Lets drop a A-Bomb just to see what happens to a blimp....
(http://i248.photobucket.com/albums/gg169/my70gt/airshipVAtombomb2.jpg)
Blimps were used a lot back then. Probably needed to know the effects as we would now on current .....stuff....LOL.
Just seems so silly a fleet of lighter than air ships against Nukes............
I think I see guy's holding ropes on it.I doubt they can talk about it today.
They were probably mostly to hold stationary sensors for weather information, wind speeds, g's and impact numbers more then anything.
Don't forget that both gemans and puppiess sent un manned bombs over seas with altitude based triggers.