WI: The Allies use instrumental Atomic Bombing?

What if that happened? How would they resort to that?

I for one think that the Hiroshima attack wouldn't have changed a lot, but I think Kokura would get hit, not Nagasaki. What do you think?
 
It reality how well did the boming radar on a B-29 work? Did it have that much more accuracy?
 
IIRC they could not use radar to bomb as they were concerned it could spoof the radio altimeter and set off the weapon.
 
The bombing rules specified visual bombing. The crew of Bock's Car was making a radar run when the bombardier found a hole in the clouds over Nagasaki at the last minute.
 
there were radar and barometric sensors, there was logic that 2 out of 4 had to agree before setting of the Bomb.

2nd those radar altimeters were based of the existing IFF system already on the bomber, very different frequencies, 10Ghz vs 500Mhz to 1Ghz on the IFF

Last, those Radar units were on clockword delay, would only be active a few seconds after release
 
there were radar and barometric sensors, there was logic that 2 out of 4 had to agree before setting of the Bomb.

2nd those radar altimeters were based of the existing IFF system already on the bomber, very different frequencies, 10Ghz vs 500Mhz to 1Ghz on the IFF

Last, those Radar units were on clockword delay, would only be active a few seconds after release

Thank you for this info. I ask pardon while I remove egg from my face.:eek:
 
Thank you for this info. I ask pardon while I remove egg from my face.:eek:

No need to.
And if it wasn't a concern, they wouldn't have added the delay before the radar units were online.

They just wanted to be really sure that no false returns would cause....problems.
 
No need to.
And if it wasn't a concern, they wouldn't have added the delay before the radar units were online.

They just wanted to be really sure that no false returns would cause....problems.

Very true. It would be interesting to see the excuses made if it exploded randomly in the air, miles away from a target. Worse if somehow it happened anywhere near Tokyo or Edo.
 
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