.... never judge a book by its cover
Sorry, but I don't think it is a good idea to put up a standard letter. That is just seen as a petition by authorities and like it or not carries little extra weight. Such is the democracy we live in.
The Seaplane Association have provided a lot of useful facts on their website - we would rather that people did take the time to read through it and make their own considered response. We do not believe that a thousand identical emails is a good idea.