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Manual Engine Control / MEC - Guide:
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Air RB Performance Guide - Master Thread:
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*All air speeds are IAS (Indicated Air Speed)
*All speeds and climb times are on AEC with the obvious exception of “MEC Settings” section
*Speeds are recorded after AEC radiators fully settle/stabilize to ensure accuracy/consistency both at 100% and WEP.
*Map used is Berlin (15.1 Celsius) for all speed, climb and performance measurements. Smolensk and Sicily are only used to adjust cooling settings once cooling settings are found the plane performance is measured on Berlin to minimize variables.
AEC: Auto Engine Control
MEC: Manual Engine Control
0Rad: MEC setting to Fully closed radiator (fastest plane can go with 0 radiator Drag)
Max Speed Alert: When red warning alert appears on speedometer.
Control Lock Speed: Where elevator/controls start to lock up.
Min Ideal Turn Speed: Minimum Speed in a flat turn without contrails (no flaps)
Min Stall Speed: The slowest a plane can travel without stalling (no flaps)
Max Temp Oil/Eng: Max temperature oil/ engine can get before turning yellow
Climb Speed: The airspeed that the climb tests were done at.
Max Kph: Shows 100% throttle max speed in level flight at given altitude
Time w/WEP: Shows climb to 1000M with WEP followed by top speed in level flight with AEC
Hp drop: The altitude where a steep drop off in horsepower begins
Notes: Notes are any extra info that applies with the following abbreviations:
(H): Aircraft runs hot
(FS): Aircraft has fuel starvation
(DC): Aircraft has Drogue Chute
(AB): Aircraft has airbrake
Eng Mix: Engine mixture setting %. “-” in chart, means to leave mixture at default setting. If there is a different value, it will be clearly stated as a percentage. (This affects very few aircraft)
Prop Pitch: Prop pitch setting %. Prop pitch will be shown in short hand “Prop100” = (prop pitch 100%) Prop Pitch can also have a color-coded prop pitch setting according to map temperature. Use Color coded Air RB Map Temperature guide to ensure proper settings
Rad Setting Oil/ ENG: Radiator settings will be shown in short hand “Rad100/50” = (Radiator100%oil/50%water). Radiator settings are shown Cold/Moderate/HOT climate. they are color coded accordingly blue/green/Red. Use Color coded Air RB Map Temperature guide to ensure proper settings.
Super Charger 100/WEP: Elevation to shift super gears 100%/WEP while traveling at indicated airspeed. Almost all chart gear shifts are set at 280kph in the chart. Gear shifts dont need to be precise more than within 100M, shifting up too soon is generally worse than shifting up late.
*For some planes like early Spitfires Prop Pitch adjustments are included under Super charger Column . Super Charger gear shift altitudes listed are for the prop pitch listed in the chart. Example: prop pitch adjustments to 100% at 6000M will look like “P100@6000” under super charger column.
MEC/0Rad WEP Top Speed: Shows top speed Using WEP @ 1000M for MEC and 0Rad (0/0 Radiator) This is used to show how much drag effect the radiator has comparatively.
– P-39N-0, P-39Q-5: This plane benefits from MEC over AEC overall. Significant increase to top speed with MEC +30kph. Engine hp drop around 4100M.
– P38E: Radiators are very erratic on this plane creating a lot of drag, (at least 10 deg Celsius). Prop90 had same top speed and climb as Prop100 up to 5900M. Prop90 can be used to 5900M Then Prop100 should be used. Radiator settings had minimal effect on climb rate using WEP PropAuto had worse top speed, lower altitude for horsepower drop (5600M vs. 6300M) than Prop90, this is the only plane, at this time, that this behavior with PropAuto was observed.
Details:
AEC:520/MEC:521/0Rad:525
Prop90 with Rad4/4 @ 1000M = 501/523WEP Kph (Cold) (up to 5900M).
Prop90 with Rad8/8 @ 1000M = 499/521WEP Kph (Mod) (up to 5900M).
