High altitude Bomber performance

[Karnak]

A quick test with 100% fuel and 800kg of bombs gave a climb rate of 50fpm as the Ki-67 crossed 31,070ft.

[Vinkman]

In my film the 67 is at 33-34k making 260-235mph with plenty of lift to maneuver. I could barely make 30k with a 410 with 30mms and 50% of fuel to begin with and with tanks almost empty I could not get past 30k or 260mph. If it seemed that I was getting too close the 67 made a slight turn and any maneuvering sent me fluttering down. The chase began from our strats and ended at Bish strats when I ran out of fuel.

My source says that the service ceiling for 410A is 10,000 m with 9,500 kg. Gross weight for 410B with 30mms is 11,030 kg which I presume is with full tanks (7,940 kg empty).

I think that when my tanks were almost empty I should have been able to get past 30k.

Maybe the AH 410 is just a sick bird liftwise...

-C+

This 

Not being a Aero engineer, I'm not sure of the right terms, but the 410 wing suffers more lift loss per angle of attack than any plane in the game. It's like if you climb or turn the plane at al lthe wing becomes useless. Fairly low angles of attack seem to produce wing stalling, and any touch of the stick brings the slats out. And even with them out, the wing is contantly stalling. I wonder if this plane needs a little High alt tuning.

[Charge]

What is curious is that offline I got 410B with 30mms rather easily above 30k and ultimately to 33,5k still making 260mph (15%fuel left).

What could explain different performance offline and online?

-C+

[morfiend]

What is curious is that offline I got 410B with 30mms rather easily above 30k and ultimately to 33,5k still making 260mph (15%fuel left).

What could explain different performance offline and online?

-C+

  Wind?






   

[Charge]

Wind?

How?

-C+

[Karnak]

There seem to be a surprising number of posters here who think that a head wind allows one to climb higher than in still air.

Guys,

If you have a speed of 275mph in still air your true airspeed and ground speed will both be 275.

If you are in a 25mph headwind your true air speed will be 275mph and your ground speed will be 250mph.  Your speed through the air and the speed of the air over your wings and the lift provided by your wings is not changed by a head wind.

[earl1937]

There seem to be a surprising number of posters here who think that a head wind allows one to climb higher than in still air.

Guys,

If you have a speed of 275mph in still air your true airspeed and ground speed will both be 275.

If you are in a 25mph headwind your true air speed will be 275mph and your ground speed will be 250mph.  Your speed through the air and the speed of the air over your wings and the lift provided by your wings is not changed by a head wind.

If you have a speed of 275mph in still air your true airspeed and ground speed will both be 275. Not always, depends entirely on the existing density altitude! The higher the altitude, the ground speed in "zero" wind, the ground speed will always be greater than the true airspeed.
Aircraft flight instruments, however, don't compute true airspeed as a function of groundspeed and windspeed. They use impact and static pressures as well as a temperature input. True airspeed is equivalent airspeed that is corrected for pressure altitude and temperature (which define density). The less dense air at altitude allows the aircraft to move faster over the ground but because of the less dense air, the IAS would be about the same, and the true airspeed, after correcting for pressure altitude and temperature, would be greater and in zero wind, the ground speed would always be greater.

[MK-84]

I think Karnak means that regardless of whether I have a tailwind or a headwind it does not affect the ability to reach any specific altitude.