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» 915mhz / 868mhz as a viable frequency for submarines.
HMCS Onondaga on surface patrol. EmptyWed Feb 01, 2023 8:15 am by maxx78

» 27Mhz - Radio Ideas
HMCS Onondaga on surface patrol. EmptyTue Jan 31, 2023 8:39 am by david f

» Not the hobby I expected :)
HMCS Onondaga on surface patrol. EmptyMon Dec 12, 2022 9:07 pm by cat

» Upholder build instructions
HMCS Onondaga on surface patrol. EmptySun Dec 11, 2022 5:57 am by lenD

» Antennas - Underwater
HMCS Onondaga on surface patrol. EmptyFri Dec 09, 2022 9:50 am by david f

» Single Channel Remote for submarines
HMCS Onondaga on surface patrol. EmptyFri Dec 02, 2022 2:59 pm by david f

» self contained compressor and solenoid valve for bladder systems.
HMCS Onondaga on surface patrol. EmptyThu Nov 24, 2022 5:58 pm by geofrancis

» New to this forum and first submarine
HMCS Onondaga on surface patrol. EmptyFri Oct 14, 2022 6:15 pm by Tom(ADMIN)

» USS Bluefish
HMCS Onondaga on surface patrol. EmptyFri Oct 14, 2022 1:52 am by Cheapsub

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    HMCS Onondaga on surface patrol.

    avatar
    Tom(ADMIN)
    AMS Forum Owner


    Posts : 3016
    Join date : 2010-11-05
    Age : 63
    Location : Nevada, USA

    HMCS Onondaga on surface patrol. Empty HMCS Onondaga on surface patrol.

    Post  Tom(ADMIN) Mon Mar 14, 2011 10:44 am

    This is my much modified Darnell P class boat, built to represent HMCS(Her Majesty's Canadian Submarine)Onondaga(my girlfriend is Canadian, hence the link to her home country...)

    Onondaga was the test boat for a unique dive system Bernie Wood designed, she had a 540 motor in a tube, dead centre of the hull, the idea being that the motor would drag the boat down. This was coupled to a modified R&R Engineering SALCON(Submarine Automatic Level Control)which controlled not only the rear planes(via a servo)but the speed controller for the dive motor...as the SALCON detected a change in the boat's attitude underwater, it would send a signal to the rear plane servo to correct the difference in level and also give the dive motor a short burst of power(either up or down)to keep the boat level.

    It worked to a point, but the battery drain was horrendous, so after a while Onondaga was converted back to the more usual Darnell air system, and fitted with ex-tyre compressor instead of the little USE steam engine as an air pump.


    HMCS Onondaga on surface patrol. 1010
    avatar
    Tom(ADMIN)
    AMS Forum Owner


    Posts : 3016
    Join date : 2010-11-05
    Age : 63
    Location : Nevada, USA

    HMCS Onondaga on surface patrol. Empty Re: HMCS Onondaga on surface patrol.

    Post  Tom(ADMIN) Mon Mar 14, 2011 11:43 am

    With modern high performance, low drain motors and the advent of high output LiPo batteries, that dive system may be worth another attempt.

    Onondaga only had a single 6volt 4a/h gel cell battery to run the two 380 drive motors, the 540 dive motor and all the radio equipment, and it didn't last long before it needed a recharge...if I remember correctly she would run for around ten minutes on a charge, but with modern day batteries and motors, it could be worth pursuing further.

    Food for thought, maybe...

    avatar
    Tom(ADMIN)
    AMS Forum Owner


    Posts : 3016
    Join date : 2010-11-05
    Age : 63
    Location : Nevada, USA

    HMCS Onondaga on surface patrol. Empty Re: HMCS Onondaga on surface patrol.

    Post  Tom(ADMIN) Mon Mar 14, 2011 4:51 pm

    Here's one of Nigel's photos of Onondaga in the pool at Plumpton Model Show...

    The huge great battleship in the lower front of the picture is the HMS Queen Elizabeth, built by Ken Bellman, the(then)chairman of Eastbourne Model Boat Club




    HMCS Onondaga on surface patrol. Ams29_10

      Current date/time is Sat Feb 04, 2023 6:20 pm