Author Topic: Fighter Aircraft Acceleration test results (Read 1887 times)

HoHun · « **Reply #30 on:** April 06, 2003, 03:40:17 AM »

Hi Mister Fork,

>Then the question comes into play, does propeller design have a play in the acceleration results or is the game designed strictly on horse power with an acceleration quotient? Dale? Doug? Does anyone know?

You could try to compare Me 109E-4 and Me 110C-4/B climb rates at 200 mph and 300 mph. Climb rate ist proportional to acceleration at the same speed.

If the Me 110C-4/B out-accelerates the Me 109E-4, it should out-climb it at at least one of these speeds, too, which would seem off to me.

Regards,

Henning (HoHun)

Kweassa · « **Reply #31 on:** April 06, 2003, 07:59:01 AM »

What could be the reason for the Ta152H-1 scoring so low in the tests?

Compared to the 190D-9, I can't find any reason why the 152 is so drastically inferior in acceleration..

Does the Jumo213E suck that bad at low alts?

Something to do with internal fuel load?

HoHun · « **Reply #32 on:** April 06, 2003, 10:00:15 AM »

Hi Kweassa,

The Ta 152H-1 carried 904 kg of fuel/MW50/GM-1 internally (plus 55 kg of lubricants).

With 25% fuel, it would weigh in at 4313 kg, compared to the 3950 kg of the Fw 190D-9.

Without MW50 injection, the Jumo 213E was good for 1730 HP (varying with source), compared to the 2100 HP of the Jumo 213A with MW50, so the Ta 152H-1 would have a clearly inferior power loading of 0.40 HP/kg compared to 0.53 HP/kg for the Fw 190D-9.

The Ta 152H-1 did actually have MW50 injection available, though, but I'm not sure how much power that gave at low altitude. I'm certain it still stayed the aircraft with less power and more mass, though.

Regards,

Henning (HoHun)

Wilbus · « **Reply #33 on:** April 06, 2003, 03:01:18 PM »

400-450 Hp HoHun.

Gm1 gave out around 400 extra at a normal consumption of 100 g/s, it could also be run at less and more then that.

So with MW50 the Jumo 213E-1 as the Ta152H-1 used would actually have as much HP as the Jumo 213A. It is heavier though but it's also got refined aerodynamics. But no real use discussing it anymore...

Naudet · « **Reply #34 on:** April 07, 2003, 05:02:11 AM »

JUMO213E has power output of 2050PS with MW50 injection according to FW documents.

Also it has the VS9 airscrew which is slighly better than the VS111 on the D9.

Also the airscrew thrust is a little bit larger i think, but have to review that at home.

But the D12, which has same airscrew, same power and therefor same engine thrust (as i said not totaly sure here) as TA152H, fell behind the D9 at low altittudes, not much just a slight tad. This was due to weight increase of 120kg.
The TA152H adds even more weight compared to D9, as you see in HoHuns post.
Therefore the TA152H fell behind both the D9 and D12 at low altittude.

Nothing mystical here, just a matter of facts.