Contents
…C-172 Information; ... C-172 Model (Re-engined model N); ...1955 to 1986 C-172 Differences; ...Lycoming;
...Takeoff/Landing comparison; ...C-172 Differences and Checkout; ...Damaging Aircraft; …Exercise in C-172; ...C-172 Procedures; and Landings …Precision approach speed no flaps; …Level Cruise; …Climb at 90 knots; …Level Approach speed at 90 knots; ...Level Approach speed at 90 knots #2; ...Approach descent speed at 90 knots;
C-172 Information
This TCDS covers all 172s. For models 172 through early 172Ms the Vfe limitation is 87 knots. From later 172Ms through the 172R the Vfe limitation is 85 knots. This is the highest speed, in general, that the pilot should extend *full* flaps. The Cessna 172 Type Certificate Data Sheet (3A12) is located at
http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rghtml.nsf/htmlmedia/current_models_by_tc_holder.html
Not long ago I saw four people get into the C-172. I questioned the pilot regarding weight and he said that he was in limits. When the heavyweight of the group got into the back seat, I again approached the pilot and suggested that balance might be a problem. What can be done? First, I don't believe anyone deliberately, and knowingly damages an aircraft or exposes passengers to danger. A pilot may have erroneous perceptions as to what makes a good landing. Maybe, there is a problem with knowing aircraft attitudes. Is establishing a stabilized approach at a constant airspeed the problem? Very possibly, it is caused by a situation beyond the pilot's experience. Instructional flying is five times safer than other G.A. flying. Since so much instruction is done in the C-172 it is logical to expect that the C-172 has an excellent safety record when compared to complex-high-performance aircraft.
A single pilot in a C-172 with his seat well forward; the C-172 with a a full radio stack; and The aircraft is within C.G. limits presents a potential flying control problem. A final approach at 60 knots will give the elevators enough authority to round out. As the aircraft decelerates below 60 knots the elevator loses authority and may well be unable to raise the nose, even if full back and up. This is especially true if the power has been taken off.
Under these conditions, what should the pilot do? If you can't arrange to get one passenger in the back seat, you should plan to leave at least 1200 rpm. The power will help hold the nose up and give the elevator the authority required for a full stall landing. Very careful energy management will be required to avoid a balloon. It can be done to a full stall landing every time. You will not be able to see the runway. The nose wheel will remain well clear of the ground. Power can be applied for the takeoff and the flaps removed without the nose wheel ever touching the ground. Alternatively, the power can be taken off as the nose wheel touches.
Aircraft damage due to landings is mostly accumulative. Occasionally damage happens all at once but usually it is accumulative. The gearbox can take thousands of average landings without any damage. The spring gear can take a heck of a beating. The severe damage to Cessnas is to the gearbox underneath the seats. One falling out of the sky from 20' can break the box. Repair or replacement of a C-172 gearbox can cost $9,000. The nose gear is attached to the firewall. A very hard landing on the nose wheel can damage the firewall.
Flying an aircraft with a bent firewall is enough to trigger an FAA investigation. Try to inspect the firewall of a C-172 or C-182 without removing the cowling. Is the nose wheel fork bent? Inadequate preflight the FAA calls it. It took me 14 months to shake them loose.
The C-172 generic landing uses 70 knots for downwind and final adding two ten-degree notches of flaps while taking off two full turns of trim. On final you put in full flaps and no trim change. You are on a stabilized approach hands-off at 60 knots. For the go-around, on bringing up the flaps you will be trimmed for a 75-knot climb. The hard part of flying the C-172 is leveling off. The old joke about how long it take a student to level off a C-172 is answered with, "Thirty-five hours". It will take about one and one-third turns of trim and a close eye on the altitude while the plane accelerates. The trick is to reduce to 2450 as soon as you reach 100 knots. Otherwise, you will be jockeying airspeed and trim for quite a while. The cause of this problem is that the C-172 has less power for its weight than the C-150. The time to accelerate to 100 knots seems to take forever. Initially you will be holding backpressure and then forward pressure on the yoke while the airspeed gets sorted out. Due to deceleration the C-172 power should only be reduced to 1700. At approach speed the power will have dropped to 1500 rpm
C-172 Model M (Re-engined to model N)
The change of 1407U to a C-172N by the addition of the 160 H.P. engine will increase the fuel consumption rate to around 8+ gph. I would suggest each pilot run some fuel consumption tests to compute figures for their mode of operation. To do otherwise is unsafe.
