Prop was a good score. Very impressed how well Renco is looking, you are going to get a lot of cheers when you get home. Make it the best you can and enjoy less repairs when on adventure. I build submarines and want to get a steel trawler to tinker with when I retire.
In 1974 I was on a 52 ft trawler in Bundy,, hit something and bent a blade tip it was a 4 ft , 4 blade prop behind a 250 hp Cummins, slipped at Kepples Slip and the prop went to Maryborough ,, came back as good as gold,,
@@kylestephenson3004 - It's an issue with the camera, synchronizing (or, not) to the monitor - It only happens, through the camera - not in real-world experience. (There's nothing to be "fixed"). The only thing I could demonstrably compare it too is, to blink your eyes at varying speeds, to a blinking light; sometimes you'll see the light on, sometimes, it will appear off - or, you may catch it, between cycles, as dim (you won't see a steady rate of light, flashing) - Both, the camera and, the monitor (display) are working in, fast _on-off_ cycles, that the human-eye generally, does-not perceive - if, the camera is _'shuttered-open'_ at the same time the display, is _'blanked-off',_ it will be dark - this happens anywhere around 30, 60, 90 or faster, cycles, per-second.
Good job in discussing the props, you might actually get some reduced fuel consumption and torque from the prop change when implemented. It sounds like it is basically a one to one prop ratio. On a large inboard ski boat we had a 13/13 and with the boat loaded with a heavy skier behind you could pop them right out of the water and be up to 40 mph in a short stretch planing.
Hi Stu, I see trawlers using prop nozzles for gaining thrust and fuel saving, maybe with a bit of research one could be a nice addition to Renko, Kerry, Iluka,NSW.
Previous owner might have had it tweaked already? Prop manufacturer probably can help with how well the prop would work for you too. Don't think you could get much larger without hitting the hull or getting too close for comfort.
"Film from much further away." Now, why didn't I think of that? It will work for all sorts of jobs, I bet. BTW, what's the leather book on the console...ship's log?
I have used Propspeed a few years ago, Two boats and myself in the yard went in on a kit as it is expensive. My boat is a converted fishing boat 46 foot our home so it can sit for 3 or four months inactive during our nasty Pacific winter. hull speed 7 knots cruise 9 knots full on but pushing lots of water and using 40% more fuel. Back to the Propspeed. I swing a 34" prop with a three to one gear box so with a 1500 RPM motor speed the prop is turning 500 RPM. A 6-71 GMC. The reason for all these back calculations is that I found with the propspeed the prop was not turning fast enough to get any barnacle growth relief. I live on the west coast of Canada in the Pacific. Some folks paint there props with bottom paint, which can cause problems with the copper content, For the past 6 years I have been using Zinc spray in a can. Not cheap at $45 a can and my prop takes one and bit cans., and the barneys fall right off with a few rotations of the prop. Under the right conditions the propspeed could work IE: a fast turning prop...just not for me with my slow old craft.
!!!! NEW 4-BLADE PROP !!!!! My best friend's Widow is looking to sell at a bargain. If you have any interest I will get you specifications. It was very expensive and custom-made for boat and horsepower similar to yours!
Stu always seems to have bits off, does anyone know did he secretly sign a deal with bandaid and he just is constantly doing clever product placement? I notice today is the BA1541 Fabric.
Have you ever thought about having you prop cupped to make it way more efficient ?......l have been in racing boats a very long time.....Most of the time l had my props double cupped chopper props....Just saying....Thanks
Hey Stu, I just wanted to let you know about another channel I found called: The adventures of Cheryl and Paul , another one located in Austalia. They just purchased a scrapped Trawler to refurbish, i thought you might be interested.
i think that project brupeg is gonna loose a lot of audience as most will be watching them to see them working on the vessel, and when on the water it will be basically a vlog, i would always watch the odd life crafting but since they have launched Odd all they seem to do is a vlog and thats not one of my top things to watch, vlogs are vlogs and they can get very boring what dangar stu does here is good as he always seems to have stuff he working on so naturally he will create and maintain a decent sized audience. if the brupeg channel goes to vlogs i think i wont even bother watching it and im sure i aint the only one out there that thinks the same.
200k subscribers. Congratulations Stu. Another great video. Renko’s looking great. Really looking forward to seeing her dropped in the water and steaming north. Thanks for a great start to the weekend.
So, um, Uncle Cosmo also liked to wipe down with a rag after he polished the shaft. Well, I mean, there's no real way to stretch that out. That's what he said. Nevermind. My granddad was in the RAF back in the day, and one of the things he told me, and practiced his entire life, was, if you've got a spinny bit and you want it to spin well, you have to paint a spiral on it. Painting spirals on spinning things makes them spin even quickerer because they know which way to do it right from the start. His Hurricane had a spiral painted on the propellor nose bit, and that span even better. His Hillman Imp had spirals on the hubcaps and they spunned quicker too. Or at all, really, any suggestion of rotation off a Hillman's wheels is an improvement over stock, let's be honest. His food mixer was spirally, his record player all heliacal. He even had spiral bedsheets. Not certain why. So, anyhoo, if they sell that special paint in different colours, try getting two and spiral that splosh-go-shove up. It's like painting something red, it absolutely scientifisually is then provably quicker, especially combined with the universally understood stripe down the middle that lets the air know to go around that bit. I know a red Renko would maybe look a bit wierd, and I guess overall speed is less important than mileage, I'm just sayin', spirals on the prop, stripe down the middle, red paint scheme = maximum top speed. You'd be wanting some hydrofoils, too, at that point. Handy for those high speed trips between Montevideo and Denham when the bilges get a tad arctic, if you know what I mean. Denholm Elliot was named after Denhem, as most people know, on account of his mum and dad needing to remember where they parked the Amilcar when they were there in '21. This was prior to the invention of spelling, or at least, prior to the adoption of spelling in the Great Strayans, although many modern scholars suggest that this seminal linguistic event has yet to occur across the Big Sandy Blob. I, of course, dyzargry.
