Commercial Multi 5GB

Approach speed when downwind?

100 Knots

Approach speed when abeam?

90 Knots

Approach speed with base?

80 Knots

Approach speed on final?

75 Knots

Full VMC definition

Is the calibrated airspeed at which, when the critical engine is suddenly made inoperative, it is possible to maintain control of the airplane with that critical engine, and thereafter maintain straight flight at the same speed with an angle of bank of not more than 5 degrees.

Acronym for why left engine is critical engine?

PAST

P(PAST)

P-factor(Yaw): the centerline of thrust is farther from the centerline of the airplane with left engine failure, causing a greater turning force because of the longer arm.

A(PAST)

Accelerated Slipstream(roll): When thrust is generated, backwards airflow is also generated. When the left engine fails, only the right engine is producing the slipstream, causing an asymmetrical situation and reduced rudder effectiveness.

S(PAST)

Spiraling Slipstream(Yaw): Slipstream from engine moves from high to low pressure and hits the rudder, and when left engine is failed, rudder becomes less effective because no air is hitting it, therefore not being able to counteract asymmetric thrust as much.

T(PAST)

Torque(roll): Considering how props rotate, every action has an equal and opposite reaction, so, when the left engine fails torque contributes to asymetrical thrust

What regulation lists certification requirments for VMC

FAR 25.149

VMC Acronym?

SMACFUM

SMACFUM (S) Standard Day effect on VMC and performance?

VMC(↑) Performance(↑)

SMACFUM (M) Most unfavorable weight effect on VMC and performance?

Light: VMC(↑) Performance(↑)

SMACFUM (A) Aft CG effect on VMC and performance?

VMC(↑) Performance(↑)

SMACFUM (C) Critical engine windmilling effect on VMC and performance?

VMC(↑) Performance(↓)

SMACFUM (F) Flaps up, gear up effect on VMC and performance?

VMC(↑) Performance(↑)

SMACFUM (U) Up to 5 degrees of bank (0 degrees) effect on VMC and performance?

VMC(↑) Performance(↓)

Up to 5 degrees of bank (2-3 degrees) effect on VMC and performance?

VMC(↓) Performance(↑)

Up to 5 degrees of bank (5 degrees) effect on VMC and performance?

VMC(↓) Performance(↓)

SMACFUM (M) Max power effect on VMC and performance?

VMC(↑) Performance(↑)

Is an increase in VMC good or bad?

Bad

Is a decrease in VMC speed good or bad?

Good

VMC requirements for aircraft?

1. VMC not over 1.2x VS1

2. 20 Degree heading loss

3. 150lb of rudder

4. 5 degrees of bank

Does VMC increase or decrease with an increase in altitude

VMC decreases

What is critical density altitude?

At a certain speed, the aircraft wants to yaw and stall, and at this altitude VMC is equal to stall speed

Max crosswind for the PA44?

17 Knots

FAR regulation for supplemental oxygen?

91.211

Oxygen regulation above FL250 in a pressurized cabin?

10 minute supply of oxygen for each occupant

Oxygen regulation above FL350?

At least one pilot on the controls must wear an oxygen mask unless there are two pilots and each has a quick-donning mask.

Oxygen regulation above FL410?

At least one pilot must have an oxygen mask on when the other leaves the cockpit, and both pilots don’t need to always wear one if there is a quick-donning mask for each pilot.

Describe the process of a pressurized cabin?

Air comes through air intakes, turbocharger takes air in an pressurizes it and heats it, air goes through cooler to get cooled and then flows into cabin liike a balloon, outflow valve allows for a release of the pressure and measures it, the dump valve is a saftey mechanism and is connected to the landing gear.

Four componenets of the pressurization system?

Turbocharger, cooler, dump valve, outflow valve

Acronym for why left engine is critical engine?

PAST

VSSE and Speed?

Safe single engine speed, 82 knots

How many gallons are usuable of fuel and unusable?

108 gallons usuable and 2 gallons unusable

At what altitude should you actually feather engine?

Above 4k feet

What are max flaps for single engine?

25 degres

What is the last thing you should take out if overweight?

Fuel

Before landing acronym?

GUMPS

G(GUMPS)

Gas(Fuel pumps and selectors)

U(GUMPS)

Undercarriage(3 green and mirror)

M(GUMPS)

Mixture

P(GUMPS)

Props

S(GUMPS)

Switches(lights and seatbelts)