Task XI.B
Constant Airspeed Climbs
To determine the applicant understands attitude instrument flying during constant airspeed climbs, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction, solely by reference to instruments.
References: FAA-H-8083-2, FAA-H-8083-3, FAA-H-8083-9, FAA-H-8083-15, FAA-H-8083-16, FAA-H-8083-25; POH/AFM
Quick Review
Conversational Q&A — quiz yourself before the oral.
Three separate skills, and you brief them as three:
- Transition to the climb pitch attitude and power setting on an assigned heading, using proper cross-check, interpretation, and coordinated control application (S1).
- Climb at a constant airspeed to specific altitudes, in straight flight and in turns (S2) — the turning climb is in the standard, not optional.
- Level off at the assigned altitude and hold altitude ±100 feet, heading ±10°, airspeed ±10 knots (S3).
Note where the tolerance lives: it is applied after the level-off. The climb itself is judged on constant airspeed and heading control.
From cruise airspeed: raise the miniature aircraft to the approximate nose-high indication for the predetermined climb speed, apply light back-elevator pressure to initiate and maintain the attitude, and advance power to the climb setting either simultaneously with the pitch change or as the airspeed approaches climb speed (IFH 7-14).
Two teaching refinements worth stating in the brief. If the transition is smooth, the VSI shows an immediate upward trend, continues to move slowly, then stops at a rate appropriate to the stabilized airspeed and attitude — a VSI that jumps is an overcontrol cue you can point at. Entering from climb airspeed rather than cruise — decelerate in level flight first, then pitch and power together — is easier and more accurate, especially on partial panel (IFH 7-14).
During the entry, before the airspeed stabilizes: the attitude indicator is primary for pitch, the heading indicator is primary for bank, and the tachometer or manifold pressure gauge is primary for power (IFH 7-14).
Once stabilized at a constant airspeed and attitude: the airspeed indicator becomes primary for pitch, the heading indicator remains primary for bank, and the tach or manifold pressure gauge remains primary for power (IFH 7-15).
The shift is the whole lesson. Say it as a sentence a student can repeat: in a constant airspeed climb, airspeed is a pitch problem and rate of climb is whatever the airplane gives you. If the airspeed is off, make an appropriately small pitch correction (IFH 7-15).
The roles swap. As the vertical speed stabilizes near the desired value, the VSI becomes primary for pitch and the airspeed indicator becomes primary for power (IFH 7-15).
Give the student the coupled correction, because pitch and power must be closely coordinated (IFH 7-16). Rate correct, airspeed low: add power, then lower the miniature aircraft slightly to hold the vertical speed constant. Rate high and airspeed low: lower the miniature aircraft slightly and watch the airspeed to decide whether a power change is also needed.
A constant rate climb is not in AI.XI.B.S2, but knowing both is how you answer "what if I ask for 500 fpm?"
Start it before reaching the altitude. Lead the altitude by 10 percent of the vertical speed shown: 500 fpm gives a 50-foot lead, 1,000 fpm a 100-foot lead (IFH 7-16).
Then which level-off matters. To cruise airspeed: apply smooth, steady forward pressure toward the level-flight attitude for the speed you want, hold climb power while the airplane accelerates, and reduce to the cruise setting as the airspeed approaches cruise — the amount of lead on the power reduction depends on how fast the airplane accelerates (IFH 7-16). To climb airspeed: lower the nose to the level-flight attitude for that speed and reduce power simultaneously, at a rate proportionate to the pitch change, so the airspeed stays constant (IFH 7-16).
Trim off the pressure and keep the cross-check accelerated until the airplane is positively established in level flight (IFH 7-19).
From the IFH list for straight climbs and descents (IFH 7-18–7-19):
- Overcontrolling pitch on entry — until the student knows the pitch attitude that goes with the climb power setting, the inputs will be too large. "Small pressure, then wait for the instruments to answer."
- Failure to vary the rate of cross-check during the attitude, power, and speed change. "Speed up your scan — three things are changing at once."
- Failure to maintain the new pitch attitude as airspeed decays and control pressures change. "Hold the picture, re-trim, keep scanning."