Prop90 with Rad16/16 @ 1000M = 494/517WEP Kph (Hot) (up to 5900M).
***Infi-WEP settings (minimum of 300kph airspeed for cooling): ***
Prop90 with Rad4/6 @ 1000M = 501/523 (Cold) (up to 5900M)
Prop90 with Rad24/20 @ 1000M = 493/515WEP Kph (Mod) (up to 5900M)
Prop90 with Rad50/40 @ 1000M = 484/504WEP kph (Hot) (up to 5900M)
*For reference only, engine hp drops around:
PropAuto=5600M
Prop100=6900M
Prop90=6300M
– P38G-1, XP-38G: Radiators are very erratic on this plane creating a lot of drag, (at least 10 deg Celsius too low). Prop90 had same top speed as PropAuto but much better cooling, with approx +1.2 seconds per 1000M climb. Prop90 can be used to 4200M Then PropAuto should be used. Radiator settings had minimal effect on climb rate using WEP. Engine hp drop around 5900M.
Details:
AEC:540/MEC:543/0Rad:547
Prop90 with Rad4/4 @ 1000M = 519/546 (Cold) (up to 4200M)
Prop90 with Rad8/8 @ 1000M = 517/543WEP Kph (Mod) (up to 4200M).
Prop90 with Rad16/16 @ 1000M = 513/539WEP Kph (Hot) (up to 4200M).
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop90 with Rad4/4 @ 1000M = 519/546 (Cold) (up to 4200M)
Prop90 with Rad16/18 @ 1000M = 513/539WEP Kph (Mod) (up to 4200M).
Prop90 with Rad32/32 @ 1000M = 505/532WEP Kph (Hot) (up to 4200M).
– P-63A-5, P63A-10, P63C-5: There is not a lot of performance gain but the temperatures staying cool still makes it worth using. these planes overheat fast under 280kph, keep speed over 300kph for cooling.
Details:
P-63A-5, P-63A-10: Engine hp drop around 4900M.
P-63-C5: Engine hp drop around 5600M.
– P-38j-15, P-38L-5-LO: Radiators are very erratic on this plane creating a lot of drag, (radiators are set approx 10 deg Celsius too low). Flight performance of these two is the same. The main difference is better roll rate, air brake and gun pods of the LO. Prop90 had same top speed and same climb rate as PropAuto but much better cooling. Prop90 can be used to 6500M Then PropAuto should be used. Radiator settings had minimal effect on climb rate using WEP. Engine hp drop around 7900M.
*Mixture should be set to Mix64 giving extra horsepower.
Details:
AEC:553/MEC:556/0Rad:560
PropAuto with Rad4/4 @ 1000M = 539/558WEP Kph (Cold)
PropAuto with Rad8/8 @ 1000M = 537/556WEP Kph (Mod)
PropAuto with Rad16/16 @ 1000M = 534/553WEP Kph. (Hot)
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop90 with Rad4/4 @ 1000M = 539/558WEP Kph (Cold)(up to 6500M).
Prop90 with Rad8/12 @ 1000M = 537/556WEP Kph (Mod) (up to 6500M).
Prop90 with Rad16/16 @ 1000M = 534/553WEP Kph (Hot)(up to 6500M).
– P-38L-5-LO gun pods effects:
*12.7MM gun pods:
Time to 1000M - 1:17/1:10WEP (+6/+6)
Top speed at 1000M - 524kph/544kphWEP (-11/-9)
– F-82E: The performance improvement for this plane is minor. however, it does run hot and having a consistent radiator setting helps with that instead of AEC going up and down. Do not WEP without at least some radiator open or else the radiator will instantly develop a leak if it gets too hot. Engine hp drop around 6600M.
