Just joined the 100 mph+ club

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  • Luck as a Constant
    Make Total Destroy
    • Mar 2014
    • 1952

    #46
    My old Etrex used to give me reading that weren't that accurate.
    Oh well I stand corrected I guess. Whatev tho


    Sent from my iPhone using Tapatalk
    There's a hole at the center of earth where the rest of the world sinks but i stand still...

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    • kevinpratt823
      Fast Electric Addict!
      • Aug 2012
      • 1361

      #47
      Originally posted by Gary
      Wait for it Kevin......you do notice that one reads 1/10 mph off than the others. LOL
      Well, to be fair, I started resetting them waiting at a stop sign but had to start driving, maybe the extra tenth was me reaching forward to place it on the dashboard while I was moving lol.

      I am going to try it some more and see if it's consistently off, as that one has been around a while, leaked water, repeatedly disassembled, and just recently found that it was leaking through the lens, so I silicone it up good. If it takes a good hit, the ribbon cable that operates the buttons becomes dislodged and I have to open it to get it back in place.
      Last edited by kevinpratt823; 05-19-2015, 05:14 AM.
      My private off road rc track
      https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

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      • kevinpratt823
        Fast Electric Addict!
        • Aug 2012
        • 1361

        #48
        Originally posted by dasboata
        Great job Kevin that is not easy to do !!!
        Thanks Chris, you know you played a part in my success

        I just ran the 2 sets of props you just did for me on 7s, all I can say is that if I run one of these sets on 8s on a nice day this thread may become a little less relevant.....
        My private off road rc track
        https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

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        • dasboata
          Fast Electric Addict!
          • Dec 2010
          • 3152

          #49
          Thank you Kevin put them 8 in lol


          Sent from my iPhone using Tapatalk

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          • MarkF
            dinogylipos.com
            • Mar 2008
            • 979

            #50
            Congrats Kevin

            Some put GPS units in there saw boats here and found them to be within 1 or 2 mph of the traps. I think that makes them good enough for bragging rights and you should feel good about what you did.
            The difference with the numbers you get from running through a trap is you have to maintain that speed for a longer time and then do it again going the opposite way. Much more difficult than a quick pass before the boat blows over. That doesn't mean you can't reproduce that speed at an event. You most certainly can. It just means you might have to work at it a little bit. That's why saw records are more looked up to because they are harder to do than GPS records. Your new accomplishment says your ready to come have fun at a saw event. These events are really about having fun and helping each other.It's not what some on here will say it is. People will give you there best prop to help you get a record or loan you a speed control. It's all about the fun and when you do break a record. It feels really good.

            Mark

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            • properchopper
              • Apr 2007
              • 6968

              #51
              Originally posted by MarkF
              Congrats Kevin

              Some put GPS units in there saw boats here and found them to be within 1 or 2 mph of the traps. I think that makes them good enough for bragging rights and you should feel good about what you did.
              The difference with the numbers you get from running through a trap is you have to maintain that speed for a longer time and then do it again going the opposite way. Much more difficult than a quick pass before the boat blows over. That doesn't mean you can't reproduce that speed at an event. You most certainly can. It just means you might have to work at it a little bit. That's why saw records are more looked up to because they are harder to do than GPS records. Your new accomplishment says your ready to come have fun at a saw event. These events are really about having fun and helping each other.It's not what some on here will say it is. People will give you there best prop to help you get a record or loan you a speed control.


              It's all about the fun and when you do break a record. It feels really good.

              Mark
              especially a long-standing WR

              2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
              2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
              '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

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              • keithbradley
                Fast Electric Addict!
                • Jul 2010
                • 3663

                #52
                Originally posted by MarkF
                Congrats Kevin

                Some put GPS units in there saw boats here and found them to be within 1 or 2 mph of the traps. I think that makes them good enough for bragging rights and you should feel good about what you did.
                The difference with the numbers you get from running through a trap is you have to maintain that speed for a longer time and then do it again going the opposite way. Much more difficult than a quick pass before the boat blows over. That doesn't mean you can't reproduce that speed at an event. You most certainly can. It just means you might have to work at it a little bit. That's why saw records are more looked up to because they are harder to do than GPS records. Your new accomplishment says your ready to come have fun at a saw event. These events are really about having fun and helping each other.It's not what some on here will say it is. People will give you there best prop to help you get a record or loan you a speed control. It's all about the fun and when you do break a record. It feels really good.

