0 - 375 mph acceleration

[Zanth]

Important to remember that this all is based on how AH loads fuel.  So while 25% sounds equal you need to remember that it isn't equal at all.  When comparing performance this can be a large factor and I suspect why some planes don't compare as people expect (ex. The Ta152 in stories you have read were not nearly so heavilly loaded with fuel as the P-51's that encountered it).

[GODO]

Added P51B, F4U4, A6M5, Bf110G, Mosquito, SpitXIV, Tempest and Ki61.

[SELECTOR]

you really have too much time..

[bozon]

this explains how so many "faster" planes have a problem with the N1K. the thing can't reach high speeds but it reaches there much faster.

conclusion: unless you start running at over 300 mph, a nik is likely to keep up or catch you.

Bozon

[Flyboy]

Originally posted by hitech
fats you are almost correct , but you should state it thus. If a plane can out climb at a giving alt and SPEED.

Or to put it differently.

Climb rate and acceleration are linanarly proptional.( i.e. vary the same %) for any given speed and altitude.


HiTech

how do you explain the 190d9 and a5 acceleration?

[Pyro]

Originally posted by Flyboy
how do you explain the 190d9 and a5 acceleration?

Scope of the test.  Because it's starting from a standstill, takeoff characteristics form a major part of the result.  In your above example, it is easy to come to the conclusion that the A5 will outaccelerate the D9 up to 250 mph.  But that's only true when they both start from a standstill on the ground.  From a more practical test where both aircraft are inflight maintaining 150 mph, the D9 beats the A5 by 2.5-3 seconds in accelerating to 250 mph in my quick test.

[vorticon]

is it just me or do planes reach 200mph faster if you keep your wheels on the runway until it hits there?

[Edbert]

NICE WORK GODO!

A quick question, was the 51D flown with 4 @ 50s or 6? I ask because it seems to out accelerate the Bravo accross the board.

[hitech]

Ground effect vortican.

HiTech

[Edbert]

I'm gonna try and post some numbers I crunched using Excel...

   0-200   0-250   200-250   0-300   200-300   250-300   0-350   200-350   250-350   300-350   0-400   200-400   250-400   300-400
La7 2x20   23   34   11   50   27   16   84   61   50   34   143   120   109   93
N1K2J   24   38   14   68   44   30                        
109G2 1x20   24   37   13   63   39   26                        
Tempest   25   36   11   51   26   15   80   55   44   29   117   92   81   66
109G10 1x20   25   36   11   53   28   17   96   71   60   43            
La5FN   26   37   11   57   31   20   122   96   85   65            
190A5 2x20   26   41   15   68   42   27                        
109F 1x20   26   39   13   68   42   29                        
109G6 1x20   26   40   14   68   42   28                        
SpitXIV   26   36   10   56   30   20   113   87   77   57            
F4U4   27   40   13   58   31   18   97   70   57   39            
Typhoon   27   41   14   60   33   19   109   82   68   49            
Yak9U   28   42   14   62   34   20   137   109   95   75            
SpitIX   28   43   15   80   52   37                        
C205   28   42   14   72   44   30                        
A6M5   29   48   19                                 
190D9   29   42   13   60   31   18   105   76   63   45   225   196   183   165
SpitV   29   46   17   86   57   40                        
P38L   29   45   16   77   48   32                        
F6F5   31   46   15   80   49   34                        
P51D   32   47   15   70   38   23   127   95   80   57            
F4U1D   32   45   13   70   38   25   147   115   102   77            
190A8 2x20   32   46   14   70   38   24   232   200   186   162            
P47D30   33   49   16   77   44   28                        
Bf110G   34   53   19   94   60   41                        
190F8   34   51   17   77   43   26                        
Mosquito   35   53   18   85   50   32                        
P51B   35   50   15   76   41   26   158   123   108   82            
F4U1   35   53   18   80   45   27   160   125   107   80            
Ki61   36   57   21   117   81   60                        
Ta152   36   50   14   73   37   23   138   102   88   65

[Pyro]

I forgot about ground effect.  That's something to keep in mind when you're doing these tests at low altitude.  I'd recommend making the runs at 100 ft to avoid that.  If you were making runs really close to the deck, your results would be skewed.

[GODO]

Tests were done below 100 feet, starting to redo the tests now.

[Mister Fork]

Which is why I chose 150ft for my test.

Question Pyro - is there any merit to  redo my acceleation tests based on the changes in AHII?

[Pyro]

Mister Fork, I would redo them in AH2.  Some planes have changed, overall changes to the flight model may have affected that somewhat, and perhaps most importantly, you can test to a much greater level of accuracy due to the E6B function.  It's easy for the analog gauges to vary in accuracy between the different planes plus they don't offer much granularity.

[TimRas]

After the thrust bug was corrected I tested the OTD WEP speeds of Tempest, La-7, 190D-9, Typhoon, P-51D, 109G-10 and Yak-9U. All the speeds are within 1mph of the results of AH1:
http://www.hitechcreations.com/forums/showthread.php?s=&threadid=57526