109s has no lean mix?

[Roland_HUNter]

If I know right, if the engine flame is bluish, the mix is lean.
For the FW-190 As, it's around 71%, but for 109s, it's always orange, on any throttle.

[Ghost666]

All the 109s have auto mixture control as in real life. No way to control it.

 

Have a nice day.

[Roland_HUNter]

Ahm....this was not what I asked

Fw-190 has auto mix aswell, but its switch to lean at 71%, 109s are not, even at 0%.

[354thFG_Rails]

How do you know?

[Bilbo_Baggins]

On 5/2/2022 at 4:07 AM, Roland_HUNter said:

If I know right, if the engine flame is bluish, the mix is lean.
For the FW-190 As, it's around 71%, but for 109s, it's always orange, on any throttle.

 

Have no idea really, but all I know is radial engines couldn't be any more dissimilar to V12 engines in design and cooling.

 

Perhaps radials generally run leaner at lower throttle to help not overcool the engine with the massive amounts of air pumping straight through the front. Not sure if the LA5 in game is also like what you said.

Edited May 2, 2022 by Bilbo_Baggins

[Roland_HUNter]

4 hours ago, 86th_Rails said:

How do you know?

If the mix is lean, the exhaust flame is bluish.

[354thFG_Rails]

Yes but that is just a visual effect. How do you know other than that? It could be leaning out but the visual effect doesn’t match what it’s actually doing. I’m sure there’s a way to test by flying the plane for a lean condition and comparing it to test data. 

[Roland_HUNter]

On 5/2/2022 at 10:32 PM, 86th_Rails said:

Yes but that is just a visual effect. How do you know other than that? It could be leaning out but the visual effect doesn’t match what it’s actually doing. I’m sure there’s a way to test by flying the plane for a lean condition and comparing it to test data. 

Try it with P-39 example.
on lean the flame will be bluish.

[-=PHX=-SuperEtendard]

Is there data on fuel consumption at low manifold pressure levels? if so we could compare in game.

[Roland_HUNter]

 

[354thFG_Rails]

22 hours ago, Roland_HUNter said:

Try it with P-39 example.
on lean the flame will be bluish.

 

On 5/2/2022 at 3:32 PM, 86th_Rails said:

Yes but that is just a visual effect. How do you know other than that? It could be leaning out but the visual effect doesn’t match what it’s actually doing. I’m sure there’s a way to test by flying the plane for a lean condition and comparing it to test data. 

Again the flame color is a graphical effect. Not saying your wrong, you might be right. But you should be able to test this against real life data and see if it actually is doing what it’s suppose to do. 

Edited May 5, 2022 by 86th_Rails

[-=PHX=-SuperEtendard]

4 hours ago, Roland_HUNter said:

 

Do you have real life numbers? that's what I meant, looked in the kurfurst page for the DB 605 spec sheet but there was only consumption numbers for 1.3 ata regime

[Roland_HUNter]

11 hours ago, -=PHX=-SuperEtendard said:

Do you have real life numbers? that's what I meant, looked in the kurfurst page for the DB 605 spec sheet but there was only consumption numbers for 1.3 ata regime

Sadly I have not, only from the video what I linked.

For G-14, the videos said:
1.7 ata: 10,43 Liter/min

1.3 ata: 6.86 Liter/min
1.2 ata: 5,93 Liter/min
1.0 ata: 4,66 Liter/min

0.8 ata: 3.38 Liter/min

The Handbuch says(for DB 601, not 605)
1.4 ata: 6,25 Liter/min
1.3 ata: 5 Liter/min
1.23 ata: 4,66 Liter/min
1.15 ata: 4,16 Liter/min

This allied report says:
http://kurfurst.org/Engine/Fuel/Aircraft_fuel_consumption_of_the_GAF_January-March1945_via_Fischer-Tropsch_Archives.pdf

Page 20:

109:
Cruise cons.
57 gallon=215 liter/hour
3.58 Liter/Min
"Adjusted" cons:
77 gallon=291 liter/hour
4.85 Liter/Min