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π¬ Re: BLOG 29
1 day ago by ToraDog (
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I like using fuses for my installations, but the limitations that occur should the drive train fuses blow had always concerned my. Black Shoes introduced me, a while back, to automotive auto reset breakers that plug right into a fuse slot. The blow slow but reset after a cool down period, maybe 20 seconds, and allow an attempt to recover my boat. Over here they are available in difference current ratings, usually an appropriate one will fit the drive train.
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π¬ Re: BLOG 29
2 months ago by Roadster700 (
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I use Self Resetting Thermal Trips in my boats, as I know the most likely place that a stick or something will get sucked in to the props is when it's right in the middle of the Lake Heading for the wier.
I get them from Ebay and solder them in to the motor output lines from the ESC. Using them stops frying everything. I normally use 5Amp, or 7Amp Trips (eg. Ebay 163850151824). I use a BEC ESC to power the radio gear and by having the trips in the outputs means I still have steering, and the other motors to get the boat out of trouble. I would like to say I fuse stuff like lights, but don't always. I all ways srinkwrap any joints, and touch wood there's never been a problem. They also sell trip that have a reset button but then you have to get the boat back to reset them. I found the trips I use have saved my models. BTW This reminds me of a joke an electrician friend of mine told me. "Do you know the reason why they put a covering on wires? It's to keep the Smoke in". π π Like
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π¬ Re: H.M.S BRAVE BORDERER
2 years ago by RNinMunich (
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Odd Rowen, I can find Blog 26 but not 27!? βΉοΈπ
Doug π Like
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π¬ Re: H.M.S BRAVE BORDERER
2 years ago by jbkiwi (
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Looks great Rowan, running nicely, and a good rooster tail as well !
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π¬ Re: H.M.S BRAVE BORDERER
2 years ago by RHBaker (
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If the video does not link, it can be found on UTube under Brave Borderer blog 27
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π¬ Re: H.M.S. BRAVE BORDERER
2 years ago by RHBaker (
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Would agree to an extent.
The 3S though allows the motor speed to be reduced so the plane can be controlled. Either way after all the challenges she produced last year am happy with the outcome. My next project is a model of one of the R.A.F. SEAL class, a LRRC which was the last launch used before the R.A.F. Marine branch was closed. Just completed the hull sailing trials so will shelve project until next winter. Will eventually write a blog on it. Really like your Fairmile and am very tempted to build one of those further down the line. π Like
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π¬ Re: H.M.S. BRAVE BORDERER
2 years ago by RHBaker (
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Doug,
Later meant the second or third address which obliterated the preceding one. Anyway, will try your suggestion next time I post several videos. π Like
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π¬ Re: H.M.S. BRAVE BORDERER
2 years ago by jbkiwi (
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Checked out your You Tube vids Rowen, and she's looking nice on the water. I think she is riding more steadily and scale like on the 2s than the 3s. On the 3s flat out she's lifting too much in the stern and digging the bow in on the turn and leaning out plus getting a bit of torque roll (mind you you can always reduce throttle and get a better run time). Will be nice to see vid on a bigger pond. Now that's finished, what's next on the board ?
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π¬ Re: H.M.S. BRAVE BORDERER
2 years ago by RNinMunich (
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Hmm! Don't understand what you mean there with 'later address' π€
So let's try my Sea Scout links and see what happens. (I had taken the precaution of saving the links into a text file π) So here's what I saved last year. "Sea Scout trials, Ostpark Munich, 28th May 2018. Pt1: https://youtu.be/b0BWJ3duzDw First run with a 3S LiPo Pt2: https://youtu.be/oMUlSOaAREM 'The competition'! Pt3: https://youtu.be/zPgYicA0yGw 'Final run', the Bier was getting warm." I find that URL links work best on this site when they stand alone on a separate line, no other characters in the same line. Cheers, Doug π PS: Seems to work OK π π Like
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π¬ Re: H.M.S. BRAVE BORDERER
2 years ago by RHBaker (
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Thanks Doug,
I tried that, but the later address superseded the and obliterated the earlier. Anyway,our experiences seem very similar. Have decided to "standardize" on the 3S. The performance is clearly superior. Will get a longer video on a much larger lake shortly and will post. Rowen π Like
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π¬ Re: H.M.S. BRAVE BORDERER
2 years ago by RNinMunich (
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Hi Rowen,
simplest way with the videos is to copy the YouTube web links into your post. Like I did with the three vids of my Sea Scout trials. Then we can view them simply by clicking on the links. Or copying them into our browser. Your results with the 2S and 3S are similar to my experience with the smaller Sea Scout π Cheers, Doug π π Like
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π¬ Re: H.M.S BRAVE BORDERER
2 years ago by jbkiwi (
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Looking fantastic Rowen, looks like she's all sorted. Can't wait for the video. Nice job. John b
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π¬ Re: H.M.S BRAVE BORDERER
2 years ago by Martin555 (
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Very nice, well done.
