J-20 5th Gen Fighter Thread VIII

by78

General
Just a few more...

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Inque

New Member
Registered Member
Any thoughts about the J-20's apparent lack of an autocannon? While such a weapon is more than likely to be obsolete now in the age of BVR guided missiles, surely it's a "better to have and not need than to need and not have" situation.
 

Temstar

Brigadier
Registered Member
Any thoughts about the J-20's apparent lack of an autocannon? While such a weapon is more than likely to be obsolete now in the age of BVR guided missiles, surely it's a "better to have and not need than to need and not have" situation.
There's been persistent rumours that WS-15 would improve the thrust to weight enough that autocannon will be introduced. The most recent hint was by Xi Yazhou:
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不过机炮还是有需求的,哪怕仅仅是飞行员的心理需要,就像手枪在现代战场上的作用一样。那么与其继续坚持苏联机炮设计的思路,GSH-30-1机炮解决一切问题,那不如学美国人,用转膛炮,炮弹也带多一点,主要业务其实是对地扫射,算了。

而且转膛炮的瞬间火力密度更高,也更适合具备强大瞬间盘旋能力的鸭翼战斗机抓住转瞬即逝的射击窗口。

当然这样会比较重,不过现在咱们有涡扇-15了,不差这点重量了呀……

因此这方面军迷们还是可以有所期待的。
 

BoraTas

Captain
Registered Member
Any thoughts about the J-20's apparent lack of an autocannon? While such a weapon is more than likely to be obsolete now in the age of BVR guided missiles, surely it's a "better to have and not need than to need and not have" situation.
I don't think it is a big deal, really. Modern combat aircraft never depend on their gun to do anything. Even 4th gen aircraft are nowadays expected to disengage if close-range combat (might still be BVR) is likely. Modern missiles are so effective that close range usually means both sides are getting a missile. An aircraft ending up in a situation where it was out of missiles, and couldn't disengage, and didn't get shot down is very unlikely.

The rationale behind the inclusion of the gun in the F-35 was that USAF thought an aircraft should be able to engage targets of opportunity on the ground. An F-35 spent its bombs and then saw a convoy? Strafe it. This is also why they switched to 25 mm from 20 mm.
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Blitzo

Lieutenant General
Staff member
Super Moderator
Registered Member
One question regarding the idea of fitting a gun pod onto the J-20 is - Where?

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There seems to be no space underneath the J-20 to fit a gun pod, unlike the F-35B/C?

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If J-20 in future gets a gun (whether as a new variant or as a backfit to existing airframes or both), it wouldn't be as a dedicated gun pod, but rather it would be installed integral into existing growth space, likely on the shoulder of the aircraft behind the air intake on the dorsal side, similar to the location of the gun on F-22.

I'm not sure why one would think a gun pod would be a likely way in which J-20 would receive a gun if it did so...
 

ZachL111

New Member
Registered Member
If J-20 in future gets a gun (whether as a new variant or as a backfit to existing airframes or both), it wouldn't be as a dedicated gun pod, but rather it would be installed integral into existing growth space, likely on the shoulder of the aircraft behind the air intake on the dorsal side, similar to the location of the gun on F-22.

I'm not sure why one would think a gun pod would be a likely way in which J-20 would receive a gun if it did so...
Agree 100%. A gun pod would increase drag, lessen the aerodynamics of the aircraft, increase the structural stress on the wing or another hardpoint and would reduce it's stealth. It's just smarter to have an integrated autocannon in the J20 versus a gun pod mounted to a hardpoint.
 
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