F-82E gun pod effects (AEC):
*12.7MM gun pods:
Time to 1000M - 1:27/1:13WEP (+13/+10)
Top speed at 1000M - 556/596WEP Kph (-26/-27)
– P-36G: This plane benefits from MEC over AEC overall. This plane gets a WEP speed increase around 40kph from MEC. The AEC opens the radiator fully during WEP which causes a loss of speed. Engine hp drop around 5200M.
– P-40E: This plane runs very hot, setting prop pitch to Prop70 and leaving the Rad at -/100 has less of an impact on performance than simply lowering the throttle and keeps the plane from overheating. at over 4000M Prop100 can be used without overheating. Hot maps are an issue with this plane. Engine hp drop around 3900M.
– P-40F-10: This plane benefits from MEC over AEC overall. This plane does not overheat like the P-40E-1, and is easy to manage thermally. Engine hp drop around 5100M.
– P-51: This plane runs hot without MEC, lowering to Prop98, Rad-/100 on normal maps and Prop94, Rad-/100 on hot maps resolved overheating. Engine hp drop around 3800M.
– P-51C-10, P-51D-5, D-30: These planes will run hot without MEC, very simple set and forget settings. It generally makes more sense to just use Infi-WEP settings, see details below. Engine hp drop around 7000M.
Details:
– P-51C10:
AEC:595/MEC:595/0Rad:598
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop100 with Rad70/70 @ 1000M = 574/594WEP Kph (Cold)
Prop100 with Rad90/90 @ 1000M = 573/591WEP Kph (Mod)
Prop100 with Rad100/100 @ 1000M = 571/589WEP Kph. (Hot)
– P-51D5:
AEC:583/MEC:583/0Rad:589
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop100 with Rad70/70 @ 1000M = 566/583WEP Kph (Cold)
Prop100 with Rad90/90 @ 1000M = 563/581WEP Kph (Mod)
Prop100 with Rad100/100 @ 1000M = 563/580WEP Kph. (Hot)
– P-51D30:
AEC:606/MEC:606/0Rad:614
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop100 with Rad70/70 @ 1000M = 566/607WEP Kph (Cold)
Prop100 with Rad94/90 @ 1000M = 563/606WEP Kph (Mod)
Prop100 with Rad100/100 @ 1000M = 563/605WEP Kph. (Hot) (Oil may still turn yellow)
– P-51H-NA: This plane will run hot without MEC, very simple set and forget settings. It generally makes more sense to just use Infi-WEP settings, see details below. Engine hp drop around 8400M.
Details:
AEC:658/MEC:658/0Rad:664
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
PropAuto with Rad-/60 @ 1000M = 590/658WEP Kph (Cold)
PropAuto with Rad-/80 @ 1000M = 589/656WEP Kph (Mod)
PropAuto with Rad-/90 @ 1000M = 586/655WEP Kph. (Hot)
– P-47D-22-RE: This plane benefits from MEC over AEC overall. AEC likes to fully open Rad when using WEP creating a lot of drag, which is the reason top speed with WEP at 1000m is only 519. Prop75 should be used up to 8800m then raised to Prop85. Setting to Prop75 allows plane to fly with Rad0/0 settings, increases top speed, and climb. Mixture should be set to Mix82 giving extra horsepower, mixture should be lowered at 10000m to ½ (Mix41) to extend ceiling. Engine hp drop around 9300M/8800WEP.
– P-47D-25: This plane benefits from MEC over AEC overall. Prop80 should be used up to 8800m then raised to Prop90. Setting to Prop80 allows plane to fly with Rad0/0 settings, increases top speed, and climb. Mixture should be set to Mix82 giving extra horsepower, mixture should be lowered at 10000m to ½ (Mix41) to extend ceiling. Engine hp drop around 9300M/8800WEP.
– P-47D-28: This plane benefits from MEC over AEC overall. Prop80 should be used up to 6500m then raised to Prop90. Setting to Prop80 allows plane to fly with Rad0/0 settings, increases top speed, and climb. Mixture should be set to Mix82 giving extra horsepower. Engine hp drop around 7000M/6500WEP.