Note: Use of a C-172 information manual other than for a C-172N will give erroneous information.
Power: New engine 1995 is 160 h.p. and has higher fuel consumption than previous 150 h.p. Fly conservative until consumption is known. Speed: Do not use manual figures. For cross-country the use of 105K will work about right.
C-172 Information 1407U C-172 Model N. The new engine makes it Model N since the flap deflection has been limited to 30 degrees.
Speed: Do not use manual figures for cross-country. The use of 105 kph will work about right. This may change with new 160 hp engine but not by much. Power mostly affects rate of climb. Cruise: Recommended lean mixture with fuel allowance for engine start, taxi, takeoff, climb and 45 minutes reserve at 45% power. 75% power at 8000' Range 450 nm no reserve. Cessna has a bulletin on the C-152 that indicates full rich operations will decrease range by over an hour and increase fuel consumption by 40%. Similar figures would probably apply to the C-172.
C-172M 1975-6
hp - 150
Gross - 2300
Empty - 1335
Useful - 965
Cruise - 122kts
Climb - 643
New - 27,600
Current 41,500
Value retention 141%
Time 3.9 (Recommend 3 hours maximum)
Sea Level rate of climb 770 fpm
Service Ceiling 14,200
Takeoff Performance
Ground roll 865'
Over 50' obstacle 1440
Landing Performance
Ground roll 520'
Over 50' obstacle 250
CAS Stall Speed
Clean power off 50 kts
Dirty power off 44 kts
Empty weight and useful load.......consult weight and balance papers
C-172 is vulnerable to dangerous weight and balance conditions.
Gross to/landing weight 2300 lb.
Baggage allowance 120 lb.
Wing Loading 14.4
Fuel Capacity 42 gallons
Useable 39 gallons
Fuel consumption...................160 h.p. engine in 1995 changes figures
Engine- Lycoming 160 hp. (14.4 lb. per hp)
At 2500 rpm at 2000' 76% power and leaned uses 8.5 gph.
At 2400 rpm at 8000' 60% power 6.7 gph
The N has 160 hp and 30 degrees of flaps. These make it possible to increase the useful and gross because of the go-around requirements. Slips with flaps are either prohibited or not recommended in the POHs. The slip problem arises from the possibility of extended flaps under certain conditions such as in slips or wind shear blocking or interfering with the airflow over the horizontal tail surfaces. I have had such an occurrence in a C-150. The tail surfaces stall and the nose pitches straight down before the stall warner has a chance to yelp. Cessna merely admits that there may be control oscillations.
36,000 C-172s have been manufactured since the first one in June of 1955. The C-172 has the best safety record of aircraft in its class. The 1956 model had a 145 hp Continental. The 1960 model had a swept tail. In 1963 a rear window appeared as well as single piece windshield and longer elevator. The 1956 to 60 C-172 had a low panel that allowed the pilot to 'look down' over the 145 H.P. engine. Over 30,000 C-172s have been built in 43 years. 1960-63 enter the swept tail and no-window fuselage. Enter the window in the back and then we have a series of changes in engine, landing gear, and cockpit but essential things remained the same. The 1964 model had electric flaps instead of the Johnson Bar. 1968 models switched to Lycoming 150 hp engines. In 1971 the spring steel gear was changed to tubular. In 1972 the dorsal fin was extended to correct pitch problems during slips. 1973 changed the wing leading edge to a droop as well as a shorter propeller. An engine change in 1972 was a disaster due to inadequate lubrication. 1978 saw the 24-volt electrical system and better seats. 1981 gave a 160-hp engine and gross weight of 2400lbs but reduced flap travel of 30 degrees. 1986 changed the angle of the horizontal stabilizer to improve pitch authority. Popular modifications include such things as 180 hp engines and possibly constant speed props. Sound reduction through use of thicker windshield, long range tanks and electronic upgrades are common.
