The old line of sight calculator (1.25 times the square root of your height in feet gives line of sight in nm).
The Berry Head VOR (aircraft nav beacon) is 215' (66m) high and you were 453 feet up (138m) so the two sums are 16nm plus 26nm equals 42nm so you're right on the limit of line of...
Better still, this thread links to the service manual which, on page 95, shows how to replace the core plugs. It suggests replacing as a pair if one has gone.
Yanmar 2GM20 Service Manual PDF
I would use a new core plug and Hylotyte or similar. Loctite is thread locking compound, Hylotyte etc is for sealing gaskets etc.
Hylotyte® Red 100
It's usually a freeze that pops core plugs as my early experience with Ford Cortina engines taught me. Check your antifreeze mixture at the same time.
A question about snubbers going slightly off tangent. At home, I use a bridled line with a chain hook on the end but as I deploy it, I need to keep tension on it to avoid it falling off the chain in front of the boat.
On a holiday charter in the Whitsundays recently, the charter co had a...
Many people don't know you should pull out all the cable on those vacuum cleaners with an internal drum as the cable will heat up enough to melt the outer sheath and stick the lot together. For shore power as long as the coiled cable isn't at the bottom of a locker with a load of lines piled up...
Hamble School of Yachting definitely do own boat and will put together something for you. As jlavery says, you need it done under the umbrella of a school. HSY prob don't have it listed but give them a call. Any problems, I can PM you an instructor who does own boat stuff and will work it...
I had a chat with some sailing buddies before. On the basis that the sailing area & environment is new to me & full of shallow reefs, despite the best will in the world, the boat could swing into a reef at night damaging the rudder. The insurance premium gives me peace of mind the holiday won't...
For lifejackets, BA's recommendation is you print their page and place it with your lifejacket in the event your suitcase is checked in your absence. There is no need to second guess anything, BA's (and I'm sure other airlines) website has clear guidance.
The UK.gov website has more overall...
And there you have it, the very people who are employed (albeit indirectly) by the airlines to protect their assets are making up their own rules. I've experienced it first hand many times hence my blunt comments earlier.
And they should know the national rules, set by the CAA that the airlines...