– P-47N: This plane benefits from MEC over AEC overall. Prop90 should be used up to 10000m then raised to Prop100. Setting to Prop90 allows plane to fly with Rad0/0 settings, increases top speed, and climb. Mixture should be set to Mix82 giving extra horsepower. Mixture should be lowered at 10000m to ½ (Mix41) to extend ceiling. Engine hp drop around 10800M/8700WEP.
*Delaying prop pitch switch from 8700M to 10000M with WEP had minimal performance impact on climb but kept engine much cooler (less than +3 seconds to climb from 8700-10000M and same approx top speed). That is why prop pitch adjustment is delayed.
*This plane runs much cooler with Prop 90 but for sustained WEP application without overheat the following settings are provided:
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop90 with Rad0/0 @ 1000M = 527/584WEP Kph (Cold)
Prop90 with Rad4/16 @ 1000M = 521/579WEP Kph (Mod)
Prop90 with Rad16/26 @ 1000M = 516/573WEP Kph (Hot)
– F2A-3: This plane benefits from MEC over AEC overall. Engine hp drop around 4100M.
– F4F-3/4: This plane benefits from MEC over AEC overall. AEC is pretty bad on both of these planes, when you use WEP the radiator will fully open slowing the aircraft down slower than if you were not using WEP at all. Engine hp drop around 5800M.
– F4U-1A, F4U-1A (USMC), F4U-1D, F4U-1C: All of these F4U’s run hot. AEC barely cools them leading to engine death. These planes are unique that they don’t overheat much more with WEP than without, airspeed makes a big difference in cooling. MEC settings let plane WEP mostly without overheating. Keep speed above 300-330kph to prevent overheating. Engine hp drop around 6700M.
Details:
– F4U-1A:
AEC:562/MEC:562/0rad:565.
PropAuto with Rad20/60 @ 1000M = 546/562WEP Kph (Cold and Mod)
PropAuto with Rad25/70 @ 1000M = 545/561WEP Kph (Hot)
– F4U-1A (USMC):
AEC:566/MEC:566/0rad:569.
PropAuto with Rad20/60 @ 1000M = 553/566WEP Kph (Cold and Mod)
PropAuto with Rad25/70 @ 1000M = 551/565WEP Kph (Hot)
– F4U-1D:
AEC:554/MEC:554/0rad:557.
PropAuto with Rad20/60 @ 1000M = 539/554WEP Kph (Cold and Mod)
PropAuto with Rad25/70 @ 1000M = 538/553WEP Kph (Hot)
– F4U-1C:
AEC:554/MEC:551/0rad:554.
PropAuto with Rad20/60 @ 1000M = 535/551WEP Kph (Cold and Mod)
PropAuto with Rad25/70 @ 1000M = 533/549WEP Kph (Hot)
– F4U-4: This aircraft tends to run hot. Prop pitch had to be lowered to Prop90 to prevent overheating. Prop90 loses about 0/-7 Kph top speed. Prop90 adds just under +2/+1.5 seconds per 1000M climb time compared to Prop100. Prop90 can be used to 7600M Then Prop100 should be used. Oil radiator appears to have no noticeable drag effect. Engine hp drop around 7800M.
Details:
AEC:609/MEC:602/0rad:609
Prop90 with Rad50/100 @ 1000M = 580/602WEP Kph (Cold, Mod and Hot)
*Prop100 with Rad50/100 @ 1000M = 580/609 (additional performance option) (Cold no overheat) (Mod and Hot will overheat)
*Throttle at 97% (regardless of map temperature) can be used with AEC without overheating to achieve about the same performance as Prop90 settings above. This is just another option. PropAuto supercharger gear shifts are different than in chart and are listed at the bottom of this description.
