How does a multi-engine A/C (e.g. Bf110C) handle power loss. In this case it would be for overspeeding, last game also for severe damage. Is it calculated per engine and then totaled, or totaled and then calculated.
i.e. would Emergency power, 2.0 per engine and overspeed would give me 1.0 power accel 2 x (2.0 x 1/3) or 1.5 power accel (2 x 2.0) x 1/3?
Power loss for each engine is figured individually for step losses.
Power reduction due to overspeed, severe damage, loaded, overloaded reductions is the reduction to the sum of all engines.
In your example each engine provides 2.0 power, so 2 x 2.0 = 4 = 1.5 total power.
Greg Boeser
(https://groups.yahoo.com/neo/groups/Fighting_Wings_Games/conversations/messages/12519) 11/12/2010
The unloaded Beaufort engines, at speed of 4.5 or less at VL altitude delivers 2.5 accel per engine. That’s a total of 5.0 accel.
The charts say that for a loaded A/C, Engine power = 2/3 of available power accel.
If this is by engine, each Engine delivers 2/3 of 2.5, with is 1.5.
That’s a total of 3.0, versus the 3.5 that it is if the engine power reduction is for the total (2/3 of 5.0 is 3.5).
How do you calculate things when both engines don’t have the same engine power setting ?
For example, with a small engine fire, I’m about to put the right engine to idle power, so the right engine will deliver 0 accel. Should the left engine deliver 1.75 (half of 3.5), or 2/3 of 2.5 which is 1.5.
Third edition text is pretty specific.
Engine Power Loss Order: When A/C suffer reductions to engine power due to critical hits, it is done in steps equal to the columns of the Fractional Values Tables. Thus, there are five steps of power loss: 2/3, 1/2, 1/3, 1/4 and "disabled".
Reduce power in the following order; power step losses, severe damage, load status, then for exceeding max attainable speed. If multiple engines are in use, sum the available power after step losses, before reducing power for other factors.
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JD
(https://groups.yahoo.com/neo/groups/FW_Fight_99/conversations/messages/984) 06/11/2014
Wellington III at 19.0, speed 3.5, have 1.0 power accel for each engine (2).
Each engine took 1 step power loss.
Engine power :
(Sum all engine powers first, then modify for step loss, severe damage, and load status in that order)
Sum all engine power with existing step loss --> 0.5 + 0.5 = 1.0
modify for step loss (???) --> 1.0
modify for severe damage (NA yet) --> 1.0
modify for load status (loaded) --> 2/3 of 1.0 = 0.5
(https://groups.yahoo.com/neo/groups/FW_Fight_14_Allied/conversations/messages/404) 07/05/2015
B-17F at 24.0, speed 4.5, have 1.0 power accel for each engine (4).
Throttles hit and limited to cruise power
Engine 1 reduced 1 step
Engine 2 reduced 1 step
Engine 4 reduced 2 steps
Total 4 steps power loss == max attainable speed reduced by 0.5
Max level speed : 5.0
Max cruise speed : 4.5 (max attain -0.5)
Max Mil Engine power 0.5 + 0.5 + 1.0 + 0.5 = 2.5
Max Cruise Engine power 1/3 of 2.5 = 1.0 (FVT)
(https://groups.yahoo.com/neo/groups/FW_Fight_98/conversations/messages/1770) 26/06/2015
How do you apply step losses to engine with fractional power? i.e. the 4-engine heavies with power listed like (0.25, 0.75, 1.25, 1.75)
Yeah, the FVT is set up for FPs of which only 1 or 0.5 is tracked.
For those pesky 4 engine bombers - try this.
Round down to the next nearest 0.25. I'd keep 0.25 as the smallest game-able number to track.
Full = 0.25
2/3 = 0
1/2 = 0
1/3 = 0
1/4 = 0
Full = 0.5
2/3 = 0.25
1/2 = 0.25
1/3 = 0
1/4 = 0
Full = 0.75
2/3 = 0.50
1/2 = 0.25
1/3 = 0.25
1/4 = 0
Full = 1.0
2/3 = 0.50
1/2 = 0.50
1/3 = 0.25
1/4 = 0.25
Full = 1.25
2/3 = 0.75
1/2 = 0.50
1/3 = 0.25
1/4 = 0.25
Full = 1.50
2/3 = 1.00
1/2 = 0.75
1/3 = 0.50
1/4 = 0.25
Full = 1.75
2/3 = 1.00
1/2 = 0.75
1/3 = 0.50
1/4 = 0.25
(https://groups.io/g/FW-Ref-Central/message/3731) 02/03/2020