The large slotted flaps in older Cessnas can a nose down pitch in forward slips. A cautionary warning is in many POHs indicating that slips should be avoided when using maximum flaps. The pitching motion is the result of the difference between a strong wing downwash over the tail in straight flight to a reduced downwash influenced by a raised aileron in slipping flight. This effect is elusive hard to duplicate, I have experienced it only once in over 9000 hours. This restriction does not apply to the wing-low drift correction used in crosswind landings.
When the larger dorsal fin was adopted in the 1972 C-172L, this sideslip pitch event was eliminated. In the higher-powered C-172s the placard was applicable to a mild pitch from flap outboard-end vortex hitting on the horizontal tail at some combinations of side-slip angle, power and airspeed."
Over sixteen C-172s are involved in accidents every month. One accident every two days. This gives a rate per 100,000 flight hours of 1.46. Prior to 1977 the C-172 engine failure rate was one per every 5.6 million hours of operation. Only one in six of these accidents result in personal injury. Night accidents in C-172 occur at nearly a 20% higher rate than day accidents.
85% of all C-172 accidents are due to pilot error. This is more than accidents in other types. The aircraft has been deemed responsible in 7% of the accidents. The percentage of C-172 accidents is highest when the pilot involved has between 100 and 200 hours of flight time. 50% of the accidents occurred when the pilot had less than 50 hours in the C-172 type aircraft. A high percentage of C-172 accidents have been attributed to inadequate checkouts.
C-172s have twice as many hard landings as a PA-28 (Cherokee) per aircraft. The C-172 is four times as likely to have a wind related accident. It has twice as many go-around accidents. NRI Flying Club has spent no less than $4,500.00 in the last two years on just nose-strut repair and nose gear rebuilding of O7U. This is certainly indicative of a problem in piloting, checkouts, and instruction. Making flat landings or nose wheel first are the problem.
The C-172 has half as many fuel exhaustion accidents as like powered low-wing aircraft. Crosswind takeoff and landing accidents were relatively frequent and attributable to inadequate checkouts. The second major area of accident was the go-around, which has been partially corrected by Cessna by reducing flap extension to only 30 degrees on later models. Serious C-172 accidents were generally related to controlled flight into terrain or obstructions. (Low level flight) To fly the C-172 you must practice landing in different flap configurations and power settings. You must know how to hold the control for taxiing. The C-172 go-around requires anticipation and attention to the procedures for flap removal. It takes practice of the right kind to bring an improvement and a change in our maintenance costs. Years ago the Club lost a C-172 because the pilot attempted to make a go-around without removing at least partial flaps.
Airworthiness Directives are less common to the C-172 than other aircraft. Check the security of the aileron counterbalance weights, seat tracks for locking, flaps for smoothness of jack screw, and the panel lighting rheostat and you have the ADs pretty well covered.
First decide that aircraft is idling correctly
1. Operate engine for 1- minute at 1200 rpm. This might be done taxiing but it is relatively hard on the brakes.
2. Increase to 1800 for 20-seconds
3. Reduce to 1200 rpm and kill with mixture.
Takeoff/Landing comparison
C-150 Take Off 735' /50' 1385 Landing Distance 445 /50' 1075
C-172 Take Off 945 /50' 1685 Landing Distance 550 /50' 1295
C-182 Take Off 795 /50' 1625 Landing Distance 545 /50' 1285
An airplane should not be expected to get out of a space where it has landed.
