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  • #63923
    Richard Martin 3
    Participant
      @richardmartin3

      I need help in buying a suitable radio and servos for the Sparrow 750 I am building RICHARD

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      #2567
      Richard Martin 3
      Participant
        @richardmartin3

        wht radio

        #63926
        Dodgy Geezer 1
        Participant
          @dodgygeezer1

          Without more data about what your problem is, it will be difficult to help you….

          #63928
          Richard Martin 3
          Participant
            @richardmartin3

            it is a smallish boat 750mm long with a jib and a mainsail, do you need the area surface of the sails, I cannot get the right information from shops online and there are none round here

            #63929
            Paul T
            Participant
              @pault84577

              Hello Richard

              There is quite a lot of information available on the internet, for example **LINK** and **LINK**

              Personally I would use a basic 2 channel 27meg radio system with a heavy duty servo.

              Good luck

              Paul

              #63930
              Richard Martin 3
              Participant
                @richardmartin3

                what are the cheapest radio setups for a rc yacht which wil need a strong servo fro the sails.

                #63931
                Dodgy Geezer 1
                Participant
                  @dodgygeezer1

                  The cheapest radios will be Chinese 2.4ghz ones from somewhere like hobby king. The 2 channel ones start at about ?15. However,they will be rather cheaply made, and famously have little quality control…

                  Edited By Dodgy Geezer on 18/03/2016 19:31:31

                  #63932
                  Richard Martin 3
                  Participant
                    @richardmartin3

                    I also hear the number 2.4 ghz whatever that is and the Chinees are making them can you suggest a shop for one?

                    I have treid to sing up to modl boat mayem thanks alot

                    #63933
                    Dodgy Geezer 1
                    Participant
                      @dodgygeezer1
                      Posted by Richard Martin 3 on 18/03/2016 19:38:14:

                      I also hear the number 2.4 ghz whatever that is and the Chinees are making them can you suggest a shop for one?

                      I have treid to sing up to modl boat mayem thanks alot

                       

                      Radios work on a number of different frequencies, allocated for different purposes. 27Mhz used to be the only frequency allowed for models – then 35Mhz was allocated for aircraft only in the UK – and surface vehicles (which includes boats) were allocated 40Mhz.

                      A new frequency, 2.4Ghz, was also allocated a little time ago, which can be used by cars, boats or aircraft. 2.4Ghz is the same frequency that mass-market computer wi-fi uses, so the components are very cheap, and it has other advantages for a beginner – so most people would recommend a 2.4Ghz set (especially if you are looking for a low price!). The main advantage with 2.4Ghz is that you don't have to worry about interference with other users of the pond. With the other frequencies, you have to pick a particular 'spot' to transmit on and display a flag showing that you are using that spot – then no one else can use it. 2.4Ghz sets do the equivalent of picking a spot for you so you don't need to worry about it…

                      Reputable model shops will stock a range of 2.4Ghz radios by well-known makers, such as Futaba or Spektrum. These will be very well built and highly reliable, and the cheapest will be over £50. They will often stock cheaper brands where the prices may be £30-£40. Buying from a reputable shop usually means that you will get help choosing a radio, and aftercare service if anything goes wrong. Here are the radios from a well-known reputable shop: **LINK** You don't tell us where you are, so we can't give you directions to a shop in your neighbourhood.

                      There are other outlets which sell very cheap items – one well-known one is Hobby King – **LINK**

                      Here you can find radios at less than £20, and sail servos less than £6 **LINK**

                      But these will be cheaply made, and the aftercare support is likely to be poor. But a number of people use these happily – I do so myself…

                      Edited By Dodgy Geezer on 18/03/2016 20:25:26

                      Edited By Dodgy Geezer on 18/03/2016 20:31:44

                      Edited By Dodgy Geezer on 18/03/2016 20:36:33

                      #63934
                      Richard Martin 3
                      Participant
                        @richardmartin3

                        thank you so much for ll your help I will digest it slowly I keep trying to speak to someone in Cornwall but can get no one who knows about adios

                        #63935
                        David Marks 2
                        Participant
                          @davidmarks2

                          Speak to Jerome at SHG Model Supplies 01785 840308. He is very knowledgeable and helpful on all aspects of model boats. They will most probably be closed now until Monday 10AM…..pretty sure they do not operate on a Saturday! You can view their catalogue on-line, but you have to order over the phone. A very good company to deal with.

