Barnes Wallis and his inventions

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Across
  1. 2. The largest non-atomic bomb used in WW2
  2. 6. the type of bomb the Grandslam was
  3. 7. The name of the bomber Barnes Wallis designed but was declined
Down
  1. 1. One of the occupations he was known as
  2. 3. The place where Barnes Wallis was born
  3. 4. The rank Barnes Wallis was in the RNAS (Royal Naval Air Service)
  4. 5. The target for Barnes Wallis' surface torpedos