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Thread: JetChopper30 on P-Power

  1. #1

    Default JetChopper30 on P-Power

    After setting, and currently holding the NAMBA P-Ltd Mono SAW record with my first JetChopper30 and building a "hotrod" version for Christian Z. in Chile, I decided to build a hotrod for myself. Having just decommissioned my Wacko dual rudder MM and having a spare Catle/Neu 1515 1Y 2200KV motor and a T-180, I set out to have some fun and add a litle bling.

    100_0110.jpg
    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

  2. #2

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    I'm a fan of Spd stingers but I needed to shorten it to have the correct relationship with the Spd .21 rudder, which was shortened

    5-31-13 074.jpg 5-31-13 075.jpg

    OSE tabs and large fins. (three holes for bling)

    5-31-13 078.jpg


    To spread out the motor mount load, made some platforms for strength

    5-31-13 076.jpg 5-31-13 077.jpg

    [I started with a Promodel motor mount that had the useless-for-inrunners front mount which recessed the motor bolts and made them hard to line up. Instead used an Etti center section which I added a top bolt to keep things lined up.]
    Last edited by properchopper; 06-15-2013 at 11:50 AM.
    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

  3. #3

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    Looking forward to the video on this one Tony!
    Jesus is King .......NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

  4. #4

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    3/8" brass tube for servo rod to pass-through without binding on full articulation

    5-31-13 080.jpg

    narrowed the T-180 since it was getting placed next to motor in tight quarters - (hopefully one day the trusty T-180 ESC will have the water inlets/outlets going the same directions as the wires) Made a platform for the ESC to anchor it

    5-31-13 099.jpg

    Favoring the "rear-motor/batteries-on centerline" design to keep weight low & centered (which I presume minimizes chine walk) (btw it worked) I made 3/32 birch ply battery trays spaced off the bottom to allow one-wrap velcro to keep batteries from strolling around and G/Flexed them in with holes to add epoxy strength/bond

    5-31-13 085.jpg 5-31-13 089.jpg
    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

  5. #5

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    Quote Originally Posted by Brushless55 View Post
    Looking forward to the video on this one Tony!
    It's coming after the full build post is done
    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

  6. #6

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    The HRC water jackets come with small diameter fittings; replaced with larger ones after re-tapping holes

    5-31-13 096.jpg

    same for rudder

    5-31-13 097.jpg


    Waterlines short and neat inside

    5-31-13 107.jpg

    Angled outlet makes output easier to check - less wind-shear effect

    5-31-13 111.jpg
    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

  7. #7

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    I'm a big fan of hatch retention. Tabs in front

    DSC04552.JPG

    CF in back with tapered "locators" (CF can be tapped with threads!) BTW in this picture you can see the Etti center motor mount with easily accessible bolts

    5-31-13 094.jpg

    Purdy 4mm anodized thrumbscrews through rubber grommets

    5-31-13 092.jpg

    (somehow an FE30 picture snuck in & I can't figure out how to back it out )
    Attached Images Attached Images
    Last edited by properchopper; 06-14-2013 at 10:52 PM.
    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

  8. #8

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    Some Beauty shots with a big Thanks to MonoJeff for the nifty windshield
    Notice the ride-pad bottom.

    100_0110.jpg 100_0113.jpg 100_0114.jpg

    100_0112.jpg
    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

  9. #9

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    I usually don't record the first wet but I was alone in the park until a bunch of kids walked by so I commandeered a 9 year old girl to take the vid. I'm happy with the way it ran; need to center-trim the rudder and bolt on a bigger prop, but looks good so far :

    http://www.youtube.com/watch?v=2W2ihCljk8E
    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

  10. #10

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    Looks good Tony.Dang fine for first wet.Wish I could do that.

