Piper arrow

systems packet MGA

Describe the gear system

Hydraulic reservoir → shuttle valve → hydraulic chambers → pressure switch (next to it) → squat switch (prevents gear from retracting on the ground

what does EDHARP mean? (gear system)

Electrically

Driven

Hydraulically Actuated

Reversible

Pump

When does the warning horn go off?

Goes off when gear is up below 14” of manifold pressure, with more than 10 degrees of flaps in or on the ground

What do the green indicator lights mean? What do the red mean?

Green: light for each that indicates gear is down and locked

Red: Light for transit/ unsafe

describe the prop system

oil reservoir → fly weights→ pilot wave → speeder spring → prop condition lever → hub → McCauley 2 blade metal constant speed propeller

what happens when the prop is full forward?

oil out of hub

low blade pitch

high blade RPM

(takeoff, landing)

what happens when the prop is backward?

oil into hub

high blade pitch

low blade RPM

(cruise)

what type of fuel does the arrow use? what are the quantities?

100LL or 100

total: 77 gal (38.5 per tank)

Usable: 72 (36 per tank)

Tabs: 50 gal (25 per tank)

describe the fuel flow

fuel distributor and fuel nozzle (inject directly into cylinders)

servo regulator and fuel flow gage

engine driven fuel pump

electric/ auxiliary fuel pump

filter + drain

firewall

vent/drain → left tank → fuel selector valve- right tank → vent/ drain

quantity gauges

describe the electrical system

master relay switch→ battery (12 volt 35 amp)→ alternator (14 volt 60 amp)→ voltage regulator + over voltage relay (maintains 14v; shuts down if circuit reaches 16.5v)→ bus bar- circuit breakers→ main bus/ avionics/ non-essential bus

what does the attitude/ heading reference system tell us

attitude indicator

heading indicator

turn coordinator