[Mechanist]

I've tested the blenheim for quite a long time, (because it's the only red bomber) and came up with some "interresting" issues:

I've put this results in another bug explanatory thread but I think it will be usefull to put it here aswell

CEM:

Mixture doesn't work at all. I tested it high and low and it's have no effect on temperature, exhaust gas, fuel consumption or anything. And when you set the throttle to 0 no mather what mixture settings you have, it will exhaust black smoke. Also the lever works inversely like in the hurricane.

Prop pitch seems to be two stage in the 3D modell. (on 0 pitch input it turns right to a more featherd position, on anything else than 0 it turns left to its takeoff position. You can observe it when the engines are stoped) However, it have a full effect on rpm in different positions (not just two stages) as I measured:

Throttle 75 %
IAS 200-210 mhp
Height 8000ft
Radiator 100%
Carburetor heat 100%
Pitch % / RPM
100 / 2660
75 / 2520
50 / 2320
25 / 2120
0 / 1760

Carburetor heat seems to work inversely. In 100% you'll get less engine temperature then in 0%

Throttle 50 %
Pitch 75%
IAS: 150-160 mph
Height: 8000 ft
Radiator 100 %
Carburetor heat % / Engine temperature °C / RPM
100 / 201 / 2260
75 / 203 / 2290
50 / 208 / 2340
25 / 221 / 2380
0 / 233 / 2480

Also the carburetor heat controll lever labeld as "AIR INTAKE SHUTTER" (Don't really know how it suppose to work on this airplane)

Boost cut-out doesn't have any effect on engines at all.

Other:

Tailwheel is fixed about 30° to the right when you strat on the ground, making taxiing and straight takeoffs almost inpossible.

Althought the following are not direct part of operation limits and checklist, could be usefull to know:

Blenheim mk IV bombsight problem:

If you fly for example at 6000 ft with 190 mph TAS level flight and you give this parameters to the bombsight, it points approx 3 miles closer then the actual impact point.

So i adjusted the input settings to find the correct impact point and here are the results:

Scenario 1: Adjusting the airspeed with correct altitude to find the correct inpact point:

Fligth conditions 3000 ft 190 mph TAS:
Set height to 3000 ft set speed to 90 mph

Fligth conditions 6000 ft 190 mph TAS:
Set height to 6000 ft set speed to 110 mph


Scenario 2: Adjusting the altitude with correct airspeed to find the correct inpact point::

Fligth conditions 3000 ft 190 mph TAS:
Set speed to 190 mhp TAS the height input is 12000 ft

Fligth conditions 6000 ft 190 mph TAS:
Set speed to 190 mhp TAS the height input is 16000 ft

Also when you set the airspeed you'll see the speed setter wheel turning in the right lower part of the bombing sight. It have a scale from 100-260
I belive it's in mph, but it turns uncorrectly. Althougt the bar/lath in the left upper section of the sight have a scale between 90-310 mph.

The wheel turns like this:

set with keys / Indicated in the wheel:
90 / 258
100 / 120
110 / 155
120 / 190
130 / 225
140 / 258

And so on in the same pattern, so you can turn it arrond 3 times. I belive it is pretty wierd...

The last minor issue I found that when you press shift+F1 to look into the sight it's focusing on the right side bar, which is the "minutes to 60 miles" indicator. I would rather look on the left side bar which is "airspeed in mph x 10" or make it switchable.

Also i tried the BR.20s bombsight, which works just like the Blenheim sight, and it's works perfect. Also the He-111s and the Ju-88s bombsights works as they should in my observations.

These results were taken in the previous 1.01 patch but seems all are valid in 1.02 aswell (in my observation).