Second that with austral, I called about my ski boat prop and they gave me all the info I needed and had a chat about the boat and filled me in on some stuff I hadn't thought of..... awesome bunch of people
Of what is the prop made? Could that prop be X-Rayed to look for hidden cracks? Renco is now a beautiful vessel! Thank you Stu and to all who made her so. Godspeed to all who sail upon her. RL Buffalo, NY USA
The race against time begins as Dangar Marine hits the water sooner than everyone expected. Stu leads the charge in a last minute propeller change out with new materials to work with and a deadline that won't move. Emotions soar as Stu longs for open water again but must leave good friends behind. Join in all the adventure as Dangar Marine travels the globe in a newly refurbished Renko that motors as well as she looks.
I love these simple explanations breaking the barriers to understanding. Thanks for that! Can't wait to see the launch. Yep when yer come back swap the props, if for no reason to get rid of that welded nut, and maybe get a zinc on the shaft. Safe travels
The Propspeed Clearcoat on the prop has to be applied thickly enough to flow out and brush the drips as it levels out to give you maximum film thickness for better durability and protection.
I'd assume that prop recommendations/calculations are mean averages, not inclusive of how well you engine runs and what the wanted result is, not to mention a Cummins should be a much slower prop because the *cough* engine isn't made to create meaningful torque
Hahaha film from farther away,piss funny,the hits keep on coming,you’ve done a bloody mammoth effort Stu,cheers for the vids,the old girl will have a good life under your hand,big shout out to Adrian for the donk work,did he start his channel yet?safe sailing Stuart.from newie.
Foam rollers tend to absorb a lot of product wouldn’t use a foam roller for that reason. I’m working my wee boat at home ,it’s would be easier to do a full bathroom renovation .😩
That might be because the engine is a 2stroke. At any given rpm it sounds like it spins 2x the speed of a 4stroke. It doesn't. It just has 2x the firing events. That's why they call them screamers. And that's why they might seem (or appear to be) undergeared when in fact they are not.
Very pleasant just sitting here with my Boston lager watching you work, Stu. Seems a smaller diameter higher pitch screw would give you less power at slower speeds, but higher potential top speed. I would like to add that I know absolutely nothing about this. Looking forward to the wet.
I was following the math quiet well. Then you switched to inches. Could’ve just started in inches and it would’ve been easer for me to follow! My brain thinks in inches; however, any measuring system works if done accurately. Nice piece on prop. measurements, and prop. speed! What’s up with that nut????
Rule of thumb displacement Hull diesel like your Detroit is a “square” wheel. Diameter and pitch the same. Variance would be a few inches more or less pitch. Taking two inches out makes a noticeable difference with more power reduces boat speed . Adding a couple inches gives more speed less power and in many cases prevents the engine from turning optimal RPM. Only way to know for sure is test on the boat. I like the engine to be able to obtain maximum rpm and cruise comfortable typical load with couple hundred RPM less. If you plan to pull a big load go for less pitch. Tugs often have half pitch compared to diameter. High speed plaining Hull could have diamater plus 25 %
I am new to boating but was lucky to find your channel, watched many videos and learnt a lot of valuable techniques Who can I contact you privately I have a problem with Honda bf130 need your expertise if possible
Well, it looks good from afar, but it's far from good? :P Thumbs up to Astral for the great customer service. I'm looking forward to seeing the results with the slightly bigger but harder prop.
I notice has nothing to do with the video but I have a 2010 E Tech 150 check engine light came on when I was trying to leave the dock the other morning it shut off and came right back on any ideas the ideas as I'm a commercial Is lobsterman this is killing me!!!!!
PROP GOLD IS THE SAME FORMULA AND HALF THE PRICE .TRY IT WORKS JUST AS WELL .SAME ENGINEER TOOK HIS FORMULA AND SELLS IT CHEAPER . I HAVE USED BOTH THE ONLY DIFFERENCE WAS I HAD MONEY FOR BEER LEFT OVER
you really also with your channel is have at least 2 or even 3 a week as one a week videos you will sort of make people stray away, i see the battleship new jersey yt channel has a video just about every day and they will always maintain a decant audience same with project brupeg they really need to have more videos, you wont grow very quickly with single weekly videos, and also i think there has to be a general interest in pumping out videos if say someone made a video once a month or less then they wont have much success.
If you are curious what the wipe is, get someone to eat it, then the hospital will read the msds to find out what they are dying from before they list it as a covid death
Two bits of congrats, Stu... First, for reaching 200K subscribers! Well done you! It's a demonstration of quality workmanship and superb video. Second, for a fantastic refit, well documented in the inimitable Dangar Style, and a lovely output. She looks gorgeous, and a newly-painted boat always runs a little faster, cleaner, and smoother. Next time you're up in the Southeastern US, give us a hail, and we'll meet you offshore for a beer. Fair winds!!
