Using 3rd edition playtest rules, version 3.5.2.
Here is a question about the overspeed decel of an A/C who choses an idle power setting, and whose mal level speed is 8.0 if emergency power is used, or 7.5 if not. Emergency power is limited to 15 combat turns on that A/C, after that he can suffer engine critical hits (guess what A/C that is ? :-) ).
The A/C’s new start speed (going idle) is 11.5+.
What is the max attainable speed in that case, for the idle overspeed decel calculation ?
Is it 7.5 or 8.0 ?
Is the overspeed decel :
(11.5 - 7.5/2) x 2 = (11.5 - 3.5) x 2 = 8 x 2 = 16
Or
(11.5 - 8/2) x 2 = (11.5 - 4) x 2 = 7.5 x 2 = 15
I would say it’s based on the airframe’s resistance, not what the engine can momentarily achieve, i.e. 16 decel.
- Zeppelin
(https://groups.yahoo.com/neo/groups/FW_Referee_Central/conversations/messages/2691) 31/12/2014
The 8.0 Max Level is valid only IF the a/c uses EMG power. Using IDLE is clearly not EMG, so, 7.5 is Max Level for Overspeed calculations.
Wild Bill
BoB GM
(https://groups.yahoo.com/neo/groups/FW_Referee_Central/conversations/messages/2692) 31/12/2014
In any case where there is a separate emergency power speed in ( ) or [ ] due to some kind of power boosting. Idle should be referenced off the normal max speed (not em. boost max speed).
On some airplanes, em. power only gives extra power, not extra speed as the difference worked out to be less than 25mph measurements I use in play. On later war planes, some had enough of a speed increase to model in the game, that is why the ( ) speeds are there.
JD
(https://groups.yahoo.com/neo/groups/FW_Referee_Central/conversations/messages/2694) 31/12/2014
Overspeed decel is calculated on max attainable speed:
(start speed - max attainable speed) x 2
Max attainable speed (apart from damage or load factors) depends on throttle setting.
For Spit#2 throttle setting is Military thus overspeed should be: (8.5 - 6.5) x 2 = 2 x 2 = 4
Note that 0 power accel is due from start speed > max attainable (in this case throttle only defines excess speed decel).
Max dive speed has nothing to do with overspeed because decel overspeed is related to max speed to which engine is able to push the aircraft.
When the aircraft exceeds its max level speed the engine power is not more be able to transmit thrust to the aircraft, instead the air drag transmits counter-power to the engine converting the propeller in a brake.
For this reason how much more is the difference between current speed and max attainable (with engine) greater will be deceleration due overspeed.
I hope I was clear enough : )
Flavio
(https://groups.yahoo.com/neo/groups/palmsunday/conversations/messages/479) 24/04/2015
When start speed is > max attainable speed, power acceleration is always = 0 (engine don't transmit more power to the aircraft).
Throttle setting is to player choice, but in this case it will produce always 0 power.
Throttle only defines excess speed decel in this situation(Rule 4.4)
This means that in our situation:
-with cruise setting (max attainable speed = max listed -1.5) os decel will be = [8.5 - (6.5-1.5)]x2 = 7
-with military setting (max attainable speed = max listed) os decel will be = (8.5 - 6.5)x2 = 4
In each case the power will be = 0
Flavio
(https://groups.yahoo.com/neo/groups/palmsunday/conversations/messages/481) 24/04/2015