TECHNICAL TIPS

Contents --------------scroll down to view

 

  1. 2.4Ghz TX/Radio
  2. Motors
  3. Curing leaks

 

 2.4Ghz TX/Radio combo

With the introduction of the 2.4 Ghz Radios the 27Mhz and the 40Mhz systems will soon become obsolete, they are however the only ones suitable for underwater submarine use as the 2.4Ghz will not transmit under water.

With the 2.4Ghz system you can forget about wrong crystals; or is somebody on your frequency; dual conversion; incompatiblity of some crystals on some radios; interference etc etc. need I go on. The first 2.4Ghz sytems were expensive but now a transmitter and radio can be bought for just under £30 there seems to be no point in hanging on to your old 27 and 40Mhz Radios.... START to update for a hassle free life. Additional receivers are only £10. The cheapest I have found are the Radio Link TX/Rx, but Planet are also very reasonably priced.

 

A simple,one off binding process for your first time use and your set is tuned to just your transmitter. You can use just one transmitter and have all your boats fitted with receivers which will only receive signals from your one transmitter. Should you for any reason want to add or change your transmitter for the same type you can simple re- bind your receivers again to match your new transmitter  SIMPLE !!!!

 If you do have a rather expensive 40Mhz Transmitter it is possible to purchase an adaption kit to 2.4Ghz and still retain your transmitter, 2.4Ghz 7 channel receivers can be purchased for as little at £10 to match the modified transmitter.


 

 MOTORS

Having chosen your motor, the motor / running gear alignment is very important. In every case the motor to prop shaft or shafts MUST line up perfectly.

Good alignment will mean less load on the motor therefore less current drain and enabling higher speeds. Bad alignment could damage the motor or the speed control putting excessive load on either. The motor and shaft should be in a straight line down through the coupling and prop shaft to the propeller. Use a longer prop shaft and a solid sleeve to check that shafts meet parallel and dead centre. A novice can do a good job if he takes the time to get it right. Always cover with masking tape the motor's vent holes to prevent dust and dirt getting inside the motor when you are working inside the boat, dont forget to remove it before operating the boat.


 

LEAKING BOAT

So your plank on frame boat has sprung a leak and you can't see where the leak is. You can suspect that due to age, small cracks have appeared in the planking.  The  external hull paint work too may be cracked and damaged. 

Remedy:-  Make sure the hull and wood is thoroughly dried out. Then clear as much of the internal electrics away and make a mix of fibreglass resin; pour the resin, whilst warm into the interior of the hull and tilt the hull every way you can to make the resin find all the interior nooks and crannies.You have to be quick with this, as the resin soon starts to set and won't run. Allow the resin to set and test in your bath or test tank. I have had a 98% success rate with this.

You can try a second application if it is still leaking.