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π¬ Re: H.M.S BRAVE BORDERER
2 years ago by RNinMunich (
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BRAVO ZULU, well done that man π
"Suspect this was because of the difficulty in coordinating acceleration, photographer and deceleration." Practise makes perfect Rowen, esp. for the camera 'person'! An altogether very nice job Sir πππ Looking forward to the video very much. Cheers, Doug π π Like
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π¬ Re: HMS BRAVE BORDERER
2 years ago by jbkiwi (
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Bit of torque roll there Doug, skipper might need moving to the starboard seat. Skipper hasn't been on the Schnapps by any chance? -re failure to give way (starboard rule) and collision with tubby yellow boat. A smaller prop might lessen the roll, plus trim tab, and as you mentioned, spray rails. Sounded like the tunefull scream of a 28mm out-runner? I had one in my 36"Maiami with a 25mm 3 blade which did a similar speed to your Scout (with no torque roll) but I temporarily put it back to brushed as I couldn't stand the noise. Also it was useless for on board videos for obvious reasons. Smaller props plus high rev capability give much nicer slow speed control, John B
blade Schnapps π Like
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π¬ Re: HMS BRAVE BORDERER
2 years ago by RNinMunich (
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Pics pics pics !! Even better a vid of the trials please Rowen.
Your results with the 2S vs 3S mirror mine with my Sea Scout trials last year. 2S was adequate to sedate. 3S turned her into a sport fishing boat π https://www.youtube.com/watch?v=b0BWJ3duzDw&feature=youtu.be https://www.youtube.com/watch?v=zPgYicA0yGw I didn't argue π You can always limit the throttle at the TX again, or restrain your thumb!!π€£ Cheers, Doug π PS After my vid this popped up on You Tube . Spruce Goose lives! Magnificent. https://www.youtube.com/watch?v=VgJkfPWyH_E π Like
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π¬ Brave Borderer
2 years ago by RHBaker (
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Canabus,
Hope this helps, Rowen Using the FS-I6X instruction Manual, dated 8/10/2018. This Tx allows infinite experimenting with the various control functions and ultimately reverting to factory settings if dissatisfied with results. After several attempts at setting the ELEVON function (V-TAIL could be similar, but the Tx channels would be different), decided this works best for me. it puts both brushless ESCs on the RH control lever. Moving it up operates both screws in the forward direction and down into reverse. Going from side to side speeds up or slows down the motors, so the boat goes in the direction the lever dictates. This was accomplished by: 1) Page 14/57 Establish the Tx Stick mode, mine was # 2. 2) Considering ELEVON, need to determine which layout allows the Aileron and Elevator controls to be operated by same lever. 3) Use Elevator for throttle (fwd & astern) and Aileron to βturnβ. The Aileron will accelerate the motor on the outside of a turn. 4) Plug Port & Starboard motor ESCs into channels 1 & 2 respectively. 5) Refer to Para 5.10 and set Elevon mode on Tx. 6) Use channel 4 (LH lever side to side) for rudder and Channel 3 (LH lever up / down) for any other function needing proportional control. I am using it for the centre brushed motor. This means that my control levers, which had previously had throttle on the LH lever and rudder on the right are now totally changed. There is also an article in the March edition of Model Boats that explains the concept. motor prop model boats model starboard port rudder pt boat brushless motor brush esc manual brushless brushed motor brushed channel tx π Like
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π¬ Brave Borderer
2 years ago by RHBaker (
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Canobus,
Have not done a circuit diagram yet, but can explain the Tx settings. if that will suffice can write something up shortly. The instructions are fairly sketchy. circuit instructions tx π Like
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π¬ Re: HMS BRAVE BORDERER
2 years ago by RHBaker (
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Thanks all for the comments.
