PA-38 Piper Tomahawk

Wing Area

124.7 square feet

Minimum Turn Radius (pivot to wingtip)

26 feet

Lateral Length

34 feet

Longitudinal Length

23 feet 2 inches

Distance Between Main Gear

10 feet

Engine

Lycoming O-235-L2A (Bendix mags.) or O-235-L2C (Slick mags.)

Rated Horsepower

112 HP

Rated RPM

2600 RPM

Engine Description

Four cylinder, direct drive, horizontally opposed, air cooled

Propeller

Sensenich 72CK-0-56

Propeller Type

Fixed Pitch

Propeller Minimum and Maximum Diameter

70 inches and 72 inches

Total Fuel Capacity

32 gallons

Usable Fuel Capacity

30 gallons

Single Tank Total Fuel Capacity

16 gallons

Single Tank Usable Fuel Capacity

15 gallons

Minimum Fuel Octane

100/100LL (green/blue)

Standard Empty Weight

1128 pounds

Standard Empty Weight Definition

Weight of a standard airplane including unusable fuel, full operating fluids and oil.

Maximum Useful Load

542 pounds

Maximum Useful Load Definition

The difference between maximum takeoff weight and standard empty weight

Maximum Takeoff Weight

1670 pounds

Maximum Weight at Baggage Compartment 115" Aft of Datum

100 pounds

Maximum Baggage Compartment Loading

25 pounds/square foot

Wing Loading

13.39 pounds/square foot

Power Loading

14.9 pounds/square foot

Va KIAS at 1277 pounds

90 knots

Va KIAS at 1670 pounds

103 knots

Vne KIAS

138 knots

Vno KIAS

110 knots

Vfe KIAS

89 knots

Vs KIAS (Outboard and Inboard Stall Strips)

52 knots

Vso KIAS (Outboard and Inboard Stall Strips)

49 knots

Oil Temperature Green Range

75-245 degrees fahrenheit

Oil Pressure Green Range

60-90 PSI

Fuel Pressure Green Range

.5-8 PSI

Permissible Static RPM Full Open Throttle Run Up

2200-2350 RPM

Tachometer Green Range

500-2600 RPM

Forward CG Limit at 1670 Pounds

73.5 inches

Forward CG Limit at 1277 Pounds

72.4 inches

Aft CG Limit at 1670 Pounds

78.5 inches

Aft CG Limit at 1277 Pounds

78.5 inches

Is Baggage Allowed for Spins?

No

Rules For Normal Category

All acrobatic maneuvers prohibited

Rules For Utility Category

Approved utility maneuvers only

Approved Utility Category Maneuvers and Entry Speeds

Flaps up spins from a stall, and steep turns, chandelles, lazy eights at 100 knot entry

Flaps Up Normal Positive Load Limit

3.8 G

Flaps Up Utility Positive Load Limit

4.4 G

Flaps Down Normal Positive Load Limit

2.0 G

Flaps Down Utility Positive Load Limit

2.0 G

Negative Load Limit

No inverted maneuvers approved

Noise Level

67.8d B(A)

Max Gross Glide Speed - Vg KIAS

70 knots

Vx KIAS

61 knots

Vy KIAS

70 knots

Final Approach Speed KIAS (Outboard and Inboard Stall Strips)

67 knots

Maximum Demonstrated Crosswind

17 knots

Proper Nose Gear Strut Static Extension

3 inches

Engine Warm-Up

800-1200 RPM

Run Up Mag. Check RPM Drop Limits

Maximum drop of 175 RPM, maximum difference of 50 RPM

Run Up Vacuum Limits

5" Hg plus/minus .1

Vr KIAS

53 knots

Flap Setting Normal

0 degrees

Flap Setting Short Field

21 degrees

Flap Setting Soft Field

21 degrees

Maximum Normal Cruising Power

75%

6.00x6 Tire and Wheel Assembly Performance Impact

15 feet/minute less climb rate and 2-3 knot slower cruise

Fuel Arm

75.4 inches

Pilot and Passenger Arm

85.5 inches

Airfoil

NASA GA (W)-1

Alternator

60 amp, 14 volt

Propeller Pitch

56 inches at 75% diameter

Nose Gear Steering Range

60 Degrees

Aircraft Type

PA-38-112

Flap Settings

0, 21, or 34 degrees

Battery

12 volt, 25-ampere

Vacuum Pump Lower Pressure

12,000 MSL and above

How Many Fuel Sumps?

3

5.00x5 Tire Pressure

26 PSI

6.00x6 Tire Pressure

30 PSI

Exaggerated Trim For Takeoff

Nose Up

Practical Rotation/Ground Effect Speed

60 knots

Circuit Breaker Reset Cooling Period

2-5 mins

Horizontal Stabilizer Lateral Length

10 feet 6 inches

Propeller Clearance From Ground

7 inches

Tallest Point of Aircraft

Tail, 9 feet 1 inch

Nosewheel to Mainwheels

4 feet 9 inches

Are Flaps Extended Spins Allowed?

No

Engine Out

ALARMS! Airspeed, Landing spot, Air restart, Radios, Mayday, Secure

Smoke in Cockpit

Open vents

Fuel Problems

Pump on, switch tanks

Spin Recovery

PARE! Power out, Ailerons neutral, Rudder opposite, Elevator forward briskly

Door Opens in Flight

90 kts, close vents, open window, unlock upper latch, unlatch door, pull on door armrest, latch door, lock upper latch, fix window and vents

Overvoltage

16.5 V and above

Use of Carbureter Heat

Full on or full off

Cruise Chart

Speed Power - Best Power Mixture Below 75%

Overvoltage Fix

Check/reset 5A field alternator CB

Static Ports

2

Upper Latch Orientation

Forward=open and aft=close

Are shoulder harnesses mandatory?

Yes