Blenheim operating limits and checklists

[JG53Frankyboy]

in my experience so far, i dont use coarse pitch at all. I dont get enough rpm to keep the engine at needed temperature with coarse
I fly only fine pitch, and reduce throttle to keep rpm and temperature in the games desired limits...

[klem]

In case you were still wondering I got a reply from the Blenheim Society on the two fuels in the Blenheim:

...... has passed me your query re fuel of different octane ratings used in the Blenheim IVs. Yes they did have two different fuels in the same aircraft!
100 octane in one pair of tanks used for take-off and emergencies with a 'Plus 9 lbs boost' lever, and a lower octane fuel for far less boost pressure, used for cruising, in another pair, and of course this did lead to many accidents, often fatal.
How this came about is explained in detail in my book "The Bristol Blenheim - a complete history" published by Crecy. You can buy one at the discounted price of under £30 for Blenheim Society members from Ron Scot the Society Hon. Treasurer on 01 992 442 608 or borrow one from a public library.
Seems to me one or more of your group could join the Society at £15pa as they publish an excellent Journal, and have an annual Blenheim Day and lunch at Duxford with access to the actual aircraft and opportunity to meet the few remaining wartime crew and the present day engineers.
Regards Graham Warner

Enthusiasts may like to buy his book and even join their society

[335th_GRAthos]

Excellent information, impressive detail.

Now, coming back to reality, why can I not start the frigging engine?

fuel cocks (the round things on the right) on
magnetos on
throttle @20%
carb heater on (off did not make a difference either)
mixture middle
select engine #0
press I to start
It turns and dies


~S~

[JG53Frankyboy]

Try 10% throttle and FULL rich mixture ( digital infowondow reading is 0% !!)

[335th_GRAthos]

T h a n k s!

[335th_GRAthos]

Sorry for continuing with the stupid questions but progress is reaaaaly slow
Solved the problem of the engine startup, it was because I flying with little fuel in order to ensure take off but both fuel cocks' first setting was switching to the (empty) outer tanks...

OK, first problem solved, second was quick to come:
In front of me at the cockpit I see the Oil Temp gauges.
I have to wait for the oil temp to reach 60°C in order to have proper rpm response from the motors (otherwise the rpm needles tend to "yo-yo" up and down).
where is the engine temperature (air cooled engine) Does it play any role?
What is the RPM limit for the engines?
My problem is that after takeoff, I get very quickly a grosvenor failure and afterwards things take their downturn...

~S~

[Sammi79]

Engine temps are behind your right shoulder above the fuel cocks. I find engine temp is critical in the Blenheim, keep it above 200 and below 275. Max rpm I don't know but I try not to go above 2500ish.

[Mechanist]

Originally Posted by 335th_GRAthos

Excellent information, impressive detail.

Now, coming back to reality, why can I not start the frigging engine?

fuel cocks (the round things on the right) on
magnetos on
throttle @20%
carb heater on (off did not make a difference either)
mixture middle
select engine #0
press I to start
It turns and dies


~S~

If you have 60% or less fuel make sure you turn the fuel cocks twice, to the inner position. You can always check your fuelon the upper left panel over your head, also you can switch it in inner or outer position (outer in default)

20% throttle is a bit much, try it on 10%

[JG53Frankyboy]

one has still to open bombdoors ?

hopefully the automatc opening/ closing in the Ju88 was a tleast deleted.

[Blackdog_kt]

The Ju88 bomb bays work, let me explain.

The 88 has manual bomb controls (the bombardier had to turn a crank by hand), there was no motor to open them by pressing a button or moving a lever.

Like any other hand-driven control in the sim (for example the flaps on the 109), you need to keep pressing the button to simulate the pilot turning the wheel by hand (and also for the anthropomorphic controls difficulty setting to track it, if it is enabled).

If you only have the "toggle bomb bay doors" command and you press it once, the game doesn't register a continuous input and the co-pilot will not turn the hand-crank all the way to open.

So, the solution is to go into options and assign separate commands to "open bomb bay doors" (for example, alt+O) and "close bomb bay doors" (for example, shift+O).
Then, if you press alt+O and keep it pressed, the co-pilot will keep turning the crank and the doors will open all the way. After you release bombs you press shift+O and keep it pressed, the co-pilot will turn the crank in the opposite direction and the doors will close.