- Failure to trim off pressures — without trim you cannot tell whether a pressure change is aerodynamic or your own hand.
- Failure to learn and use proper power settings.
- Failure to cross-check both airspeed and vertical speed before making a pitch or power adjustment.
- Chasing the VSI instead of cross-checking the other pitch instruments.
- Failure to note the rate of climb to compute the level-off lead — the direct cause of overshooting.
The vertical component of lift decreased in the bank, so the same pitch attitude now produces a steeper climb angle and a lower airspeed. In a constant airspeed climb the airspeed indicator is primary for pitch — so the correction is pitch, not power: lower the nose slightly to reestablish the climb speed and accept the reduced rate of climb.
Then the second half of the lesson: bank in a climbing turn shows up as airspeed loss long before it shows up on the VSI, so the airspeed indicator is the early-warning instrument. Keep the bank shallow — the standard asks for a climb "in straight flight and turns" (AI.XI.B.S2), not a demonstration of steep turning climbs.
- Collision hazards (AI.XI.B.R3) — the nose-high attitude blanks the area you most need to see, and your student cannot see anything. Clear the airspace ahead of the climb and consider gentle S-turns for visibility before the climb block.
- Loss of situational awareness and altitude (AI.XI.B.R4) — assign the level-off altitude out loud and make the student read it back. "Failure to note and remember a preselected heading" is on the IFH heading-error list (IFH 7-13); the same failure applied to an assigned altitude is what puts a climbing student through their level-off.
- Fixation and omission (AI.XI.B.R5) — during a climb the omitted instrument is almost always the heading indicator, because pitch and power are absorbing the student. Torque and P-factor are yawing them left the entire time.
- Trim (AI.XI.B.R8) — a climb is where an untrimmed airplane is hardest to hold; trim is what buys back the scan.
- Engine considerations — sustained full-power climbs, cowl flaps and temperatures per the POH/AFM, and a hood-wearing student who cannot see the terrain ahead.
- When to seek assistance or declare an emergency (AI.XI.B.R2) — a climb is where a marginal engine, a rising temperature, or a cloud base you are about to enter announces itself. Teach the trigger: advise ATC and, if necessary, declare an emergency before the situation deteriorates beyond the pilot's ability to recover (IFH 11-7). Declaring is the correct reaction, not a failure — ATC then gives priority handling, and 91.3 permits the PIC to deviate as required (AIH 1-20).
The student is trained to the private ACS standard for their certificate; the numbers you must produce on the CFI practical test for this Task are altitude ±100 feet, heading ±10°, and airspeed ±10 knots after the level-off (AI.XI.B.S3), plus the ability to analyze and correct common errors (S4).
That last element is the one applicants lose. Demonstrating a clean climb is half the Task; the evaluator will fly it badly on purpose, or ask you to describe an error, and expect you to name the error, name its cause, and give the corrective action in the airplane, in one or two sentences.
Deep Dive
Making the climb teachable
Demonstrate it exactly as you want it flown, in the same sequence in which you explained it — learners imitate the instructor's performance (AIH 9-6).
- "Heading 270, altitude 3,000, climbing to 4,000 at 80 knots. Say it back to me."
- "Attitude indicator up to about one bar width — that's the picture for 80 knots in this airplane. Power up to the climb setting."
- "Watch the VSI: an immediate trend up, then it settles. Smooth entry."
- "Airspeed's stabilized at 80 — from here airspeed is my pitch instrument. It reads 84, so I lower the nose slightly."
- "Heading indicator — 268. Right rudder, back to 270. Torque has been pulling us left the whole climb."
- "Trimmed. Now my scan is free."
- "Passing 3,950 — we're doing 500 a minute, so I lead by 50 feet. Nose to the level picture, hold climb power, let it accelerate."
- "Cruise speed coming — power back to cruise, trim, re-scan."
Use a known-to-unknown progression (AIH 9-6): the student already knows the visual climb picture and the climb power setting from Area IV. In level flight, have them set climb power and hold altitude, and note the resulting attitude and airspeed; then let the nose come up to the climb attitude and note that the airspeed settles at the climb speed.
