Hi Al,
Trust me, I don't want to get in an argument about either point. Let me share with you what I found...
The original US "Union Jack" was the Don't Tread On Me flag. I agree that the British refer to their flag as the Union Jack. However The Navy Jack, Jack, or US Union Jack is what we both agree on. I think the terms are used interchangeably. Here's a Navy Jack. It clearly is labeled US Union Jack. I stole it from a military history web site. Bottom line I believe we're both right.


I agree with you that the 109 had a mast coming out of the factory and when transferred to Panama. I'm sure it had a mast on arrival in theatre. In my opinion sometime after arrival in theatre the mast was gone. If you look at the photos on Gene Kirkland's web site (http://pt-king.gdinc.com/index2.html) you'll find a very good story about the history of PT-109. The mast is not visible prior to JFK or under his command. No telling why but many boats ditched their masts until radar came along. I'm familiar with the photo in the book you referenced. It's labeled incorrectly. That is PT-105. Anyway, here are three photos of the 109 in theatre. Some say the mast is folded but there is no evidence of it in the Bollard photo.
PT-109 prior to JFK

PT-109 under JFK

