The difference about the gbu-24 laser guided bomb？

[kaoqumba]

In the latest update, ED said the gbu-24 guided bomb will be released later because it is very different from other laser-guided bombs. I saw on the network that the GBU24 USES GPS/INS components, and even if the laser guidance and GPS receiver fail at the same time, the accuracy will not be completely lost. Does this mean that this type of bomb, to some extent, will be able to hit without laser guidance? Similar to JDAM?

[Nospin44]

From wiki

 

"Compared to the GBU-10 family, or the Paveway II family, the GBU-24 glides farther as a result of more efficient guidance technology"

[mvsgas]

In the latest update, ED said the gbu-24 guided bomb will be released later because it is very different from other laser-guided bombs. I saw on the network that the GBU24 USES GPS/INS components, and even if the laser guidance and GPS receiver fail at the same time, the accuracy will not be completely lost. Does this mean that this type of bomb, to some extent, will be able to hit without laser guidance? Similar to JDAM?

 

The basic GBU-24 does not have GPS nor INS. The seeker has better capability to follow the laser spot and different programing than GBU-10. The fins are also bigger.

[Flagrum]

GBU-24 is a Paveway III and so far, our LGBs were all Paveway II. The Paveway II use "bang-bang" steering which means, iirc, that the control surfaces deflect completely or deflect not at all. That leads to the well known swaying of the weapon, which is quite energy inefficient. It basically constantly over-steers and instantly has to correct that by oversteering again ... and again, etc.

 

The Paveweay III uses a more refined steering - more analogous. I.e. more precise = less oversteering = less drag = more reach (my personal laymans conclusions!)

[Frederf]

GBU-20 series are Paveway III while GBU-10 series are Paveway II. Can you guess what the GBU series of single digits? Yes, Paveway I!

 

Paveway III is not GPS/INS but it does have a barometric altimeter, digital autopilot, and proportional fin deflection. It's not designed to be accurate without the laser actually the opposite maintaining an energy surplus by design to improve its energy situation when it eventually detects the laser.

 

Primarily the motivation for developing Paveway III is that Paveway II was poor at certain kinds of delivery, namely high speed low altitude releases like an F-111 would do. Another name for the PIII is the "LLLGB" where LL stands for low level.

 

Secondary benefits of the improved guidance is larger maneuvering window, ability to reacquire lost laser, larger standoff range, climbing after release for range (loft from level release), and faster impact speeds for better penetration. The glide ratio is much better and the laser sensor actually gimbals and scans so the field of view is improved over PII. It's perhaps more similar to a laser Maverick without a rocket motor.

 

It's early 1980s tech and while sophisticated compared to earlier Paveway II it's not like JDAM. You might be thinking of EGBU-24/GBU-49/Paveway IV evolutions which include INS/GPS guidance to the LGB capabilities. This is similar to GBU-50 series of "laser JDAM" which is laser capability added to JDAM.

 

GBU-24 is just a laser guided bomb but it should be one where you can lase at 500' doing 600 knots continuously without any sag like a GBU-10 would. It'll fly farther, steer better, and see more laser dots than the PII. But it is just an LGB and will absolutely miss (by more than PII would) if no laser is detected. This is desirable as no laser overflight is a safety design feature for CAS scenarios.

[kaoqumba]

GBU-20 series are Paveway III while GBU-10 series are Paveway II. Can you guess what the GBU series of single digits? Yes, Paveway I!

 

Paveway III is not GPS/INS but it does have a barometric altimeter, digital autopilot, and proportional fin deflection. It's not designed to be accurate without the laser actually the opposite maintaining an energy surplus by design to improve its energy situation when it eventually detects the laser.

 

Primarily the motivation for developing Paveway III is that Paveway II was poor at certain kinds of delivery, namely high speed low altitude releases like an F-111 would do. Another name for the PIII is the "LLLGB" where LL stands for low level.

 

Secondary benefits of the improved guidance is larger maneuvering window, ability to reacquire lost laser, larger standoff range, climbing after release for range (loft from level release), and faster impact speeds for better penetration. The glide ratio is much better and the laser sensor actually gimbals and scans so the field of view is improved over PII. It's perhaps more similar to a laser Maverick without a rocket motor.

 

It's early 1980s tech and while sophisticated compared to earlier Paveway II it's not like JDAM. You might be thinking of EGBU-24/GBU-49/Paveway IV evolutions which include INS/GPS guidance to the LGB capabilities. This is similar to GBU-50 series of "laser JDAM" which is laser capability added to JDAM.

 

GBU-24 is just a laser guided bomb but it should be one where you can lase at 500' doing 600 knots continuously without any sag like a GBU-10 would. It'll fly farther, steer better, and see more laser dots than the PII. But it is just an LGB and will absolutely miss (by more than PII would) if no laser is detected. This is desirable as no laser overflight is a safety design feature for CAS scenarios.

 

Oh, I see! This bomb is not similar to JDAM, but more stable, more accurate and more efficient?

[greenmamba]

Oh, I see! This bomb is not similar to JDAM, but more stable, more accurate and more efficient?

 

The GBU-24 is simply put, more efficient in the way it tracks the laser beam.

[Tholozor]

I'm curious as to whether the GBU-24 we'll get will be the standard Mk-84, BLU-109, or options for either.

[Airhunter]

So I guess the 24 is still not implemented? Hoping it'll get implemented together with the TGP:

[QuiGon]

It's implemented, but not working properly yet AFAIK.

[Yurgon]

GBU-20 series are Paveway III while GBU-10 series are Paveway II. Can you guess what the GBU series of single digits? Yes, Paveway I!

 

[...]

 

Great explanation, thanks!

[jojo]

As explained, the GBU-24 has proportional guidance, it has better gliding performances, and can be programmed to use more complex trajectory (final angle of impact).

[C3PO]

Any news on this for the F-16?