  11. #11

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    Quote Originally Posted by srislash View Post
    Looks good Tony.Dang fine for first wet.Wish I could do that.
    Thanks.Next time I'll prop way up & see what happens
    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

  12. #12

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    Some say that ride-pad hulls have trouble in chop. My P-Ltd JetChopper30 doesn't seem to mind http://www.youtube.com/watch?v=qkiTfVT1LaE
    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

  13. Default

    Very cool sir, as always. Diggin the tabs and thumb screws for the hatch....
    "There's nothing else I really want to do other than get up and build boats." - Mike Fiore

  14. #14

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    Looks and sounds great Tony!
    Jesus is King .......NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

  15. #15

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    Yep I was cruising along admiring the build and then a yellow Fe 30 pops up . Butterflies and nightmares.

    On a brighter note I'm pretty stoked on how my pursuit is running with some tired batteries , can't wait to pick up my dinogys. Not sure how long it will be before my new hatch gets here so I made one that looks good from 50 ft away. Also got a nice big rudder on there, huge difference.

    I'll be running p ltd cat next weekend, assuming the boat min. Is met. Could use a tune day before hand, water is usually flatter down there then when I run up here. Might have some free time mid week if you are gonna run at all before the race.

  16. #16

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    Quote Originally Posted by Rocstar22 View Post
    Very cool sir, as always. Diggin the tabs and thumb screws for the hatch....
    Allows quick removal when needed

    IB34 P-Mono

    DSC04553.JPG DSC04557.JPG

    Works on Cheetah's as well

    cheetah builds081.JPGcheetah builds005.JPG
    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

  17. #17

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    I wish my FE30 would pop up (the one that's on permanent display on the bottom of McKellips pond in Scottsdale ). There should be no problem making the P-Ltd Cat class minimum- only three boats are needed with the SCSTA -Boyd may show as well plus Stephen, Naveed and me.. Might have some practice time next week ; let's talk



    Quote Originally Posted by TheShaughnessy View Post
    Yep I was cruising along admiring the build and then a yellow Fe 30 pops up . Butterflies and nightmares.
    On a brighter note I'm pretty stoked on how my pursuit is running with some tired batteries , can't wait to pick up my dinogys. Not sure how long it will be before my new hatch gets here so I made one that looks good from 50 ft away. Also got a nice big rudder on there, huge difference.
    I'll be running p ltd cat next weekend, assuming the boat min. Is met. Could use a tune day before hand, water is usually flatter down there then when I run up here. Might have some free time mid week if you are gonna run at all before the race.
    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

  18. #18

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    Looks good Tony. Sorry for the newbie question but who makes the hull?
    If all of your wishes are granted, many of your dreams will be destroyed!

  19. #19

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    Quote Originally Posted by BakedMopar View Post
    Looks good Tony. Sorry for the newbie question but who makes the hull?
    I have a direct connection with the maker in China. Might end up with a distribution deal.
    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

  20. Default

    Hello Tony,

    I am testing with various strut/stinger length. I refer to John Finch's MONO MANIA. I believe 8.5% strut/stinger length is a pretty good value, reduce porposing. I have a rudder similar to yours. I modified the rudder to match the strut/stinger length:

    00002651.jpg
    00002652.jpg
    00002655.jpg
    00002657.jpg
    JC30_transom_06.jpg

    Longer rudder mount lift the transom in a turn.

    Rgds,


    Leo
    Last edited by leo_home; 01-17-2014 at 12:22 PM.

  21. Default

    Hello Tony,

    I race NAVIGA style offshore, eq. to oval. My JC30 weighted 3490g(7.7lbs). Lift and speed were high. I will either add ballast or reduce the pad area. Will try add ballast first, make it 3595g(7.93lbs). The desigh was refer to Jim Russell's article "Why does a 'pad' make a V-hull faster?". Bigger pad not necessarily better. Depend on boat set up.

    Rgds,


    Leo

  22. #22

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    Hi Tony/Leo.
    I wish I still had my JC30. But unfortunately it was T-boned by another boat & basically destroyed.
    Might have to get another one soon.

    Nice work, as always, Tony.

    Cheers.
    Paul.

  23. Default

    Hello Paul,

    Let me know before placing order. We will soon have the Lunar New Year Holiday.

    Rgds,


    Leo

  24. Default

    Hello Tony,

    I run rc boat with some other boaters. But no one could help me to take video for most of the time. I made some tool to help take video by my own:
    20140116(001).jpg

  25. #25

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