US - Israel - Iran War

Not good for the israeli air defense systems.
They seems out of stock on Arrow missile, the sole able to destroy a foe missile in its ascension, so before the release of the warheads.

Sole comfort : multiple warheads are smaller so with less destruction power than a single bigger.
Iran fired a new round of BMs towards Israel. Impacts this time.

Iran has more BM than israel has anti missiles.
Except if Israel air force has destroyed a big amount of them.
Reality is in between.
Or only a routine safety measure.
 
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In case there is someone who wished to understand certain technical characteristics of the GBU series or a penetration munition.

Design Characteristics:​

Projectile Geometry​

  • Length-to-Diameter Ratio: Typically 10:1 or higher for maximum penetration
  • Nose Shape: Pointed/ogival nose reduces drag and concentrates force
  • Mass Distribution: Dense materials (tungsten, depleted uranium) in nose section

Material Properties​

  • Hardened Steel Cases: Maintain structural integrity during penetration
  • Tungsten Penetrators: Extremely dense (19.3 g/cm³) for maximum kinetic energy
  • Depleted Uranium: Dense (19.1 g/cm³) with self-sharpening properties

Penetration Process:​

Phase 1: Initial Impact​

  • Projectile contacts target surface
  • Shock waves propagate through both materials
  • Surface material begins to fracture and displace

Phase 2: Crater Formation​

  • Material flows around penetrator
  • Cavity expands as projectile advances
  • Target material experiences plastic deformation

Phase 3: Deep Penetration​

  • Steady-state penetration begins
  • Projectile maintains velocity while boring through target
  • Friction and resistance gradually slow penetrator

Phase 4: Terminal Effects​

  • Remaining kinetic energy converts to explosive/thermal energy
  • Secondary fragmentation and blast effects
  • Structural damage propagates beyond immediate impact zone

Specific Weapon Physics:​

GBU-57 Massive Ordnance Penetrator (MOP)​

  • Weight: 30,000 lbs (13,600 kg)
  • Length: 20+ feet (6+ meters)
  • Impact Velocity: ~1,000 ft/sec (300 m/s)
  • Penetration: Estimated 200+ feet in concrete
Penetration Calculation Example:

  • Kinetic Energy: ½ × 13,600 kg × (300 m/s)² = 612 million Joules
  • This massive energy concentrated in small impact area

Velocity Considerations​

Terminal Velocity vs. Impact Velocity:

  • Weapons dropped from high altitude reach terminal velocity (~500-600 mph)
  • Rocket-assisted penetrators can achieve higher impact speeds
  • Every 100 mph increase roughly doubles penetration capability
 
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The Israeli Air Force struck the Iranian nuclear complex "Khondab", 75 kilometers from Arak. This nuclear complex includes a heavy water research reactor IR-40 with a capacity of 20 MW. And a heavy water production plant, with a maximum capacity of 16-20 tons per year. At the moment, the nuclear reactor is not functioning. Earlier, Iran informed the IAEA that the reactor should start working in 2026. The aftereffects of the strike on the nuclear reactor are shown at the end of the video.

 
The video shows the destruction of an Israeli drone by an Iranian air defense system. Presumably, the IAI Eitan UAV, export designation Heron TP, was shot down. The location of the shooting is not reported. The IAI Eitan UAV has been produced since 2004, it is equivalent in size to an airplane, with a wingspan of 26 meters. The IAI Eitan UAV is designed for reconnaissance and strikes on targets. The IAI Eitan UAV develops a speed of up to 407 km / h, at an altitude of up to 14,000 meters. The flight range is up to 7,400 km, the carrying capacity is up to 2,700 kg. The cost of the UAV is about 30 thousand dollars.

 
Israeli air force has shown footage of an interception of an Iranian drone. In the video, an Israeli F-16, presumably using an AIM-9 missile, shoots down an Iranian kamikaze drone, the Shahed-136. The video was filmed over the city of Daraa, in southwestern Syria, not far from the border with Jordan. It is worth noting that the plane flew through a cloud of shrapnel, which is quite dangerous as it can end in disaster due to damage to the engines and skin. Earlier, a Ukrainian plane crashed because of this.

 
It all depends on how much Iran knows about nuclear reactors and the uranium enrichment process. The bombing may dismantle the enrichment process temporarily, but if Iranians really did their own research to get the knowledge, then they will rebuild it again; they just need money and time. The design and development are usually well documented if it's their own indigenous system.