T.O. 1-1A-9
(T.M. 43-0106)
SECTION I
INTRODUCTION
1-1. PURPOSE.
1-2. This is one of a series of technical or engineering technical manuals prepared to assist personnel engaged in the
maintenance and repair of Aerospace Weapon Systems and Supporting Equipment (AGE). Army Personnel: Wherever
the text of this manual refers to other technical orders (T.O.'s) for supporting information, refer to comparable Army
documents.
1-3. This technical manual provides precise data on specific metals to assist in selection, usage and processing for
fabrication and repair. It includes such data as specification cross reference; approved designation system for alloys and
tempers; temperatures and other controls for heat treatments; mechanical and physical properties processing instructions
for basic corrosion prevention; general welding and forming characteristics; and other information required for general
aerospace weapon system repair. Procedures for general foundry practice, sand control, gating and risering of both
ferrous and non-ferrous castings may be obtained from available commercial handbooks and/or publications. Due to the
many types, grades, diversified uses and new developments of metal products, it may not include all data required in
some instances and further study and citation of this data will be required. If a requirement exists for information not
included, a request for assistance should be made to WR-ALC, MMIRDA.
1-4. The information/instruction contained herein are for general use. If a conflict exists between this technical manual
and the specific technical manual(s) or other approved data for a particular weapon, end item, equipment, etc., the data
applicable to the specific item(s) will govern in all cases.
1-5. The use of "shall", "will", "should" and "may" in this technical manual is as follows:
a.
Whenever the word "shall" appears, it shall be interpreted to mean that the requirements are binding.
b.
The words "will", "should" and "may", shall be interpreted as nonmandatory provisions.
c.
The word "will" is used to express declaration of purpose.
d.
The word "should" is used to express nonmandatory desired or preferred method of accomplishment.
e.
The word "may" is used to express an acceptable or suggested means of accomplishment.
1-6. Army Personnel: Reporting of Errors. You can help improve this manual by calling attention to errors and by
recommending improvements and stating your reasons for the recommendations. Your letter or DA Form 2028,
Recommended Changes to Publications and Blank Forms, should be mailed directly to Commander, US Army Aviation
Systems Command, ATTN: DRSAV-FR, PO Box 209, St. Louis, Mo. 63166. A reply will be furnished directly to you.
Change 10 1-1
