Mississippi Rebuild - Fastgun

Discussion in 'Warship Builds' started by Beaver, Jan 23, 2021.

  1. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

    Joined:
    Apr 12, 2013
    Posts:
    3,676
    Location:
    Central PA
    Recently got this Mississippi Predread from Steve A. Needed a major rebuild though. I stripped it down to the bare hull and now I'm working on building it back into an operational ship. Shooting to have it done in time for the Georgia battle in 30 some days.
    This is how it came.
    PXL_20210109_215918113.jpg

    No photos of the stripped down hull but here's the new stern subdeck cut out. This got epoxied in and a fiberglass job on top.
    20210111_184313.jpg

    Stern deck cut from 1/16" fiberglass.
    20210117_104638.jpg

    New stuffing tubes made out of heavy wall stainless. Used a tubing cutter to crease the ends and lock the oilite bearing in place.
    PXL_20210116_233420461.jpg

    Making a simple prop jig makes lining up the shafts soooo much easier.
    20210116_194517.jpg

    And locked in permanent.
    20210117_092513.jpg

    Bow subdeck cut out.
    PXL_20210121_233323901.jpg

    After it was epoxied to the hull I laid a light fiberglass cloth on to lock everything together and provide a durable surface.
    20210122_150403.jpg

    Looking at internal layout. It's gonna be tight.
    20210123_110853.jpg

    New forward deck cut.
    20210123_162214.jpg

    Using the cutout from the subdeck as a deck stiffener. Removed some extra material to save weight.
    PXL_20210123_235057570.jpg

    That's everything so far. Next things to go in will probably be servo mount and motors, then the rest of the guts. For guns I'm planning on duel bows and a stern sidemount with half unit pump. As small as this thing is and with the new rudder rule I expect it to spin. Gonna be a fun boat.

    More progress to come!
     
    Evan Fowler, Lou, Kevin P. and 2 others like this.
  2. darkapollo

    darkapollo Well-Known Member

    Joined:
    Mar 26, 2008
    Posts:
    809
    Location:
    Carlisle PA
    Another amazing build in the works!
     
  3. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

    Joined:
    Apr 12, 2013
    Posts:
    3,676
    Location:
    Central PA
    More progress.

    Deck stiffener for the stern piece added.
    PXL_20210128_230404151.jpg

    Mounted the drive motors. Through bolted and gooped to the hull. Some say it's nots enough. We'll see.
    PXL_20210130_040337290.jpg

    PXL_20210130_043128328.jpg

    Stern sidemount built. Using my low profile gun design with a direct solenoid hookup.
    20210130_132727.jpg

    Mounted in the boat. Everything should fit nicely under the turret.
    PXL_20210130_213808715.jpg

    Bow guns are still getting built. Seeing how 15° looks.
    PXL_20210130_223354683.jpg

    Making a mold from the BC turrets so I can have a stronger and roomier turret.
    20210131_105204.jpg

    Getting there.
     
    vicious p, SteveT44 and Kevin P. like this.
  4. darkapollo

    darkapollo Well-Known Member

    Joined:
    Mar 26, 2008
    Posts:
    809
    Location:
    Carlisle PA
    Looking great!
     
  5. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

    Joined:
    Apr 12, 2013
    Posts:
    3,676
    Location:
    Central PA
    Much progress in the last two weeks.

    Compact bow guns were built. Found out they were too wide to fit in the boat like that.
    PXL_20210203_001854991.jpg

    Did some stupid things trying to make them fit before I realized if I just spin the solenoid forward everything fits fine. :bang: (had to replace that uptube)
    20210202_193331.jpg

    Made a bracket to hold the solenoids together.
    20210206_213708.jpg

    Then mounted it to the deck.
    PXL_20210207_032921767.jpg

    Nice and clean!
    PXL_20210207_040038649.jpg

    Gun pin with lanyard. Lanyard is a 6" stainless leader from the fishing section at walmart. I crimped the end around the pin and put marine heat shrink on the joint to keep it from sliding off.
    20210208_183338.jpg

    Hobbywing 1060s for the drive. XT60s added. One for the boat, one for a spare.
    20210210_192444.jpg

    The rudder servo mount. Really like how this came out.
    PXL_20210213_054725517.jpg

    The servo drops right into the grooves and is held quite securely.
    PXL_20210215_010733005.jpg

    This aluminum plate will keep it from popping out. Just need two 6-32 thumb screws from the hardware store to finish it.
    PXL_20210215_010740992.jpg

    Added this pin to keep the rudder arm from going over center and jamming. Seems to work really well.
    20210214_120604.jpg

    Used some high temp rtv (what I had on hand) to made a deck seal. Hopefully it helps keep water out. The stern deck should set pretty low in the water.
    20210214_094431.jpg

    The wiring harness. Yep, that's it. Connections for pump, drive, and guns.
    20210214_115034.jpg

    Pump Mount. Stole this from @thegeek, as well as the pump. Lol
    20210214_180853.jpg

    Co2 and solenoid power cables installed. Needs some more zip ties I think.
    PXL_20210215_010549448.jpg

    This is all the electrons thrown in for a test fit. It's a mess and needs organized but it fits!
    20210214_192637.jpg

    Glued in these aluminum angle pieces to hold the batteries. I plan to redo them but they work well for now.
    PXL_20210215_010712052.jpg

    Also built the rudder which is freaking massive. She better turn!!
    PXL_20210215_010753792.jpg

    Just a few more things to do before she's ready for battle. Less than 2 weeks to finish! I think I can do it.
     
