Blenheim Mk IV start up ?

[mcler002]

+1

[ATAG_Dutch]

Originally Posted by mcler002

+1

Ok, I'm fine with the start-up, but what's the secret to going straight down the runway?

Can't lock tailwheel, have only one throttle control, help please!

[Blackdog_kt]

If you're trying the cross country mission, there's a couple of extra difficuties. First of all, i don't know if this is how it spawns in all missions, but in that one the Blenheim spawns with quite a bit of right rudder trim dialed in. There is a spring-loaded bar indicator on the bottom right of the instrument panel with the neutral setting clearly marked, dial in some left rudder trim until you get it to neutral and then some.

Most of all, in the cross country mission there's a significant crosswind from your right to deal with on top of the already existing pull to the right.

It's very visible if you try that same mission with the Tiger Moth which is lighter and easier to observe the effect of wind on. First it veers to the right with the engine still off, then as you apply power, start rolling down the runway and commence your take-off run you can see it's dipping a wing in accordance with the crosswind.

So it's not only the Blenheim's engines pulling right, it's the trim too and the crosswind. Out of all these the trim is the easier to correct. The pull by the props could be mitigated by mapping keys to select the engines separately and give more power to the right engine so that it wants to turn left and counteract all these effects. However, the crosswind is built into the mission's weather conditions.

I get the feeling that the default setting of "blenheim+crosswind that pulls the same way as the props" is meant as some sort of challenge. If you open up that mission in the FMB, remove the wind (set it to zero) and save it under a different name, i guess you'll have a much easier time

[O_Smiladon]

With going down the runway just tap the brakes and she will com back on line, keep tapping till the tail lifts and then use your rudder.

works for me.

O_Smiladon

[ATAG_Dutch]

Sorry, I should have given more detail!

Yes, Blackdog, I'm in the Cross Country mission (but ended up doing it in the Hurri!)

This is with full left trim already dialled in, and tapping the brakes just means I lose too much speed.

Should the boost lever be in the 'down for on' position for take-off?

Edit: Maybe the idea is to taxi to the other end of the runway and turn, so that the crosswind helps instead of hinders. Will try later!

[Buzpilot]

Running from airstart, I have to keep rpm at bottom, to avoid engine failures.
And rpm gauges only show min 1600, but it's almost like engine control think it's 2xRPM, assuming it's really below 1400 rpm in cruise.

From a; Approval of Fairchild Bolingbroke Mk IV T, i read that rpm at takeoff should be at 2650 rpm, and thats impossible, even after a airstart.

Edit; I managed to run engines at 2650rpm, after i warmed up 15 minutes, but engines warmed up beyond 235C too fast, Cowl flaps maxed for air cooling didn't help at all.
So normal takeoff at 2650 rpm is impossible. And engines should be able to run 100% power at 2750rpm continously without overheating, so something is bugged here.

2.2 Engines
Model: Bristol Mercury XX air-cooled nine cylinder single stage Supercharged
radial rated at 820 hp for sea level take-off at 2,650 rpm and 4.25 lbs in2 boost
pressure. Each engine is fitted with dual Watford SP9-6 magnetos, a single
booster coil, a Claudel Hobson AVT.85MB carburettor incorporating
automatic boost and mixture controls and a Rotax E160 electric starter and
hand crank.

Source: http://www.caa.co.uk/aandocs/21124/21124020000.pdf

[AARPRazorbacks]

The video helped alot.
Only thing is How do you get the throttles to work togather. After I start the engines with shift 1 and I, then shift 2 and I the throttles work independently and not together.

Thanks ,

flyer01