*For reference only, PropAuto Supercharger gear shifts:
(2nd gear: 2200M/1700WEP) (3rd gear: 6800M/6300WEP)
– F4U-4B: This aircraft tends to run hot. Prop pitch had to be lowered to Prop90 to prevent overheating. Prop90 adds just under +1/+1 seconds per 1000M climb time compared to Prop100. Prop90 can be used to 7400M Then Prop100 should be used. Oil radiator appears to have no noticeable drag effect. Engine hp drop around 7700M.
*Switching to 2nd supercharger gear under 400M can easily cut engine performance. It is recommended to switch no lower than 400M and if traveling at high speed (over 500kph) to switch gears at 700M.
Details:
AEC:617/MEC:619/0rad:623
Prop90 with Rad50/70 @ 1000M = 588/623WEP Kph (Cold)
Prop90 with Rad50/100 @ 1000M = 585/619WEP Kph (Mod and Hot)
*For reference only, Prop100 Supercharger gear shifts:
(2nd gear: 1700M/400WEP) (3rd gear: 6200M/5000WEP)
– F6F-5, F6F-5N: These planes benefit from MEC overall vs AEC. AEC mismanages the radiator on this plane. (Radiators are set approx 10 deg Celsius too low). Prop90 Had Better Climb, higher top speed and lower temperatures up to 8000M.
*Performance was unique in that climb rate was same as Prop100 up to 2000M then Prop90 performs better, around -20 seconds for WEP climb to 6000M and -10 seconds for 100% throttle. Prop90 can be used to 8000M Then Prop100 should be used. Engine hp drop around 6800M.
Details:
– F6F-5: AEC:532/MEC:540/0rad:545
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop90 with Rad16/20 @ 1000M = 535/538WEP Kph (Cold) (up to 8000M)
Prop90 with Rad24/28 @ 1000M = 531/535WEP Kph (Mod) (up to 8000M)
Prop90 with Rad36/36 @ 1000M = 528/531WEP Kph (Hot) (up to 8000M)
– F6F-5N: AEC:526/MEC:534/0rad:540
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop90 with Rad16/20 @ 1000M = 525/532WEP Kph (Cold) (up to 8000M)
Prop90 with Rad24/28 @ 1000M = 521/529WEP Kph (Mod) (up to 8000M)
Prop90 with Rad36/36 @ 1000M = 517/525WEP Kph (Hot) (up to 8000M)
*For reference only (Both F6Fs), Prop100 Supercharger gear shifts:
(2nd gear: 1800M/600WEP) (3rd gear: 5800M/4500WEP)
– F8F-1, F8F-1B: This is one of the hotter planes tested, going to Prop88 or higher overwhelms the radiator. Heat had to be mitigated with prop pitch at Prop87 up to 5500M with about (+1 Second or less slower climb time per 1000M) and (-8/-6kph) top speed. Prop87 can be used to 5500M Then Prop100 should be used. At high alt, 6000M and above, WEP has little effect. Engine hp drop around 4700M.
F8F-1 gun pod effects:
*12.7MM gun pods performance:
Time to 1000M - 1:05/1:02WEP (+8/+8)
Top speed at 1000M - 586kph/593kphWEP (-22/-21)
F8F-1B gun pod effects:
*12.7MM gun pods performance:
Time to 1000M - 1:08/1:04WEP (+10/+8)
Top speed at 1000M - 585kph/593kphWEP (-22/-21)
*For reference only, Prop100 Supercharger gear shifts:
(2nd gear: 2300M/300WEP)
– F7F-1: Like the F8F this plane runs hot, and Rad management enables performance without overheating. To achieve same top speed as AEC set Rad to ½ and speed will match. Lowering prop will severely affect climb so better option is Rad management for top speed as needed. Engine hp drop around 5700M.
– P-61C-1: This plane benefits from MEC overall vs AEC. AEC mismanages the radiator on this plane causing overheating. Prop90 Had Better Climb, higher top speed and lower temperatures up to 8200M. Prop90 can be used to 8200M Then Prop100 should be used. Engine hp drop around 8600M.
