Bills lovely UMS 9 cyl radial 115cc

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David Mulcahy

David Mulcahy

Рік тому

КОМЕНТАРІ: 267
@paulriggs42
@paulriggs42 Рік тому
Bill, that is a work of art, sounds bloody awesome
@macw2234
@macw2234 Рік тому
Superb videography. Incredible engine. Hats off to you
@Outofcontrol39
@Outofcontrol39 Рік тому
Sounds really smooth. Well worth the wait!
@cyrilsomerville8211
@cyrilsomerville8211 Рік тому
Cool....I love radial engines . Flipping awesome.
@NicholasStreet
@NicholasStreet Рік тому
Will love to hear it in the air. I was worried it was going to pull the Workmate over!
@seanyuke3249
@seanyuke3249 7 місяців тому
What a sound! Best 115 cc I've ever heard. Or 250 or 500 etc etc...
@peterbremberg3900
@peterbremberg3900 Рік тому
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.
@thedolt9215
@thedolt9215 Рік тому
Super elegant piece of machinery! Wow!
@paulsotheron710
@paulsotheron710 7 місяців тому
Beautiful, what a lovely engine. 👍
@mno74900
@mno74900 Рік тому
A piece of beauty I wish I had one.
@dougkubash8673
@dougkubash8673 Рік тому
It was being stubborn at first but you showed it who is boss! lol! Sounds awesome!
@gordon6029
@gordon6029 7 місяців тому
A thing of beauty!
@fpvgods
@fpvgods Рік тому
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.
@Barb5001
@Barb5001 3 місяці тому
it has often been said that the difference between man's and boy's toys is the price
@alessandroandrenacci2372
@alessandroandrenacci2372 26 днів тому
I agree
@fester73666
@fester73666 Рік тому
Beautiful little radial engine 👍
@billbright1755
@billbright1755 7 місяців тому
Vultee Vengeance Nashville Tennessee production. This radial reminds me of that aircraft.
@grampageorge3407
@grampageorge3407 7 місяців тому
Wow!What a sound!
@Mister_G
@Mister_G 7 місяців тому
That's a lovely little engine
@jarnosaarinen4583
@jarnosaarinen4583 7 місяців тому
Well done Bill!
@rand49er
@rand49er Рік тому
Cool engine. It'd be a pain in the butt to have four of those in a plane to start.
@rosco4659
@rosco4659 7 місяців тому
Absolutely beautiful thing, such a great sound.
@thepubliceye
@thepubliceye 4 місяці тому
Because our factories would not have anything to build if we never improved
@pisunets
@pisunets 3 місяці тому
Looks like a perfect engine for the bicycle
@hotliner2872
@hotliner2872 Рік тому
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!
@45035
@45035 Рік тому
Outstanding shipmate. Press on. USS Kitty Hawk CV-63. Jan 1980 to July 1983. RC er for life.
@johngriffith610
@johngriffith610 8 місяців тому
VF-51
@onazram1
@onazram1 Рік тому
Beautiful engine and so quiet...
@pauljohnson7may
@pauljohnson7may 7 місяців тому
I like it, I like it a lot. Cracking piece of engineering.
@gusm5128
@gusm5128 Місяць тому
Wow , listen to that thing , sounds beautiful 🤩
@dukeallen432
@dukeallen432 Рік тому
Thanks for keeping film running. And you asked for smile. Nice.
@rickybailey7123
@rickybailey7123 Рік тому
So bad ass wow 👌 I only wish that 1 day I will have this much skills!!
@royfearn4345
@royfearn4345 Рік тому
Beautifully engineered and crafted!
@jamesadams893
@jamesadams893 7 місяців тому
When you can get the goddamn thing to run
@johnhanson5943
@johnhanson5943 7 місяців тому
Well done! Glad you didn’t go the electric route for the engine as well.
@fuzzy_bear
@fuzzy_bear 7 місяців тому
My sphincter puckered every time you swung it by hand😳
@stamfordmeetup
@stamfordmeetup Рік тому
that's a powerful engine, look how it bent the prop.
@techristopher8077
@techristopher8077 7 місяців тому
Nicely done
@ralphsuffield8658
@ralphsuffield8658 7 місяців тому
Fantastic!Would be perfect in a motorcycle.
@coriscotupi
@coriscotupi 7 місяців тому
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.