  6. darkapollo

    darkapollo Well-Known Member

    Joined:
    Mar 26, 2008
    Posts:
    809
    Location:
    Carlisle PA
    Looking great!
     
  7. Anvil_x

    Anvil_x Well-Known Member

    Joined:
    Nov 4, 2017
    Posts:
    1,547
    Location:
    Athens, GA
    THAT RUDDER MOUNT IS SLICK!!!!!!!

    fantastic. I'm really impressed at how you managed to get it to work with that little space around the rudder post.
     
    Beaver likes this.
  8. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

    Joined:
    Apr 12, 2013
    Posts:
    3,676
    Location:
    Central PA
    After being thrown together and given a butt ugly sheeting job at the hotel, Mississippi was able to participate in a 1v1v1 against Tom Tanner's Deutschland and @Kevin P. Monitor. First sortie only one bow gun and the sidemount worked and second sortie only the sidemount was cooperating. Managed to deal some damage and take a lot more. She was the last one afloat though. I'm not sure how that happened since it seemed like I took everyone's BBs. Lol
    Here's video.

    View: https://youtu.be/bcz8sNw0hkw
     
  9. Kotori87

    Kotori87 Well-Known Member

    Joined:
    Nov 8, 2006
    Posts:
    3,524
    Panzer, Justin Ragucci and darkapollo like this.
  10. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

    Joined:
    Apr 12, 2013
    Posts:
    3,676
    Location:
    Central PA
    I need to make a few changes to the files but for the most part the superstructure came out beautiful for this. Need to finish one more cage mast and it'll be ready to fully assemble.
    The files for this will be posted once I'm happy with the design.
    PXL_20210605_131806772.jpg

    20210608_194356.jpg
     
    Lou and Panzer like this.
  11. Beaver

    Beaver 2020 Rookie of the Year Admiral (Supporter)

    Joined:
    Apr 12, 2013
    Posts:
    3,676
    Location:
    Central PA
    Battle report:
    Finally got Mississippi into the fray at our latest regional at Hagerstown. She had some teething issues that needed fixed but overall she functioned and functioned well!
    The guns work great. Had to troubleshoot them a little to get them all working but a jammed BB and missing magnet were easy fixes. The bow guns are great fun for plinking and really crack and the sidemount is great for some close in action.
    Being so maneuverable, I had no problem driving right into the middle of the fray and tangling with anything. If I couldn't get a shot, I could outmaneuver the other guy. Had fun going after @Kevin P. in his Scharnhorst.
    Biggest problem was water influx through the barbettes. Being wide open and low to the water she'd take in water driving backwards or leaning into a turn. Sank from that a few times. Fixed that with foam.
    Overall a very fun boat. Loaned it to @Panzer after his nagato ate its drive gear and he had a blast. She'll make a good loaner in the future.
    Brand new in white and buff.
    PXL_20210617_001626584.jpg

    Sealed the barbettes with foam.
    20211017_154041.jpg
    20211017_153400.jpg

    I did replace the bow magazines with nylon tube because the PTC caps wouldn't bite into the copper well enough, blowing all the BBs out the mag.
    20211017_151729.jpg

    I have more changes to document in the future but this all that I had pictures of at the moment.
    Enjoy!
     
    Panzer and darkapollo like this.
  12. darkapollo

    darkapollo Well-Known Member

    Joined:
    Mar 26, 2008
    Posts:
    809
    Location:
    Carlisle PA
    Really clean internal layout!
     
  13. Kotori87

    Kotori87 Well-Known Member

    Joined:
    Nov 8, 2006
    Posts:
    3,524
    Predreads are great, aren't they!
     
  14. Bob

    Bob Well-Known Member

    Joined:
    Jun 14, 2007
    Posts:
    1,319
    How did it work having your stern sidemount hang so far off the deck? I’ve found that it drags in the water when I drive. It also has to fire under water a lot. It’s really easy to push the gun barrel into a ships hull. I leave my bow sidemounts hang over the side but the stern sidemounts I will only let them hang over 1/4-1/2”. You should be able to move the gun back in the turret to keep the same barrel length.
     
  15. Evan Fowler

    Evan Fowler Well-Known Member

    Joined:
    May 14, 2016
    Posts:
    252
    Location:
    Muskegon, MI
    All I can attest to is @Panzer seemed to have fun with it. Its an awesome little boat
     
    Panzer likes this.
  16. Panzer

    Panzer Iron Dog Shipwerks and CiderHaus

    Joined:
    Mar 27, 2013
    Posts:
    621
    Location:
    Hell, MI
    It was a Blast! to drive, and a totally great w/e looking forward to seeing everyone again soon.
     
    Evan Fowler likes this.
  17. Kevin P.

    Kevin P. Well-Known Member

    Joined:
    Mar 29, 2015
    Posts:
    1,717
    Location:
    Chantilly, VA
    I liked the barrel, at one point I snagged it with the bow of my boat and pivoted the little guy around until it came into sidemount range
     
  18. Bob

    Bob Well-Known Member

    Joined:
    Jun 14, 2007
    Posts:
    1,319
    I liked to do the same hook a stern sidemount and spin with Tyler’s Derflinger and my NC. It was very usefull. Another reason to not have it hang off the side.