Bills lovely UMS 9 cyl radial 115cc

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  • Опубліковано 19 гру 2024
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КОМЕНТАРІ • 350

  • @Barb5001
    @Barb5001 11 місяців тому +32

    it has often been said that the difference between man's and boy's toys is the price

  • @cyrilsomerville8211
    @cyrilsomerville8211 2 роки тому +17

    Cool....I love radial engines . Flipping awesome.

  • @paulriggs42
    @paulriggs42 2 роки тому +43

    Bill, that is a work of art, sounds bloody awesome

  • @NicholasStreet
    @NicholasStreet 2 роки тому +15

    Will love to hear it in the air. I was worried it was going to pull the Workmate over!

  • @peterbremberg3900
    @peterbremberg3900 2 роки тому +42

    Without choke it cannot be started by hand. the carburetor has to be flooded until it makes a smacking noise, then it starts immediately. I own and fly this engine since three years.

    • @brettbuck7362
      @brettbuck7362 6 місяців тому

      Exactly, obviously dry at the beginning, then a typical RCist grinding away with a electric starter, eventually it suck up enough fuel to pop.

  • @hotliner2872
    @hotliner2872 2 роки тому +4

    You may just convince me there is more to life than Watts.
    That is awesome.
    Please post when she is flying, that will be one big bird and worth the investment!

  • @Outofcontrol39
    @Outofcontrol39 2 роки тому +15

    Sounds really smooth. Well worth the wait!

  • @mno74900
    @mno74900 2 роки тому +8

    A piece of beauty I wish I had one.

  • @thedolt9215
    @thedolt9215 2 роки тому +5

    Super elegant piece of machinery! Wow!

  • @45035
    @45035 2 роки тому +3

    Outstanding shipmate. Press on. USS Kitty Hawk CV-63. Jan 1980 to July 1983. RC er for life.

  • @ВладимирПетровичЯрмоленко

    Я так моторчик 2-х тактный заводил 49 см. Ничего не получалось. Мне посоветовали выкрутить свечу и со шприца бензинчика туда, в цилиндр. И сразу завелось и отлично заработало.

  • @seanyuke3249
    @seanyuke3249 Рік тому +5

    What a sound! Best 115 cc I've ever heard. Or 250 or 500 etc etc...

  • @dougkubash8673
    @dougkubash8673 2 роки тому +2

    It was being stubborn at first but you showed it who is boss! lol! Sounds awesome!

  • @JoeGator23
    @JoeGator23 2 роки тому +3

    All I saw at the beginning was that thing starting and pulling itself into this man at full speed.
    Very cool engine, wobbly stand, though.

    • @davidmulcahy4864
      @davidmulcahy4864  2 роки тому

      Its fine - hes got his foot on it.

    • @JoeGator23
      @JoeGator23 2 роки тому

      @@davidmulcahy4864 It's a very cool engine and looks like it would be a fun engine to own... but for the price, I think the more modern compact jet turbines would be more versatile and interesting for various projects.
      I figured that this was not his first time starting this one, but you never know...

  • @Gus1966-c9o
    @Gus1966-c9o 8 місяців тому

    Wow , listen to that thing , sounds beautiful 🤩

  • @dukeallen432
    @dukeallen432 2 роки тому +1

    Thanks for keeping film running. And you asked for smile. Nice.

  • @SnarkfishMan
    @SnarkfishMan 4 місяці тому

    Love how the guys in the area just start to flock over 😄

  • @sierrafoxtrotgolf3638
    @sierrafoxtrotgolf3638 2 дні тому

    Incredible machining!

  • @pisunets
    @pisunets 11 місяців тому +3

    Looks like a perfect engine for the bicycle

    • @7000fps
      @7000fps 5 місяців тому

      yea but i think the prop would chop your legs UP.

    • @pisunets
      @pisunets 5 місяців тому

      @@7000fps why do I need a prop on bicycle?

  • @royfearn4345
    @royfearn4345 2 роки тому +13

    Beautifully engineered and crafted!

    • @jamesadams893
      @jamesadams893 Рік тому

      When you can get the goddamn thing to run

  • @onazram1
    @onazram1 Рік тому +1

    Beautiful engine and so quiet...

  • @fpvgods
    @fpvgods 2 роки тому +4

    Every time you have an opportunity to be friends such a person then you should take advantage of that and treat them with lots of kindness and respect because these are the type of people who teach you lots of things about life.

