The Impossible Turn — Clearwater Air Park
Partial engine power loss on initial climb, a low-altitude turnback attempt, and the aerodynamic trap that kills pilots
The scenario
Departing Clearwater Air Park (KCLW), Clearwater, FL — Runway 16, initial climb on a 155° heading. Elevation 71 ft MSL. You are a Private pilot with 180 hours total time, current and proficient. This is a local VFR flight in a Piper Cherokee 180 (PA-28-180), solo, full fuel, within weight and balance.
It is a warm, hazy Florida afternoon in July: OAT 32°C, dew point 24°C, altimeter 29.89. Density altitude is approximately 1,800 ft — the airplane will perform as if it were at 1,800 ft elevation, not 71 ft. Scattered clouds at 3,500 ft, visibility 10 SM. Light turbulence from thermal activity. This is a high-DA day.
You have completed a thorough preflight and run-up. The engine ran smoothly at 1,700 RPM and 1,000 RPM. Magnetos checked: right mag 150 RPM drop, left mag 175 RPM drop, differential 25 RPM — within limits. You did not apply carburetor heat during the run-up because the engine ran smoothly and the air was warm. You did not lean the mixture aggressively because you were at low altitude and full rich is standard for takeoff.
You line up on Runway 16 (heading 155°). The off-field environment off the departure end is poor — dense development, low-density development, and medium development. There are no open fields, no roads, no parks. The terrain is built-up residential and commercial. An engine failure on the Runway 16 departure at low altitude is a forced landing into developed terrain — difficult, dangerous, and unforgiving.
You advance the throttle to full power. Airspeed accelerates: 30 knots, 40 knots, 50 knots. You rotate at 60 KIAS (Vr for the PA-28-180 at gross weight). The nose comes up. You are climbing at 65 KIAS (Vbg, best glide — also a reasonable initial climb speed). You are 200 ft AGL, heading 155°, climbing at 500 fpm.
At 250 ft AGL, the engine begins to run rough. The tachometer is unwinding. You have partial power — not a complete failure, but a significant loss. You have roughly 30 seconds of decision time before altitude becomes critical.
- {'label': 'Field', 'value': 'KCLW · Clearwater Air Park'}
- {'label': 'Runways', 'value': '16/34'}
- {'label': 'Elevation', 'value': '71 ft'}
- {'label': 'Aircraft', 'value': 'PA-28-180'}
- {'label': 'Dominant phase', 'value': 'Landing / Approach'}
The decision
Before we enter the decision tree — what do you know about engine failure on initial climb in a single-engine airplane? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB LAX01FA199 (2001, FATAL): A Piper PA-28-180 student pilot on a solo instructional flight at Big Bear City, California selected a downwind takeoff runway and stalled during initial climb at low altitude, striking trees. The accident was attributed to inadequate airspeed management and a downwind takeoff, with contributing factors including partial engine power loss from an inoperative right magneto and high density altitude. The pilot attempted a steep turn back to the runway at low altitude and stalled. The outcome was fatal.
NTSB ANC90LA112 (1990, FATAL): A heavily loaded Piper PA-28 crashed into trees approximately 40 seconds after takeoff from a closed dirt strip after encountering a downdraft. The airplane could not overcome the downdraft with available power. Contributing factors were heavy loading and engine degradation from improper maintenance. The pilot's attempt to turn back to the runway at low altitude with insufficient power and altitude resulted in a stall/spin.
NTSB WPR17FA152 (2017, FATAL): An experimental Jansen Pazmany PL-2 lost engine power shortly after takeoff from El Monte, California. The pilot attempted to return to the runway but stalled and spun at approximately 200 feet AGL, impacting terrain in a near-vertical attitude. The accident resulted from fuel starvation and the pilot's decision to return to the runway at low altitude, which led to an aerodynamic stall and spin.
NTSB LAX93LA048 (1992, FATAL): A Rans S-10 Sakota on a personal flight experienced engine power loss shortly after takeoff and stalled/spun while maneuvering to land at 150–200 feet. The accident resulted from loss of engine power and pilot failure to maintain airspeed above stall speed, with insufficient altitude for recovery.
NTSB ERA14FA123 (2014, FATAL): A Sonex experimental aircraft experienced partial engine power loss due to an improperly seated spark plug during initial climb. The pilot made a steep 180-degree turn back toward the airport at low altitude, resulting in a stall and spiral descent into a canal. The accident resulted from the pilot's failure to maintain adequate airspeed during the emergency return.
NTSB SEA90LA162 (1990, FATAL): A Vaden SA102 Cavalier experimental homebuilt experienced engine power loss during initial climb and entered a spin when the pilot failed to maintain airspeed during the left turn. The accident resulted from the pilot's failure to maintain airspeed following engine power loss.
The consistent thread: engine failure on initial climb at low altitude is survivable if the pilot commits to landing straight ahead or in the best available field. It is fatal if the pilot attempts a steep turn back to the runway. The 'impossible turn' — a 180° turn at low altitude with partial or no power — is unrecoverable. Stall speed in a 30° bank is approximately 68 KIAS; in a 45° bank, it is 75 KIAS. At 250 ft AGL with 65 KIAS airspeed, a steep turn is a stall waiting to happen. The real accidents cited above all occurred at other airports and in other aircraft — NOT at KCLW. But the off-field environment at KCLW (dense development off Runway 16, low-density development off Runway 34) makes this scenario particularly unforgiving. There is no open field, no road, no park. A forward landing at KCLW is into developed terrain — difficult, dangerous, and unforgiving. But it is survivable. A stall/spin is not.
