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Drag index values


AeriaGloria

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Always thought it would be useful to have a drag index for JF-17. The recent discussion about pylons got me searching for what I could find. 
 

Can’t find drag added for bombs, only missiles and smart munitions and pylons 

Of note, can’t find drag added for fuel tanks or SPJ. I think I will have to do some drag tests and find a relative value. 
 

What I can find is……

 

DL pylon: 0.0015

BRM-90 pylon: 0.002

C-802 pylon: 0.0023

GB-6 pylon: 0.0024

SD-10 single pylon: 0.00086

SD-10 dual: 0.001126

Fuel tank pylon: 0.0014

SPJ pylon: 0.00064

 

SD/LD-10: 2

GB-6: 10

C-802: 8

LS-6 250/500: 8

PL-5: 1.6

C-701: 1.7 

BRM-90: 3.6

Atleast this way for air to air we can make up an approximate drag index value for when we punch the fuel tanks. 

My usual 4x SD-10 and 2x PL-5eII would add 8.2 and some change. Really wish I could find SPJ/WMD-7/DL/fuel tank/bomb figures 

I would assume fuel tanks would be around same figure as C-802/GB-6. And if PL-5 and C-701 hover under 2, can’t see how SPJ would be more then about 2. 


Edited by AeriaGloria
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5 hours ago, Napillo said:

Shouldn't the SD-10 mass be 180kg? It's 199 in this one.

I have seen varying statistics. 180 kg is a common value, so at first I thought 199 in LUA was wrong. Then I came across SD-10 placards from China that also states 199 kg. It makes sense if you compare it to sparrow weight, 

I can’t find the image, but it’s from Zuhai airshow. 
http://defenseupdates.blogspot.com/2012/11/sd-10a-and-ld-10-missiles-at-zhuhai.html?m=1

If you look at many sources, you will find lots of disagreement. But 199 kg seems to be straight from Zuhai promotional material 

 

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35 minutes ago, Napillo said:

That looks like it's the weight with the mounting bracket included, based on the photos provided. 

That’s just how it’s displayed at the Zuhai airshow. 
 

The single pylon weighs 90 kg; and the double weighs 160 kg. So doesn’t fit the 20 kg difference 

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