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=====Fiat G. 50 "Freccia" ("Arrow")=====

The Fiat G. 50 was one of the game's most difficult aircraft to modify to correct specifications. The CoD engine has designated that it shares the engine of the BR-20M, while in fact they were equipped with different types, the G. 50 had the Fiat A-74/38 and the B.R. 20M had the A-80. One was a 14 cylinder Radial, the other was an 18 cylinder. Both had different boost levels and maximum rpms.

The new modified version of the G-50's A74/38 engine has been modified to reflect its correct historical boost and rpm limits.

The Lift Profile of the G. 50 has also been modified to reflect its wing-loading and aerofoil design.

====ENGINE====

Fiat A-74/38 Radial with Single Stage Supercharger Full Throttle Height of 4100 meters (unrammed)

^  Rating  ^  RPM  ^  Pressure  ^  Height  |
^ 3 minute power setting | 2520  |  890 mmHG (WEP)  |  0 - 3000 m  |
^ 3 minute power setting |  2520  |  790 mmHG  | above 3000 m  |
^ 30 minute Climb setting |  2400  |  700 mmHG  |
^ Unlimited Cruise setting |  2100  |  590 mmHG  |

====PROPELLOR====

Aircraft has a Fiat/Hamilton constant speed propellor, maximum rpms at 2520. 

====ENGINE TEMPERATURE MANAGEMENT====

The aircraft has an air-cooled Radial engine. Air Louvre shutters are opened or closed by the pilot to regulate the temperature of the engine cylinder heads. The cylinder heads can be monitored by a single gauge on the dash, a selector switch on the right of the dash determines which pair of cylinders has its temperature displayed on the gauge.

===Cylinder Head recommended temperatures:===

^ Minimum:  |  140°C  | 
^ Normal: |  200-240°C  |
^ Overheat: |  260°C  |

The engine also has an Oil Radiator. A gauge on the dash displays oil temperature.

===Oil Radiator recommended temperatures:===

^ Minimum: |  50-60°C  |
^ Normal: |  70-90°C  |
^ Overheat: |  95-100°C  |

====STARTING THE ENGINE====

  -   Magneto to "1+2" position
  -   Throttle 10% open
  -   Engine Air cooling Louvres closed
  -   Oil Radiator closed
  -   Activate hand pump
  -   Start
 
====ENGINE WARMUP====

Engine must be warmed prior to takeoff.  Leave Air Louvres and Oil radiator closed till following:

  - Using Cylinder Head Selector switch, monitor Cylinder Head Temperature gauge, temperatures must be 140c prior to takeoff
  - Oil Temperature must be 40c prior to takeoff.

====TAKEOFF====

  -   Open Cylinder Head Air Louvres to 100%
  -   Open Oil Radiator to 50%
  -   Lower Flaps to 1st position
  -   Select Full Fine Pitch (2520 rpm)
  -   Activate WEP power, 890mmHG emergency boost
After aircraft is airborne:
  -   Raise undercarriage
  -   Raise Flaps
  -   Reduce power to 700mmHG
  -   Reduce rpms to 2400

====TRIM====

The aircraft has full trim for all controls, elevator, ailerons and rudder.

====PERFORMANCE====

Max. Speed at Sea Level: 415kph

Aircraft has a single stage supercharger, with the Full throttle height being approx. 4000 meters. Performance falls off rapidly above this height. Most historical G-50 Squadriglia did not operate much over 4000 meters.
The G-50 is capable of quite good level turn performance, and a good G-50 pilot can surprise an unwary Spitfire or Hurricane with its manoeuvrability. But it is a relatively slow aircraft compared to other fighters.

====CONTINUOUS CLIMB====
  -   Open Air Louvre full
  -   Open Oil Radiator to 75%
  -   Select 700mmHG boost
  -   Select 2400rpm

====CARBURETOR MIXTURE====

The engine is equipped with a carburetor which requires mixture settings to be adjusted according to altitude.

//**Recommended Mixture Settings**//

  * 0-2000m:  100% mix
  * 2000-4000m:  95% mix
  * 4000-6000m:  90% mix
  * 6000-8000m:  85% mix

====DIVING====

Maximum Dive Speed:  720kph IAS

When diving, pilots should partially close their Air Louvres and Oil Radiator to prevent the Cylinder Heads and oil from cooling too much otherwise misfiring and rough running may result.

====LANDING====
  -   Set rpms to 2520
  -   Slow aircraft to 230 kph 
  -   Select Full down Flaps 
  -   Select Undercarriage down
  -   Trim aircraft for level
  -   Approach speed at 175 kph, reduce to 165 kph over threshold, maintaining throttle. Do not reduce speed below 155kph, fly the aircraft onto the runway.
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