ENSTROM 480B OPERATOR'S MANUAL 1-1
FAA Approved: May 21/19 Rev. 24
Report No. 28-AC-023 May 2/19
CHAPTER 1. OPERATING LIMITATIONS
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
Table of Contents ....................... 1-1
Section I Introduction ............................... 1-3
Paragraph 1-1 Purpose ...................................... 1-3
1-2 General ...................................... 1-3
1-3 Operational Limits ...................... 1-3
Section II General ...................................... 1-3
Paragraph 1-4 Kinds of Operation ..................... 1-3
1-5 Minimum Crew Requirements .... 1-4
Section III Helicopter & System Limits ........ 1-5
Paragraph 1-6 Instrument Markings ................. 1-5
1-7 Rotor Limitations ....................... 1-5
1-8 Transmission Limits ................... 1-5
1-9 Engine Limits ............................. 1-6
1-10 Starter Limits ............................. 1-9
Section IV Operation Limits ...................... 1-17
Paragraph 1-11 Airspeed Limits ........................ 1-17
1-12 Altitude Limits ......................... 1-18
1-13 Load Limits .............................. 1-23
1-14 Maneuvers ............................... 1-23
1-15 Environmental ......................... 1-24
1-16 Restrictions in Use of
Anti-torque Pedals .................... 1-25
1-17 Placards ................................... 1-25
LIST OF FIGURES
FIGURE NO. DESCRIPTION PAGE
1-1 Instrument Markings ........................... 1-11
1-2 Maximum Allowable Torque and N
2
.. 1-16.2
1-3 Airspeed Operating Limits ................... 1-19
1-4 V
NE
Envelopes ...................................... 1-22
1-5 V
NE
Placards ........................................ 1-27