Piper Seminole Aircraft Systems

The Piper Seminole is equipped with two alternators, one on each engine. Alternators are essential components of an aircraft's electrical system as they generate electricity to power various systems and charge the aircraft's battery. Having two alternators ensures redundancy and reliability in case one fails, allowing for continued operation of electrical systems during flight.

The correct answer is Left wing because the pitot tube and static port are typically located on the left wing of an aircraft. The pitot tube measures the dynamic pressure of the airflow, while the static port measures the static pressure. By combining these two measurements, the airspeed and altitude of the aircraft can be accurately determined. Placing them on the left wing helps to minimize any interference from the aircraft's structure and ensure accurate readings.

The propeller on the Piper Turbo Seminole engines is driven through a direct drive system. This means that the propeller is directly connected to the engine crankshaft, without the use of any intermediate components such as a reduction gearbox. This type of drive system is simple and efficient, as it allows for a direct transfer of power from the engine to the propeller.

The propeller of each engine has 2 blades.

The landing gear is held up by hydraulic pressure. Hydraulic pressure is used to activate the hydraulic cylinders that extend and retract the landing gear. This pressure is created by hydraulic pumps and is controlled by the pilot through the use of hydraulic valves. The hydraulic system provides the necessary force to lift and support the weight of the aircraft during landing and takeoff.

The correct answer is "Main landing gear." This means that the Seminole aircraft has brakes only on its main landing gear. It does not have brakes on its nose landing gear.

The Seminole is equipped with a manual flap system. This means that the pilot has to physically manipulate the flaps using a manual lever or control in the cockpit. This type of flap system does not rely on any external power sources such as electricity, hydraulics, or pneumatics. Instead, the pilot has direct control over the flaps, allowing for precise adjustments during flight.

The correct answer is Constant Speed. The propeller governor is responsible for maintaining a constant speed of the propeller by constantly adjusting the oil pressure into the propeller hub, which in turn changes the pitch of the propeller blades. This allows the propeller to maintain a consistent rotational speed, regardless of changes in engine power or aircraft speed.

If hydraulic pressure is lost, the landing gear will free fall down. This is because hydraulic pressure is necessary to control the movement of the landing gear. Without the pressure, there is no force to keep the landing gear in the up position, causing it to fall down under gravity.

The seminole is equipped with a Lycoming (L)TO-360 engine.

The correct answer is 108 gals (54 per side) because the Piper Seminole has a total usable fuel capacity of 108 gallons, with 54 gallons of fuel available on each side.

Full feathering refers to the ability of the propeller blades to rotate parallel to the airflow, reducing drag. This feature is commonly used in aircraft to optimize performance during engine shutdown or in emergency situations. By feathering the propeller blades, the aircraft's drag is minimized, allowing for better glide performance and increased safety.

The squat switch on the left main landing gear prevents gear retraction on the ground. This switch is designed to detect when the aircraft is on the ground and the weight of the aircraft is resting on the landing gear. When the switch senses this weight, it sends a signal to the aircraft's systems to prevent the gear from retracting. This safety feature ensures that the landing gear remains extended while the aircraft is on the ground, providing stability and support during taxiing, takeoff, and landing.

The Piper Seminole has multiple wing flap positions, including 0, 10, 25, and 40 degrees. These positions allow the pilot to adjust the lift and drag characteristics of the aircraft during different phases of flight. The 0-degree position is likely used for takeoff and landing when maximum lift is required. The 10-degree position may be used for climb or cruise when a moderate amount of lift is needed. The 25-degree position may be used for approach and landing to provide additional lift and drag. The 40-degree position is likely used for short field landings or steep descents when maximum lift and drag are required.

The inboard stall warning detector provides stall warning at flaps 25 & 40. This means that when the aircraft is configured with flaps set at either 25 or 40, the inboard stall warning detector will activate and provide a warning to the pilot if the aircraft is approaching a stall. The stall warning system is crucial for flight safety as it alerts the pilot of an impending stall, allowing them to take appropriate action to avoid it.

The landing gear on the Seminole is hydraulically actuated, which means that it is controlled by hydraulic power. This allows for smooth and efficient operation of the landing gear. Additionally, the landing gear is also electrically operated, meaning that it can be controlled and operated using electrical power. This combination of hydraulic and electrical operation ensures reliable and effective functioning of the landing gear system on the Seminole aircraft.

During training flights at TecBlue, parking brake is not permitted to be used.

The squat switch on the Piper Seminole has two functions when the aircraft is on the ground. One function is to remove power from the hydraulic pump, which helps to prevent unnecessary wear and tear on the pump. The other function is to deactivate the stall warning, as the aircraft is not expected to stall while on the ground.

The correct answer is 100 KIAS. KIAS stands for Knots Indicated Airspeed, which is the speed at which the aircraft is moving through the air as indicated on the airspeed indicator. The emergency landing gear extension is limited to this speed to ensure the safety and effectiveness of the landing gear deployment. Going above this speed may cause damage to the landing gear or compromise the aircraft's stability during landing.

The electrical system on the Piper Seminole is 14 Volt. This voltage level is commonly used in small aircraft like the Piper Seminole. It is sufficient to power the various electrical components and systems on board the aircraft, including the avionics, lights, and communication systems. The 14 Volt electrical system ensures reliable and efficient operation of these systems during flight.

When oil pressure is lost, the propeller will not feather regardless of the propeller lever position. However, if the RPM (Revolution Per Minute) is above 950, the propeller will feather. This means that the blades of the propeller will rotate into a position parallel to the airflow to reduce drag. If the RPM is below 950, the propeller will not feather, indicating that the propeller blades will remain in their current position.

Controllable pitch refers to the capability of a propeller to change the blade angle. This means that the pitch of the propeller blades can be adjusted in order to optimize the performance of the aircraft. By changing the blade angle, the pilot can control the amount of thrust generated by the propeller, allowing for better efficiency and performance in different flight conditions. This feature is particularly useful in aircraft with variable speed engines, as it allows for fine-tuning of the propeller's performance to match the engine's power output.

The landing gear horn will sound when power is approximately below 15" with the landing gear up because this indicates that the aircraft is in a low-power configuration, which could be a potential hazard if the gear is not down. The horn also sounds when flaps 25 or 40 are selected and the landing gear is not down, as this indicates that the aircraft is configured for landing but the gear is still retracted. Additionally, the horn sounds when the landing gear handle is selected up on the ground, which is a safety reminder to ensure that the gear is down before takeoff.

The Piper Turbo Seminole engines are not susceptible to induction icing because they are equipped with a turbocharger. The turbocharger compresses the air before it enters the engine, which raises the temperature and prevents the formation of ice. This feature makes the Piper Turbo Seminole engines less prone to induction icing compared to engines without a turbocharger.

The rated power of the Piper Turbo Seminole engines is 180 horsepower at 2575 RPM. This means that the engines are designed to produce a maximum power output of 180 horsepower when running at a speed of 2575 RPM.