*As an extra option, Prop80 can be used for about the same performance up to to 6000M for much better cooling. Slightly higher top speed (around +3Kph) and less than a 3 second slower climb time to 6000M making this a very good option).
*Premium Planes:
– P-51A: This plane will run hot without MEC. Engine hp drop around 4700M.
– XP-38G: Radiators are very erratic on this plane creating a lot of drag, Prop90 had same top speed as PropAuto but much better cooling, with approx +1.2 seconds per 1000M slower climb. Prop90 can be used to 4200M Then PropAuto should be used. Radiator settings had minimal effect on climb rate using WEP. Engine hp drop around 5900M.
Details:
AEC:540/MEC:543/0Rad:547
Prop90 with Rad4/4 @ 1000M = 519/546 (Cold) (up to 4200M)
Prop90 with Rad8/8 @ 1000M = 517/543WEP Kph (Mod) (up to 4200M)
Prop90 with Rad16/16 @ 1000M = 513/539WEP Kph (Hot) (up to 4200M)
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop90 with Rad4/4 @ 1000M = 519/546 (Cold) (up to 4200M)
Prop90 with Rad16/18 @ 1000M = 513/539WEP Kph (Mod) (up to 4200M)
Prop90 with Rad32/32 @ 1000M = 505/532WEP Kph (Hot) (up to 4200M)
– XP-50: This plane benefits from MEC over AEC overall. This plane does not gain additional cooling from high speed, it actually gets slightly warmer at high-speed including dives. Prop100 overwhelms the radiator and there is minimal difference between Prop100 and Prop90 for climb (+1 Second or less per 1000M). Prop80 can be used up to 8500M for cooling at cost of approx 3 seconds per 1000M, Prop90 Between 8500M-9000M Then Prop100 above 9000M . Engine hp drop around 7500M.
*Using AEC and lowering to 90% throttle had worst performance tested.
Details:
AEC:546/MEC:546/0Rad:555
***Infi-WEP settings (Actually 100% throttle no overheat, there is no WEP): ***
Prop80 with Rad8/16 @ 1000M = 548Kph (Cold) (up to 8500M) (No overheat)
Prop80 with Rad16/24 @ 1000M = 546Kph (Mod) (up to 8500M) (No overheat)
Prop80 with Rad24/32 @ 1000M = 541Kph (Hot) (up to 8500M) (No overheat)
Prop90 with Rad8/36 @ 1000M = 544Kph (Cold) (up to 9000M) (No overheat)
Prop90 with Rad20/100 @ 1000M = 524Kph (Mod) (up to 9000M) (No overheat)
Prop90 with Rad28/100 @ 1000M = 523Kph (Hot) (up to 9000M) (Yellow overheat)
– XP-55: This plane benefits from MEC over AEC overall. Engine hp drop around 5200M.
– P-61A-1: This plane benefits from MEC overall vs AEC. AEC mismanages the radiator on this plane causing overheating. Prop90 Had Better Climb, higher top speed and lower temperatures up to 7400M. Prop90 can be used to 7400M Then Prop100 should be used. Engine hp drop around 6800M.
*For reference only, Prop100 Supercharger gear shifts:
(2nd gear: 2600M) (3rd gear: 5500M)
– P-51D-10, D-20-NA: These planes will run hot without MEC, very simple set and forget settings. One area of note that although the D-10 and D-20 look identical, the D-10 has a much better WEP performance in climb and top speed. Engine hp drop around 7000M.
