Show Your UL-1 Setup And Speed

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • yudruln8
    Senior Member
    • Feb 2008
    • 154

    #1

    Show Your UL-1 Setup And Speed

    I think this thread will help answer lots of questions people have about the UL-1 such as props,batterys,strut height and so on heres a video of mine.

    prop-440/3
    4S1P 4800mah
    strut-7/8 from the bottom of the strut to the bottem of the hull
    runtime-two runs of 3-4 min same single lipo
    Last edited by yudruln8; 02-22-2009, 06:02 PM.
  • EATMYWAKE
    certified dumbass
    • Feb 2009
    • 30

    #2
    what runtime you gettin? i like the sound of this thread!

    Comment

    • yudruln8
      Senior Member
      • Feb 2008
      • 154

      #3
      sorry about that i get 3 to 4 min runs with that setup full throttle the whole time let it cool down with the same lipo another 3 to 4 min run temps after a 3 min run were motor 110 esc 98 and the lipos were 130 at full throttle

      Comment

      • egneg
        Fast Electric Addict!
        • Feb 2008
        • 4670

        #4
        Prop - Prather modded 225s
        4s1p 4250 mah
        strut at 15/16's inches

        I haven't gps'ed since 44.2 mph on a M445 at 1" but I think it's faster now.
        IMPBA 20481S D-12

        Comment

        • yudruln8
          Senior Member
          • Feb 2008
          • 154

          #5
          well i took the boat out for a drive to test out a m445 it was a little windy today on a turn close to shore it wobbled and hit land and a rock on shore so i now ripped out the turn fin agian and i also put a nice hole in it i was little mad when i crashed it but i decieded to throw it back in the water with the hole and no turn fin and it hit 50 and had a blow over 50 now is my fastest speed oh and i lost the turn fin so i need to buy another i did get the blow over on video and will post it soon here are some pics of the damage.




          Comment

          • yudruln8
            Senior Member
            • Feb 2008
            • 154

            #6


            short video of the blow over

            Comment

            • Jeff Wohlt
              Fast Electric Addict!
              • Jan 2008
              • 2716

              #7
              Actually, it looks pretty good for the crash. Looks like a pretty tough boat!
              www.rcraceboat.com

              [email protected]

              Comment

              • yudruln8
                Senior Member
                • Feb 2008
                • 154

                #8
                yeah its been crashed a few times im gonna fix the hole and and try it agian im gonna go to the race on march 15 here in fl maybe i'll have it ready to race

                Comment

                • yudruln8
                  Senior Member
                  • Feb 2008
                  • 154

                  #9




                  finally got some work done

                  Comment

                  • SHOWBOAT1
                    Junior Member
                    • Mar 2009
                    • 3

                    #10
                    i am running 4000mah 2s 25c pacs a 440 3 blade sharpened and balanced ,15/16
                    strut depth ,CG is 3 inchs behind the sponsens, it runs good but has bad chin-walk
                    any advise would be great ,like props strut angle cg, i also noticed the strut bushing is slideing out of the strut , kinda defeats the purpose of balancing the prop.

                    Comment

                    • Capt. Crash
                      Senior Member
                      • Jan 2009
                      • 301

                      #11
                      I got mine out again this weekend and made 4ea 1+mile runs. I raised the strut up some to about 1" from the 1 1/16" she was at (bottom of hull to bottom of strut measured with strut on table) and took as much of the angle out as I could. Using the 40X57/3 prop...she was a little harder to get on plane this time because of the adjustments but I still had no difficulties...floor it to get her out of the water...then when she cavitated...I just let off some and she would hook up ...then I floored it again and we're off to the races. I got her speed back up a few mph to 48.1 and 48.0 on the fastest runs after upgrading the shaft, liner and strut bearing and breaking them in. I'm still not up to the best reading of 49.4 before the upgrades. No chine walking...she was as smooth as a babies butt. I also ran her down to the studder bump for the first time. One of the packs had 13% left in it when I got home. I think I'll move the GPS back aft for the next try with out changing anything else and see if that will help get a few more mph out of her. I still have a small leak so I sealed around the stuffing tube..maybe that is culprit.

                      No turtle kills this time!

                      Comment

                      • yudruln8
                        Senior Member
                        • Feb 2008
                        • 154

                        #12


                        it did 50 with the hole you see in the pics

                        Comment

                        • Capt. Crash
                          Senior Member
                          • Jan 2009
                          • 301

                          #13
                          Was that 50mph with or without a turn fin?

                          Comment

                          • yudruln8
                            Senior Member
                            • Feb 2008
                            • 154

                            #14
                            without it ripped out when i crashed it

                            Comment

                            • Capt. Crash
                              Senior Member
                              • Jan 2009
                              • 301

                              #15
                              Originally posted by yudruln8
                              without it ripped out when i crashed it
                              Ok...thanks!


                              Anybody got 50mph in race setup yet?

                              Comment

                              Working...