Attitude alone means nothing — the same bar-width picture is 500 fpm at 90 knots in a light single and 2,000 fpm at 250 knots in a jet (IFH 6-13), so it has to be taught as a combination. The pairing — this attitude plus this power equals this airspeed — is what turns a guess into a repeatable setup, and it is exactly the knowledge the IFH says reduces cross-check and interpretation problems (IFH 7-11).
Because three things change simultaneously — attitude, power, and airspeed — and each one changes the control pressures required for the others. The IFH is explicit that the cross-check rate must increase during speed, power, and attitude changes, and that failing to vary it is a common error in its own right (IFH 7-18).
There is a second, physiological reason worth briefing under AI.XI.B.R1: a rapid acceleration stimulates the otolith organs the same way as tilting the head backward, producing the somatogravic illusion of a nose-high attitude. The disoriented pilot pushes into a nose-low or dive attitude (IFH 3-6). A climb entry is exactly that stimulus. Tell the student the sensation is coming, name it, and require them to answer it with the instruments — the illusions cannot be prevented, only ignored through trained reliance on the panel (IFH 3-9).
When you take the controls, and when you take the hood
You have two escalating tools here that a VFR maneuver task does not give you, and they are not the same move. Removing the hood returns the student's outside references and usually fixes disorientation by itself. Taking the controls removes the airplane from them. Reach for the hood first — it corrects the cause; taking the controls only corrects the symptom, and it costs the student the lesson.
Call "look outside" and remove the hood when:
- The student is chasing the attitude indicator and the corrections are growing rather than damping
- The somatogravic illusion has taken hold — they are pushing the nose down against a stable indication and telling you it feels nose-high (IFH ch. 3). A disoriented student does not argue their way out; they need the horizon
- Airspeed or heading is diverging and the student has stopped scanning — fixation with no cross-check is not something you coach through mid-climb
Take the controls, announcing "I have the flight controls", when:
- You are approaching the assigned altitude with no level-off underway and no response to the callout
- Bank is increasing unnoticed in a climbing turn while airspeed decays — the entry to a spiral, and the student's instruments are telling them so while they look at the airspeed indicator
- You are about to enter cloud, terrain clearance, or traffic the student cannot see. Your student is under a hood; you are the only set of eyes, and AI.XI.B.R3 puts that squarely on you
- The student freezes — under the hood this presents as silence and no control input at all
Brief both calls before the hood goes on, and brief them as routine. "Look outside" said calmly is a teaching tool; said sharply for the first time at 500 feet below the assigned altitude, it reads as failure and the student stops trusting the exercise.
Official ACS elementsreference
Knowledge6 elements
The applicant demonstrates understanding of:
AI.XI.B.K1Flight instruments as they relate to:AI.XI.B.K1aInstrument limitations and potential errorsAI.XI.B.K1bIndication of the aircraft attitudeAI.XI.B.K1cFunction and operationAI.XI.B.K1dProper instrument cross-check techniquesAI.XI.B.K2Common errors related to this Task.
Risk Management8 elements
The applicant is able to identify, assess, and mitigate risk associated with:
AI.XI.B.R1Instrument flying hazards, including failure to maintain visual flight rules (VFR), spatial disorientation, loss of control, fatigue, stress, and emergency off airport landings.AI.XI.B.R2When to seek assistance or declare an emergency in a deteriorating situation.AI.XI.B.R3Collision hazards.AI.XI.B.R4Distractions, task prioritization, loss of situational awareness, or disorientation.AI.XI.B.R5Fixation and omission.AI.XI.B.R6Instrument Interpretation.AI.XI.B.R7Control application solely by reference to instruments.AI.XI.B.R8Trimming the aircraft.
Skills4 elements
The applicant exhibits the skill to:
AI.XI.B.S1Transition to the climb pitch attitude and power setting on an assigned heading using proper instrument cross-check and interpretation, and coordinated flight control application.AI.XI.B.S2Climb at a constant airspeed to specific altitudes in straight flight and turns.AI.XI.B.S3Level off at the assigned altitude and maintain altitude ±100 feet, heading ±10°, and airspeed ±10 knots.AI.XI.B.S4Analyze and correct common errors related to this Task.