Flying and Skip Bombing the Blenheim on Cockpit Instruments

[ATAG_Dutch]

Originally Posted by Moggy

Dutch, please consider making a Blenheim bombing video where you have to cruise at say 10,000 ft. I think it'd help with those (like my good self) struggling with carb heat, cruise settings etc.

Hi Moggs. What Knucks says is just so. I made a short vid in the Level Bombing thread here;

http://forum.1cpublishing.eu/showthr...t=28667&page=6

Level bombing from 6000ft, entering IAS into the sight, not TAS. Entering TAS fell way short. Bit of a game issue going on there.

But if you mean a vid simply for engine management at altitude, it's a bit of a strange one. I've always thought of carb heat as either on or off, but only recently someone mentioned that it's variable. I've yet to test this theory out for the reasons Knuckles says.

But for ref, I climb at +4 boost, cowl flaps 1/3 open (visually that is, it's about 35-40% in the digital readout), never touch mixture from the 'lined up with the mark on the quadrant' setting (I don't think it works anymore anyway since last official patch), engage carb heat @ 4500ft.
Now comes the strange bit. As you gain altitude your engines start to rattle, even with temps in range, and the only cure I've found so far is to gradually back off the throttle, which is opposite to what I'd expect. keep on climbing and 10,000ft is easy, but by the time you get there, you're at about +1 boost or so. Keep your temps in range and it's not a problem, but backing off the throttle seems weird. Maybe I'm missing something here, and it may be the variable carb heat.

Now I'm going to have to go and try it out. Thanks for the prod!

Edit: My previous carb heat on/off setup gave either zero or 100% carb heat. With it now set to variable, you can gradually increase it from 4500ft upwards, but it actually makes no difference, so on or off is better in terms of workload.

Again, the engines started to rattle at about 7500-8000ft, so I pulled back slightly on the throttle until it stopped. A few hundred feet later it rattles, so back off a bit more. Eventually at 10000ft I was at 50% throttle and +1 boost, but cruising along happily at 150mph IAS.

I can confirm again that mixture setting does not function at all at the moment, and because mixture setting must be fixed, probably explains the need to back off throttle. Perhaps the mixture is fixed at too rich a setting for these altitudes. Here are some screenshots of settings at 10000ft. I included the digital readouts for those that use them, and you'll see that some shots say mixture 32%, some 93%. This is to show that mixture makes no difference.