C-172 Differences and Checkout
Be careful loading a C-172. A C-172 has four seats but is really a three passenger aircraft. Avoid putting weight in the back. C.G. is critical. What you can carry and where you can carry it will depend on the individual situation. Fuel consumption can cause a shift in the C. G. range. Useful load varies because of installed equipment that is included in the empty weight. Fuel consumption will vary with the loading. A heavy C-172 will require fuel after less than three hours of flight. Don't believe the manual on range, speed, capacity, or fuel consumption.
The time of year (temperature) has a significant effect on C-172 performance. Aircraft performance early in the morning or in the winter will decrease at warmer temperatures. What the C-172 was able to do in the winter, it will not be able to do in the summer. Warm air does not have the same ground effect as cool air. The C-172 is NOT a good high altitude or density altitude aircraft. C-172 performance requires careful planning, loading, cruise, and flight procedures.
Some of the performance for the C-172 at gross is poorer than that of the Cessna two-seaters. The C-172 takes longer to accelerate to its cruise of 100+ Kts than a C-150 does to its cruise of 85 Kts. Your first takeoff in a C-172 will surprise you as it departs for the left side of the runway when power is applied. You must anticipate this P-factor and torque with right rudder. Controls are heavier and response slower than trainers. Correct trim use becomes important. Failure to anticipate trim settings is a typical pilot problem.
Trim adjustments must be made during the descent and fine adjustments made when level. If the climb and level off is done at assigned altitude, then the plane must be deliberately over trimmed to require backpressure to hold the altitude. The altitude must be held for up to three minutes at higher density altitudes before any power reduction. This allows the plane to accelerate rather than climb.
The most important adjustment between flying the C-150 and the C-172 is in performing the transition from climb to level cruise. For the next several minutes the airplane will proceed to both accelerate and climb. The 'new to type' pilot will be several hundred feet high and have to go through the leveling process all over again. Because of its power to weight ratio and drag, the C-172 takes a while to accelerate from climb to cruise speed.
The pilot must be prepared to anticipate the amount of trim setting and yoke pressures required to maintain altitude for the time it takes the C-172 to accelerate to 100 kts. At 100+ knots the power should be reduced to 2450 rpm and trim adjusted. Even slight changes in altitude or power during this transition can make the transition to level flight take much longer. If the climb and level off is to be done at an assigned altitude, then the plane must be deliberately over-trimmed to require backpressure to hold the altitude during acceleration.
The most common fault in leveling off is to trim for level flight immediately and then proceeding to other activities. For the next several minutes the airplane will proceed to both accelerate and climb. The 'new to type pilot' will be several hundred feet high and have to go through the leveling process all over again. One solution for this is to climb 1 to 2 hundred feet higher than the desired altitude and then dive and accelerate to the assigned altitude. (Not an IFR procedure) Trim adjustments must be made during the descent and fine adjustments made when level.
The C-172 can be flown just like a C-150, however, to do so is both uneconomical and a sign of incompetence. In several very important particulars the C-172 should be flown differently than the C-150. While the C-172 may have more horsepower than the C-150, it actually has less power per pound. The C-150 can be made to climb at gross with full flaps. The C-172 has difficulty just to maintain altitude. Any go-around with a C-172 must include removing the drag due to flaps. Because of its power to weight ratio, the C-172 takes a while to accelerate in any situation. The new 160 h.p. engine will help but only marginally. Additional power benefits climb more than any other performance factor.
The C-172 has a much higher and deeper instrument panel, which may require shorter pilots consider putting their flight materials into a pillow type carrying case. When level, the C-172 seems to have a slightly nose down attitude somewhat different than that of a C-150. In level flight the nose is low enough to be easily seen over. The C-172 nose position is one of the transitions you need to get used to. The C-172 now has a four position fuel selector. An imbalance in fuel use can be corrected only by going to the fullest tank for a period of time. Don't try to put the selector part way or your engine will stop. Older C-172s require single tank operation above 5000'.
