PRC Mach 4 missiles
-
PRC Mach 4 anti ship missiles
Length 4.18 m,320mm to 560 mm diameter ,weight 980 kg,war head 300 kg.
pl post translation here. -
No name given for this missile in the article. It just labels it as a long range supersonic cruise missile. It seems to be based on the KH-35 Kayak anti ship cruise missile, except that it includes a ramjet propulsion system besides the rocket booster.
The missile can be used to attack installations as well as large warships.
Guidance appears to be some form of GPS-Datalink, as well as millimeter band radar and infrared imaging.
Launching altitude for this Air Launched Cruise missile will be approximately 10,000 to 20,000 meters, at launch speeds of Mach 0.8 to 1.5.
It will cruise at an altitude of 15,000 to 20,000 meters and continue to accelerate to approximately Mach 4. Maximum range of 400km, and uses a Hi Lo attack profile. Missile will climb to cruising altitude and will descend on terminal homing. Most likely sea skimming from then on. -
GPS datalink? that seems a little too dependent on the US. I reckon it's some form of inertia guidence with operator overide and radar or IR in the terminal stages.
the US would probably be able jam a GPS guided missile considering it's their satallites that provide the guidence. -
I didn't say it WAS using GPS. I said some FORM of GPS.Originally posted by eugtay:GPS datalink? that seems a little too dependent on the US. I reckon it's some form of inertia guidence with operator overide and radar or IR in the terminal stages.
the US would probably be able jam a GPS guided missile considering it's their satallites that provide the guidence.
The article only mentioned that it used satellite tracking and positioning.
An article commenting on the Chinese plan to build their own GPS array.
http://www.defensetech.org/archives/002504.html
Yes, you don't jam missile. You jam the signal. Who is to say that China would not theatre counter-jam US GPS signals in the event of a conflict? -
hah.. as what my Air Navigation lecturer always says... dun depend on GPS... satellites belong to US.. they can switch off anytime they feel like it...
-
That will probably cut off their own access to such signal.Originally posted by Moonstriker:hah.. as what my Air Navigation lecturer always says... dun depend on GPS... satellites belong to US.. they can switch off anytime they feel like it...
Of course there're other alternative sources available, say the Russian one, the upcoming European Galileo or the Chinese own “Baidou-2” or Compass navigation systems. -
nope it wont cut access to their own.there's some code to it.helps them filter out everyone elseOriginally posted by 38�Ž:That will probably cut off their own access to such signal.
Of course there're other alternative sources available, say the Russian one, the upcoming European Galileo or the Chinese own “Baidou-2” or Compass navigation systems. -
See original Moonstriker's post, he said "switch off"Originally posted by |-|05|:nope it wont cut access to their own.there's some code to it.helps them filter out everyone else
Anyway, There's DGPS technology can offset the "code" you refer to., so itÂ’s really not matter too much.
And as I said, Nowadays nobody uses only one signal, GPS guidance can use combined signal from different navigation networks. -
They switch off their GPS and u see how many people will get lost at Sea including their own Navy. Not to mention how many of those JDAMs and JSOWs that can no longer be used. They wont' switch off, encrypt maybe. Then again, I dun think the JDAM kits will know how to decrypt.
-
They scramble the signalOriginally posted by Shotgun:They switch off their GPS and u see how many people will get lost at Sea including their own Navy. Not to mention how many of those JDAMs and JSOWs that can no longer be used. They wont' switch off, encrypt maybe. Then again, I dun think the JDAM kits will know how to decrypt.
While you're getting a 500m accuracy, the DOD will still be able to enjoy a sub metre accuracy -
Correct me if I'm wrong. So if there's any conflict with the US, it would be most prudent to knock out most if not all of their GPS network satellites to ensure that they are unable to guide their weapon systems? And then release your own strike, which is without the aid of the mentioned navigation aids on them? Doesn't make alot of sense to me...can someone explain further? Thanks!
-
the US are not nincompoops .... satellite guided weapons like JDAMs also have their own redundant guidance systems should the GPS grid get taken out ...Originally posted by SpecOps87:Correct me if I'm wrong. So if there's any conflict with the US, it would be most prudent to knock out most if not all of their GPS network satellites to ensure that they are unable to guide their weapon systems? And then release your own strike, which is without the aid of the mentioned navigation aids on them? Doesn't make alot of sense to me...can someone explain further? Thanks!
taking out the GPS on them would be an inconvenience, but it won't be nowhere as crippling as some people make it out to be ....
infact, during gulf war two, the USAF took out a few russian supplied GPS jammers with ..... JDAMs ...
-
Cool, thanks for sharingOriginally posted by Fatum:the US are not nincompoops .... satellite guided weapons like JDAMs also have their own redundant guidance systems should the GPS grid get taken out ...
taking out the GPS on them would be an inconvenience, but it won't be nowhere as crippling as some people make it out to be ....
infact, during gulf war two, the USAF took out a few russian supplied GPS jammers with ..... JDAMs ... -
Thats because their INS (Inertial Navigation System) has already been GPS aligned. The GPS component is just there to tell the bomb where it is at that point of time. You don't really need the GPS to be up to have the bomb hit the target, cos almost every coordinate is already GPS mapped already.
Hence, there is INS component of a GPS/INS system. The GPS just needs to be there to align the aircraft's location before the mission launch, and the INS basically does the rest of updating the JDAM.
From what I understand the GPS updates are not instantaneous, and there is a certain amount of lead time. Hence, for a missile or bomb weapon, its "updated" coordinate would be lagged, if not for the INS component as well.
But say in a prolong conflict, where the GPS is taken out for almost a month already. A lot of INS onboard ships, and aircraft would be misaligned. Now that would affect the accuracy of JDAMs. -
Then i guess it's back to the old way of taking positions from the stars and what not.Originally posted by Shotgun:Thats because their INS (Inertial Navigation System) has already been GPS aligned. The GPS component is just there to tell the bomb where it is at that point of time. You don't really need the GPS to be up to have the bomb hit the target, cos almost every coordinate is already GPS mapped already.
Hence, there is INS component of a GPS/INS system. The GPS just needs to be there to align the aircraft's location before the mission launch, and the INS basically does the rest of updating the JDAM.
From what I understand the GPS updates are not instantaneous, and there is a certain amount of lead time. Hence, for a missile or bomb weapon, its "updated" coordinate would be lagged, if not for the INS component as well.
But say in a prolong conflict, where the GPS is taken out for almost a month already. A lot of INS onboard ships, and aircraft would be misaligned. Now that would affect the accuracy of JDAMs. -
LOL! I think its still more accurate to take bearing from to static object. More accurate... loL!
-
China need not rely on US GPS lah people.
China is building their own GPS system, called "Bei Dou" (–k“l) system. Quite some years already. If I am not mistaken, as of NOW, the "Bei Dou" system is operational in China already. Meaning, it can provide GPS guidance in China. It is slowly expanding to the rest of the world as more satellites are being deployed in space.