#Capacity: 3 to 4 Passengers
#Length: 30 ft (9.1 m)

#Wingspan: 30 ft (9.1 m)
#Height: 10 ft (3.0 m)
#Max_takeoff_weight: 3,417 lb (1,550 kg)
#Fuel_capacity: 109 U.S. gallons (410 L; 91 imp gal)
#Powerplant: 1 × Continental TSIOF-550-D turbocharged piston aircraft engine, 350 hp (260 kW)

#Performance

#Maximum_speed: 250 kn (288 mph; 463 km/h) maximum cruise at FL250
#Cruise_speed: 250 kn (288 mph; 463 km/h) economy cruise at FL220
#Range: 1,434 nmi (1,650 mi; 2,656 km) economy cruise at FL220
#Service_ceiling: 25,000 ft (7,600 m)
#Time_to_altitude: 12 minutes to 10,000 feet

#Avionics

#Garmin G3X Touch

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Do you know in helicopters, auto-rotation can be performed in the event of a complete tail rotor failure?

The tail rotor is a smaller rotor mounted so that it rotates vertically or near-vertically at the end of the tail of a traditional single-rotor helicopter. The tail rotor's position and distance from the center of gravity allow it to develop thrust in the same direction as the main rotor's rotation, to counter the torque effect created by the main rotor. The tail rotor drive system consists of a shaft powered from the main transmission and a gearbox mounted at the end of the tail boom. And there's no separate engine to drive the tail rotor, it's driven by the main engine.

The most common reason for autorotation is an engine malfunction or failure, but autorotation can also be performed in the event of a complete tail rotor failure, or following loss of tail-rotor effectiveness, since there is virtually no torque produced in an autorotation. If altitude permits, autorotations may also be used to recover from vortex ring state. In all cases, a successful landing depends on the helicopter's height and velocity at the commencement of autorotation 

At the instant of engine failure, the main rotor blades are producing lift and thrust from their angle of attack and velocity. By immediately lowering collective pitch, which must be done in case of an engine failure, the pilot reduces lift and drag and the helicopter begins an immediate descent, producing an upward flow of air through the rotor system. This upward flow of air through the rotor provides sufficient thrust to maintain rotor rotational speed throughout the descent. Since the tail rotor is driven by the main rotor transmission during autorotation, heading control is maintained as in normal flight.

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F-15 Eagle

Credit: U.S. Air Force photo/Staff Sgt. Christopher Hubenthal

The F-15 Eagle is a twin-engine tactical fighter designed by McDonnell Douglas in 1967. The all-weather plane is designed to gain and maintain air superiority over enemy forces during aerial combat, which involves holding dominant positions in the sky. The F-15 Eagle first flew in July 1972, and officially entered service in the U.S. Air Force in 1976.

F-15s are capable of flying at speeds greater than Mach 2.5 (1,650 mph, or 2,655 km/h), and are considered one of the most successful planes ever created. The F-15 Eagle is expected to continue flying in the U.S. Air Force beyond 2025, and have also been exported to a number of foreign nations, including Japan, Israel and Saudi Arabia.

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Malaysia confirms debris found in Tanzania is from MH370...!!!

*Malaysia said debris discovered on coast of Tanzania was from MH370.

*Malaysia Airlines jet MH370 disappeared in 2014, with 239 people on board.

*A search of more than 2 years has turned up few traces of the Boeing 777.

According to Reuters Malaysia said on Thursday that a large piece of aircraft debris discovered on the island of Pemba, off the coast of Tanzania, in June, was from the missing Malaysia Airlines jet MH370.

A search of more than two years has turned up few traces of the Boeing 777 aircraft that disappeared in March 2014, with 239 passengers and crew on board, soon after taking off from Kuala Lumpur, the Malaysian capital, bound for Beijing.

The debris, an outboard flap, will be examined further to see if it can yield any insight into the circumstances around the missing plane, Malaysian Transport Minister Liow Tiong Lai said in a statement.

Investigators have previously confirmed a piece of plane debris found on the French island of Reunion in July 2015 as being part of MH370. They are examining several other pieces of debris found in Mozambique, South Africa and Rodrigues Island, a territory of Mauritius.

Source:- Jetline Marvel

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Do you know why that the Helicopters can't increase their forward speed ?

Even the speediest helicopters move slowly compared to their fixed wing equivalents.

The reasons for this are ultimately to do with the fact that a helicopter has rotating wings. It is the helicopter’s spinning rotor blades which produce lift and enable the helicopter to fly, and these only produce an equal amount of lift in a still air hover.

When there is any wind at all, or the helicopter moves forward, the advancing blade (the forward moving one) has more air blowing over it – i.e., a higher airspeed – than the retreating blade (the backward moving one), and therefore produces more lift.

To counteract this dissymmetry of lift, we allow the blades to flap up and down, and this flapping equalises the lift across the rotor disc as the blades “flap to equality.” But a side effect of this flapping is that when the cyclic is moved forward to increase speed, the rotor disc tilts forward initially, but then flaps back, and further forward cyclic movement is required in order to continue to accelerate.

This phenomenon, known as “flapback,” occurs throughout the whole speed range of the helicopter. So if we want to increase our speed, the cyclic has to be moved progressively further and further forward. There will come a point at which the cyclic is on its forward limit, and the helicopter cannot fly any more quickly.

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Do you know they use kerosene as a fuel for jet engines?

Kerosene fuel is a specialized type of petroleum-based fuel used to power aircraft jet engines. It is generally of a higher quality than fuels used in less critical applications, such as heating or road transport, and often contains additives to reduce the risk of icing or explosion due to high temperature, among other properties.

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