Use the Black Square tablet or the simulator payload interface to configure the flight, then confirm the displayed loading remains within the simulated aircraft envelope.

1. Set the planned fuel quantity and passenger/cargo stations.
2. Check the displayed gross-weight indication for an exceedance warning.
3. Confirm the centre-of-gravity marker remains inside the shown limits.
4. Remove or configure exterior ground items as appropriate before departure.

Prepare the common twin-engine airframe, controls, fuel and electrical system before selecting the appropriate start branch.

1. Confirm the preflight is complete, control locks are stowed, occupants are secured and cabin doors are latched.
2. Set the parking brake; verify emergency gear handle stowed, gear down, flaps up, avionics off and primary engine controls in the normal pre-start positions.
3. Centre aileron/rudder trim, set alternate static to normal, verify required breakers in and test the CO detector.
4. Select both fuel systems ON, open cowl flaps, switch the beacon on and energise the battery.
5. Verify adequate bus voltage, test annunciators, switch both alternators on and check fuel quantity.
6. Momentarily exercise each low boost-pump setting and confirm an audible response before returning the pumps off.

Complete the checklist items marked for the pressurised model before engine start.

1. Push the cabin-pressurisation shutoff controls to their normal position.
2. Keep standby door-seal air off and set the pressurisation mode to dump with door-seal mode off.

Choose the cold, hot/vapour-lock or flooded branch that matches the simulated engine condition; complete the right engine first, then the left.

1. Cold branch: prime briefly with mixture rich and throttle fully open, then return the boost pump off and set a small throttle opening before engaging the starter.
2. Hot/vapour-lock branch: circulate cool fuel with mixture at cut-off before priming normally; repeat the clearing cycle only if necessary.
3. Flooded branch: begin with mixture leaned/cut off and a modest throttle opening, crank while increasing throttle until the engine catches, then stabilise at idle and restore mixture.
4. For each engine, stabilise near 1,000–1,200 RPM and confirm oil pressure and expected starter/alternator/low-voltage indications clear.
5. Verify bus voltage and keep alternator charging load within the developer checklist expectation before proceeding to the other engine.

Bring avionics, cabin systems and taxi configuration online after successful engine starts.

1. Set exterior/cockpit lights as required and leave weather radar off or in standby.
2. Switch avionics on and set cabin ventilation/heat/air conditioning as desired.
3. Lean mixture for ground operation to reduce plug fouling.
4. Release the parking brake when ready and verify braking response as taxi begins.

Exercise propellers, ignition, instrument-air and alternator systems at the developer run-up setting before departure.

1. Set the parking brake, verify annunciators, align the remote compass and return mixture to full-rich for the run-up.
2. Bring power to the run-up RPM, exercise each propeller and check the permitted RPM response.
3. Check each magneto side for an acceptable RPM drop and confirm instrument-air indications remain normal.
4. Switch each alternator off and back on in turn, confirming the expected annunciator and load response.

Briefly test the installed heat/deice systems and confirm their electrical or pressure indications respond before returning them off.

1. Test propeller heat and confirm its current draw/cycling response.
2. Test windshield, pitot, fuel-vent and stall-warning heat indications as fitted, then switch the heating tests off.
3. Exercise surface deice in manual and automatic modes and confirm boot-pressure response before returning deice off.

Prove the pressurisation controls, cabin indications and door seal before returning the system to ground configuration.

1. Close the cockpit window and raise power to the developer pressurisation-test setting.
2. Set field elevation and confirm cabin differential is near zero before the test.
3. Set the initial cabin-altitude goal and engage pressurisation/door-seal modes.
4. Hold the pressurisation test and confirm cabin altitude/differential/climb indications respond.
5. Set the initial assigned-altitude goal, then return pressurisation to dump and door seal off for taxi.

Complete trim, autopilot, flap and flight-control checks, then set the departure references.

1. Exercise electric trim and perform the heading-mode autopilot response test in both directions.
2. Disconnect the autopilot/flight director after the test and set elevator trim for takeoff.
3. Check flap travel and set the takeoff position; close windows and verify door annunciation is normal.
4. Confirm flight controls move freely and correctly.
5. Set altimeter, departure altitude and takeoff heading; adjust panel lighting for departure.

Before takeoff, place the cabin pressurisation and door-seal systems into their flight modes.

1. Set cabin pressurisation mode to pressurise.
2. Set the door-seal mode to pressurise.

Configure the common systems immediately before runway entry and power application.

1. Set mixture for maximum-power operation and verify oil temperature is suitable for takeoff.
2. Confirm boost pumps are off unless the developer procedure for the situation requires otherwise.
3. Switch air conditioning off, landing lights on, transponder to altitude-reporting mode and weather radar on as required.

The automatic wastegate removes most manual workload, but Black Square warns that cold oil can slow wastegate response near full throttle.

1. Keep mixture full rich for takeoff.
2. Advance throttles smoothly, especially through the final part of travel.
3. Monitor manifold pressure closely and avoid exceeding the turbocharged redline.

