June 99
DRAWINGS
1. DRAWING MATERIAL AND SIZE
a. Prepare VA drawings on mylar reproducibles [photographic
polyester base film, 76 m (0.003 inch) minimum thickness], moist
erasable image of high resolution.
b. Standard size sheets are 1069 mm (42 inches) long by 762 mm
(30 inches) wide.
2. DRAWING FORMAT
Provide Computer Aided Design and Drafting (CADD) for all projects.
Supply all CADD data in the latest version of Intergraph Corp.,
MicroStation CADD software, in accordance with the NCA CADD
Standards Manual and the Tri-Service AEC Computer Aided Design and
Drafting (CADD) Standards, Part 2, dated April 1995.
3. SIZE AND SCALE
Use minimum lettering height of 3 mm (1/8 inch) to permit
microfilming at 1:30 and future enlargement of the microfilm to full size.
Typewritten notes are preferable, although not required. Hold screening,
shading, crosshatching and other indications of materials or locations to a
minimum. Place symbols and lettering so that they are not confused with
dimension lines, arrowheads, or other indications.
4. TITLE BLOCK
a. Comply with format indicated on sample VA drawing provided in A/E
Package.
b. For Schematics and Design Development Drawings, stamp
tracings or sepias above the title block in large font stating as appropriate
either "Schematics ONLY" or "Design Development ONLY", and in small
font "NOT for Construction".
5. GENERAL INFORMATION
a. Organize and number drawings into technical classifications as
listed in Item 6, Identification of Drawings.
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