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Pilatus PC-6.. A bit of history, and firsts WiPs !

Publié le par Hueyman

The PC-6 ? It's a swiss airplane, made by Pilatus Aircraft. The enterprise is located near the Pilatus mountain in Switzerland. The first model, flew on 4th May of 1959, powered by a Lycoming GSO-480-B1A6, a 340 HP piston engine. It was designed to be a light, solid and robust aircraft, a STOL one ( Short Take Off and Landing )

The results exceeded Pilatus's expectations, and now in 2012, the PC-6 remain the world's leading turboprop in the STOL category. The latest version( PC-6/B2-H4 ) is powered by the famous Pratt & Whitney Canada PT6-A34 Free Turbine Offering 750 Horspower ( but can also be found with the classic 680 SHP PT6-A27 ) , allowing it to bring 9 skydivers up to 4000 m ( 13000 Ft - F L 130 ) in less than 20 min under International Standard Atmospheric (ISA) conditions. This powerful powerplant, coupled with a Hartzell HC-D4N-3P ( fully featherable four-blade aluminium prop, with reverse thrust abilities ) permit very short landing distance ( 315 meters - 1030 Ft ). It's aslo able to dive from 4000 m ( 13000 Ft ) to runway in less than 2 minutes, diving straight from the sky without coming near VNE, and this is thanks to his propeller putting in Bêta range ( not in reverse as reversed propwash would disturb the incoming air and making plane uncontrolable, while also put so much force on the engine mounts that it could lead to catastrophic failures ) a mode which put the propeller blade picth near 0° ( no positive nor negative thrust ) so it acts like a big airbrake in disc shape.

Many versions has been built, using different Pratt & Whitney free turbine, or even some vintage Turbomeca Astazou ! The PC-6 saw action in Laos and near Cambodian border during Vietnam War ( you MUST watch " Air America " movie with Mel Gibson and Robert Downey Jr. )

Now, let me show you some actual WiPs of the external model. Unfortunatly, the progress is slow as both of us are really busy IRL ( I use that for In Real Life ), but I would love to get it finished by the end of next summer,

Enjoy and comments !

Cheers,

Hueyman

These are some WiP's, featuring the PT6A-27 Free Turbine, in early stage of development, you can actually see the prop governor, Bêta lever, RGB Static Pressure Port, the Np gauge ( showing the Prop speed in percent of max RPM, 100% is 2200 RPM )
These are some WiP's, featuring the PT6A-27 Free Turbine, in early stage of development, you can actually see the prop governor, Bêta lever, RGB Static Pressure Port, the Np gauge ( showing the Prop speed in percent of max RPM, 100% is 2200 RPM )
These are some WiP's, featuring the PT6A-27 Free Turbine, in early stage of development, you can actually see the prop governor, Bêta lever, RGB Static Pressure Port, the Np gauge ( showing the Prop speed in percent of max RPM, 100% is 2200 RPM )
These are some WiP's, featuring the PT6A-27 Free Turbine, in early stage of development, you can actually see the prop governor, Bêta lever, RGB Static Pressure Port, the Np gauge ( showing the Prop speed in percent of max RPM, 100% is 2200 RPM )
These are some WiP's, featuring the PT6A-27 Free Turbine, in early stage of development, you can actually see the prop governor, Bêta lever, RGB Static Pressure Port, the Np gauge ( showing the Prop speed in percent of max RPM, 100% is 2200 RPM )
These are some WiP's, featuring the PT6A-27 Free Turbine, in early stage of development, you can actually see the prop governor, Bêta lever, RGB Static Pressure Port, the Np gauge ( showing the Prop speed in percent of max RPM, 100% is 2200 RPM )

These are some WiP's, featuring the PT6A-27 Free Turbine, in early stage of development, you can actually see the prop governor, Bêta lever, RGB Static Pressure Port, the Np gauge ( showing the Prop speed in percent of max RPM, 100% is 2200 RPM )

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