2003 US Army BRADLEY GUNNERY 503p.pdf - Survival Books

FM 3-22.1• 1 each--paint thinner or brush cleaner.• 1 each--package of medium-grit sandpaper.c. Equipment. You will also need the following equipment:• 1 each--straightedge, 8 feet long.• 2 each--C-clamps.• 1 each--framing square.• 1 each--tape measure at least 8 feet longer.• Several--paint pads, 6 inch or 8 inch; or paint brushes; or both.• 1 each--paint brush, 3/8 inch.• 1 each--router.• 1 each--bit, router, straight, 1/2 inch.• 1 each--power drill.• 1 each--bit, drill, 1/4 inch.• 1 each--jigsaw.• 1 each--pencil.d. Procedures. If you can measure, paint, and use a jigsaw, router, and drill, thenyou can construct the panel yourself. Use a router to cut grooves for the crosses. Thissimplifies painting them, because all you have to do is to paint in the grooves:(1) Sand the front, back, and edge of the plywood to remove dirt and grease.(2) Mark the words "LOW, LEFT" on the lower left-hand corner of the panel.(3) To mark the TOW cross, use a pencil and the 8-foot long straightedge(Figure B-57, page B-44).(a) Mark 19 inches to the right "A" of the lower left edge of the panel. (Table B-2shows that the TOW cross is 19 inches from the left edge of the panel.)(b) Mark 19 inches to the right "B" of the upper left edge of the panel.(c) Draw a line connecting the two marks made at "A" and "B."(d) Mark (C) 35 inches up from the bottom edge of panel (along 8-foot side).(e) Mark (D) 35 inches up from the lower right edge of the panel at "D."(f) Draw a line connecting the two marks made at "C" and "D."(g) Mark "E," "F," "G," and "H" at a distance of 8 inches from the center of the crossformed by the lines drawn. Table B-4 shows the length of each arm.(4) Mark the ISU, AUX, 25-MM, and COAX crosses as follows:(a) Using the data from the RIGHT direction row of Table B-2, mark the verticallines of the crosses as previously described for the TOW cross.(b) Using the data from the UP direction row of Table B-2, mark the horizontal linesof the crosses as previously described for the TOW cross.(c) Mark the length of each arm of each cross using the data from Table B-4.(5) Rout each cross as follows:(a) Set the router's depth shallow, at either 1/32 inch or 3/64 inch. This keeps therouter from cutting through the first layer of the plywood.(b) Clamp the straightedge to the wood to make a jig (guide) for the router.(c) Use the router to cut grooves between the tick marks for the lines of the cross.(6) Apply a coat of primer to the front, back, and edge of the panel. Avoid letting thepaint build up in the grooves. Let the primer dry.(7) Apply a coat of white paint to the entire panel. Let the paint dry.B-43