The Tamar lifeboat was the first to be fitted with an integrated electronic Systems and Information Management System (SIMS), allowing the crew to operate the all-weather lifeboat from the safety of their shock-absorbing seats.

When crashing through the waves, the Tamar’s pioneering seat design absorbs most of the energy on impact, reducing the strain on crew members’ backs.

The Tamar is designed to be launched from a slipway – her mast and aerials can be lowered to fit inside a boathouse – and she can also lie afloat.

Tamar class lifeboats have gradually replaced some of our Tyne class lifeboats that have reached the end of their operational lives as part of our plans for a faster and more efficient 25-knot all-weather lifeboat fleet.

Following a tradition of naming our modern lifeboats after rivers, the Tamar is named after the Tamar River, which is 50 miles long and forms a natural boundary between Devon and Cornwall.

Second test was slightly better, using the aluminium spiral cut universal which came with the jet unit. As you can probably hear, it was horribly out of balance (even with cable ties to reduce it). It was not even drilled centrally and the spiral is right hand when it should be left hand, (like a spring twisted against the wind, it wants to deform). Slight improvement in speed on the first test (no slip this time) but the noise was horrendous.

Have pulled the jet apart and found that the 3 blade prop is around 1 mm too small for the hole, causing cavitation (see loads of bubbles in the jet stream) which is causing loss of thrust. The prop is the wrong type as well, with rounded blades, so I have modified a larger prop with more pitch to fit snugly in the unit to hopefully increase thrust. The shaft is also wrong, with a flat cut almost half the diam and carrying on through the bearing, allowing the grease to fly out.

I actually saw a Chinese site on Al Expr stating that "some dimensions on the product may be different due to the number of machines and operators involved in its' manufacture," SERIOUSLY!!??? their quality control must be utter crap and the operators not skilled enough to eat their lunch😐 Why bother having a dimension at all?? Little wonder nothing fits properly.

Unfortunately, most model shops sell the very same stuff, unless you want to shell out muchos dolleros for European stuff. I have just ordered some 4mm silver steel to make a new shaft, so a coupling or silicone tube will fit better. Also ordered some solid connectors to try. Vibration is wasted energy so it needs to be eliminated. Hopefully the mods will improve things and allow the motor to run on 4s rater than 3s. Worked out that the motor is only 1200KV, so it's only doing around 13,000 rpm under load. Probably will need around
18,000 rpm for proper performance. Onwards and upwards (or forwards as the case may be.😁)

Sorry about the blurry vid again, but my camera lens is knackered.

Of all the data files on the Crash Boat I have not ever seen any details/ drwgs for the vehicle specifically used to transport the Crash Boat types ( Ie the British Power Boat co ) had transporters for their craft. Anyway I enclose a picture of the OFFICIAL English designed TRANSPORTER vehicle for the Crash Boat and a photo of verification as modelled by Peter Dimberline. I have kept my model stock standard, still have the original plastic red Graupener prop of old I think it is a 30 with a nick or two. Soft copper brake tubing pipe (1/8 I/d) is only around the head and one of the inline exhaust resonators has a water tube outer casing to cool the exhaust piping and inner tube gas temperature which takes out the energy/heat of the exhaust gas and dramatically reduces noise. Hope my hints help .All the best Lyle.