@cdesha
@cdesha 7 місяців тому
Alright I need four of these for my B17 model
@JoeGator23
@JoeGator23 Рік тому
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 Рік тому
Its fine - hes got his foot on it.
@JoeGator23
@JoeGator23 Рік 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...
@alfmossell513
@alfmossell513 Рік тому
brilliant engineering
@masboyrc
@masboyrc Рік тому
Wow.. impressive 👌
@richardmiranda640
@richardmiranda640 7 місяців тому
Be on the lookout for flying fingers.
@fredmitchel1236
@fredmitchel1236 7 місяців тому
A beautiful thing...
@Mike-ff7ib
@Mike-ff7ib 7 місяців тому
It would be great if it had an on board electric starter motor.
@nigel900
@nigel900 Рік тому
Beautiful. 👍🏻
@dp0004
@dp0004 7 місяців тому
Somewhere around Swansea I guess. Intreage and engineering. Pleasure when things work.
@davidmulcahy4864
@davidmulcahy4864 6 місяців тому
Gelligaer - between the Taff and Rhymney Valleys. Swansea is 40 miles away. Just north of Caerphilly.
@MarkShinnick
@MarkShinnick 7 місяців тому
So smooth:)
@spaceace1006
@spaceace1006 7 місяців тому
Listen to that 4-Stroke Rumble!!!
@davidholmgren659
@davidholmgren659 7 місяців тому
SUPER COOL!
@warrenmaloney2497
@warrenmaloney2497 7 місяців тому
I didn't won't one till this video. 😍
@robinatkinson6499
@robinatkinson6499 День тому
A nice piece of engineering 🎉
@Smokeyr67
@Smokeyr67 7 місяців тому
I'm a woosse, I hated seeing your bare hand flipping the prop, but, I love the result:)
@Wildlifesupernannyfan
@Wildlifesupernannyfan 3 місяці тому
TRUE BEAUTY OF ENGINEERING!!!!
@pekkakoski6595
@pekkakoski6595 8 місяців тому
Now install that engine to a suitable-sized DHC Beaver
@JandeBloois1952
@JandeBloois1952 Місяць тому
Great sound. Would love to see two of them in a RC Grumman S2 Tracker.
@kymvalleygardensdesign5350
@kymvalleygardensdesign5350 12 днів тому
What a sound from such a small engine, that prop could have your hand off!
@Chris-sd8mk
@Chris-sd8mk 7 місяців тому
Amazing. Beautiful piece of work.
@9charoen9
@9charoen9 Місяць тому
Hello my new friend this is an awesome video I really like this video.
@Smokeyr67
@Smokeyr67 Рік тому
I don’t know which is more pleasing to the ear, Bills accent (Welsh?) or the engine😀
@robinbrowne5419
@robinbrowne5419 3 місяці тому
Awesome 👍 Someone should make an airplane to go along with it.
@ovalwingnut
@ovalwingnut 7 місяців тому
WOW! Spelled W.O.W. Very COoL.
@davestambaugh7282
@davestambaugh7282 Рік тому
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.
@mbahcarrier1629
@mbahcarrier1629 6 місяців тому
Perfect Work!!!! .....
@McGyver0479
@McGyver0479 Рік тому
magnifico!
@pilotmiami1
@pilotmiami1 7 місяців тому
Bravo.perfect
@randysummerhays4168
@randysummerhays4168 5 місяців 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
@rubinreiter6351
@rubinreiter6351 Рік тому
Nice engine, nice sound, hard to start. Love my OS they start at first attempt.
@davidmulcahy4864
@davidmulcahy4864 Рік тому
This was the first time it had been run with test rig.
@chrishuber9502
@chrishuber9502 Рік тому
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 Рік 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.
@garygullikson6349
@garygullikson6349 7 місяців тому
Now Bill has to build a huge model or ARF to use it. I wouldn't want to risk it in a crash though.
@user-wz2qe2pv6r
@user-wz2qe2pv6r 7 місяців тому
Wonderfull...full size uses a pump primer
@edwardryan9125
@edwardryan9125 7 місяців тому
Possibility to be the first flying workbench 😂
@michaelsimpson9779
@michaelsimpson9779 Рік тому
That is a lovely work of art.
