@@CozyRC yes so many runs in one year I think I have more then 100 runs so yes well deserved ,4s 5s 6s same motor, esc, different props many crashes 😊what a great boat it is but yes with good advice receive 🙏
I have been calculating from that tip you gave. It should get it around the 100mph with my current prop (which is not super stable) and if it stays on the water. Don't know if im willing to risk that. But its an interesting and tempting idea that it might be possible! Even with a budget motor...
@@peteroosterhoff8850 there are many things to take into account, even the driving style, I always start with fewer cells and then go to the maximum setting
Nice... My goal is bigb his record. Then i'll stop most probably. I crashed previous (second) run and got some damage. Its a huge risk every time i take it out for a speedrun and not planning to run it every time on the limit.
So I dig a little bit about " bigb" record 91 with a flip 🤔 Check this guy record same boat like you ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wvbPr96RpUE.htmlsi=TbEQnonh93fDq98w Much better setting the boat👌
@@daiciuapostol79Yes your definitely right! Thats how it "normally" should run... Found some specs earlier video. Also sss but 1800 (not 8s rated) motor on 8s and looks abc 2 blade. Even have that same motor in other boat... My boat ran way more stable with x647, but cant get these speeds. It is interesting, but not sure if want to go even faster... Every crash is still a huge risk. Would feel more comfortable doing it with completely new hull which i can reinforce to my likings. My old v1 isnt as strong as newer one....
@@peteroosterhoff8850 on SAW pass you can use 1800 kv and yes it use a 45 mm 1.6pitch aluminium prop similar with ABC,yes pushing to the limit are a bit scary
@@peteroosterhoff8850 thank you, hope for a better one tomorow, meanwhile ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-M0lbVZa0rIk.htmlsi=EnGWAKGcxmyPyXLA 🥳
So, you already have some decent knowledge about electronics... 👍 Btw, did 88.2mph today still with 60c packs. Also crashed, need some repairs but nothing major. 90 is coming...
Ran today new pb. 84mph and not end of it. My cnhl are defective so had to run lesser battery. Also without shortened rudder...! Both measures apart 6mph difference (but not together) so there is some left, just dont know how much...
@@daiciuapostol79 yes 8s, 1650kv motor... Next time i will take somebody with me to film. Hopefully i get this week a replacement lipo. Then i will first run it stock rudder, and then probably shortened one so i know the difference. Bigger pond helpt a lot. So can go easier on the throttle. Didn't crash one time
@@daiciuapostol79 think i call it quits after these runs. Ironvlad told me his record was 91, that would be nice. Also considering i have cheap motor, not as good lipo's, 200A less esc i would consider that as an achievement for myself. But technically speaking there might be more room. I ran almost 4min without overheating, so a single saw run with bigger prop might be possible...
@@daiciuapostol79 yes, was very, very lucky i guess. Lipo had a punctured cell! Looks like it reacted itself closed again. There was some black molten sandlike spot were it was punctured... I closed it and it lays outside now. Later i will remove the cell, in this case easy because its one on the outside...
Ive read reducing diameter (blade tips) makes them better (buy 1 size bigger than you need). Can't tell its true. But did it with my 3 blade, but also changed bottom hull... Picked already up more than 10kph and was not trying to beat my pb since it wasn't my fastest prop and it was my first run after changing things, so i was very surprised! Think both contribute to better speed, but keeping in mind prop is reduced in size that normally would cost speed. Something you maybe could try with a prop (not your best off course).. Take baseline and then reduce tips...
@@peteroosterhoff8850 thank you, I know about these little tricks, but I just clean the hub and the blades well of the casting marks without changing the shape in any way, then I sharpen and balance as best I can
@@daiciuapostol79 well, thought i'll let you know since you try to set speed records for yourself. I was totally surprised. Didn't even run my shortened rudder blade which made with other prop about 6kph... Considering i wasn't trying, i think it it save to say both changes would make about 15+kph. But bit scared now to try now. This abc (1817/23) makes boat definitely less stable than the x647. Have to be more subtle with throttle and therefore need more room to run it... Went yesterday to look for new spot.
@@peteroosterhoff8850 I think 80 mph on 6s with a wood 100% DIY boat it is more then enough plus the boat already take some big crashes and survive. My goal now it's 70 mph on 4s,I'm at 66 mph so I have this 3 props to try 1915-17'45' 1815-17'45' 1621-23'38' same setup TP4050/2350 kv ztw 200A
77 is fast for a little boat like that that's set up right there you better remember everything you did and check it twice I understand the water was pretty and clear and race water you wouldn't be going that fast it'd be a lot choppier but yeah you write that one down good job
@@CozyRC Yes but not fast enough 🤭,I don't know what else to try to beat my PB🤔I'm already on a knife edge with setting up the boat🫣 Thank you for your support every time🙏
again I ran a hydro propeller on 4s, the battery 1 cm further forward to compensate for the lift of the boat and trimtabs 1 mm above the boat line, the rudder blade straight, the water pump because it is very warm +28°C water temperature, risky setting but everything ended well I think, the boat constantly runs +100 on 4s,goal 110 kmh maybe with new 4s battery
for me it's hard to tell the difference just from the sound of the engine, yes a propeller for hydro I think than for a vhull, it cavitates a lot when starting but when it gets up everything is ok except for the jumps that were due to the small waves created from the previous passage it seems that with this propeller it is very sensitive to these waves, but it seems promising at least on 4s with 6s to much lift maybe different setup on stinger
@@daiciuapostol79 The rpm seems to drop a lot from cavitating to 'grip'. In combination with your comment that it already destroyed esc's and a motor, I wouldn't use that prop on a V-hull. Only very light running hulls, who can take the prop load. What was the speed on 4S?
@@daiciuapostol79 48 hi rake i never tried, but know they need more amps from my smaller props. Possibly a bigger esc drops temps bit, but its still a high kv motor that probably runs near its limits so it will run high temps no matter what. The speed your running now is really good on 6s in my opinion...
@@peteroosterhoff8850 I whant +135 km/h.from this setup but the boat still not set perfectly,wether hear is so hot water have already +28°C In the morning not best for Speedruns
@@daiciuapostol79 wow. Were having around 28'c air temp today. Water don't know, but i guess its maybe like 16 or so since these are the first decent summer days.... And i have no boat to run since i was working on it and have no spare time at the moment... 😢
Yes no PB today,4s 105.106.101 km/h and on 6s the prop it is to much 124. 125. 126 km/h and yes afther the first pass I saw the power and I didn't open full on second and third one
Those wooden boats are strong the whiplash and backlash I had both wood flipped, hit other boats, the bank you name it and still ran .......nice run boat is fast and smooth good job 👍
Yeah sometimes when you just wanna cry when you lose a prop cause a lot of times you spend a lot of time sharpening balancing balancing and balancing and polishing and by the time you get done that prop is not cheap anymore sorry brother
Yes is bad when happened. The propeller was second hand from ebay Germany one blade was quite damaged, I really spent a few hours rebuilding the propeller it was quite difficult to work with the titanium propeller.
