TM 55-1510-221-10
CHAPTER 1
INTRODUCTION
1-1. GENERAL.
1-5. APPENDIX B,
ABBREVIATIONS
AND
TERMS.
These instructions are for use by the operator(s).
They apply to the RC-12H aircraft.
Appendix B is a listing of abbreviations and
terms used throughout the manual.
1-2. WARNINGS, CAUTIONS, AND NOTES.
Warnings, cautions, and notes are used to
emphasize important and critical instructions and
are used for the following conditions:
1-6. INDEX.
The index lists, in alphabetical order, every
titled paragraph, figure, and table contained in this
manual. Chapter 7, Performance Data, has an addi-
tional index within the chapter.
An operating procedure, practice, etc.,
which if not correctly followed, could
result in personal injury or loss of life.
1-7. ARMY AVIATION SAFETY PROGRAM.
Reports necessary to comply with the safety pro-
gram are prescribed in AR 385-40.
1-8. DESTRUCTION OF ARMY MATERIEL TO
PREVENT ENEMY USE.
An operating procedure, practice, etc.,
which, if not strictly observed, could
result in damage to or destruction of
equipment.
For information concerning destruction of Army
materiel to prevent enemy use, refer to TM 750-244-
1-5.
NOTE
1-9. FORMS AND RECORDS.
An operating procedure, condition, etc.,
which is essential to highlight.
Army aviators flight record and aircraft mainte-
nance records which are to be used by crew mem-
bers are prescribed in DA PAM 738-751 and TM
55-1600-342-23.
1-3. DESCRIPTION.
This manual contains the best operating instruc-
tions and procedures for the RC-12H aircraft under
most circumstances. The observance of limitations,
performance, and weight/balance data provided is
mandatory. The observance of procedures is manda-
tory except when modification is required because
of multiple emergencies, adverse weather, terrain,
etc. Your flying experience is recognized, and there-
fore, basic flight principles are not included. THIS
MANUAL SHALL BE CARRIED IN THE AIR-
CRAFT AT ALL TIMES.
1-10. EXPLANATION OF CHANGE SYMBOLS.
1-4. APPENDIX A, REFERENCES.
Appendix A is a listing of official publications
cited within the manual applicable to and available
for flight crews.
Changes, except as noted below, to the text and
tables, including new material on added pages, are
indicated by a vertical line in the outer margin
extending close to the entire area of the material
affected; exception: pages with emergency markings,
which consist of black diagonal lines around three
edges, may have the vertical line or change symbol
placed along the inner margins. Symbols show cur-
rent changes only. A miniature pointing hand sym-
bol is used to denote a change to an illustration.
However, a vertical line in the outer margin, rather
than miniature pointing hands, is utilized when
there have been extensive changes made to an illus-
tration. Change symbols are not utilized to indicate
changes in the following:
1-1
