11. Yes, David is correct. Can you identify the (animated) engine?
17. The pronunciation is correct - one more silent letter needs to be added.
Nic Berry is indeed an answer, but you seem determined to put him in the wrong place!
In 28, the capital G was not (for once) a typo.
Surprisingly, the Wikipedia entry for Stewarton does not mention the product for which it was known, but Google throws up other pages that do. The second half is a musical reference.