  • @sipet214
    @sipet214 3 місяці тому

    Beautiful ‘old school’ engine

  • @paulsotheron710
    @paulsotheron710 Рік тому +2

    Beautiful, what a lovely engine. 👍

  • @macw2234
    @macw2234 2 роки тому +9

    Superb videography.
    Incredible engine. Hats off to you

  • @Wildlifesupernannyfan
    @Wildlifesupernannyfan 11 місяців тому

    TRUE BEAUTY OF ENGINEERING!!!!

  • @pauljohnson7may
    @pauljohnson7may Рік тому

    I like it, I like it a lot.
    Cracking piece of engineering.

  • @DigiLab360
    @DigiLab360 8 місяців тому +4

    Skip to 4:15....

  • @billbright1755
    @billbright1755 Рік тому

    Vultee Vengeance Nashville Tennessee production.
    This radial reminds me of that aircraft.

  • @Mister_G
    @Mister_G Рік тому +1

    That's a lovely little engine

  • @Челдон-у4р
    @Челдон-у4р 3 місяці тому

    Как мягко работает. Просто песня😊

  • @coriscotupi
    @coriscotupi Рік тому +7

    Beautiful!
    ...If it's half as powerful as it looks, that frame to which it is bolted should be secured via cables to spikes anchored to the ground some distance away aft.

  • @ratcat7668
    @ratcat7668 2 місяці тому

    I used to work on real radial engines. Machine valve guides for new sleeves etc. Great engines.

  • @robinbrowne5419
    @robinbrowne5419 11 місяців тому

    Awesome 👍 Someone should make an airplane to go along with it.

  • @stamfordmeetup
    @stamfordmeetup 2 роки тому +2

    that's a powerful engine, look how it bent the prop.

  • @randysummerhays4168
    @randysummerhays4168 Рік тому

    Bill's famous quote I don't know if it will start by hand in between eating through a straw. Animatronics at this present moment are developing robotic fingers for Bill. Friends and loved ones attended the funeral for Bill's fingers 3 months ago it was a beautiful service

  • @rosco4659
    @rosco4659 Рік тому

    Absolutely beautiful thing, such a great sound.

    • @thepubliceye
      @thepubliceye Рік тому

      Because our factories would not have anything to build if we never improved

  • @fester73666
    @fester73666 2 роки тому +1

    Beautiful little radial engine 👍

  • @gordon6029
    @gordon6029 Рік тому +1

    A thing of beauty!

  • @rickybailey7123
    @rickybailey7123 2 роки тому +1

    So bad ass wow 👌 I only wish that 1 day I will have this much skills!!

  • @Smokeyr67
    @Smokeyr67 Рік тому

    I'm a woosse, I hated seeing your bare hand flipping the prop, but, I love the result:)

  • @alfmossell513
    @alfmossell513 2 роки тому +4

    brilliant engineering

  • @michaelsimpson9779
    @michaelsimpson9779 2 роки тому +4

    That is a lovely work of art.

  • @fishfuxors
    @fishfuxors 6 місяців тому

    Incredible job!

  • @beartooth867
    @beartooth867 6 місяців тому

    When I was 10 I built and flew model planes, we started them same way.

  • @ronliebermann
    @ronliebermann Місяць тому

    That’s a nice engine. But just for the record, a radial engine can be machined out of a single two inch thick steel plate. It would have (almost) square pistons.
    The plate would contain the crankshaft and combustion chambers, and the cylinder head would be one piece, on the side rather than the top.

  • @aleph-tavministeries247
    @aleph-tavministeries247 3 місяці тому

    Wow,beautifull engine!!

  • @fuzzy_bear
    @fuzzy_bear Рік тому +2

    My sphincter puckered every time you swung it by hand😳

    • @MmmHuggles
      @MmmHuggles 7 місяців тому

      same every time they were near the spinning prop

  • @johnhanson5943
    @johnhanson5943 Рік тому

    Well done! Glad you didn’t go the electric route for the engine as well.

  • @andyMSH700
    @andyMSH700 11 місяців тому

    i would wear leather gloves for starting as this motor will take all your fingers off and still be running. what a complicated piece of kit....well done for getting it started...scary stuff when in a plane i would only have electric start for this one....at least all you have to do is push a button on the tx and it will start.

  • @Smokeyr67
    @Smokeyr67 2 роки тому +1

    I don’t know which is more pleasing to the ear, Bills accent (Welsh?) or the engine😀

  • @davestambaugh7282
    @davestambaugh7282 2 роки тому +2

    Actually it is a lack of contact that you have to have to start an aircraft engine since contact of the magneto is never broken but shorted out to keep it from firing.

