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>> Home > Tags > prop

Billings Sea King refit by Wingcoax Chief Petty Officer   Posted: 1 day ago
I have replaced the original nylon props with two brass of slightly larger dia and pitch. Using both sticks on throttle it should be very manouverable

Billings Sea King refit by AllenA Admiral   Posted: 1 day ago
The speed 600s should be great. I have the original Como 480s and it went well. Was much improved when I made sure the props were contra-rotating. I know, Rookie mistake but then I am still a Rookie.

Hobby Engine 'Richardson' Tug Upgrade by NPJ Commander   Posted: 1 day ago
Having to clear up before going away for a while. Table top to clear and case to pack. I have tried to load a small video, my first one, but this is my fourth try at uploading. I would show that, thanks to the help of so many of you, I have made a trial setup of the sound unit in the Hull using the exciters. Had to have a go before I left (spoilt Brat). It works! Happy with volume, even with decking off but volume control only half advanced and can function horn separate to engine sounds. Dave M and Doug to name a couple have really helped me through to this point. When I return, I will install properly and take images as this video does not seem to want to play with me. Next challenge...the Esc/Mixer Cheers to all. NPJ

And......! by RNinMunich Fleet Admiral!   Posted: 1 day ago
Me too!🤔 After two piles of matchwood and one fly-away I started building my destroyer - and learned to swim properly 😉 Still toying with the idea of electrifying my old Simprop Zaunkönig though. Doug 😎

Lindberg CC Constellation "Lady M" by Brightwork Sub-Lieutenant   Posted: 2 days ago
My CC Constellation I used the stock propellers worked well

Twin motor control problem by reilly4 Lieutenant   Posted: 2 days ago
Another thought - The main difference between the bench and the water is the load on the system - ie increase in amps. This load may cause the reduction in signal and into failsafe? What size propellers are in use? Maybe a test with smaller props. I would also test without the BEC.

Twin motor control problem by Berty Apprentice   Posted: 3 days ago
Hi John I think its time for the bath test......half fill motors with model held up in air to make sure motors are running correctly.....lower model half way into bath props half in half out of water.... check motors still running correctly...then fully into water....motors must still run correctly.....they can't reverse when they smell water !.....can they? Can we see photo of props and rudders....the solution may lie elsewhere I love this problem it's a good un !l Berty

MFA TORPEDO 500 / BATTERY INFO by jarvo Fleet Admiral!   Posted: 3 days ago
Hi Mate, welcome it the forum, the motor and prop seem ok, a general rule of thumb is prop diameter less than the motor, so you should be ok with this. Your thoughts on batteries, a pair of 2s or 3s lipo's 2200mah in parallel should give you 30 - 40 mins runtime, more if you are kind with the throttle, remember that you must have access to remove the batteries for charging!!! you will also get a reasonable turn of speed but the hull design won't go fast, they are cruising hulls not deep V speed hulls, when testing check for heat either the motor or the ESC, show some pics and lets see how you are doing Mark

Twin motor control problem by John Fleet Admiral!   Posted: 3 days ago
Hi Berty, the props and direction of rotation are correct. The motors only rotate in one direction when in the water. They are fine on the bench. John,

Twin motor control problem by Berty Apprentice   Posted: 3 days ago
With twin motors,that usually run in alternate directions...I e. One anti clockwise you need 2 different anti etc...are you using the correct props ?

3 x Brushless Motor control? by RNinMunich Fleet Admiral!   Posted: 3 days ago
Exactly👍 It's the control / operating principle which counts. You just need the appropriate ESCs for the type of motor you are using. I agree that TX mixing often has limitations. Maybe because they are designed for aircraft!? Doug 😎

Varnish by onetenor Fleet Admiral!   Posted: 4 days ago
Try polishing the varnish once it is good and hard. Use a good polishing compound as used on cars and plenty of water don't use an angle grinder they're too fast and will burn the varnish.You might be able to sort out something using a Dremel type tool, but again not too fast, to get into the smaller spaces on deck etc. It is possible to do it by hand but takes longer.Done properly you get a finish like glass. A lot of car painters rub down wet first with very fine paper then do the polishing. Go to a car painters and watch them and ask them to show you what they use.Really educational. You could learn lots. Cheers John .

MFA TORPEDO 500 / BATTERY INFO by al2612 Seaman   Posted: 4 days ago
First attempt at a full scratch build, a 32" Downeast / Lobster boat style hull in ply, to be built to my own design as a picnic / fun boat. Have acquired an MFA Torpedo 500 and a 40mm 4 blade Raboesch prop, 175 series I think. Hoping to run direct drive. Any advice on battery size voltage and Mah to get a turn of speed if required and a reasonable run time. Lipo preferably as I have a 2/3 cell charger from a previous project and limited space only in front third of hull. TX for any advice received

3 x Brushless Motor control? by tomarack Commander   Posted: 4 days ago
Excuse me, please -- in my case I have two brushed DC12V motors in my steamer Lulonga . I use an external HK mixer. (transmitter HKT6A V2, throttle on right stick) I control the model only with the right stick, Thr 3 canal=>forward and backward, mix with Ail 1.canal=> moving to left, or to right ) control is then very simple. I have a rudder as usual on can.4 (left stick),due to its little efficiency I use mainly right stick steering. I believe it is more simply, than tank steering. ...... I think a similar scheme could be used for brushless engines, even for propeller-driven models.

correct size of wiring by NPJ Commander   Posted: 4 days ago
Yes me not being properly was transducers that I intended to write............... Thanks for the info. I hope to run a test on the sound setup before going away. Behind now due to weather, but trying to catch up. Which is right thread to ask you about the ESC/Mixer set up? Very glad you chaps are there.................! All the best NPJ