@aaronwatson1062
@aaronwatson1062 7 місяців тому
That's a good airboat motor 😂
@hardrockersheritage7793
@hardrockersheritage7793 3 місяці тому
Awesome engine👌🏻
@cryon7260
@cryon7260 7 місяців тому
Next logical step would be adding a frame, two wheels and a steering bar !?
@jimbo2629
@jimbo2629 Місяць тому
A couple of guy ropes wouldn’t go amiss😀😀😀 Amazing workmanship.
@jonbutzfiscina1307
@jonbutzfiscina1307 Рік тому
You need to prime the motor, like the full scale version. Then it will start easy.
@guypehaim1080
@guypehaim1080 7 місяців тому
Nice-looking engine. What plane do you plan to use it in?
@davidmulcahy4864
@davidmulcahy4864 7 місяців тому
Bill told me at the time it was going in a Stearman but not seen that yet. Hes always got lots of projects on the go as well as non RC stuff like old tractors :).
@guypehaim1080
@guypehaim1080 7 місяців тому
In a Stearman? That would be a large model and a good opportunity to build in a lot of scale detail. I hope he does it and we get to see it. As for me, I wouldn't really need to see it fly, but I would like to see finished product with all the details. Another fantastic model would be a DC-3 in that scale.@@davidmulcahy4864
@spiritualawakenings6251
@spiritualawakenings6251 6 місяців тому
Mine starts first time every time. But i always get my neighbor to do the hand starts .
@mikekemsley1531
@mikekemsley1531 5 місяців 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.
@joemay2640
@joemay2640 7 місяців тому
Sweet i want one
@andylogo600
@andylogo600 3 місяці 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.
@roger_isaksson
@roger_isaksson Рік тому
Of all scale engines, the radial sounds the best.
@rocklarsen228
@rocklarsen228 Рік тому
Awesome maybe one day it will fly.
@RustyInventions-wz6ir
@RustyInventions-wz6ir 4 місяці тому
Very nice engine
@ShevillMathers
@ShevillMathers Рік тому
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 Рік тому
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 Рік тому
@@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.
@joewoodchuck3824
@joewoodchuck3824 7 місяців тому
The mechanics are all doable with enough skill. But who would have thought that there were miniature spark plugs?
@shelbyseelbach9568
@shelbyseelbach9568 Місяць тому
Most people.
@stevehiatt848
@stevehiatt848 7 місяців тому
What's it going in?
@kennethavesato3883
@kennethavesato3883 7 місяців тому
I know it's kinda petty but why didn't they warm it beforehand so we don't have to sit and wait for it to start but awesome
@Devo491
@Devo491 Рік тому
I fell asleep, but woke up when it finally fired.
@GeoHvl
@GeoHvl 7 місяців тому
I think I'd find a cordless drill motor and make an engine starter.
@thomasprantl4211
@thomasprantl4211 Рік тому
👍👍👍👍👍i love it 😍
@davidevans8826
@davidevans8826 Рік тому
Beautiful was it a kit or did you make it all yourself great job run so smooth
@davidmulcahy4864
@davidmulcahy4864 Рік тому
As the title says its a UMS engine.
@union310
@union310 7 місяців тому
Who's castings and drawings?
@Mike_Hughes
@Mike_Hughes 7 місяців тому
...Which won't start... Bill gives up and goes for a piss.
@classicperformance
@classicperformance Рік тому
4:20, Finally!!!! Sounds good.
@Jakob6250
@Jakob6250 6 місяців тому
Love the sound of that thing! I don't have much experience with model aircraft. Would you actually put that thing on a flying model aircraft?
@davidmulcahy4864
@davidmulcahy4864 6 місяців тому
Of course :). ukposts.info/have/v-deo/hpGmo3mZa32A2Jc.htmlsi=0Ad08OiKhIVYILMz
@TheLouisamite
@TheLouisamite Рік тому
Every radial engine iv ever seen large or small has always seem to be hard to start ,,why is that so ??
@davidregan9872
@davidregan9872 7 місяців тому
Very nice!
@user-mt1uw8ks9c
@user-mt1uw8ks9c 7 місяців тому
04:12 here it goes.😊
@bradbrown2168
@bradbrown2168 7 місяців тому
Gotta get that in a paramotor. Weight? Can I buy one?
@jimmyhaley727
@jimmyhaley727 7 місяців тому
sound is nice,,, but makes me love my electrics more
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