In article ,
Hamisha3 wrote:
Not to take anything away from BarnesWallis but why does a simple torpedo not
do the same as the boune bomb, detonate against the dam wall at a pre set
depth?

The simple torpedo runs into a simple anti-torpedo net before it reaches
the dam. The bouncing bomb skips over the net. The germans had thought
of torpedo attack against the dams and laid nets. The bouncing bomb,
it may fairly be said, must have come as something of an unpleasent
suprise.

--
Andy Breen ~ Interplanetary Scintillation Research Group
http://users.aber.ac.uk/azb/
"Time has stopped, says the Black Lion clock
and eternity has begun" (Dylan Thomas)