v4.08 Bf-109K-4 1.80 ata

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v4.08 Bf-109K-4 1.80 ata

Postby TAGERT on Sun Apr 01, 2007 5:13 am

Bf-109K-4 1.80ata. ANALYSIS REPORT
Adobe pdf format of the FULL Bf-109K-4 1.80ata. Analysis Report with dozens of graphs for you to enjoy

TEST CONFIGURATION:
MAP: Crimea
WEATHER: Clear
TIME: 12:00PM
FUEL: 100%
WEAPON LOAD OUT: DEFAULT

TEST SPECIFICS:
RAD: 1/2 open up to 5,500m than fully opened
SPEED: 250kph up to 5,500m than increased to 270kph
POWER: 110% THROTTLE for ~1min after the overheat MSG appears than switch to 100% until overheat MSG disappears and than back to 110%

GENERAL ROC TEST METHOD:
The ground start method begins at a stop on the runway with the brakes on. The time to climb (TTC) stats when the brakes are released. The pilot completes a normal takeoff with rapid gear and flap retraction. The airplane is allowed to accelerate at low altitude to a speed somewhat below the speed for best climb speed (BCS). The pilot then performs a fairly abrupt pull-up and attempts to stabilize on the BCS schedule at the lowest practical altitude. Once stabilized on the climb schedule the pilot will adjust speed as the airplane climbs so that the schedule of best-climb speed is maintained as the altitude increases. The check climb ends when the rate of climb drops below 100 feet per minute or when a pre-established maximum altitude has been reached. Depending on the plane type, the time it takes from brakes released to lift off vary from about 20 to 40sec for a fighter. For graphing purposes, and to give the in game plane the best chance of meeting it's TTC values I removed the time between the brakes released and lift off (i.e. ROC > 0). This can cause a shift in the TTC times at alt by about 20 to 30sec.

RESULTS

Here is the summary table
Image

Here is the comparison of IL2 ROC vs. REAL WORLD DATA ROC
Image

Here is the percent error between the IL2 ROC vs. REAL WORLD DATA ROC
Image

Here is the comparison of IL2 TTC vs. REAL WORLD DATA TTC
Image

Here is the percent error between the IL2 TTC vs. REAL WORLD DATA TTC
Image

SUMMARY
As you can see from the ROC percent error graph the in-game Bf-109K-4 has a ~29% better ROC than it should have at 5,300m.

As you can see from the TTC percent error graph the in-game Bf-109K-4 has a ~48% better TTC than it should have at 1:30min

To give you a feel for these numbers look at the TTC graph at the 6,000m altitude. Note the REAL Bf-109K-4 took 6.65min (6:39min) to reach 6,000m, where as the in-game Bf-109K-4 can make it to 6,000m in 4.35min (4:21min).

The IL2 simulation goal is a 5% error..

Therefore the in-game Bf-109K-4 ROC is off by a factor of ~6
Therefore the in-game Bf-109K-4 TTC is off by a factor of ~10

Here is a link to the track file
Track File
TAGERT
Flight Sergeant
 
Posts: 79
Joined: Sun Nov 06, 2005 1:19 am
Location: CA

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