If the trainee has been taught to slow the C-150 on airport arrival prior to the numbers, this rather uneconomical technique will carry over to the C-172. The fact is that the extra speed of the C-172 on downwind will give the correct pattern size and spacing if properly used. For instance, to obtain 1500 RPM in the C-172 the throttle setting should initially be reduced only to 1700 RPM. As the aircraft decelerates at the pattern altitude, the RPM will fall to 1500 RPM. The entire transition process becomes very easy if the constants of trim, power setting, airspeed, are carried from the C-150 to the C-172. The pattern speeds of the C-172 may be different from downwind, and, base. These speeds while different are constant. Slow to 80 knots after the numbers, 70 knots on base and 60 knots for final. Other speed sequences will work just as well.
The older C-172, like the C-150, has a built in engineering relationship between power setting, flap application, and trim. Knowledge of these factors allow a pilot to 'know' what power, flap and trim settings will give the 'hands-off' performance desired. The C-172 requires full movement of the trim for no flap slow flight and only 17/1800 RPM. Abeam the numbers, three down trims and power to 1700 from cruise will give 70 kts and 1500 RPM at the key position just before base. A one for one with 10 degrees of flaps and trim will maintain 70 kts until turning final. On final full flaps will not require any additional trim and the approach speed will fall to 60 kts. After landing and flaps up, the aircraft is properly trimmed for climb. (Likewise, the C-152)
The flap and no-flap pattern and approach speeds of a C-172 can be the same. The use of flaps improves the aiming descent angle on final and can reduce the ground impact speed. Proper flare in a C-172 greatly reduces structural loads and touchdown speed. You must work to get a full-stall minimum speed touchdown in the C-172. The C-172 tends to lose elevator power in flare and will be unable to raise the nose unless the elevator effectiveness is augmented by prop-wash. Try landing with 1200 rpm and see the difference attained in nose attitude. The landings are even easier with less than 40-degrees of flap.
The landing configuration with flaps means that the runway will not be in view for a proper (full stall) landing. The C-172 nose position is one of the transitions you need to get used to both for level and landing. Good landings of the C-172 with the nose wheel off the ground require precise use of yoke, flaps, and power. To fly the C-172 you must practice landing in different flap configurations and power settings. You must know how to hold the control for taxiing. The C-172 go-around requires anticipation and attention to the procedures for flap removal. Evidence based on NRI maintenance would indicate an on-going problem.
One of the more difficult aspects of making the transition to a C-172 is directly related to its power to weight ratio. The C-172 takes longer to achieve cruise speed when leveled off than do most other aircraft. The traditional saying is, "How long does it take a student to level off a C-172?" (Answer below)
I have found it desirable to initiate the instruction from established cruise airspeed with power at 2450 rpm. Note the airspeed indicated at cruise. Have the student index (memorize) the amount of trim change required to establish a hands-off climb at 75 knots at full power. With this information a student can learn to level off a C-172 quite quickly as well as initiate a stabilized climb.
I have found many students who come to me with prior instruction tend to level off with an initial reduction to cruise power. WRONG! This means that a C-172 must accelerate to cruise speed using cruise power. It will take several minutes and a constant adjustment of the trim. Typical result is for the aircraft winding up 200' high and still out of trim. Students using this method will take 35 hours to learn to level off.
The most efficient way to level off a C-172 is to leave climb power full on during the initial leveling off. Use the yoke to lower the nose and forward pressure to hold heading and altitude. Roll the trim wheel up one full turn and perhaps a half more. Continue holding the heading and altitude while the aircraft accelerates to cruise speed. Use sound as an indicator as to when you should take a look away from the horizon and to the airspeed indicator. At cruise speed reduce power to 2450.
Exceeding cruise speed or being below cruise speed before reducing the power means that your trim setting as indexed will be wrong. This means you must hold heading and altitude with yoke pressure until the aircraft acquires its natural cruise speed. This problem is easily avoided by reducing the power at the proper time.
