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SAMPLE SBTTakeoff / Initial Climb

The Impossible Turn

Engine failure on climb-out, low altitude, and the fatal temptation to turn back — a DA20-C1 decision study

Diamond DA20-C1 · Tampa Executive Airport (KVDF) · Private · Takeoff / Initial Climb

The scenario

Departing Tampa Executive Airport (KVDF), Tampa, FL — Runway 05, climbing out on a 42° heading. Elevation 22 ft MSL. This is a non-towered field; you are self-announcing on CTAF 123.05. You are in Class G airspace, but the overlying Tampa Class B (3,000–10,000 MSL) is close — stay below 3,000 MSL or request clearance.

It is a clear, calm morning: OAT 18°C, light wind from 080°. Visibility 10 SM. The runway is 5,000 ft of asphalt. Off Runway 05's departure end (heading 42°), the off-field environment is mostly wooded wetland, medium development, and pasture — not ideal for a forced landing, but better than water. Off Runway 23 (the reciprocal), the environment includes open water and pasture.

You are flying a Diamond DA20-C1 solo, full fuel (17.5 gallons usable), within limits. The airplane is a light, slippery composite trainer with a fixed gear, fixed-pitch prop, and a fuel-injected Continental IO-240 (125 hp). Single fuel tank, ON/OFF selector. You completed a thorough preflight, ran the engine on the ground, and confirmed fuel quantity by sight-gauge and dip-stick: full. The engine ran smoothly. You are ready to go.

Pilot: you — a Private pilot, current, roughly 250 hours total. You have 15 hours in the DA20. This is a local flight — a 45-minute round trip to a nearby airport and back. You did not file IFR. You are not on a flight plan. You are VFR, local, and the field is non-towered.

You line up on Runway 05, advance the throttle, and the DA20 accelerates smoothly. Rotation at 44 KIAS, liftoff at 52 KIAS. You are airborne. Gear is fixed, so no gear-up. You begin a shallow left turn to stay clear of the Class B to the east and climb toward 2,500 ft MSL.

The decision

Before we get into the decision tree — what do you already know about engine failure on climb-out in a light airplane? (Pick all that apply; this records your baseline.)

What the record shows

What the NTSB files show

NTSB WPR23LA324 (2023): A Diamond DA20 on an instructional flight lost total engine power during a simulated engine failure when the student advanced the throttle with the mixture leaned. The pilot made a forced landing off-airport; the accident resulted from improper fuel management and failure to follow the engine failure checklist. The lesson: fuel management and checklist discipline are non-negotiable, even in training.

NTSB ERA21LA250 (2021): A Diamond DA20 on a cross-country flight experienced total loss of engine power due to oil starvation caused by a missing oil sump drain plug after a 100-hour maintenance inspection. The flight instructor ditched the aircraft in the Chesapeake Bay near a fishing vessel where both occupants were rescued. The lesson: post-maintenance test flights are not optional, and a controlled ditching is survivable.

NTSB GAA19CA569 (2019): A Diamond DA20 experienced total engine power loss on approach due to fuel exhaustion after four flights in one day. The pilot made a forced landing on a service road between buildings and struck a tree, sustaining substantial damage. The probable cause was improper preflight fuel planning. The lesson: fuel quantity must be verified by sight-gauge AND dip-stick before every flight, and cumulative flight time across multiple legs must be tracked.

NTSB WPR17FA152 (2017, FATAL): A Pazmany PL-2 lost engine power shortly after takeoff. The pilot attempted to return to the runway but stalled and spun at approximately 200 ft AGL, impacting terrain in a near-vertical attitude. The probable cause was 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 ft. The probable cause was 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 probable cause was 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 probable cause was the pilot's failure to maintain airspeed following engine power loss.

The consistent thread: the 'impossible turn' — attempting to return to the runway after engine failure at low altitude — is fatal. The airplane will stall and spin before reaching the runway. At 250 ft AGL with an engine failure, the correct decision is to level the wings, establish best glide (73 KIAS in the DA20), and commit to a forward landing in the best available terrain ahead. The wooded wetland and pasture off Runway 05 at KVDF is rough, but it is survivable. A stall and spin at 100 ft AGL is not.

Real accidents cited above occurred at other airports and in other aircraft — NOT at KVDF. KVDF's own accident pattern shows LOSS_OF_CONTROL_GROUND (18.4%), HARD_LANDING (18.4%), FORCED_LANDING (15.8%), and LOSS_OF_CONTROL_INFLIGHT (13.2%) as dominant categories. This scenario is localized to KVDF to make the off-field environment real and consequential for you as a student here.

