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6/24/75 <br />AC 150/5300-4B <br />Appendix 2 <br />4. Preliminary design data: <br />(a) Airport category <br />(b) Recommended runway length feet <br />(c) Percent wind coverage <br />(d) Crosswind runway length <br />(e) Type & Direction of instrument procedure <br />5. Site clearing: <br />(a) On -site acreage <br />(b) Approach area acreage <br />(c) Other obstructions (trees, power lines, roads, etc.) <br />6. Soils survey: <br />(a) <br />Number of borings <br />(b) Estimated depth of water table <br />(c) Federal Aviation Administration soil classificatior <br />(d) Noteworthy features (stony, swampy, type cover, etc.) <br />7. Drainage: <br />(a) Natural drainage courses <br />(b) Total tributary area acreage <br />(c) Method of estimating runoff <br />(d) Major drainage structures anticipata.7 <br />Page 2 <br />• <br />