Sky hawk - 172SP
Propeller Ground Clearance
11 ft and 1/4 inch
Horizontal Stabilizer Width
11 ft and 4 inches
Fuel Quantity (Minimum)
1.5 gal unusable each tank
Vfe (Maximum Flap Extended Speed)
10 flaps - kcas: 107, kias: 110 10 to 30 flaps - kcas: 85, kias: 85
Wing Flap System Circuit
10- ampere circuit breaker
Fuel Grade
100 LL Aviation Grade (Blue) 100 Aviation Grade (Green)
Normal Category: Maneuvers (Chandelles and Lazy Eights)
105 knots
Utility Category: Maneuvers (Chandelles and Lazy Eights)
105 knots
Normal Ground Attitude - Nose Strut
2 inches of strut and wings level
Tachometer: Sea Level
2100 - 2500 RPM
Tachometer: 5000 ft
2100 - 2600 RPM
Tachometer: 10,000 ft
2100 - 2700 RPM
Static RPM at full throttle is...
2300-2400 RPM
Max. Recommended Turbulent Air Penetration Speed (2550 lbs, 2200 lbs, 1900 lbs)
2550 - 105 KIAS 2200 - 98 KIAS 1900 - 90 KIAS
Max. Weight - Take off and Landing
2550 lbs
Va (maneuvering speed)
2550 lbs - kcas: 102, kias: 105 2200 lbs - kcas: 95, kias: 98 1900 lbs - kcas: 88, kias: 90
Max. Weight - Ramp
2558 lbs
Pivot Point to outboard wing tip
27 ft - 5 and 1/2 inches
Prop spinner to vertical stabilizer length
27 ft and 2 inches
Tachometer Red Line (Maximum)
2700 RPM
Electrical System
28 volt system, 24 volt battery, 60 amp alternator
Weight in Baggage Area 2 (Station 108-142)
50 lbs
Stall Speed - Flaps Up, Power Off
53 kts
Max useful load (Utility Category)
545 lbs
Short field takeoff, flaps 10, speed at 50ft
56 KIAS
Fuel Capacity
56 gal (28 gal each tank), 53 gal usable (26.5 each tank)
Landing - Ground Roll
575 ft
Balked Landing: Max. power, Flaps 20
60 KIAS
Normal Approach, Flaps 30
60-70 KIAS
Short-Field Approach, Flaps 30
61 KIAS
Best angle of climb (sea level)
62 KIAS
Wheel Base Length
65 inches
Normal Approach, Flaps Up
65-75 KIAS
Best angle of climb (10,000 ft)
67 KIAS
climb flaps up - normal (10,000 ft)
70-80 KIAS
Best Rate of Climb (10,000 ft)
72 KIAS
Rate of Climb at Sea Level
730 FPM
Best Rate of Climb (Sea level)
74 KIAS
Normal climb out
75-85 KIAS
climb flaps up - normal (sea level)
75-85 KIAS
Vertical stabilizer to wheel base length
8 ft and 11 inches
Oil Capacity
8 quarts
Max. Useful Load (Normal Category)
895 lbs
Take Off - Ground roll
960 ft
Flap Limitations - Approved takeoff range
0 to 10 flaps
Flap Limitations - Approved Landing range
0 to 30 flaps
Baggage Allowance
120 lbs
Weight in Baggage Area 1 (Station 82-108)
120 lbs
Speed, Cruise, 75% Power at 8500 FT
124 kts
Speed - Max at Sea Level
126 kts
Yellow arc on airspeed indicator
129 - 163 kias
Landing - Total Distance Over 50 ft Obstacle
1335 ft
Service ceiling
14,000 feet
Power Loading - lbs/hp
14.2 - lbs/hp
Wing Loading - lbs/sq.ft
14.7 lbs/sq.ft
Max Demonstrated Crosswind Velocity (Takeoff or Landing)
15 knots
Red line on airspeed indicator
163 kias
Take off - Total Distance Over 50 ft Obstacle
1630 ft
Standard Empty Weight
1663 lbs
Wing area
174 sq ft
Horse Power Rating and Engine Speed
180 BHP at 2700 RPM
Propeller Model Number
1A170E/JHA7660
Number of Blades
2
Center of Gravity (Forward) - Utility Category
35.0 inches aft of datum at 1950 lbs 37.5 inches aft of datum at 2200 lbs
Center of Gravity (Forward) - Normal Category
35.0 inches aft of datum at 1950 lbs 41.0 inches aft of datum at 2550 lbs
Wing Span
36 ft and 1 inch
Vacuum Gage
4.5-5.5 inHg
White arc on airspeed indicator
40 - 85 kias
Center of Gravity (Aft) - Utility Category
40.5 inches aft of datum at all weights
Center of Gravity (Aft) - Normal Category
47.3 inches aft of datum at all weights
Green Arc on airspeed indicator
48 - 129 kias
Stall Speed - Flaps Down, Power Off
48 kts
Ground Control
Arc of approximately: 10 degrees each side of center. Degree of turn may be increased up to 30 degrees each side of center.
Normal Category - Flight Load Factors (Flaps Up and Down)
Flaps Up: +3.8g, -1.52g Flaps Down: +3.0g
Utility Category - Flight Load Factors (Flaps Up and Down)
Flaps Up: +4.4g, -1.76g Flaps Down: +3.0g
Engine Model Number
IO-360-L2A
Fuel (Additives)
Isoprophyl alcohol or diethylene glycol monomethyl ether may be added - must not exceed 1% alcohol or 0.15% of total volume.
Vno (Max. structural cruising speed)
Kcas: 126, Kias: 129
Vne (Never-exceed speed)
Kcas: 160, Kias: 163
Maximum Window Open Speed
Kcas: 160, kias: 163
Reference Datum:
Lower portion of front face of fire wall
Oil Specifications
MIL-L-6082/SAE 1966 (Aviation Grade Straight Mineral Oil) - 25 hours MIL-L-22851/SAE 1899 (Aviation Grade Ashless Dispersant Oil) - 50 hours
Propeller Diameter
Max: 76 inches, Min: 75 inches
Propeller Manufacturer
McCauley Propeller Systems
Oil Pressure
Min: 20 PSI Normal ( Green Arc ) : 50 to 90 PSI Max: 115 PSI
Takeoff and Landing Weight (Normal and Utility Category)
Normal - 2550 lbs Utility - 2200 lbs
Ramp Weight (Normal and Utility Category)
Normal - 2558 lbs Utility - 2208 lbs
Fuel Flow
Normal Op: 0-12 GPH
Oil Temp
Normal: 100-245 F Max: 245 F
Engine Type
Normally Aspirated, Direct Drive, Air Cooled, Horizontally Opposed, Fuel Injected, 4 cylinder engine with 360 cu. in. displacement
Magneto Check
RPM drop should not exceed 150 RPM Max differential 50 RPM
Cruise - 75% power at 8500 ft, 53 gal usable fuel (Range and Time)
Range - 518 nm Time - 4.26 hrs
Cruise - range at 10,000 ft, 45% power (Range and Time)
Range - 638 nm Time - 6.72 hrs
Utility Category: Maneuvers (Steep Turns, Spins and Stalls except whip stall)
Steep Turns - 95 knots Spins - Slow deceleration Stalls (Except whip stall) - Slow Deceleration
Normal Category: Maneuvers (Steep Turns and Stalls except whip stall)
Steep Turns - 95 knots Stalls (Except whip stall) - Slow Deceleration
Engine Manufacturer
Textron Lycoming
