SUBSIM Radio Room Forums - View Single Post - Realism- and gameplay-related hardcode fixes for SH3.EXE

LGN1 · 12-29-11, 04:47 PM

Hi Leitender,

as I understand you, the three quantities speed, RPM, and 'engine properties' all scale linearly. We know that max. continuous RPM is 470 and max. RPM 490, i.e., RPM is increased by 20/470 = 4%. Therefore, speed also increases by 4%. So, what is missing is either the max. continuous speed or max. speed.

For instance, if we know the max. continuous speed v_max,cont we can calculate the max. speed: v_max = v_max,cont*1.04. We can enter this value with RPM 490 in the sim file and set the Flank value in the cfg file to 0.96 (GWX value for Full is 0.94, i.e., pretty close to 0.96).

In H.Sie's mod it's enough to modify the speed dependence, i.e., scaling the probability with a speed factor that is close to 0 for values <=0.96 and then grows fast to 1 for a value of 1, e.g., speed^64 or speed^128

Since the value for 'Full' is actually quite close to 0.96, players who don't like to change their sim and cfg files can just interpret 'Flank' as 'over-power' and 'Full' as max. continuous speed.

To summarize, I think it's enough if H.Sie modifies the speed dependence a bit and increases the probability so that T50 at speed=1 is reduced (maybe one hour

). Players who want to have a 'safe' Flank setting must adjust their cfg files.

Cheers, LGN1

PS: There is one issue I don't understand yet. If speed is determined only by RPM, where is the power difference between the two diesel configurations going? In the link I've posted, both diesels run at 490 RPM but the power output is quite different. Did they use different ship's screws?

12-29-11, 04:47 PM	#2915
LGN1 Ace of the Deep Join Date: Mar 2006 Posts: 1,138 Downloads: 147 Uploads: 12	Hi Leitender, as I understand you, the three quantities speed, RPM, and 'engine properties' all scale linearly. We know that max. continuous RPM is 470 and max. RPM 490, i.e., RPM is increased by 20/470 = 4%. Therefore, speed also increases by 4%. So, what is missing is either the max. continuous speed or max. speed. For instance, if we know the max. continuous speed v_max,cont we can calculate the max. speed: v_max = v_max,cont*1.04. We can enter this value with RPM 490 in the sim file and set the Flank value in the cfg file to 0.96 (GWX value for Full is 0.94, i.e., pretty close to 0.96). In H.Sie's mod it's enough to modify the speed dependence, i.e., scaling the probability with a speed factor that is close to 0 for values <=0.96 and then grows fast to 1 for a value of 1, e.g., speed^64 or speed^128 Since the value for 'Full' is actually quite close to 0.96, players who don't like to change their sim and cfg files can just interpret 'Flank' as 'over-power' and 'Full' as max. continuous speed. To summarize, I think it's enough if H.Sie modifies the speed dependence a bit and increases the probability so that T50 at speed=1 is reduced (maybe one hour ). Players who want to have a 'safe' Flank setting must adjust their cfg files. Cheers, LGN1 PS: There is one issue I don't understand yet. If speed is determined only by RPM, where is the power difference between the two diesel configurations going? In the link I've posted, both diesels run at 490 RPM but the power output is quite different. Did they use different ship's screws?