will be -7°; therefore, the true heading will be 340°-7°-333° true. h. Exercises. Find heading and air speed, given scheduled ground speed, course, wind speed, and wind direction: (1) GS=185, C=110°, WS=35, WD=172° (2) GS=232, C=351°, WS=47, WD=33° APPENDIX I MISCELLANEOUS UNITS AND CONVERSION FACTORS 1. Formulas. a. Area of circle, radius=r, is πr2 (=3.1416). b. Area of rectangle, width=w, and length=l, is wl. -7.4805 United States gallons (gal.) 1 kilometer per hour=0.62137 statute mile per hour (km./hr.) 1 knot =0.53959 knot =1 nautical mile per hour =1.853249 km./hr. =1.151553 mph. or miles/hr. 1 statute mile per hour=1.4666 feet per second NOTE.-Time given for Tokyo is standard time. Difference in standard time between New York and Tokyo is 14 hours. 5. Densities. Gasoline (aviation) weighs 45 lb./cu. ft. or 6 lb./gal. Oil (aviation) weighs 56 lb./cu. ft. or 7.5 lb./gal. Water weighs 62.4 lb./cu. ft. or 8.34 lb./gal. Air (dry) weighs .0765 lb./cu. ft. at 15° C. (59° F.) and standard atmospheric pressure. 26 4150 4166 4183 4200 4216 27 28 4472 29 4232 4249 4265 4281 4298 1.6 4456 1.6 35 5441 5453 5465 42 40 6021 6031 6042 6053 6064 6075 6085 6096 6107 6117 1.1 6415 6425 1.0 6513 6522 1.0 46 6628 6637 47 48 45 6532 6542 6551 6561 6571 6580 6590 6599 6609 6618 1.0 80 9031 9036 9042 9047 9053 9058 9063 9069 9074 9079 .5 81 9085 9090 9096 9101 9106 9112 9117 9122 9128 9133 .5 82 9138 9143 9149 9154 9159 9165 9170 9175 9180 9186 .5 83 9191 9196 9201 9206 9212 9217 9222 9227 9232 9238 .5 84 9243 9248 9253 9258 9263 9269 9274 9279 9284 9289 .5 90 91 9590 9595 9600 9605 92 93 94 9542 9547 9552 9557 9562 9566 9571 9576 9581 9586 .5 9609 9614 9619 9624 9628 9633 .5 9638 9643 9647 9652 9657 9661 9666 9671 9675 9680 .5 9685 9689 9694 9699 9703 9708 9713 9717 9722 9727 .5 9731 9736 9741 9745 9750 9754 9759 9763 9768 9773 .5 9912 9956 9961 9965 9969 9777 9782 9786 9791 9795 9800 9805 9809 9814 9818 .5 9983 9987 9991 9996 .4 |