Baking soda triggered some old memories, who else remembers the little plastic subs we used to get in Cornflakes boxes? 😉 I once toyed with the idea of making a bigger version, ca 10 -12 ". more important 'stuff' got in the way. Forgot all about it .... until now 😉

Yep, off the bat I could imagine a couple of ways of triggering them; there are loads of mini pressure switches on the market, or a simple diaphragm at one end of the can coupled to a micro switch or mechanical trigger.
Adjustment would be very sensitive due to relatively small changes in water pressure in the first foot or so of wet stuff. Any deeper would be a waste of time, unless you only want to entertain the fish😲
Might also go off on the surface if the can hit the water diaphragm first😡
Whatever, lot of work (and expense?) for a one way trip🤔
Anyway, with my 1/72 scale DCs, approx. 12x5mm, I would need to resort to nano technology. But we should never stop dreaming!
I've seen model patrol boats launching solid fuel missiles from the stern deck so 'Nothing is impossible' - that's maybe why I drive a Toyota😉
Cheers Doug 😎

oh the memories of fighting my brothers for the subs I think the five of us must have lived on cornflakes (other breakfast cereals are available) so we could have one each ,if memory serves I think there was also a baking soda stingray ,not sure if this was a freebie with cereal I seem to remember it being bigger.

Cheers Marky

很好 Hen Hao or as the two Ronnies might say 'Velly good'. Damn, there i go again, politically incorrect or as someone once said 'politically immature'.

Thanks Allen..👍.. it is a splendid vessel.

Ah, the Proboat Ragazza. I'm going to save up and get one of these. Here's a lttle one from the same stable... The Proboat Westward 18

Thanks Guys.👍

Lucky Find!

how you know!!!?

😉 I knew that must come!
30+ years wandering around the world to various navies and shipyards.
Including intermarine and Fincantieri in italy. Two of the most prolific builders of fast ferries, huge cruise ships. As well as all sorts of naval vessels from fast patrol boats to ski-ramp aircraft carriers. Similar to the old RN invincible class.
Somewhere in my vast and dusty archive I have the GAs and specs for a new (then!) fast ferry design from intermarine.
Used to like visiting these two; intermarine in Sarsana, just south of La Spezia at the south end of Cince Terra and north end of Tuscany and just round the corner from the Carrera marble quarries.
(That's where the name comes from, not Porsche or the model race cars😉) Also Fincantieri in Genoa further north. Lunches and dinners were good 😜 Cheers Doug 😎

As they say oop north in England.
Ay up Baggie, tha's got some reet nice boating locations around you m'laddie.
They look cracking places to sail yachts or motor boats to your hearts content. We have to fight for any piece of water round here with the anglers, golf courses, and private lakes.
I'm getting very envious 😊
Best wishes, Dave W

Sloop Gypsy has been started today.😎

I have a Gypsy Sailboat, an old Comet kit still in the box. I hope to get it on the water next year.

Even the older version, 27mhz is great fun, have converted mine to use Futaba 2.4ghz, same motors but 7.2v buggy type battery

Who does at 'our' age? 😲
The park looks great. 👍 Ta for the photos.
Did you win the race??
Cheers Doug 😎

Of course he won Douglas. He's miles in front. Ya can't see the others, as they're so far behind.
Nice photo Baggie. Eating park looks great. Another reason for visiting friends in Naaaarich 😀
Best wishes, Dave W