fixed PTB 580 too heavy

[grim_reaper68]

Hi after looking the weapons file, i saw that the weight of the PTB 580 is too high. In fact 580 gal (2200l) with a mean density of 0.81kg/liter, gives 1782kg. If i add the 251kg of the empty tank (i don't know if the weight value is for the fuel+tank, or if dcs add the 2 vlaues itself), we have such as 800 to 1000kg difference with the value that is is the file (2887).

[Flappie]

It seems that AERGES calculations were done with a mean density of 1.2kg/liter.

Which reference does say 0.81kg/liter?

[Flappie]

Hm... I read page 10 of the flight manual, which says JP1 fuel density is 0.79 kg/l.

[grim_reaper68]

I've found it on google, i don't know which typre of jet fuel the french airforce use, so i've searched kerosene density. For the 1200 liter tank it seems that the value is correct. 

[fausete]

Thanks for noticing! Corrected internally and hopefully will be available on the next update.

[Flappie]

@grim_reaper68 Is it fixed from your point of view?

I see a weight of 1149 kg (12545-11396), which does not even comprise the weight of 2200 liters of JP1 fuel (2200x0.79=1738 kg).

[grim_reaper68]

Hi

Yes the values are correct for me. The loadout is good. Just tested it in dcs. The 2200l (580 gal)  has 1734kg + 350kg of the tank.  The empty aircraft with 100% canon gives 11286, with the empty 2200l: 11636 (11286+350), full 2200l: 13370 (11286+2084). For the 1200l the full tank weights in fact 1149kg (898+251), also checked in DCS. 

If i could make a little request for the tanks? Could it be possible to have both in liters .

Or maybe the official name of them, which are RPL 201 for the 2200l/580gal and RP 35 for the 1200l. I don't know if in Spain they have other denomination. 

 

[Flappie]

Thank, I did not make my calculations with the right tank.

I'll make the request.

Edited January 29, 2023 by Flappie