Key lesson — After engine failure at low altitude, accept the forward landing. Do not attempt a steep turn back to the runway — the airplane will stall and spin. Establish best glide (73 KIAS in the DA20), level the wings, and commit to the best available terrain ahead. At KVDF, off Runway 05, that terrain is wooded wetland and pasture — survivable. A stall and spin at 100 ft AGL is not.

Debrief — teaching points

The 'impossible turn' is fatal at low altitude.

After engine failure at 250 ft AGL, the temptation to turn back to the runway is powerful — the runway is right there, only 0.5 nm away. But the physics are unforgiving. At 250 ft AGL in a 20° bank, the stall speed is roughly 38 KIAS (vs. 36 KIAS level). At 250 ft AGL in a 30° bank, the stall speed is roughly 42 KIAS. The turn radius required to return to the runway is large, and the altitude is insufficient. By the time you realize you are not going to make it, you are in a steep turn at low altitude with an airspeed dropping toward stall. The airplane will stall and spin. There is no altitude for recovery. Accept the forward landing instead.

Best glide speed is 73 KIAS in the DA20 — establish it immediately.

After engine failure, the first action is to establish best glide speed (73 KIAS in the DA20). This maximizes glide distance and gives you the most time and distance to find a suitable landing surface. In the scenario, best glide gives you roughly 90 seconds and 0.8 nm of glide from 250 ft AGL. That is enough to reach the wooded wetland and pasture off Runway 05. Do not waste time trying to restart the engine or troubleshoot — establish best glide first, then manage the descent.

Fuel exhaustion is preventable — verify fuel quantity by sight-gauge AND dip-stick before every flight.

Three of the four DA20 accidents cited (WPR23LA324, GAA19CA569, ERA19LA074) involved fuel-related issues: improper fuel management, fuel exhaustion, and debris in the fuel system. The common thread is inadequate preflight fuel verification. The DA20 has a single fuel tank with an ON/OFF selector. Fuel quantity must be verified by sight-gauge (the clear fuel sight tube on the fuselage) AND dip-stick (a physical measurement of the fuel level in the tank). Visual inspection alone is not enough — you must physically measure the fuel depth. Cumulative flight time across multiple legs must be tracked against fuel burn rate. A four-flight day without proper fuel planning is a recipe for exhaustion on the final leg.

In a steep turn at low altitude, the stall speed rises significantly — maintain a shallow bank.

In level flight, the DA20's stall speed is 36 KIAS (landing flap). In a 20° bank, the stall speed is roughly 38 KIAS. In a 30° bank, the stall speed is roughly 42 KIAS. In a 45° bank, the stall speed is roughly 51 KIAS. At 250 ft AGL with an engine failure, a 30° bank is a steep turn — and the stall speed has risen by 6 KIAS. If you are at 60 KIAS, the margin is only 18 KIAS. If you are at 55 KIAS, the margin is only 13 KIAS. A turn that would be safe at 5,000 ft AGL becomes unrecoverable at 250 ft AGL. Keep the bank shallow — 10° or less — if you must turn.

Leveling the wings is the only way to avoid a stall in a steep turn — even at low altitude.

If you find yourself in a steep turn at low altitude with airspeed dropping toward stall, the only recovery is to level the wings immediately. This drops the stall speed back to 36 KIAS and restores the margin. Yes, you will lose the runway. Yes, you will have to land forward. But the airplane will not stall and spin. A hard landing in the pasture is survivable. A stall and spin at 100 ft AGL is not. The instinct to pull back on the yoke to 'gain altitude' is fatal — it will cause the stall. Push forward on the yoke if needed to maintain airspeed, level the wings, and accept the forward landing.

In a forced landing, full landing flaps minimize impact energy.

The DA20's landing flap is 78°, and the max flap extended speed is 100 KIAS. In a forced landing, adding full landing flaps slows the airplane to roughly 55 KIAS (Vref, approach speed) and reduces the touchdown speed by roughly 18 KIAS compared to a flaps-up landing (73 KIAS). Impact energy rises with the square of speed, so the reduction in touchdown speed is significant. Yes, you lose some glide distance — but the slowest possible touchdown speed is the priority. Add full landing flaps as soon as the landing surface is made and you are committed to the approach.

Built from the real accident record

Scenario built from NTSB WPR23LA324 (2023 DA20 engine failure / improper fuel management), ERA21LA250 (2021 DA20 oil starvation / forced landing), GAA19CA569 (2019 DA20 fuel exhaustion / forced landing), ERA19LA074 (2018 DA20 partial power loss / forced landing), and regional precedents WPR17FA152, LAX93LA048, ERA14FA123, SEA90LA162 (all fatal stall/spin on attempted turnback after engine failure at low altitude). Localized to KVDF.

NTSB reports: WPR23LA324 · ERA21LA250 · GAA19CA569 · ERA19LA074 · 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

Run this scenario yourself

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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