One way to check the level cruise attitude and trim is just to place both hands on the cowling pad and note that the nose begins to drop. Put your hands over your head and the nose rises. Normal hand position gives level flight.
The more accurately you determine normal cruise speed and the index of trim difference between climb and level the faster you can level off. For those who are working on their IFR rating you might work on additional trim/power indexes as required for 90 knot climbs, level, and descents. Learn the sounds of your aircraft just as you know the sounds of your automobile. With a safety pilot practice making the throttle and trim changes with your eyes closed...it can be done and makes it so that flying the airplane is not a part of the IFR problem.
For a given configuration (Weight, flaps, gear, etc.) Pitch + Power = Performance. Otherwise, if you pitch to Vy attitude, add full power on your Skyhawk you expect to get about 75kts airspeed and 700 fpm climb(Performance). (Standard conditions +10-20 degrees.)
Useful information to know would be the pitch attitude and power setting (RPM) to use to maintain altitude, descend at 500 fpm and climb at 500 fpm while holding 75 kts airspeed. Do the same for 65 and 85 kts. For highest speed flying go to 7500 feet with 2700 rpm and leaned. For fuel efficiency use 2500 rpm for a 10% fuel saving.
If you can fly the same aircraft most of the time you can develop a sense, which will help you immensely. Set any configuration you want, and listen to the sounds. By changing the configuration you can get an ear for the next set of specific sounds. You can literally learn to tune your aircraft by ear. You can find a functional relationship between RPM and air speed in a specific configuration.
Aircraft damage due to landings is mostly accumulative. Occasionally it happens all at once but usually it is accumulative. The gearbox can take thousands of average landings without any damage. The spring gear can take a heck of a beating. The severe damage to Cessnas is to the gear box underneath the seats. One falling out of the sky from 20' can break the box. Repair or replacement of a C-172 gear box can cost $9,000. The nose gear is attached to the firewall. A very hard landing on the nose wheel can damage the firewall. Flying an aircraft with a bent firewall is enough to trigger an FAA investigation. Try to inspect the firewall of a C-172 or C-182 without removing the cowling. Is the nose wheel fork bent? Inadequate preflight the FAA calls it. It took me 14 months to shake them loose.
The accumulative damage mostly occurs to the nose gear. The oleo strut can survive forever if the landings are on the main gear. When the nose wheel becomes a part of the initial landing contact it becomes life limited. Every compression of the strut loses some air and perhaps oil. If the strut is not cleaned prior to every flight the accumulated oil and dirt act like sandpaper on the 'O' ring. After a number of nose wheel compression cycles the strut will become flat and knock against the wheel even when taxiing. Every subsequent landing causes the shock of the nose wheel landing to be transmitted into the firewall and the engine mounting. Now, the damage is not just to the gear but in the engine and the aircraft airframe. I recently (February '94)saw someone taking the NRI 172 and make somewhere between 4 and 6 touch-and-go's. Every one of the 'landings' was flat. Not once was the nose wheel held off the runway for even a moment.
Not long before that I saw four people get into the C-172. I questioned the pilot regarding weight and he said that he was in limits. When the heavy-weight of the group got into the back seat, I again approached the pilot and suggested that balance might be a problem. Is there a problem or is Gene Whitt making one? Saw the same thing in Hayward yesterday 11-14-98.
What can be done? First, I don't believe anyone deliberately, and knowingly damages an aircraft or exposes passengers to danger. A pilot may have erroneous perceptions as to what makes a good landing. Maybe, there is a problem with knowing aircraft attitudes. Is establishing a stabilized approach at a constant airspeed the problem? Very possibly, it is caused by a situation beyond the pilot's experience. Consider.