– P-51D-10:
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop100 with Rad70/70 @ 1000M = 566/600WEP Kph (Cold)
Prop100 with Rad90/90 @ 1000M = 563/598WEP Kph (Mod)
Prop100 with Rad100/100 @ 1000M = 563/597WEP Kph. (Hot)
– P-51D-20:
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop100 with Rad70/70 @ 1000M = 566/583WEP Kph (Cold)
Prop100 with Rad90/90 @ 1000M = 563/581WEP Kph (Mod)
Prop100 with Rad100/100 @ 1000M = 563/580WEP Kph. (Hot)
– P-38K: Radiators are very erratic on this plane creating a lot of drag, (at least 10 deg Celsius). This plane flies like the J variant except way better WEP performance. It does not have the aileron boosters or airbrake that the L does. Prop90 had better top speed (+3kph for both 100% throttle and WEP) and same climb rate as PropAuto. Recommend using over PropAuto. Prop90 can be used to 6200M Then PropAuto should be used . Radiator settings had minimal effect on climb rate using WEP. Engine hp drop around 8800M.
Mixture should be set to Mix64 giving extra horsepower.
Details:
AEC:583/MEC:589/0Rad:591
Prop90 with Rad4/4 @ 1000M = 539/590WEP Kph (Cold) (up to 6200M)
Prop90 with Rad8/8 @ 1000M = 537/589WEP Kph (Mod) (up to 6200M)
Prop90 with Rad16/16 @ 1000M = 534/585WEP Kph (Hot) (up to 6200M)
*Prop90 with Rad32/32 @ 1000M = 527/578WEP Kph (additional cooling option up to 6200M).
*Prop85 and WEP can also be used with any of the above radiator settings up to 6000M with a fraction of a second decrease per 1000M WEP climb, but increased speed and cooling.
Infi-WEP settings (minimum of 300-330kph airspeed for cooling):
Prop90 with Rad4/4 @ 1000M = 539/590WEP Kph (Cold) (up to 6200M)
Prop90 with Rad28/28 @ 1000M = 529/580WEP Kph (Mod) (up to 6200M)
Prop90 with Rad70/40 @ 1000M = 520/569WEP Kph (Hot) (up to 6200M)
– P-47M-1-RE: This plane benefits from MEC over AEC overall. Prop90 should be used up to 10000m then raised to Prop100. Setting to Prop90 allows plane to fly with Rad0/0 settings, increases top speed, and climb. Mixture should be set to Mix82 giving extra horsepower. Mixture should be lowered at 10000m to ½ (Mix41) to extend ceiling. Engine output decrease is the same for Prop90 and Prop100. Engine hp drop around 10800M/8700WEP.
*Delaying prop pitch switch from 8700M to 10000M with WEP had minimal performance impact on climb but kept engine much cooler (less than +3 seconds to climb from 8700-10000M and same approx top speed). That is why prop pitch adjustment is delayed.
This plane runs much cooler with Prop90 but for sustained WEP application without overheat, the following settings are provided:
***Infi-WEP settings (minimum of 300-330kph airspeed for cooling): ***
Prop90 with Rad0/0 @ 1000M = 535/589WEP Kph (Cold)
Prop90 with Rad0/14 @ 1000M = 531/586WEP Kph (Mod)
Prop90 with Rad12/26 @ 1000M = 528/582WEP Kph (Hot)
– F2G-1: This plane runs hot, keeping speed over 300-330kph helps a lot with cooling especially on hot maps like Sicily. Engine hp drop around 5200M.
Details:
AEC:637/MEC:638/0rad:641.
PropAuto with Rad44/44 @ 1000M = 611/639WEP Kph (Cold)
PropAuto with Rad100/48 @ 1000M = 610/638WEP Kph (Mod and Hot)
***Infi-WEP settings (minimum of 380kph airspeed for cooling): ***
PropAuto with Rad100/100 @ 1000M = 607/636WEP Kph (No overheat for Cold and Mod, overheats on Hot)
*Strikers/Bombers:
– A2D-1: This plane runs hot, Airspeed makes little to no difference in cooling. Throttle can be adjusted to 98.4 on moderate maps to mitigate overheat at a cost of about +1 second per 1000M to climb and -6Kph at 1000M to top speed. Engine hp drop is about 56-60hp per 500M. The hp drop is linear with no sudden drop offs.
