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The center of gravity (CG) of an aircraft is the point over which the aircraft would balance. [ 1] Its position is calculated after supporting the aircraft on at least two sets of weighing scales or load cells and noting the weight shown on each set of scales or load cells. The center of gravity affects the stability of the aircraft.
Because the Earth rotates (ω, 15° per hour, apparent drift), and because of small accumulated errors caused by imperfect balancing of the gyro, the heading indicator will drift over time (real drift), and must be reset using a magnetic compass periodically.
[1] The New Hampshire Fish and Game Department conducts an average of 200 rescues a year for hikers in need of assistance. [2] Mt. Washington itself has had more fatalities per vertical foot than any other mountain in the world, and has been listed among the ten deadliest mountains in the world. [3] [4]
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Aspect ratio (aeronautics) An ASH 31 glider with very high aspect ratio (AR=33.5) and lift-to-drag ratio (L/D=56) In aeronautics, the aspect ratio of a wing is the ratio of its span to its mean chord. It is equal to the square of the wingspan divided by the wing area. Thus, a long, narrow wing has a high aspect ratio, whereas a short, wide wing ...
Carrier Strike Group Seven crest. Carrier Strike Group Seven 2007–09 operations included two deployments to the U.S. Fifth Fleet, and its embarked Carrier Air Wing Fourteen flew 2750 air sorties in support of ground forces in Iraq and Afghanistan while CARSTRKGRU-7 surface warships supported theater security and maritime interdiction operation within that fleet's area of responsibility.
q.1 h, q.1° quaque 1 hora: every 1 hour (can replace 1 with other numbers) q4PM at 4:00 pm (can replace 4 with other numbers) mistaken to mean every 4 hours q.a.d. quaque alternis die: every other day q.a.m. quaque die ante meridiem: every morning (every day before noon) q.d./q.1.d. quaque die: every day
For small angles, M can also be considered to be fixed, while B moves as the ship heels. The metacentric height ( GM) is a measurement of the initial static stability of a floating body [ 1]. It is calculated as the distance between the centre of gravity of a ship and its metacentre. A larger metacentric height implies greater initial stability ...