                Mark
                Great post Mark. As I mentioned earlier, I haven't heard the "GPS isn't accurate" argument in a long time. I think people hear "GPS speeds are not the same as SAW records" and somehow turn it in to a GPS accuracy argument.

                Kevin, I think that the GPS test above is a bit out of context here because you're keeping a steady speed. You should put all three in the boat and accelerate to high speed but don't maintain it. As soon as you get up to speed let off and then bring the boat back. I would be curious to see the results.

                The Garmins are obviously calibrated better than the little hobby GPS units we use. I have some of those that will produce a pretty varied readout.
                www.keithbradleyboats.com

                Comment

                • kevinpratt823
                  Fast Electric Addict!
                  • Aug 2012
                  • 1361

                  #53
                  Thanks Mark, I have actually begun considering the trek to one of these events, maybe next year, if I stick with this style of running.

                  Keith, I have no doubt that as the time at top speed decreases the numbers may vary more because they don't refresh quick enough or at the same times, that is precisely why I make long passes if I'm looking to get a good reading of top speed. When I make these passes, the logging shows approx 10 seconds from start to let off- 7 seconds of gradual acceleration with about 3 seconds WOT at the end(it's a big pond). When I get the fiberglass hatch though, that would be an interesting experiment, both with a long pass and a short one. Until I get that hatch squared away though, I don't think I want to tape all 3 of my GPS' to the top of the boat lol.

                  And actually, in my other thread where I posted 7 different sets of the 3 gps readings, I was in heavy stop and go highway traffic, all of those were taken while accelerating as high as I could continuously, without looking like a jerk on the highway, then immediately going from gas to brakes before I ran out of room with the cars in front of me, it was not at all a steady speed.
                  My private off road rc track
                  https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

                  Comment

                  • kevinpratt823
                    Fast Electric Addict!
                    • Aug 2012
                    • 1361

                    #54
                    Speaking of SAW events, what is the current record for a boat of this nature? I'm guessing I'm still quite a ways away from it.
                    My private off road rc track
                    https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

                    Comment

                    • keithbradley
                      Fast Electric Addict!
                      • Jul 2010
                      • 3663

                      #55
                      Originally posted by kevinpratt823
                      Thanks Mark, I have actually begun considering the trek to one of these events, maybe next year, if I stick with this style of running.

                      Keith, I have no doubt that as the time at top speed decreases the numbers may vary more because they don't refresh quick enough or at the same times, that is precisely why I make long passes if I'm looking to get a good reading of top speed. When I make these passes, the logging shows approx 10 seconds from start to let off- 7 seconds of gradual acceleration with about 3 seconds WOT at the end(it's a big pond). When I get the fiberglass hatch though, that would be an interesting experiment, both with a long pass and a short one. Until I get that hatch squared away though, I don't think I want to tape all 3 of my GPS' to the top of the boat lol.

                      And actually, in my other thread where I posted 7 different sets of the 3 gps readings, I was in heavy stop and go highway traffic, all of those were taken while accelerating as high as I could continuously, without looking like a jerk on the highway, then immediately going from gas to brakes before I ran out of room with the cars in front of me, it was not at all a steady speed.
                      I forgot that you were taping them to the outside of the boat. LOL

                      As your boat gets faster it can become more difficult to get an accurate reading. It sounds like you have a large body of water to run in but you still might be surprised at the refresh rate variations between some models (The 3 garmins you have may be very similar, I don't know...that's what made me think of the test I suggested). I had one in a boat that kept reading lower than I knew the boat was running, and it turned out to be a poor refresh on that unit.
                      www.keithbradleyboats.com

