190A8 wish list

[MANDOBLE]

 

Originally posted by funked:
The date of issue is September 1944.

Power is roughly proportional to the cube of speed in that regime.  1700*(355/340)^3= 1935

BMW 801D is rated at 2100 Hp with MW50, still mising 165hp.

[Zigrat]

funked up


u are right that the math says on deck 2000 hp is being produced from speed calculations

but not from climb (large discrepancy)

[RAM]

Mandoble, let it go.

They can have their 200-unit-limited F4U1-C series, but we can't have Mw50 for the 190A8, nor MG removal ability (though there is great evidence of the removal of the cowl MGs in anti buff and Jabo roles for the 190s), nor the multi-bomb racks for the 190s, nor the realistic metric gauges, nor the realistic ammo counters...etc etc etc.

Its simply worth nothing to waste breath asking for things like this. As long as its' not american and has no hispanos, then it can't be in AH.

(yes, is a rant. so what?)


[This message has been edited by RAM (edited 01-24-2001).]

[MANDOBLE]

RAM, I'm not going to let it go.

Zigrat, agree 100% with you about climb rate discrepancy.

funked, if we have MW50 now, we have the A8 underated by 165hp on the deck. Even more, we are filling up the aux fuel tank with 118 liters of the more dense and heavier normal fuel instead of the lighter methanol/water mix. And, of course, if aux tank is filled with normal fuel, no MW50 effect should be present when WEP is enganged.

Pyro, if you are reading any of these comments, it would be very apreciated your clarifications about the actual boost system present in our 190A8.

[RAM]

 

Originally posted by MANDOBLE:
Pyro, if you are reading any of these comments, it would be very apreciated your clarifications about the actual boost system present in our 190A8.

Petrol injection on air intake. It explains the power output at sea level, and the dramatical loss of it over 3-5K.

[funked]

I agree Zig, it doesn't make sense.  I wish we could track down those German engineers and find out what the deal was.

Mandoble, I have never seen a primary source for the 2100 hp figure.  There was a guy "buzzbait" who posted last week that he had some German documents concerning MW 50 and the BMW 801 but I haven't heard back from him yet.  I've been researching this topic for a couple years and I'd sure like to find a good answer.

PS "funked, if we have MW50 now"  I never said that.

PPS The charts (with English titles added):  http://www.raf303.org/funked/a-8manual/

The "raised supercharger pressure" curves are for performance using a manifold pressure control override device that was the current spec of boosting device according to the handbook.

[This message has been edited by funked (edited 01-24-2001).]

[MANDOBLE]

 

Originally posted by funked:
PPS The charts (with English titles added):  http://www.raf303.org/funked/a-8manual/
[This message has been edited by funked (edited 01-24-2001).]

Funked, your charts have some disturbing details:

Page 16 (Flight performance)
Flying weight: 4300kg.
Fuel load: 525L (FWD) + 115L (AFT)
2x131: 950 rounds
4x151/20: 780 rounds.
TOTAL weapons weight: 324.67kg

Page 17 (Flight performance, GM-1)
Flying weight: 4300kg.
Fuel load: 525L (FWD) + GM1 system
2x131: 950 rounds
4x151/20: 780 rounds.
TOTAL weapons weight: 324.67kg

Page 18 (Flight performance, Fw 190A-8/R2)
Flying weight: 4300kg.
Fuel load: 525L (FWD) + 115L (AFT)
2x131: 950 rounds
2x151/20: 500 rounds.
2xMk108: 110 rounds.
TOTAL weapons weight: 362.79kg

42kg per 151/20 gun
115g per 151/20 round
17kg per 131 mg
34.6g per 131 mg round
60kg per Mk108 gun
312g per Mk108 round

Different weapons weights, different fuel loads, but all the tested aircrafts have the same "flying weight". I dont feel very confident about these "english translated" charts ...

[funked]

Disturbing is probably too strong a term, but yes it is a secondary reference and as such is subject to typos or other errors.  I have tried to track down the original documents from which those charts were taken but have had no luck.