C400 Performance

General Information

Airframe

Length	43' 5"	13.23 m
Height	17' 0"	5.18 m
Wing span	47' 8"	14.53 m

Usable Fuel- Jet A Type

580 Gal

2,195 L

Tanks	Capacity- (Gallons)
Left Main	250
Right Main	250
Left Aux.	40
Right Aux.	40

Gross weight	12,050 Lbs	5,470 Kg
Empty weight	5,986 Lbs	2,717 Kg

Retractable landing gear

First certified

07/13/84

Cabin - Pressurized

Length	17' 8"	5.38 m
Height	4' 8"	1.42 m
Width	4' 4"	1.32 m

Passengers (max, including crew)

Propulsion

Constant speed propellers - Full feathering and Reversible

Number of engines	2
Type of engines	Turbine
Manufacturer	Garrett
Left(cw rotation)	TPE33l-l4A
Right(ccw rotation)	TPE33l-l4B
Rated Horsepower	1,000
Propeller Speed	1540 RPM
Engine Type	Single fixed-shaft turboprop
Compressor
Stages	2
Type	Centrifugal
Turbine
Stages	3
Type	Axial flow
Combustion Chamber	Annular
TBO in the US	3,000 hrs.
Propeller Manufacturer	Dowty Rotol
Blade Model
Left	R339/4-123-F/8
Right	R341/4-123-F/9 4
Number of blades	4
Propeller Type	Hydraulically operated
Propeller Diameter	106"

Performance

Cruise speed

334 Kts

384 Mph

618 Km/h

Top Speed:

In excess of 400 MPH at some altitudes, a more typical high altitude cruise being 327 KIAS at 39,000 feet for a total of 595 pounds fuel / hour

Service ceiling	41,000 Ft	12,496 m
Engine out service ceiling	28,700 Ft	8,747 m

Rate of climb	3,242 Ft/min	16.4 m/s
Engine out rate of climb	997 Ft/min	5.0 m/s

Takeoff over 50 Ft (15m)

1,930 Ft

588 m

Landing over 50 Ft (15m)

2,280 Ft

694 m

Range

1,879 nm

2,162 sm

3,479 Km

The following chart provides you with the airspeed limitations for the Cheyenne 400 LS. For information on the terminology, please refer to the General Airspeed Terminology section of the POH.

It is the responsibility of the airplane owner and pilot to assure that the aircraft is properly loaded. Maximum and minimum allowable weights are listed below.

Speed	KCAS	KIAS	Remarks
Vmo	246	244	Do not exceed up to 27000’
Va – 12000 lb	189	187
Va – 7600 lbs	157	155
Vfe – 10 flap	196	194
Vfe – 30 flap	169	167
Vle	172	170	Do not exceed with gear extended
Vlo – extension	172	170
Vlo – retraction	172	170
Vmca	101	99	Lowest airspeed the aircraft is controllable with 1 engine
Vso	86	84	Stall speed gear down
Vsi – flaps up	95	93	Stall speed with gear up
Vsi – flaps 10	92	90	“ “

Condition	Speed KIAS
Design Maneuvering Speed
12,050 lbs.	187
7,600 lbs.	155
Maximum Flap Extended Speed	117
100% flaps (Approach)	194
30° flaps (Landing)	167
Maximum Gear Extended Speed	170
Maximum Gear Operating Speed
Retraction	170
Extension	170
Best Rate of Climb Speed
Below 25,000 ft, no Flaps	138
Above 25,000 ft, decrease by I knot per 1000 ft
Final Approach Speed (11,100 Ib)	105
Intentional One Engine Inoperative Speed	125
Recommended Holding Speed
Sea level to 15,000 ft	150
Above 25,000 decrease by 1 knot per 1,000 ft
Balked Landing Climb (11,100 lb)	110
Rough Air Penetration Speed (below 25,000 ft)	195

Weight (Lbs.)	Speed KIAS
12,050	136
11,000	130
10,000	124
9,000	117
8,000	111
Airspeed Indicator Markings Markings found on the Airspeed Indicator
Marking	KIAS Value/Range	Significance
Green Arc	93 to 244	Normal Operating Range
White Arc	84 to 167	Flaps Extended 30 ^o
Radial Red Line	99	Air Minimum Control Speed
Radial Blue Line	125	Best Rate of Climb, One Engine

Type	Weight (Lbs.)
Maximum Ramp Weight	12,135
Maximum Takeoff Weight	12,050
Maximum Landing Weight	11,100
Maximum Zero Fuel Weight	10,000
Maximum Weights in Baggage Compartments
Forward	300
Aft	400