  • @ovalwingnut
    @ovalwingnut Рік тому

    WOW! Spelled W.O.W. Very COoL.

  • @9charoen9
    @9charoen9 8 місяців тому

    Hello my new friend this is an awesome video I really like this video.

  • @nigel900
    @nigel900 2 роки тому +1

    Beautiful. 👍🏻

  • @JandeBloois1952
    @JandeBloois1952 9 місяців тому

    Great sound. Would love to see two of them in a RC Grumman S2 Tracker.

  • @robinatkinson6499
    @robinatkinson6499 7 місяців тому

    A nice piece of engineering 🎉

  • @jerrypolverino6025
    @jerrypolverino6025 Місяць тому

    Beautiful.

  • @MasboyRC
    @MasboyRC 2 роки тому +2

    Wow.. impressive 👌

  • @jonbutzfiscina1307
    @jonbutzfiscina1307 2 роки тому +4

    You need to prime the motor, like the full scale version. Then it will start easy.

  • @jarnosaarinen4583
    @jarnosaarinen4583 Рік тому +1

    Well done Bill!

  • @Devo491
    @Devo491 2 роки тому

    I fell asleep, but woke up when it finally fired.

  • @jimbo2629
    @jimbo2629 9 місяців тому

    A couple of guy ropes wouldn’t go amiss😀😀😀 Amazing workmanship.

  • @mikekemsley1531
    @mikekemsley1531 Рік тому

    Very cool! I used to beat hell out of my fingers trying to state my little .049. This thing would tear your arm off. Haha.

  • @kymvalleygardensdesign5350
    @kymvalleygardensdesign5350 7 місяців тому

    What a sound from such a small engine, that prop could have your hand off!

  • @classicperformance
    @classicperformance 2 роки тому

    4:20, Finally!!!! Sounds good.

  • @JoseOzuna-q6i
    @JoseOzuna-q6i 6 місяців тому

    Little boys never grow up!!! Only thing changes is their toys and how they play!!!!!

  • @Joel-we2gg
    @Joel-we2gg 4 місяці тому

    Proper job Mate .

  • @warrenmaloney2497
    @warrenmaloney2497 Рік тому

    I didn't won't one till this video. 😍

  • @TramJizzle
    @TramJizzle 7 місяців тому

    Magnificent engine👍👍

  • @grampageorge3407
    @grampageorge3407 Рік тому

    Wow!What a sound!

  • @rubinreiter6351
    @rubinreiter6351 2 роки тому +1

    Nice engine, nice sound, hard to start. Love my OS they start at first attempt.

    • @davidmulcahy4864
      @davidmulcahy4864  2 роки тому +2

      This was the first time it had been run with test rig.

    • @chrishuber9502
      @chrishuber9502 2 роки тому +4

      The first time you start an engine ever in that configuration it's going to have to be tweaked to get the right air to fuel ratios.

    • @danieldonaldson8634
      @danieldonaldson8634 2 роки тому

      I imagine if he'd just wanted something to just make a prop go round he would have done what you do. But nobody would watch a video of what you do. This is a guy with great skills and dedication at the point of bringing something amazing to fruition, and that's what you got. You must have a hard time keeping up with the dinner party invitations.

  • @mbahcarrier1629
    @mbahcarrier1629 Рік тому

    Perfect Work!!!! .....

  • @hardrockersheritage7793
    @hardrockersheritage7793 11 місяців тому

    Awesome engine👌🏻

  • @spiritualawakenings6251
    @spiritualawakenings6251 Рік тому

    Mine starts first time every time. But i always get my neighbor to do the hand starts .

  • @fredmitchel1236
    @fredmitchel1236 Рік тому

    A beautiful thing...

  • @johnbgibbs
    @johnbgibbs 8 місяців тому +1

    There should be a law... Use no more than 24 fps when videoing propellers.

  • @cdesha
    @cdesha Рік тому

    Alright I need four of these for my B17 model

  • @ralphsuffield8658
    @ralphsuffield8658 Рік тому +2

    Fantastic!Would be perfect in a motorcycle.

    • @bungee7503
      @bungee7503 6 місяців тому

      The prop could be a bit dangerous, though. 😅

  • @dp0004
    @dp0004 Рік тому

    Somewhere around Swansea I guess. Intreage and engineering. Pleasure when things work.

    • @davidmulcahy4864
      @davidmulcahy4864  Рік тому

      Gelligaer - between the Taff and Rhymney Valleys. Swansea is 40 miles away. Just north of Caerphilly.

  • @charileross1986
    @charileross1986 6 місяців тому

    That's awesome it would be perfect in a motorcycle.

