hurricane_i_dh5-20
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Differences
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hurricane_i_dh5-20 [2013/03/20 14:16] RAF74_Buzzsaw [ENGINE TEMPERATURE MANAGEMENT] |
hurricane_i_dh5-20 [2017/12/20 22:43] (current) RAF74_Buzzsaw |
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| ======HURRICANE I DH5-20====== | ======HURRICANE I DH5-20====== | ||
| - | The Hurricane I has had its engine performance and Lift profile modified to better reflect the historical aircraft's performance. | + | The Hurricane I with De-Havilland 5-20 Propellor is an early model with a two pitch propellor with only two settings, either fully fine or fully coarse. |
| ====ENGINE==== | ====ENGINE==== | ||
| - | Merlin II inline liquid cooled engine with Single Stage Supercharger, Full Throttle Height of 15,000 ft at +6 boost (unrammed) | + | Merlin II inline liquid cooled engine with Single Stage Supercharger, Full Throttle Height of 15,500 ft at +6.25 boost (unrammed horsepower figure) |
| - | Pilots should note this is an earlier generation Merlin engine, and is slightly less reliable than more current types. Care should be exercised in the use and careful attention to rpms and temperatures. | + | Pilots should note this is an earlier generation Merlin engine, and is slightly less reliable than the later generation Merlin III type. Care should be exercised in the use and careful attention to rpms and temperatures. |
| ===5 minute Power Setting=== | ===5 minute Power Setting=== | ||
| - | * +6 boost in Level High Speed Flight with rpms at or close to 3000 rpm | + | * +6.25 boost in Level High Speed Flight with rpms at or close to 3000 rpm |
| - | * +6 boost in Climb or Combat Maneuver with rpms at close to 2850 rpm | + | * +6.25 boost in Climb or Combat Maneuver with rpms at close to 2850 rpm |
| ===30 minute Climb Setting=== | ===30 minute Climb Setting=== | ||
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| ===Unlimited Cruise Power Setting=== | ===Unlimited Cruise Power Setting=== | ||
| - | * Coarse Pitch at +3 boost or lower | + | * Coarse Pitch at +4 boost or lower |
| ====PROPELLOR==== | ====PROPELLOR==== | ||
| - | Aircraft has a De-Havilland Two Speed Propellor, maximum rpms are not restricted by the propellor governor. Pilots will need to watch their engine rpms to avoid over-revving their engine or Propellor governor. Pilots should use their throttle to keep rpms to a maximum of 3000 rpm. A "Do not Exceed" limit of 3200 rpm is in effect for dives. Exceeding this engine speed will very likely result in the destruction of the engine. | + | Aircraft has a De-Havilland Two Speed Propellor, maximum rpms are not restricted by the propellor governor. Pilots will need to watch their engine rpms, especially in Fine pitch, (100% setting) to avoid over-revving their engine or damaging the Propellor governor. Pilots should use their throttle to keep rpms to a maximum of 3000 rpm. A "Do not Exceed" limit of 3600 rpm is in effect for dives. Exceeding this engine speed will very likely result in the destruction of the engine. |
| - | The two settings available are either 'Fine Pitch' or 'Coarse Pitch'. | + | The two propellor settings available are either 'Fine Pitch', 100% in the game, or 'Coarse Pitch', which is 0% in the game. |
| - | Pilots will notice that in both Coarse and Fine Pitch rpms rise as altitude is gained, this is a natural result of how these aircraft's propeller settings were tuned. Maximum rpms in Coarse Pitch were designed to arrive at approximately Full Throttle Height, (+6 boost) to allow maximum speeds at those altitudes to be attained. For this reason, rpms and performance at lower levels are less than desirable. This is one of the compromises of a simple two pitch propeller system. | + | Pilots will notice that in both Coarse and Fine Pitch rpms rise as altitude is gained, this is a natural result of how these aircraft's propeller settings were tuned. Maximum rpms in Coarse Pitch were designed to arrive at approximately Full Throttle Height, (+6.25 boost at 15,500 ft) to allow maximum speeds at those altitudes to be attained. For this reason, rpms and performance at lower levels are less than desirable. This is one of the compromises of a simple two pitch propeller system. |
| ====FINE PITCH==== | ====FINE PITCH==== | ||
| - | Fine pitch is only intended for use in takeoff and landing, and below 2,000ft, and only in climbs and slow speed maneuver at or below that altitude. Any attempt to use Fine Pitch at higher altitudes or in dives or in higher speed situations will result in excessive engine and governor rpms and the destruction of the Pilot's engine. | + | Fine pitch is only intended for use in takeoff and landing, and below 2,000ft, and only in climbs and slow speed maneuver at or below that altitude. Any attempt to use Fine Pitch at higher altitudes or in dives or in higher speed situations will result in excessive engine and governor rpms and the destruction of the engine. |
| ====COARSE PITCH==== | ====COARSE PITCH==== | ||
| - | Coarse pitch is intended to be used for most situations, including Climb, Dive, Level Flight and Combat Maneuver. Pilots will need to watch their rpms, although the potential for over-revving the engine or prop governor is not as high as the rpms are more controllable. | + | Coarse pitch is intended to be used for most situations, including Climb, Dive, Level Flight and Combat Maneuver. Pilots will still need to watch their rpms, although the potential for over-revving the engine or prop governor is not as high as the rpms are more controllable. |
| ===PITCH CHANGE RATE AND USING THE PITCH CONTROL LEVER TO SIMULATE A VARIABLE PITCH SYSTEM=== | ===PITCH CHANGE RATE AND USING THE PITCH CONTROL LEVER TO SIMULATE A VARIABLE PITCH SYSTEM=== | ||
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| ====ENGINE TEMPERATURE MANAGEMENT==== | ====ENGINE TEMPERATURE MANAGEMENT==== | ||
| - | The aircraft has a liquid cooled, (100% Glycol) engine. Shutters can be opened and closed by the pilot to regulate the Radiator coolant temperature. In addition the aircraft has an automatic Oil Cooler, which is not controlled by the pilot. Gauges for both Radiator and Oil Cooler temperatures are displayed on the right side of cockpit dashboard. | + | The aircraft has a liquid cooled, (All Glycol) engine. Shutters can be opened and closed by the pilot to regulate the Radiator coolant temperature. In addition the aircraft has an automatic Oil Cooler, which is not controlled by the pilot. Gauges for both Radiator and Oil Cooler temperatures are displayed on the right side of cockpit dashboard. |
| ===Glycol Recommended Temperatures:=== | ===Glycol Recommended Temperatures:=== | ||
| ^ Minimum: | 60°C | | ^ Minimum: | 60°C | | ||
| - | ^ Normal: | 105-115°C | | + | ^ Normal: | 100-110°C | |
| - | ^ Maximum: | 116-120°C | | + | ^ Maximum: | 120°C | |
| ===Oil Recommended Temperatures:=== | ===Oil Recommended Temperatures:=== | ||