Attachment 4 - U2 Intake Plugs Blueprint.pdf

This document is a technical engineering drawing set containing three pages of detailed schematics and specifications for what appears to be an assembly component, likely related to aerospace or defense equipment based on the drawing style and reference notations.

Page 1 presents an isometric technical drawing with multiple detail callouts and assembly references. Key components specified include: a doubler insert (item 9) made of chlorprene cloth Type 1 Class 3 in red/low equivalent; a cover cloth also chlorprene Type 1 Class 3; webbing per MIL-W-4088 Type VIII B in 2-inch width, color red, with 3.0-inch leg dimension; a dust plug assembly (item 3) requiring one unit; and foam per specification PA55-280 or equivalent (item 11). Dimensional callouts indicate measurements of 3.5, 2.0, 6.5, and 13.0 units at various reference points. Strap references and assembly notes are included throughout.

Page 2 shows additional views and assembly details for component RG1052, with a notation "REMOVE BEFORE FLIGHT" prominently displayed. This page reiterates several material specifications: doublers and covers in chlorprene cloth Type 1 Class 3 (color red), webbing references per MIL-W-4088, foam specifications, and dust plug assemblies. Page 3 contains a full-size view/4-pattern drawing showing symmetrical geometry about a center line with dimensional references including R1.8, R16.0, R99.5, and 13.9 measurements. General notes specify assembly per best commercial practice, with reference to release/revision documentation for authorizing signatures. The drawing includes standard third-angle projection notation and a parts list reference section in the lower right corner.