Use the selected variant power limits, monitor both engines, then retract gear/flaps as the aircraft accelerates.

1. Advance both throttles smoothly to the applicable takeoff setting and release the brakes.
2. Monitor engine instruments during the takeoff roll.
3. Retract landing gear after a confirmed positive climb.
4. Retract takeoff flaps after accelerating through the developer checklist speed.
5. Engage the autopilot only when desired after the initial climb is established.

Transition from maximum-continuous power into the enroute climb while monitoring temperatures and performance.

1. Keep mixture at the developer maximum-power setting for the initial climb.
2. Set propellers to the published climb RPM and use the applicable throttle/manifold-pressure setting for the selected variant.
3. Position cowl flaps as required for engine cooling.
4. Set cabin climate systems as desired without losing sight of engine indications.
5. Monitor both engines continuously during the climb.

Below critical altitude, the turbocharged Baron does not need continuous mixture reduction simply because altitude is increasing.

1. Leave throttles and mixture at the developer climb settings during the initial climb.
2. Do not lean merely to compensate for altitude while the turbocharger maintains the required manifold pressure.
3. When manifold pressure can no longer be maintained through critical altitude, begin manual mixture management as required.

Confirm the cabin system is following the climb after departure.

1. Observe cabin altitude, differential pressure and cabin climb indication after takeoff.
2. Continue monitoring cabin pressure during the enroute climb.

Close cooling drag where appropriate, set cruise power and manage mixture, fuel balance and ice systems for the simulated conditions.

1. Close cowl flaps when engine temperatures permit and switch landing lights off.
2. Use pitot, windshield, propeller and surface ice protection as conditions require.
3. Keep fuel imbalance within the developer checklist limit.
4. Lean each engine using the desired rich- or lean-of-peak technique and the EDM-760 as an aid.
5. Set propellers and throttle to the applicable cruise schedule for the variant.
6. Continue monitoring engine performance and cabin comfort systems.

Reduced throttle or operation above critical altitude can reduce turbocharger output enough to require manual mixture adjustment.

1. After any significant high-altitude power change, re-check manifold pressure and engine performance.
2. If turbocharger output no longer maintains the desired pressure, adjust mixture manually.
3. Use the EDM-760 as an aid for precise rich- or lean-of-peak mixture setting.

Include cabin altitude and differential pressure in normal cruise monitoring.

1. Periodically check cabin altitude, differential pressure and cabin rate while cruising.

Prepare the pressurisation controller for arrival before the cabin begins descending.

1. Set the cabin-altitude goal to the destination field elevation before or early in descent.

Reduce power progressively while protecting engine temperature and enriching mixture as required.

1. Keep cowl flaps closed unless cooling needs dictate otherwise.
2. Reduce throttle gradually for the descent.
3. Enrich mixture as power/altitude changes require.
4. Monitor engine performance and avoid excessive cylinder-head cooling.

Check that cabin altitude, differential pressure and cabin rate are moving toward the landing condition.

1. Review cabin altitude, differential pressure and cabin climb/descent indication during approach.

Secure occupants, verify fuel and weather/ice equipment, and establish the approach flap and engine configuration.

1. Confirm seats and seatbelts secure and both fuel selectors on.
2. Check fuel imbalance remains within the developer limit.
3. Switch landing lights on and apply pitot heat when the checklist temperature criterion is met.
4. Return windshield/propeller heat and air conditioning to the developer approach configuration as appropriate.
5. Position cowl flaps as required, set mixture for maximum-power availability and select approach flaps.

Confirm the pressure differential has fully decayed before touchdown/door operation.

1. Verify cabin differential pressure is at zero by the landing phase.

Establish the final propeller, mixture, flap and landing-gear configuration and disconnect the autopilot before touchdown.

1. Set propellers to high RPM and mixture for maximum-power availability.
2. Select landing flaps as required for the approach.
3. Confirm landing gear down and locked.
4. Disconnect the autopilot before landing.

After clearing the runway, verify cabin pressure is neutral before dumping the system and releasing the door seal.

1. Verify cabin altitude/differential/rate indications have returned to the ground condition.
2. Set cabin pressurisation mode to dump and switch door-seal mode off.

Reduce drag and electrical loads after clearing the runway and configure the aircraft for taxi-in.

1. Open cowl flaps and retract the flaps.
2. Return weather radar to off/standby and adjust lights as required.
3. Switch ice-protection systems off.
4. Restore air conditioning and cabin heat/ventilation as desired.

After taxi-in, give both turbochargers time at idle before stopping the engines.

1. Stabilise both engines at turbine idle after leaving the runway.
2. Allow a short cooling period before beginning the normal shutdown sequence, with extra care after cold-ambient operation.

Use the developer securing sequence after parking and any variant-specific cooldown requirement.

1. Set the parking brake and switch avionics off.
2. Switch subpanel equipment off, close throttles and keep propeller controls at high RPM for shutdown.
3. Move mixtures to cut-off and wait for both engines to stop.
4. Switch magnetos, alternators and battery master off.
5. Release the parking brake when appropriate and install the control locks.