GBU-10 and GBU-31 Weights

[Xavven]

While changing my loadout from Paveways to JDAMs because I was operating in heavy rain and snow, I noticed a huge weight difference between these two bombs. In the game, a GBU-10 weighs around 500 lbs more than a GBU-31. This doesn't make sense intuitively -- could a laser guidance kit really weigh 500 lbs more than a GPS/INS guidance kit?

 

I don't know how reliable this is as a source, but this website confirmed my suspicion. It lists weights at the very last table at the bottom of the page.

 

Paveway II GBU-10 weighs around 2,110 to 2,130 lbs

http://www.designation-systems.net/dusrm/app5/paveway-2.html

 

JDAM GBU-31 weighs around 2,085 to 2,162 lbs

http://www.designation-systems.net/dusrm/app5/jdam.html

 

A couple thousand pounds can make a big difference. Could this use some rebalancing?

[mvsgas]

Taken from AF276 Weapons File

 

GBU-10 Model A/B

Weight (full) 2,077.47 lbs +/- 5%

cg (x) 12.34 in. +/- 0.50 in.

cg (y) 0.00 in. +/- 0.50 in.

cg (z) 0.01 in. +/- 0.50 in.

Length 168.30 in.

Diameter 18.00 in.

Inertia (roll) 24.00 +/- 10%

Inertia (pitch) 428.88 +/- 10%

Inertia (yaw) 428.78 +/- 10%

GBU-10 Model /B, A/B

Weight (full) 2,088.80 lbs +/- 5%

cg (x) 12.52 in. +/- 0.50 in.

cg (y) 0.04 in. +/- 0.50 in.

cg (z) -0.09 in. +/- 0.50 in.

Length 168.30 in.

Diameter 18.00 in.

Inertia (roll) 24.00 +/- 10%

Inertia (pitch) 436.40 +/- 10%

Inertia (yaw) 436.20 +/- 10%

GBU-10 Model C/B, D/B, E/B

Weight (full) 2,110.25 lbs +/- 5%

cg (x) 13.12 in. +/- 0.50 in.

cg (y) 0.01 in. +/- 0.50 in.

cg (z) -0.08 in. +/- 0.50 in.

Length 169.90 in.

Diameter 18.00 in.

Inertia (roll) 24.00 +/- 10%

Inertia (pitch) 436.75 +/- 10%

Inertia (yaw) 435.56 +/- 10%

GBU-10 Model G/B, H/B, J/B

Weight (full) 2,129.58 lbs +/- 5%

cg (x) 12.79 in. +/- 0.50 in.

cg (y) 0.03 in. +/- 0.50 in.

cg (z) 0.01 in. +/- 0.50 in.

Length 166.77 in.

Diameter 14.50 in.

Inertia (roll) 18.55 +/- 10%

Inertia (pitch) 455.20 +/- 10%

Inertia (yaw) 455.14 +/- 10%

 

Only info on GBU-31

Weight (lbs.) – MK-84 (AF 2039; Navy 2059), BLU-109 (AF 2118; Navy 2138)

[Doughboy]

I'm sure the G-10 weighs more than the G-31 but by how much I dont know. The fins on any 2,000lb class bomb are very heavy. I cant tell you off the top of my head how much a KMU (JDAM fin) weighs versus a MXU-651 (G-10 Fin) but they are not that far apart. The MAU-169 that goes on the front of the G-10 weighs up close to 100lbs though. FWIW I think the G-10 in game is modeled like it uses the BLU-109 warhead but it looks like a MK-84. If you used a BLU-109 it would require a "Hardback Assembly" which is basically a big chunk of metal that spans the suspension lugs and it also weighs a good bit (again I forget the weight). The G-31 in game is a (V)1 or MK-84 body and would not use the Hardback so there could be part of that weight diff. I dont think there should be 500lbs between the two of them though!