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JamesPlatte
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Rocky Mountain AreaElevation Ranges - Helicopter Operability
T:\FS\NFS\R02\Program\5100Fire\GIS\HelicopterOps\r2map_helicopter_operabilitye.bowne 4/7/2014
Altitude Temp DA
6K 35 C / 95 F 95006K 40C /104F 10200
8K 30 C / 86 F 115008K 35 C / 95 F 12000
10K 25 C / 77 F 1340010K 30 C / 86 F 13900
Density Altitude
Albers Equal Area Projection
25 0 25 50 75 100 125 150 175
Miles
0 50 100 150 200 250 300Kilometers
6000 ft to 8000 ft 8000 ft to 10000 ft 10000 ft and aboveCH 54S64
H60 Black HawkHP 212 w/ BLR
AS 350 B2 AS 350 B2 *Bell L4 Bell L4 *Bell 407 Bell 407 *
AS 350 B3 AS 350 B3 AS 350 B3Bell 205 ++ Bell 205 ++ Bell 205 ++
UH 1H w/ BLR Charts (FastFin) UH 1H w/ BLR Charts (FastFin) UH 1H w/ BLR Charts (FastFin)UH 1H w/ 703 Engine UH 1H w/ 703 Engine UH 1H w/ 703 Engine
S70 (Blackhawk) S70 (Blackhawk) S70 (Blackhawk)Kmax Kmax Kmax **
Vertol B 234 Vertol B 234 Vertol B 2346000 ft to 8000 ft 8000 ft to 10000 ft 10000 ft and above
Helicopter Operability
* These begin to drop off between 9,000 and 9,500 ft** For very high elevations - Kmax is the best choice
ROCKY MOUNTAIN AREALegend
Elevation Range
6,000 to 8,000 ft8,000 to 10,000 ft10,000 ft and above
Under 6,000 ft
Dispatch CentersLocal Dispatch Center Boundaries
Forest/Grassland BoundariesInterstateUS HighwayState RouteContinental DivideStreamsLakes/ReservoirsTowns and Places
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