A single pilot in a C-172 with his seat well forward. The C-172 has a full radio stack. The aircraft is within C.G. limits. A final approach at 60 knots will give the elevators enough authority to round out. As the aircraft decelerates below 60 knots the elevator loses authority and may well be unable to raise the nose even if full back and up. This is especially true if the power has been taken off.
Under these conditions, what should the pilot do? If you can't arrange to get one passenger in the back seat, you should plan to leave at least 1200 rpm. The power will help hold the nose up and give the elevator the authority required for a full stall landing. Very careful energy management will be required to avoid a balloon. It can be done to a full stall landing every time. You will not be able to see the runway. The nose wheel will remain well clear of the ground. Power can be applied for the takeoff and the flaps removed without the nose wheel ever touching the ground. Alternatively, the power can be taken off as the nose wheel touches.
If the C-172 is fully equipped with radios and panel gear, a full stall landing may vary from difficult to impossible depending on the seat position of the pilot. Landing with power at 12-1300 rpm as in a soft-field landing will make full stall landings easier. The C-172 lands better with a rear seat passenger.
Since CCR refueling practices avoiding fuel overflow, be sure to make an allowance for less than full tanks. A fuel tank will not hold as much useful fuel on a hot day.
A C-172 at a density altitude of 11,000' and properly leaned will only develop 98 horsepower instead of its 160 at sea level. We now have a C-172 attempting to takeoff with a C-150 engine. This is not a takeoff situation even leaned and suicidal with a rich mixture. With a rich mixture you would be pumping over 10 gallons an hour of fuel into a engine which for best power should only have 7 gallons per hour. You lose from an overly rich mixture in many ways. Wings and propeller cannot be turbocharged so their capability cannot be changed. CCR density altitude at 100 degrees F is 3000'. Plan and fly accordingly.
Go to slow-cruise of 90 knots and reset the attitude indicator for level. Cover the AI. Initiate a climb with full power and confirm that the climb is reasonable both in attitude and airspeed. Reduce power for slow-cruise and make a 15 second right standard turn. Level off and initiate a descent by reducing power. Level off by adding power. Make a 15 second turn to the left. Do this several times to develop a sense of control and safety. You will learn that attitude plus power gives performance. The had move in unison on the yoke and throttle to give the desired performance. From this proceed to develop the attitudes and power required to give you all the performance parameters required for all performance situations. You want to learn to control the airplane so that flying is not a part of the instrument flying equation. There is no one way to initiate, perform, and conclude a given maneuver. The following procedures are merely suggestive as one way.
1. Abeam numbers, power back to 1,700rpm. Hold the heading and altitude.
2. Decelerate and trim for 70 knots.
3. 10 degrees of flaps, trim for 70 knots
4. 20 degrees of flaps on base. Trim for 70 knots
5. Turn final, flaps as required, trim for 60 knots.
6. Use power as the variable to control arrival.
7, Use rudder/ailerons to align with runway
8. Make small pitch corrections in the roundout.
9. Flair as the numbers go under your nose.
10.Keep holding a little back pressure
11.When you feel the plane starting to settle, raise the nose to cover the far end of the runway.
Precision approach speed-no flaps
Clearing turns
carburetor heat
Power to 1500
Hold altitude with yoke
Trim down as far as it will go
Power to 1800 for minimum controllable at 50 knots
Power to 2000 for slow flight @ 60 knots
Level cruise
Full power until 100 knots
Power to 2450
Trim
Climb at 90 knots
From level cruise
Raise nose to climb attitude
full power
One+ trim down.
Fine trim for airspeed
Level approach speed at 90 knots
From level cruise
Power to 2200
One+ trim up
Level approach speed at 90 knots #2
From Climb
Lower nose
Lower nose to level
At 90 knots reduce power to 2200
Fine trim
Descending approach speed at 90 knots
From climb
Reduce power to 2000
Lower nose to descent attitude
Fine trim for airspeed
Approach descent speed at 90 knots
From level approach speed
Power to 20000
Fine trim
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Continued on C-182 RG