39:
52:
380:
61:
356:. It is usual for gliders to be equipped with more than one type of variometer. The simpler type does not need an external source of power and can therefore be relied upon to function regardless of whether a battery or power source has been fitted. The electronic type with audio needs a power source to be operative during the flight. The instrument is of little interest during launching and landing, with the exception of
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allows pilots to maximize altitude gain per time. This occurs at the speed where the difference between engine power and the power required to overcome the aircraft's drag is greatest (maximum excess power).
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Rate of climb at maximum power for a small aircraft is typically specified in its normal operating procedures but for large jet airliners it is usually mentioned in emergency operating procedures.
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309:– also known as a rate of climb and descent indicator (RCDI), rate-of-climb indicator, vertical speed indicator (VSI), or vertical velocity indicator (VVI) – is one of the
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is the indicated airspeed for best rate of climb, a rate which allows the aircraft to climb to a specified altitude in the minimum amount of
348:, the pilot makes frequent use of the VSI to ascertain that level flight is being maintained, especially during turning maneuvers. In
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allows pilots to maximize altitude gain per horizontal distance. This occurs at the speed for which the difference between thrust and
337:(1 kn ≈ 0.514 m/s), depending on country and type of aircraft. It is typically connected to the aircraft's external
352:, the instrument is used almost continuously during normal flight, often with an audible output, to inform the pilot of
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232:). In a jet airplane, this is approximately minimum drag speed, occurring at the bottom of the drag vs. speed curve.
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regardless of the horizontal distance required. Except at the aircraft's ceiling, where they are equal,
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member countries, even in otherwise metric countries, this is usually expressed in feet per
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189:, typically used to avoid a collision with an object a short distance away. By contrast,
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185:. This is the speed at which an aircraft gains the most altitude in a given horizontal
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146:. A negative rate of climb corresponds to a positive rate of descent: RoD = −RoC.
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relating to optimum rates of ascent, the two most important of these are
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providing a rate of climb of 721 ft/min (3.66 m/s).
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decreases with altitude until they converge at the airplane's
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119:(ft/min); elsewhere, it is commonly expressed in metres per
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for civil airplanes, to give optimal rate of climb (right)
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http://people.clarkson.edu/~pmarzocc/AE429/AE-429-10.pdf
127:(VSI) or instantaneous vertical speed indicator (IVSI).
375:, showing vertical speed in feet per minute (ft/min).
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Best Rate of Climb for a jet and a propeller aircraft
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is a four-seat aircraft. At maximum weight it has a
123:(m/s). The RoC in an aircraft is indicated with a
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134:of decrease in altitude is referred to as the
42:Best Rate of Climb as a function of altitude
181:is the indicated forward airspeed for best
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371:. This is the most common type used in
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27:Aircraft vertical velocity during flight
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333:(1 ft/min = 0.00508 m/s) or
111:change with respect to time. In most
367:The vertical speed indicator from a
498:"Cessna 172 at a Glance Flashcards"
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25:
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528:, Skyhorse Publishing Inc., 2007
293:This section is an excerpt from
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522:Federal Aviation Administration
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383:Diaphragm Variometer operation
277:of 75 kn (139 km/h)
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252:increases with altitude and
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325:. It can be calibrated in
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228:is the greatest (maximum
502:www.flashcardmachine.com
323:rate of descent or climb
125:vertical speed indicator
85:, climbing with typical
150:Speed and rate of climb
73:climbing and releasing
526:Glider Flying Handbook
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154:There are a number of
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558:Aircraft aerodynamics
553:Aerospace engineering
406:Descent (aeronautics)
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354:rising or sinking air
207:is always lower than
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156:designated airspeeds
401:Climb (aeronautics)
317:used to inform the
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311:flight instruments
279:indicated airspeed
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536:pages 4-7 and 4-8
327:metres per second
16:(Redirected from
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467:on 19 March 2012
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437:. 4 October 2011
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261:absolute ceiling
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77:(left) and a
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505:. Retrieved
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469:. Retrieved
465:the original
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439:. Retrieved
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369:Robinson R22
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235:Climbing at
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431:"Vx vs. Vy"
97:aeronautics
547:Categories
457:"FAR §1.2"
417:References
307:variometer
295:Variometer
288:Variometer
268:Cessna 172
79:Boeing 737
71:F-15 Eagle
18:Climb rate
144:sink rate
83:Enter Air
507:16 March
471:16 March
441:16 March
411:V speeds
390:See also
373:aircraft
341:source.
315:aircraft
303:aviation
187:distance
109:altitude
358:aerotow
350:gliding
321:of the
532:
313:in an
121:second
117:minute
99:, the
75:flares
335:knots
319:pilot
142:) or
81:from
530:ISBN
509:2018
473:2018
443:2018
305:, a
266:The
226:drag
198:time
165:and
130:The
113:ICAO
344:In
301:In
140:RoD
105:RoC
95:In
69:An
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274:Y
272:V
256:Y
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249:x
247:V
239:Y
237:V
221:X
219:V
211:Y
209:V
204:X
202:V
193:Y
191:V
178:X
176:V
169:Y
167:V
162:X
160:V
138:(
103:(
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