The lesson is absolute: after engine failure on initial climb, accept the forward landing. Do not attempt the impossible turn.
Key lesson — Engine failure on initial climb is survivable if you commit to landing straight ahead. It is fatal if you attempt a steep turn back to the runway at low altitude. The 'impossible turn' — a 180° turn with partial or no power at 250 ft AGL — will stall the wing. Stall speed in a 30° bank is 68 KIAS; at 65 KIAS airspeed, you are in the stall warning zone. The wing will stall. The airplane will spin. At 150 ft AGL, there is no altitude to recover. Land straight ahead. Accept the forward landing, even if it is into developed terrain. A controlled landing in the trees is survivable. A stall/spin is not.
Debrief — teaching points
The 'impossible turn' is the leading cause of fatal accidents after engine failure on initial climb.
After engine failure at low altitude, the pilot's instinct is to turn back to the runway. This instinct is lethal. A 180° turn at 250 ft AGL with partial or no power requires a steep bank (30° or more). In a 30° bank, stall speed increases from 59 KIAS to approximately 68 KIAS. If you are climbing at 65 KIAS (best glide), you are already below stall speed for the turn. The wing will stall. The airplane will spin. At 150 ft AGL, there is no altitude to recover. The NTSB has documented this pattern in dozens of accidents across multiple aircraft types. It is unrecoverable. Do not attempt it.
Stall speed increases significantly in a turn — the steeper the bank, the higher the stall speed.
In level flight, the PA-28-180 stalls at 59 KIAS (Vs, clean). In a 15° bank, stall speed rises to approximately 61 KIAS. In a 25° bank, it rises to approximately 65 KIAS. In a 30° bank, it rises to approximately 68 KIAS. In a 45° bank, it rises to approximately 75 KIAS. These numbers are not theoretical — they are the physics of lift and load factor. If you are climbing at 65 KIAS and you bank 30° to turn back to the runway, your stall speed is now 68 KIAS. You are below stall speed. The wing will stall. Shallow the bank to reduce stall speed, or level the wings and land straight ahead.
Best glide speed for the PA-28-180 is 65 KIAS — establish this speed immediately if power is lost.
Best glide speed (Vbg) for the PA-28-180 is 65 KIAS. This speed maximizes glide distance and gives the most time and distance to manage the emergency. It is also a reasonable initial climb speed on takeoff. If the engine fails on initial climb, establish 65 KIAS immediately. Do not try to climb harder or descend faster. 65 KIAS is the speed that gives you the most options.
At KCLW, the off-field environment off both runways is developed terrain — there is no open field.
Off Runway 16 (heading 155°), the off-field environment is dense development, low-density development, and medium development — houses, trees, power lines. Off Runway 34 (heading 335°), the off-field environment is low-density development, medium development, and open developed (parks/large lots). There is no open field, no road, no park. A forced landing at KCLW is into developed terrain. This is not a worst-case scenario; it is the geographic reality. A forward landing in the trees is survivable if you maintain 65 KIAS and add flaps for the slowest possible touchdown speed. A stall/spin is not.
Carburetor heat is the first response to engine roughness in a carbureted engine — apply it immediately.
The PA-28-180 has a carbureted Lycoming O-360. If the engine runs rough on initial climb, apply full carburetor heat immediately. The first symptom of carburetor ice is engine roughness and a dropping tachometer. However, engine roughness can also indicate a magneto issue, a stuck exhaust valve, or fuel system degradation. If carb heat does not restore power within 15–30 seconds, the problem is mechanical, not icing. Proceed with the engine-failure emergency procedures: land straight ahead, maintain 65 KIAS, add flaps as the landing spot is made.
High density altitude reduces engine power and increases takeoff distance — be aware of the performance penalty.
On a warm, humid Florida afternoon (OAT 32°C, dew point 24°C), density altitude at KCLW (elevation 71 ft) is approximately 1,800 ft. The airplane performs as if it were at 1,800 ft elevation. Takeoff distance is longer, climb rate is reduced, and engine power is degraded. This is not a worst-case scenario; it is a normal Florida summer day. Know your airplane's performance at high DA. If the engine is rough or power is degraded on takeoff, it may be a mechanical issue, not a DA issue. Apply carb heat and diagnose.
Built from the real accident record
Scenario built from NTSB LAX01FA199 (2001 PA-28-180 stall/spin on takeoff, partial engine power), ANC90LA112 (1990 PA-28 engine power loss / downdraft), WPR21LA020 (2020 PA-28-180 partial power loss), WPR13LA366 (2013 PA-28-180 partial power loss on takeoff), and regional low-altitude turnback precedents WPR17FA152, LAX93LA048, ERA14FA123, SEA90LA162. Anonymized and localized to KCLW.
NTSB reports: LAX01FA199 · ANC90LA112 · WPR21LA020 · WPR13LA366 · 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
Relevant FARs: §91.3 · §91.13 · §91.185
Step through the full decision tree, make the calls, and see where each choice leads — then debrief it with your CFI.
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