Entwicklung
The Bell 412 is a twin-engine utility helicopter of the Huey / Iroquois family manufactured by Bell Helicopter. It is a development of the Bell 212, with the major difference being the composite four-blade main rotor. Development began in the late 1970s with two Bell 212s being converted into 412 prototypes. An advanced four-blade main rotor with a smaller diameter replaced the 212's two-blade rotor. The Bell 412 prototype first flew in August 1979.
Die Bell 412 ist ein zweimotoriger Mehrzweck-hubschrauber der Huey / Iroquois-Familie von Bell Helicopter. Es ist eine Weiterentwicklung der Bell 212, wobei der Hauptunterschied der Vierblatt-Hauptrotor ist. Die Entwicklung begann in den späten 1970er Jahren mit zwei Bell 212, die in 412 Prototypen umgewandelt wurden. Ein fortschrittlicher Vierblatt-Hauptrotor mit einem kleineren Durchmesser ersetzte den Zweiblatt-Rotor der 212. Die Bell 412 Prototyp flog erstmals im August 1979.
Versionen
412EP
412EP
Operational history
Einsatzgeschichte
Royal Thai Police
Royal Thai Police
Royal Thai Police
Royal Thai Police
Royal Thai Police
2609 ready for a flight
Besides the 2605 the Royal Family also uses 2608 as Royal VIP Helicopter
2608 in Royal Duty (Photo courtesy of Tangkijjarak Phakphum).
2601 (Photo courtesy of Tangkijjarak Phakphum).
(Photo courtesy of Tangkijjarak Phakphum).
| Specifications | 412EP | |
|
Rotor diameter |
Rotordurchmesser |
14.00 m |
|
Length |
Länge |
17.10 m |
|
Height |
Höhe |
4.60 m |
|
Engine |
Motor |
1 × Pratt & Whitney Canada PT6T-3D or PT6T-3DF Twin-Pac turboshafts, 1,250 shp |
|
Maximum speed |
Höchstgeschwindigkeit |
259 km/h |
|
Empty weight |
Leergewicht |
3,079 kg |
|
Loaded weight |
Startgewicht |
5,397 kg |
|
Climb Rate |
Steigrate |
6.86 m/s |
|
Service ceiling |
Gipfelhöhe |
6,096 m |
|
Range |
Reichweite |
980km |
|
Armament |
Bewaffnung |
none |
|
Capacity |
Zuladung |
1 Pilot, 13 passengers |
| Bell 412 | ||||||
| Type |
US Serial |
Reg. |
s/n |
Delivered |
Withdrawn |
Remarks |
| 412EP | - | 2601 | 36048 | Dec.1999 | present | - |
| 412EP | - | 2602 | 36049 | Dec.1999 | present | - |
| 412EP | - | 2603 | 36146 | 29. Dec. 1999 | ? | w/o |
| 412EP | - | 2604 | 36147 | 29. Dec. 1999 | present | - |
| 412EP | - | 2605 | 36148 | 10. Jan. 2000 | present | -former Princess’s Flight |
| 412EP | - | 2606 | 36149 | 29. Dec. 1999 | present | - |
| 412EP | - | 2607 | 36170 | 19. Dec. 1999 | present | - |
| 412EP | - | 2608 | 36171 | 19. Dec. 1999 | present | - |
| 412EP | - | 2609 | 36179 | 23. Dec. 1999 | present | - |
| 412EPi | - | 2610 | 37007 | 25. Jul.2017 | present | - |
| 412EPi | - | 2611 | 37008 | 25. Jul.2017 | present | - |
| 412EPi | - | 2612 | 37038 | 22. Oct. 2019 | present | - |
| 412EPi | - | 2613 | 37041 | 18. Oct. 2019 | present | - |
| 412EPi | - | 2614 | 37046 | 16. Sep. 2020 | present | - |
| 412EPi | - | 2615 | 37047 | 14. Sep. 2020 | present | - |
| 412EPi | - | 2616 | 37048 | 14. Sep. 2020 | present | - |
| 412EPi | - | 2617 | 37049 | 14. Sep. 2020 | present | - |