FFE Thrust/Accel to Elite LM

[Reval]

I'm hoping this is the right forum under which to post this...

Does anyone know of (or use) a formula for translating Frontier ships' thrust/acceleration to Elite light Mach (LM)?

Or are we forced to pick a baseline value (say, an Adder at 18.1 g/0.24 LM) and extrapolate?

If the latter, I have the following conversions:

Code: Select all

Ship			Th/Acc		Vel/c			Cargo
---------------------------------------------------------------------
Adder			18.1 g		0.24  LM		  40 TC
Anaconda		 6.0 g		0.08  LM		 650 TC
Asp	Explorer	22.2 g		0.29  LM		 120 TC
Boa			 8.0 g		0.11  LM		1300 TC
Cobra 1			16.1 g		0.21  LM		  60 TC
Cobra 3			20.1 g		0.27  LM		  80 TC		
Constrictor		22.0 g		0.29  LM		  90 TC
Fer-de-Lance		??.? g		?.??  LM		???? TC	
Gecko			16.0 g		0.212 LM		  34 TC	
Krait			20.1 g		0.27  LM		  27 TC 
Mamba			??.? g		?.??? LM		???? TC
Moray			14.0 g		0.186 LM		  70 TC
Python			10.0 g		0.133 LM		 400 TC
Sidewinder		23.2 g		0.31  LM		  25 TC
Viper 2			25.2 g		0.334 LM		  52 TC

(grateful if anyone can comment or verify)

[Cmdr James]

Im pretty sure that there is no exact science to it.

[Reval]

Pretty much what I thought (but decided to check, in case)

The extrapolation method works quite well:

LM := (FEShipG/FEBaseG) * BaseLM;

So for an Asp Explorer that would be

(22.2/18.1) * 0.24 = 0.294

(wrote a Pascal proggy to list the equivalents out, so can play with the baselines and normalize to Oolite's slowest-fastest range, if required.)

[stranger]

LM (Light Mach) in Oolite is just game speed unit, exactly 1000 mps. So Adder with 0.24 LM max speed has 240 mps speed on full thrust.
Thrust in Oolite really means thrust/mass ratio (acceleration). Adder has thrust 30 and will reach full speed at 8 s (240/30).

[Reval]

Thanks for that, stranger. Interesting.

I'm still hoping that your new information doesn't throw out my calculated _relative_ game-speeds for the FE ships I'm proposing to replace the core Oolite/Elite ships with via an OXP...

Provisionally I'll be keeping the existing Oolite thrust-factors, though of course the FE manual gives different ones.

Your further comments welcome.