Cookies used in this website are gluten free, wheat free and dairy free. By using this website you agree to our use of cookies. More Info
Guest
Login Below
Join Us On Social Media!
   
Get The Model Boats App!
Apple App Store
Android app on Google Play


Help Support This Website
£
or enter custom amount

(Non Contributor)

Help support this free
website and donate.



£285 a year is needed to keep the website and apps online. Please consider donating £5 or more to help towards these fees.
All donations are securely managed through PayPal. Amounts donated are not published online.

Many thanks for your kind support.

Model Boats Website Team


Donation History
October 2017: 6 people
September 2017: 15 people
August 2017: 10 people
July 2017: 16 people
June 2017: 8 people
May 2017: 8 people
April 2017: 23 people
March 2017: 9 people
February 2017: 5 people


Unique Visitors This Month

Website Members

Terms and Conditions
Privacy Policy
Advertising
Contact


Model Boats Website
Active Users (34)
Login or Register
To Remove This Ad
Login or Register
To Remove This Ad
>> Home > Forum > Electrical Related > dicky motor
dicky motor
(546 views)
Author Message
acrefour
(Petty Officer)





Forum Posts: 4
17th Mar 2017 15:59  
>> Permalink
mdlbt.com/26846

Hi can anybody with my problem when my boat is the water the motor starts of well but after a bit the motor becomes stop and start but out of the water it runs alright help please😭

jtdavid
(Lieutenant)





Forum Posts: 46
17th Mar 2017 16:45  
>> Permalink
mdlbt.com/26847

hi, what type of transmitter are you using eg, 40mhz, 27 MHz, our 2.4ghz. you can find that 2.4mhz, if the receiver is below the water line reception can be very poor, i no the submarine guys can only use 27mhz because they go below the water. let us no your set up it makes helping you a lot easyer👍

david

acrefour
(Petty Officer)





Forum Posts: 4
18th Mar 2017 09:39  
>> Permalink
mdlbt.com/26868

Hi David its a Turnigy TGY16 2.4ghz if that helps thanks for the prompt reply😁

jtdavid
(Lieutenant)





Forum Posts: 46
18th Mar 2017 16:07  
>> Permalink
mdlbt.com/26874

hi,
it sounds like you have the receiver to low in your boat, try lifting it higher up above the water line if possible. as I said before submarines don't work very well on 2.4 ghz because they work below water level try it and let us no if it works. its a common problem with 2.4ghz unless you put receiver above water line. a few people I have spoken to have gone back to 27mhz or 40mhz. also you will notice the antenna is only short try putting this above as well.

david

acrefour
(Petty Officer)





Forum Posts: 4
18th Mar 2017 17:15  
>> Permalink
mdlbt.com/26876

thanks for thatDavid will try it out and let you know👍

marlina2
(Petty Officer)





Forum Posts: 2
18th Mar 2017 21:48  
>> Permalink
mdlbt.com/26885

It may be a transmitter/receiver problem or it may be in your drive setup that rears its ugly head once your on the water and your motor is under load. I had a similar problem with a twin motor setup which was fine out of the water but after 10 mins in the water I would lose drive to one or both props or one would slow down and just go round in circles (very embarrassing). I had no problem with radio setup so it had to be in the drive chain. I ended up changing both motors for ones with more armature poles, higher torque output and a different gear ratio. It also highlighted a problem with my first choice of battery which quite frankly were pants and used to produce similar symptoms as you describe. I now use Lipo power packs, they do have disadvantages but you can not knock the power to weight ratio. The main problem I was having appeared to be down to the 3 pole motors that were fine until they were under load, this caused the motors to overheat which in turn increases the current drain on the battery's, the net result is the motor starts to arch across the commutator and effectively becomes a dead short which in turn shuts down your ESC's or drains your battery's very quickly. As you probably know if this was to happen with Lipo's there would be no need for a smoke generator! Of course this only applies to brushed motors if you are using a brush-less motor then it will probably not help you.