  • @nuescu
    @nuescu 2 місяці тому

    beautiful

  • @Chris-sd8mk
    @Chris-sd8mk Рік тому +1

    Amazing. Beautiful piece of work.

  • @cherniy_pios
    @cherniy_pios 2 роки тому

    Шар земной мы вращаем винтами, от себя, от себя

  • @thomasprantl4211
    @thomasprantl4211 2 роки тому

    👍👍👍👍👍i love it 😍

  • @thudor1
    @thudor1 2 місяці тому

    Fuse two of those together to make a 1/12 scale Pratt & Whitney R-2800 Double Wasp.

  • @rand49er
    @rand49er 2 роки тому +5

    Cool engine. It'd be a pain in the butt to have four of those in a plane to start.

  • @techristopher8077
    @techristopher8077 Рік тому

    Nicely done

  • @samuledarconi2927
    @samuledarconi2927 2 місяці тому

    So cool...😊

  • @MarkShinnick
    @MarkShinnick Рік тому

    So smooth:)

  • @dhouse-d5l
    @dhouse-d5l Рік тому

    Wonderfull...full size uses a pump primer

  • @rickblumenschein2433
    @rickblumenschein2433 3 місяці тому

    Every man should have one

  • @bennymario5876
    @bennymario5876 4 місяці тому

    look at the pushrods move too good

  • @НиколайХодос-л5л
    @НиколайХодос-л5л Місяць тому

    I'm interested to know what is the power, what are the revolutions and what is the engine life. Thank you. Мне интересно узнать какая мощность, какие обороты и какой ресурс двигателя. Спасибо.

    • @davidmulcahy4864
      @davidmulcahy4864  Місяць тому

      @@НиколайХодос-л5л umstech.in/?product=9-115cc

  • @rocklarsen228
    @rocklarsen228 2 роки тому

    Awesome maybe one day it will fly.

  • @davidholmgren659
    @davidholmgren659 Рік тому

    SUPER COOL!

  • @ShevillMathers
    @ShevillMathers 2 роки тому +1

    Is it a bought off the shelf engine or home built? The prop shapes are due to the “Rolling” shutter of the camera sensor, where the pixel rows are read out in sequence, unlike a more expensive design that uses a “Global” shutter where all pixels are read out simultaneously. Thanks for sharing very nice engine. Greetings from Tasmania Australia.🇦🇺🦘👍

    • @davidmulcahy4864
      @davidmulcahy4864  2 роки тому +2

      Off the shelf from UMS they so a range of 7 and 9 Cyl engines. Nice to see someone who understands global shutter - hard to do with CMOS sensors but can be done. Simple to do with CCD sensors as they have masked off storage areas - a bit like winding on film - CCDs used to be more sensitive than MOS years ago but MOS sensors had billions of deveopment money thrown at them for mobile phones. I spent my life in imaging :). Was UK CCTV prodoct manager for Bosch before I retired. Just saw 4K introduced into CCTV :).

    • @ShevillMathers
      @ShevillMathers 2 роки тому +2

      @@davidmulcahy4864 I have a medical background but also scientific/medical/forensic imaging one, but where the read-out is important for me in in my astrophotography where it makes a big difference when imaging the sun, moon and planets. Started with film in the early 60's to the present day and have too many cameras, both film, CCD & CMOS. Impossible to keep up with the newer developments in digital hardware now unless one has very deep pockets. Also been into R/C aircraft from valve radio Tx & Rx days. Done a lot of climate study, carrying cameras & recording gear up to 1.3km high with a 10' wingspan R/C-and Tx the data to a ground station. Used to be the chief flying instructor in R/C for Tasmania, Australia. Too many interests!! Clear skies, Shevill. Southern Cross Observatory Tasmania 42 South.

  • @richardwallinger1683
    @richardwallinger1683 5 місяців тому

    lurvely sound .. music to my ears .

  • @ВладимирРуденко-ъ7д
    @ВладимирРуденко-ъ7д 6 місяців тому +1

    Дед поди ещё в люфтваффе служил...

  • @mickbroad9973
    @mickbroad9973 Рік тому

    Hi i have the same engine unrun. What are you running on ignition. Mine came with life cell 6.6v 3800mah what did you use? I would prefer lipo ?

    • @davidmulcahy4864
      @davidmulcahy4864  Рік тому

      Sorry no Idea - I was just videoing Bills engine on my iphone. I’d have to ask him next time I see him.

    • @mickbroad9973
      @mickbroad9973 Рік тому

      Would be helpful thanks