no bug ME Payload selector 2+2=3

[Crowman]

Now I'm no maths genius by any means, but when you add 2 identical numbers it should double the value or am I missing something. Now for the point of this post, in Mission Editor if you select the payloads selector, let us use the A-10C for example, If you install an AIM-9L on the wing tip it changes the weapons weight by 256 lbs, so my simple logic says if I load an identical weapon on on the opposite wing tip position thats another 256 lbs thats 2x256 =512 lbs, thats what my maths says, and yet the result in the weapons total weight has increased by a total of 509 for the two missiles from the no missiles weight, this weight difference varies from weapon to weapon. I first found this discrepancy on the F-14 because I was making a weight calculator to suss the landing weights post mission on the return to the boat, and was comparing to in SIM weight calculations, so far it affects, F-14, A-10A, A-10C, FA-18C, AV-8B, I have also checked it with metric units and the fault is still present so in theory units conversion isnt a factor , checking continues, your opinions on this would be appreciated.

[Frederf]

The stores weight includes both weapons and suspension gear. So a single AIM-9 is the summation of:

• (1) AIM-9
• (1) DRA
• (2) LAU-105

And a second AIM-9 only adds another weapon weight. Suspension gear is a significant part of the stores weight.

[Crowman]

Hi Frederf.

I appreciate the reply and agree with you if I were adding a 2nd missile to the same pylon, but what I am talking about is adding a 2nd identical weapon complete with all the same mounts, ejectors etc to the opposite wingtip in effect mirroring the stores.

[Frederf]

1xAIM-9M on station 1 is 116 (+-0.5) kg. Adding 1xAIM-9M on station 11 is 231 (+-0.5) kg. Multiplying by two is 232 (+-1.0) kg.

In imperial, 256+-0.5 pounds, times two is 512+-1.0 pounds, shows 509+-0.5 pounds. If I remember DCS is doing something silly like rounding/truncating first and then adding for display purpose which can give more variance in addition than the normal method. To the precision DCS chooses to display masses in the native SI I've never found a wrong tallying up.