                      Comment

                      • keithbradley
                        Fast Electric Addict!
                        • Jul 2010
                        • 3663

                        #56
                        Originally posted by kevinpratt823
                        Speaking of SAW events, what is the current record for a boat of this nature? I'm guessing I'm still quite a ways away from it.
                        Since you're on the east coast I assume you would run IMPBA (the only SAW events in NAMBA are currently held in Cali). You would be S-cat. I'm not sure of the exact speed but I think it's around 113. Definitely beatable if you get the right conditions and the right setup.
                        www.keithbradleyboats.com

                        Comment

                        • TRUCKPULL
                          Fast Electric Addict!
                          • Apr 2007
                          • 2969

                          #57
                          Originally posted by keithbradley
                          Since you're on the east coast I assume you would run IMPBA (the only SAW events in NAMBA are currently held in Cali). You would be S-cat. I'm not sure of the exact speed but I think it's around 113. Definitely beatable if you get the right conditions and the right setup.
                          Keith
                          The Cat is already out of the bag, so to say.
                          In Michigan on May. 3. 2015
                          Keith set a new IMPBA record for "S" Cat
                          Here is part of the report.
                          Keith Kirchen had his big cats flying and upped the S catamaran SAW to 1.998 sec or 112.613 mph with a fast pass of 113.065. Keith still has the fastest pass ever made at Thread Lake at 119.490 mph.

                          Larry
                          Past NAMBA- P Mono -1 Mile Race Record holder
                          Past NAMBA- P Sport -1 Mile Race Record holder
                          Bump & Grind Racing Props -We Like Em Smooth & Wet

                          Comment

                          • Doug Smock
                            Moderator
                            • Apr 2007
                            • 5272

                            #58
                            Kevin,
                            The NAMBA S Cat record is 132.042.
                            MODEL BOAT RACER
                            IMPBA President
                            District 13 Director 2011- present
                            IMPBA National Records Director 2009-2019
                            IMPBA 19887L CD
                            NAMBA 1169

                            Comment

                            • keithbradley
                              Fast Electric Addict!
                              • Jul 2010
                              • 3663

                              #59
                              Originally posted by TRUCKPULL
                              Keith
                              The Cat is already out of the bag, so to say.
                              In Michigan on May. 3. 2015
                              Keith set a new IMPBA record for "S" Cat
                              Here is part of the report.
                              Keith Kirchen had his big cats flying and upped the S catamaran SAW to 1.998 sec or 112.613 mph with a fast pass of 113.065. Keith still has the fastest pass ever made at Thread Lake at 119.490 mph.

                              Larry
                              Thanks Larry, so I guess 112.613, although as far as a I know that's still pending approval from the records director. Either way, I think it was around 110 prior to that run so it's not going to change much.
                              Definitely beatable with Kevin's 45.
                              Kevin, if you are up for making the trip to Michigan this fall I would be glad to help you with the boat. If mother nature cooperates I'm sure we could get you that record.
                              www.keithbradleyboats.com

                              Comment

                              • kevinpratt823
                                Fast Electric Addict!
                                • Aug 2012
                                • 1361

                                #60
                                Originally posted by keithbradley
                                Thanks Larry, so I guess 112.613, although as far as a I know that's still pending approval from the records director. Either way, I think it was around 110 prior to that run so it's not going to change much.
                                Definitely beatable with Kevin's 45.
                                Kevin, if you are up for making the trip to Michigan this fall I would be glad to help you with the boat. If mother nature cooperates I'm sure we could get you that record.
                                Thanks Keith, I will consider it, that of course is pending that the boat is still in one piece at that point
                                I have little knowledge of these events, but I do understand that passing through the traps would be a very different undertaking, and I would definitely have to work on accelerating to speed much quicker than what I am currently doing, I can't imagine that there is nearly as much run up as what I use on these passes to keep me in the comfort zone.

                                I am also very curious now to make some passes with all 3 gps' in the boat and see how they read.
                                My private off road rc track
                                https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8

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