### Introduction Up until now, all of our takeoffs and landings have been on a paved surface with more than enough space available. We call these "normal" takeoffs and landings. But it is also possible to land your plane on a soft (unpaved) runway, such as a grass strip, or a short (space-constrained) runway. These takeoffs and landings require special technique, which you'll first learn to demonstrate on a normal runway, and later get to practice on runways where they're really necessary, such as the grass strip at Frazier Lake (1C9), or the 1,875' runway at Lodi Airpark (L53). **Pre-Lesson Reading/Homework:** [[~ PPL Pre-Lesson Reading]] **Builds On:** [[PPL1.4 Normal and Crosswind Takeoffs and Climbs]], [[PPL3.2 Normal and Crosswind Approaches and Landings]] **Schedule:** Ground 1.0 hr Flight – multiple flights, with frequent practice ### Lesson Elements Overview of short- and soft-field operations - When would we use these? - What if a field is both short and soft? #### Short-Field ##### Short-Field Takeoff 1. Set flaps according to POH/AFM 2. Position flight controls for existing wind conditions 3. Taxi into takeoff position using maximum available runway length, and align on runway centerline 4. Apply brakes and hold while applying takeoff power, check gauges 5. Release brakes, accelerate with POH recommended pitch technique, rotate at recommended [[IAS]], and accelerate to and climb at [[Vx]]^[This is not actually Vx, since it is a different airspeed when flaps are out. The correct airspeed to use is typically listed in the Performance Section of the [[POH]].] 6. Retract gear/flaps after positive rate of climb, clear of obstacles and >200', and in accordance with POH/AFM 7. Maintain [[Vx]] until obstacle is cleared (or 50' AGL), then accelerate to [[Vy]] > [!maneuver]- 3D Visualizer: Short-Field Takeoff > <iframe src="https://maneuvers.cfijack.com/?embed&m=short-field-takeoff" width="100%" height="520" style="border:0;border-radius:12px"></iframe> ##### Short-Field Landing 1. Complete pre-landing checklist ([[GUMPS]]) 2. Identify touchdown target (200' zone for Private Pilot; 100' zone for Commercial Pilot) 3. Establish [[POH]]-recommended approach configuration and airspeed, adjust pitch and power as required 4. Maintain stabilized approach and recommended airspeed (not more than 1.3Vso), applying [[gust factor]] (add half of gust difference) 5. Aim for a point 200-300 feet short of target ([[Stabilized Approach.jpeg]]) 6. If you're not stabilized, **go around** 7. Touch down smoothly at or beyond target, with minimal float, at or within 200 feet (PPL) or 100' (CPL) beyond the specified touchdown point 8. Raise flaps, apply brakes and elevator back-pressure as necessary to stop in the shortest distance consistent with safety, using proper control deflections for existing wind conditions > [!maneuver]- 3D Visualizer: Short-Field Landing > <iframe src="https://maneuvers.cfijack.com/?embed&m=short-field-landing" width="100%" height="520" style="border:0;border-radius:12px"></iframe> #### Soft-Field 1. [[Ground Effect]], [[Wingtip Vortex]], and [[Induced Drag]] 1. What actually is happening aerodynamically in ground effect? ##### Soft-Field Takeoff 1. Set flaps according to POH/AFM 2. Position flight controls for existing wind conditions 3. Elevator aft for light nose wheel 4. Taxi into takeoff position without stopping, with smooth power application for takeoff 5. Establish pitch attitude to rapidly transfer weight from wheels to wings 6. Lift off at lowest possible airspeed, accelerate to [[Vx]] or [[Vy]] in [[Ground Effect]] 1. > [!question] What if you try to climb too early? 7. Establish pitch attitude and airspeed for [[Vx]] or [[Vy]] climb 8. Retract gear/flaps after positive rate of climb, clear of obstacles and >200', and in accordance with POH/AFM > [!maneuver]- 3D Visualizer: Soft-Field Takeoff > <iframe src="https://maneuvers.cfijack.com/?embed&m=soft-field-takeoff" width="100%" height="520" style="border:0;border-radius:12px"></iframe> ##### Soft-Field Landing 1. Complete pre-landing checklist ([[GUMPS]]) 2. Establish POH-recommended approach and landing configuration (flaps) and airspeed 3. Maintain stabilized approach and recommended airspeed (not more than 1.3Vso), applying [[Gust Factor]] (add half of gust difference) +10/-5 knots 4. Make smooth roundout and flare, with minimum sink rate. Use power as necessary to cushion descent and touchdown. ([[Stabilized Approach.jpeg]]) 5. Maintain full up elevator during rollout, and exit the runway without stopping and safe taxi speed, using proper control deflections for existing wind conditions. Brakes may not be required. Power may be used to keep from bogging down, and to keep the nose wheel unweighted. > [!maneuver]- 3D Visualizer: Soft-Field Landing > <iframe src="https://maneuvers.cfijack.com/?embed&m=soft-field-landing" width="100%" height="520" style="border:0;border-radius:12px"></iframe> > [!question] What's correct and what's incorrect about this? > > [!youtube] [Tom Cruise, in American Made](https://www.youtube.com/watch?v=xXz7UyPTytE) > > ![](https://www.youtube.com/watch?v=xXz7UyPTytE) ### Completion Standards Client should demonstrate ability to perform short- and soft-field takeoffs and landings to ACS standards. > [!success]- Tolerances (Partial) from [[Private Pilot ACS|ACS]] > - **Short Field Takeoff**: Hold brakes, add full power; Check gauges, release brakes; Rotate per POH; Climb at V<sub>X</sub> +10/-5kt until at least 50' AGL. > - **Short Field Landing**: Land w/in 200' of specified point; parallel, centerline, nose up, no drift > - **Soft Field Takeoff**: Taxi w/ minimal braking and no stops; Liftoff early; Accelerate in ground effect; At V<sub>X</sub> or V<sub>Y</sub> start climb > - **Soft Field Landing**: Minimum sink, parallel, centerline, nose up, no drift; elevator back through exit ### Resources - [[Private Pilot ACS]] Sections IV.E&F (Short Field) and IV.C&D (Soft Field) - [[Commercial ACS]] Sections IV.E&F (Short Field) and IV.C&D (Soft Field) ### Required Homework - [ ] Complete solo quiz ### Recommended Homework - [ ] Chair fly short- and soft-field takeoffs and landings *Return to [[~ PPL Lesson Plan Outline|Table of Contents]]^*