Скачать или смотреть Bell 407 Startup and Take Off - CBS LA (Helicopters Inc )

In 1993, Bell began the development of the New Light Aircraft as a replacement for its Model 206 series. The program resulted in the 407, a development of Bell's LongRanger.[2] A 206L-3 LongRanger was modified to serve as the 407 demonstrator.[2] The demonstrator used hardware for the 407 and added molded fairings to represent the 407's wider fuselage then under development.[2]

The demonstrator was first flown on April 21, 1994, and the 407 program was publicly announced at the Heli-Expo in Las Vegas, Nevada, in January 1995.[2][3] The first 407 prototype (C-GFOS) accomplished its maiden flight on June 29, 1995, and the second prototype (C-FORS) followed on July 13, 1995. After a short development program, the first production 407 (C-FWQY/N407BT) flew on November 10, 1995.[1]

The Bell 407 features the four-blade main rotor developed for the OH-58D (Model 406). The blades and hub use composite construction without life limits, and provide better performance and a more comfortable ride. The 407's fuselage is 8 inches (20 cm) wider, increasing internal cabin space, and includes 35% larger main cabin windows. The more powerful Rolls-Royce/Allison 250-C47 turboshaft allows an increase in Maximum Takeoff Weight and improves performance at hotter temperatures and/or higher altitudes.[2] The 407's airframe is generally similar to the LongRanger, but includes a carbon fiber composite tailboom. The helicopter has standard seating for two crew and five cabin seats.[4]

The 407 was certificated by Transport Canada on February 9, 1996, with the FAA following shortly after on February 23.[1][5] Full production began in 1996 at Bell's Mirabel, Quebec, Canada plant and produced 140 airframes in 1997, to fill the initial orders.[4]

In 1995, Bell tested a shrouded tail rotor on the 407,[3] but did not proceed with it. For a time, Bell studied developing the Model 407T twin-engine variant, but instead chose to develop the essentially all-new twin-PW206D powered Bell 427.[2]

Bell began deliveries of the 407 in 1996. The 1,000th helicopter was delivered on June 15, 2010.[1]