The weight is rather more than expected, but attribute it mainly to the centre brushed motor/shaft/screw arrangement. Hoping to get some pictures later this week and will post them. The extra weight does not seem to impede performance, so not that concerned. π Like
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π¬ Re: HMS BRAVE BORDERER
2 years ago by Martin555 (
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Hi,
A very neat and tidy boat. I made one of these many years ago but nowhere near to the standard off yours. Excellent work well done. π Like
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π¬ Re: HMS BRAVE BORDERER
2 years ago by jbkiwi (
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She's looking very smart now Rowen, waiting for the video when you finish. I wouldn't worry too much about the weight as you have the width in the hull. My 36" ASR weighs around 6.5lbs all up but has a very narrow hull (tapers to only 5 1/8" on the waterline at the transom) and it planes just like the real thing, with the 2 28-45 2000kv in-runners, and 1x 2s 2200mah lipo per motor which gives me about an hour plus 'play time'.
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π¬ HMS BRAVE BORDERER
2 years ago by RHBaker (
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Thanks Canabus,
Guess will not know if I need to do something like that until we are back on the water in Spring, but food for thought. Rowen π Like
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π¬ HMS BRAVE BORDERER
2 years ago by canabus (
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Hi All
The boat had the rudder completely vertical to start with and that is the problem. With the rudder vertical the boat pulls the bow down in the turns which makes it sit up on the chine. A planning hull attack angle is about four degrees to the water, but these boats like an angle of about six degrees. The leading edge of the rudder and the angle of it governs bow lift or dip in the turns. Also the balance point of the boat is as important as the rudder setup. Canabus hull rudder chine bow π Like
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π¬ HMS BRAVE BORDERER
2 years ago by kevinsharpe (
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Hi. Been watching this build progress and the discussion. Having seen the recently posted pictures of the rudder installation it appears that your problem is probably caused by the rudder aspect. From the photos it appears that the rudder post is not mounted completely vertical. Thus when the blade is turned by the servo this will create an aileron or elevator effect on the water flow. Things behave very. Much the same in water as they do in the sir.
Regards Kevin build rudder servo rudder mount π Like
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π¬ HMS BRAVE BORDERER
2 years ago by canabus (
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Hi
A few pics of my modify setup, no pics before hand. Moving weight fore or adding ballast works better than wedges. Only tested the boat by myself and I gave it a real workout. Motor 3639-1100kv, 60A ESC, 5800mah Lipo and 37mm 3blade prop. A 40mm 2blade works better and uses a bit less power. Rudder blade size 30mm across the top, 22mm across the bottom, 45 deep and the shaft 10mm from the leading edge. Sharpen the leading edge and the trialing edge flat. This catches are air in the water and send it to the surface. Canabus ballast motor prop lipo rudder weight esc prop shaft π Like
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π¬ HMS BRAVE BORDERER
2 years ago by BOATSHED (
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Yes also, I would love to see pictures. Very interested . I even went as far as fitting small wooden wedges on the rear of the under side corners of the hull. that was all trial and error from other modelers suggestions on the pond side. Prop swaps and all sorts.
prop hull model wood wooden wooden model π Like
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π¬ HMS BRAVE BORDERER
2 years ago by canabus (
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Hi All
I have finally fix the boats turning problems by racking the rudder forward 8 degrees and making a new rudder blade with the leading edge straight. The bow only dips slightly on the turns. Canabus rudder bow π Like
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π¬ HMS BRAVE BORDERER
2 years ago by canabus (
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Hi
I am working on a Precedent Perkasa 37" and I added two sets of double 10mm magnets to the front of the wheelhouse and one set at the stern. I can lift the whole boat with battery by the wheelhouse. I do not think it's going to come off !!! Canabus boat house stern precedent wheelhouse battery π Like
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π¬ HMS BRAVE BORDERER
2 years ago by RNinMunich (
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How true, how true Rowenππ
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π¬ HMS BRAVE BORDERER
2 years ago by RHBaker (
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Hi Kevin,
Yes I did, because of the complexity of the shape that was another technique that could have been used. I decided to use glass fibre as the cowl is around 7" wide and 3 1/2" deep. Considered a draw of that depth was beyond my skill and facilities with plastic sheet. if they are available it would have been a good approach. The more I work with glass fibre the more forgiving it seems to be. Not many mistakes that cannot be disguised or corrected! Rowen glass fibre glass fibre glass π Like
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π¬ HMS BRAVE BORDERER
2 years ago by kevinsharpe (
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Hi
Did you consider building the superstructure using plastic sheet as plastic would bend around the curves. Regards Kevin build superstructure π Like
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