                          #63938
                          Terry Plumridge
                          Participant
                            @terryplumridge66794

                            Hi Richard

                            I have built a Sparrow 750 and found a standard Futaba servo more than adequate for the sails, in all weathers.

                            It has had five sailing seasons and is still OK.

                            Cheers, Terry.

                            #63954
                            mark69
                            Participant
                              @mark69

                              Richard seems you have two topics asking the same thing ?? Nice racing yacht though it it a kit if so does the manual give you any advice on what radio gear is "recommended " ,if not Google this yacht and look at what s out there !!!!!!….mark

                              #63955
                              Terry Plumridge
                              Participant
                                @terryplumridge66794

                                Richard are you aware of the Sparrow forum?

                                http://racingsparrow.freeforums.org/racing-sparrow-model-yachts-topics-f3.html

                                Cheers, Terry.

                                #63956
                                john blanks 1
                                Participant
                                  @johnblanks1

                                  2 27 radios on sales that's what I use

                                  #63962
                                  Richard Martin 3
                                  Participant
                                    @richardmartin3

                                    no I did not know of it I will try it

                                    #63963
                                    Richard Martin 3
                                    Participant
                                      @richardmartin3

                                      thanks Terry sounds good

                                      #63964
                                      Richard Martin 3
                                      Participant
                                        @richardmartin3

                                        thanks Terry can you spell out eaxctly the radio equipment you have plus servos please Richard

                                        #63969
                                        Terry Plumridge
                                        Participant
                                          @terryplumridge66794

                                          Hi Richard

                                          Futaba Attack 40 Mhz Futaba S3003 servos. Be aware that the crystals you need if you want to change frequency are becoming as rare as hens teeth. Having said that, where I sail everybody is on 2.4 ghz so I have no problems with frequency clashes with my "old" equipment.

                                          Cheers, Terry

                                          #63972
                                          john blanks 1
                                          Participant
                                            @johnblanks1

                                            sparrow every thing you need a new 27 MHz tx rx receiver and used 1 futuber s 30003 servo and 1 acoms servo for rudder £35 to include post

                                            #63977
                                            Richard Martin 3
                                            Participant
                                              @richardmartin3

                                              Thanks a lot will make a note of the details any idea about a shop?

                                              #63980
                                              Terry Plumridge
                                              Participant
                                                @terryplumridge66794

                                                Sorry can't really help you with a shop, I live in Vienna, Austria.

                                                Cheers, Terry.

                                                #63985
                                                Charles Oates
                                                Participant
                                                  @charlesoates31738

                                                  Hi Richard. I sympathise with you, it's difficult when starting in this hobby to make choices the rest of us take for granted.

                                                  It seem to me you need a simple steer to a reliable shop and a recommendation of brand and type of radio to get, so here's my advice to you. I should add that I have been making radio boats for a long long time.

                                                  Shop. Howes models, a simple Google will find them.

                                                  Radio. Futuba T2hr. Cost £47.50. Add 2 futuba 3004 servos. About £12.00 each.

                                                  Why? This is decent quality gear, not the cheapest. The suplier is honest and reliable.

                                                  You can listen to endless opinions about brands and price, and you can buy things for less, but I,m assuming you want to use it for a long time and never worry about service, breakdowns or extra receivers when you build other models.

                                                  Don't consider 27 Meg gear, whilst is is perfectly OK, it's at the end of its time and you are buying for the future.

                                                  Good luck, keep asking questions when you need to.

                                                  Charles.

                                                   

                                                   

                                                  Edited By Charles Oates on 22/03/2016 09:57:11

                                                  #63986
                                                  Dave Milbourn
                                                  Participant
                                                    @davemilbourn48782

                                                    If it helps then I'd go along 100% with Charles' suggestions. The only other thing I would suggest is you buy a rechargeable NiMH battery pack for the receiver and servos. The transmitter can happily be run on alkaline cells (e.g. Duracell) because it takes very little current, while the servos have motors which will be running most of the time as you make steering and sail changes.

                                                    Here is the pack I would buy **LINK** Here is a switch and charging harness which connects it up to the receiver and charger **LINK** and here is a suitable mains charger **LINK**

                                                    Dave M

                                                    #63987
                                                    Charles Oates
                                                    Participant
                                                      @charlesoates31738

                                                      Dave is right about the batteries, long term it's the best option by far.

                                                      If cost is an issue, get the radio gear first then the batteries a bit later.

                                                      Charles.

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