The Impossible Turn

Engine failure at 400 feet AGL, a steep turn back to the runway, and the aerodynamic trap that kills pilots

Cessna 182 Skylane · Tampa International Airport (KTPA) · Commercial · Takeoff / Initial Climb

The scenario

• {'label': 'Field', 'value': 'KTPA · Tampa'}
• {'label': 'Runways', 'value': '10/28 · 19L/01R · 19R/01L'}
• {'label': 'Elevation', 'value': '26 ft'}
• {'label': 'Aircraft', 'value': 'C182'}
• {'label': 'Dominant phase', 'value': 'Landing / Takeoff'}

The decision

Before we get into the decision tree — what do you know about engine failure at low altitude and the 'impossible turn'? (Pick all that apply; this records your baseline.)

What the record shows

What the NTSB files show

Key lesson — After engine failure at low altitude, accept the forward landing. Do not attempt a steep turn back to the runway. The 'impossible turn' is a trap: the bank angle steepens, stall speed rises, airspeed bleeds off, the nose drops, and the turn tightens into a spiral dive. At 400 ft AGL, recovery is impossible. The C182's weight and energy make this trap even more dangerous. Commit to the best available terrain ahead — a park, a large parking lot, an open field — and execute a controlled forward landing. Survival rates in controlled forward landings are significantly better than in stall/spin accidents.

Debrief — teaching points

The 'impossible turn' is real — and it kills pilots.

After engine failure at low altitude (below 1,000 ft AGL), a 180° turn back to the runway is aerodynamically marginal. The pilot must maintain a shallow bank (15° or less), fly at or above best glide speed (70 KIAS in the C182), and have sufficient altitude to complete the turn without stalling. At 400 ft AGL, these constraints are tight. The C182 is heavier and faster than a 172; it carries more energy and requires more altitude to execute a safe turn. The NTSB precedents (WPR17FA152, LAX93LA048, ERA14FA123, SEA90LA162) show that pilots who attempt steep turns at low altitude stall and spin. All were fatal. The correct decision is to commit to a forward landing in the best available terrain ahead.

Stall speed increases in a turn — and at low altitude, that is a trap.

In a 15° bank, stall speed rises to roughly 55 KIAS. In a 20° bank, to 58 KIAS. In a 25° bank, to 60 KIAS. In a 30° bank, to 65 KIAS. At 400 ft AGL with an engine failure and a rough engine, maintaining airspeed above the stall speed for your bank angle is the critical constraint. If you attempt a steep turn to tighten the turn back to the runway, stall speed rises, airspeed bleeds off, the nose drops, and the turn tightens into a spiral dive. At low altitude, recovery is impossible.

The C182 is heavier and faster than a 172 — it carries more energy.

The C182 Skylane (230 hp, constant-speed prop, 2,950 lb gross weight) is a high-performance airplane. It is faster, heavier, and more nose-heavy than the 172. It carries more energy on approach and requires a longer landing distance. On takeoff, it climbs faster but also requires more altitude to execute a safe emergency turn. If you are transitioning from a 172 to a C182, do not assume the same emergency procedures apply. The C182 needs more altitude and a shallower bank to execute a safe turn back to the runway.

Carburetor ice in the C182 is insidious — apply heat proactively.

The C182's Continental O-470 is carbureted and susceptible to carburetor ice in warm, moist air — even at temperatures well above freezing. The FAA icing probability chart shows serious icing risk at glide power and moderate risk at cruise power in the temperature range of roughly 20–30°C with high relative humidity. Apply carburetor heat proactively in conducive conditions — during the run-up check (and confirm the expected RPM drop, then recovery) and during climb in visible moisture or high humidity. Waiting for the roughness to appear at 400 ft AGL is waiting too long.

At KTPA Runway 10, an engine failure on departure is a forced landing in development.

The off-field environment off Runway 10's departure end (heading 092°) is dense development, open developed areas (parks, large lots), and wooded wetland — marginal forced-landing terrain. There is no open field, no water, no road. A forward landing in a park or large parking lot is survivable; a stall/spin at 200 ft AGL is not. Know this before you line up on Runway 10. Best glide is 70 KIAS. Doors unlatched before impact. Master off just before impact. Flaps for slowest possible touchdown speed — impact energy rises with the square of touchdown speed, so the slowest possible speed matters most.

Built from the real accident record

Scenario built from NTSB SEA05FA034 (2005 C182 engine failure / attempted return, fatal), GAA18CA552 (2018 C182 hard landing after precautionary return), CEN15LA319 (2015 C182E engine loss post-takeoff, undetermined cause), and regional precedents WPR17FA152, LAX93LA048, ERA14FA123, SEA90LA162 — all fatal stall/spin accidents during low-altitude emergency turns. Real events occurred at other airports — NOT at KTPA.

NTSB reports: SEA05FA034 · GAA18CA552 · GAA17CA361 · CEN15LA319 · WPR17FA152 · LAX93LA048 · ERA14FA123 · SEA90LA162

ACS tasks: PA.I.F — Weather Information · PA.I.G — Cross-Country Flight Planning · PA.IX.C — Emergency Approach and Landing · PA.I.H — Human Factors · PA.II.B — Engine Starting / Systems Preflight · PA.V.A — Preflight Inspection · PA.V.B — Cockpit Management

Relevant FARs: §91.3 · §91.13 · §91.185 · §61.31

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