Robinson R22 — michael_smith_r22_eng_start_shutdown

BEFORE STARTING ENGINE Seat belts Fastened Fuel shut-off valve On Cyclic/collective friction Off Cyclic, collective, pedals Full travel free Throttle Full travel free Collective Full down, friction on Cyclic neutral Friction on Pedals Neutral Governor Off Circuit breakers In Carb heat Off Mixture Full rich Mixture guard Installed All switches/avionics Off Clutch Disengaged Altimeter Set Rotor brake Disengaged Map light Off

STARTING ENGINE & RUNUP (headset-off one ear) Master switch On Throttle twists for priming As required Throttle Closed Area Clear Strobe light On CAUTION – Be sure rotor blades are approximately level to avoid possible tailcone strike. Ignition switch Start, then both Started-On light Out Set idle speed 55% Clutch switch Engaged (no delay) Alternator switch On (no delay) Blades turning Less than 5 seconds Oil pressure in 30 sec. 25 psi minimum Avionics, headsets On Wait for clutch light Out Warm-up RPM 70 – 75% Engine gages Green Warning lights Out Mag drop @ 75% RPM 7% max in 2 sec. Carb heat check CAT rise/drop Sprag clutch check from 75% RPM Needles split Doors Closed & latched Limit MAP chart Check Cyclic/collective friction Off Governor on RPM 102-104% Lift collective slightly, reduce RPM Horn/light at 97% rotor RPM CAUTION – Avoid continuous operation at rotor speed of 60-70% to minimize tail resonance. CAUTION – On slippery surfaces, be prepared to counter nose right rotation with left pedal as governor increases RPM. NOTE – During run-up & shutdown, pilot should uncover right ear, open right door, and listen for unusual bearing noise. Failing bearing swill produce an audible whine or growl well before final failure.

SHUTDOWN PROCEDURE Collective down Friction on Cyclic/pedals neutral Friction on Governor Off Idle at 70-80% CHT drop (~4 minutes) Throttle Closed Clutch switch Disengaged Wait 30 sec Pull idle cut-off Mixture guard Back on mixture Wait 30 sec Apply rotor brake Clutch light off All switches off (battery last) CAUTION – Do not slow rotor by raising collective during shutdown. Blades may flap and strike tailcone. Notes:

MAXIMUM CONTINUOUS POWER Press Alt-Ft OAT - C° -20 -10 0 10 20 30 40 SL 21.5 21.8 22.1 22.3 22.6 22.9 23.2 2000 21.1 21.4 21.6 21.9 22.2 22.5 22.8 4000 20.7 21.0 21.2 21.5 21.8 22.0 22.3 6000 20.3 20.6 20.8 21.1 21.3 21.6 21.9 8000 19.9 20.2 20.4 20.7 20.9 FULL THROTTLE FOR MAX TAKEOFF POWER (5 MIN), ADD 0.9 IN. HG