In my 30 years as a Aircraft Engineer, my most memorable times were on large radial aircraft. Takes a special breed to work on them and fly them. Many interesting characters and my best memories. 👌
Impressive! Started many a R-1830 on DC-3's, and they never started that quickly! Matter of DC-3 lore was a statement: "You don't start a DC-3, you wake it up". Also, there was a warning in the manual that you had to have props or at least the wood prop stubs to run it, not so much for the cooling, but for the positive load requirement on the crankshaft.
@@kurtheimerman8267 Short explanation is: The crankshaft itself has massive counterweights - it is far heavier than say any car engine. The compression ratio is very low about 6-to-1. That allowed the built in supercharger to enable doing more work more smoothly for greater power and long engine life. Secondly out of 14 cylinders 3 or 4 of them are on their power strokes at all times. This offsets the force required to power the 3 or four cylinders that are on their compression strokes at all times. PS my Dad the airline mechanic loved these engines and hated the nasty brutish 9-cylinder Wright R-1820. The airline (Braniff International) that he worked for had two C-47s (militarized DC-3s) whose R-1830s had been built with large auxiliary superchargers for very high altitude work. The US FAA required the controls for those superchargers to be wired to the "off" position when operating as an approved passenger-carrying commercial aircraft inside the borders of the United States. When they were built the operating manual for those planes said the aux superchargers were to always be in the off position for takeoff. However later - in Braniff service - it was decided that due to the extreme high altitude of the airport in La Paz, Bolivia that it would be beneficial and safer to use the aux superchargers on takeoff sometimes.
Thank you for a really cool video. Manly motor!. My father flew C-47’s on the Berlin Airlift, Korea, and Vietnam (Spooky Gunships). His first mission in Vietnam was in the one of the same airframes he flew on the Berlin Airlift. Thanks for the memories.
Thats one hellofa beast to have in your garage. I have a lamp made from bits of one of them from the factory in Homebush that my folks worked in during ww2. Piston and sumpin else, a shiny shaft!
Nice. I started a lot of R-1830s in the three years that I worked on DC-3s, but never achieved a start that clean. Even using a mixture start in place of primer on a warm engine, I do not remember ever having one catch that quickly and idle so smoothly. Maybe that inertia starter helped--our engines had direct-cranking starters.
thank you very much. My engine has good startability because the genuine carburetor is broken and I'm using the Holley Dominator 4 barrel carburetorinstead.
My manager would smile when ons of these started and caughed to life. I could never understand the fuss...now, 25 years later, I am the one smiling when I see them running...
I’m currently creating a sci-fi costume that uses the pieces of a PBY Catalina. Would you mind if I use the sound from this video for the model engines?
There's a certain marvellous je-ne-sais-quoi to radial engines. It's as if inline and vee engines are the domesticated animals of the engineering world, whereas radials are the wild beasts that demand respect if you're gonna try to do anything with them.
@@squash12v Understood. Just look at this stack fire on this 4360, not to mention the brilliant idea to put a water hose on burning fuel. ruclips.net/video/kCIQ1YbtbJg/видео.html
I think I once heard of someone building a giant V-twin using two of these cylinders and putting it on a motorcycle. Just that is a monster, considering the valves in this engine are probably larger diameter than my 250's single piston.
@@michaelmurray11189 The 9 cylinder one. I flew both. Lost a prat on take off at 200 agl. at almost full gross. and.. Almost could not take it around. Landed..
From an engineering standpoint, would it be possible to put one of these engines into a NASCAR stock car? And if it could be done, would said NASCAR be absurdly fast?
+xxxleafybugxxx The engine weights almost 2,000 lbs so it isn't going to move very fast on anything with wheels. Those big piston engines were made for torque at relatively low RPM. There were a few drag cars built with V12s in the 1960s and they did OK but they were mainly for show and would do long burnouts.
Why oh why do people run aero engines with no prop or test club? It is asking for bearing trouble to run one with no load/flywheel. So while it's a nice video it gets a thumbs down.
Everyone needs one of these in their garage.
Agree, but with a prop ;-)
I got mine last week. I don't know how I went so long without one.
Yes they do!
Not me
@@walther6799imagine getting robbed and you just have a fvcking dc3 engine in there and you turn it on and chop em up
In my 30 years as a Aircraft Engineer, my most memorable times were on large radial aircraft. Takes a special breed to work on them and fly them. Many interesting characters and my best memories. 👌
My mom built wasp engines in Canada during ww2. It truly was the greatest generation.
My mom wound starter motors for Hurricanes and Spitfires during WW II. Hand-wound.
@@michaelsmith6420 ya'll had some cool ass moms
Impressive! Started many a R-1830 on DC-3's, and they never started that quickly! Matter of DC-3 lore was a statement: "You don't start a DC-3, you wake it up".
Also, there was a warning in the manual that you had to have props or at least the wood prop stubs to run it, not so much for the cooling, but for the positive load requirement on the crankshaft.
Yep. Hurts me to watch one running without a prop or a Test Club on it.
How can it run without a propeller to provide flywheel inertia?
@@kurtheimerman8267 Short explanation is: The crankshaft itself has massive counterweights - it is far heavier than say any car engine. The compression ratio is very low about 6-to-1. That allowed the built in supercharger to enable doing more work more smoothly for greater power and long engine life. Secondly out of 14 cylinders 3 or 4 of them are on their power strokes at all times. This offsets the force required to power the 3 or four cylinders that are on their compression strokes at all times.
PS my Dad the airline mechanic loved these engines and hated the nasty brutish 9-cylinder Wright R-1820.
The airline (Braniff International) that he worked for had two C-47s (militarized DC-3s) whose R-1830s had been built with large auxiliary superchargers for very high altitude work. The US FAA required the controls for those superchargers to be wired to the "off" position when operating as an approved passenger-carrying commercial aircraft inside the borders of the United States.
When they were built the operating manual for those planes said the aux superchargers were to always be in the off position for takeoff.
However later - in Braniff service - it was decided that due to the extreme high altitude of the airport in La Paz, Bolivia that it would be beneficial and safer to use the aux superchargers on takeoff sometimes.
@@patrickshaw8595 interesting. Thank you.
@@kurtheimerman8267 I got a million of them.
I am a spark-ignition engine freak
What a monstrous start up. Beautiful engine, great video. Thanks for uploading this!
Delta Airlines in the 30’s loaned one to my Dad’s High School for Shop. He died at age 90 and always remembered the firing order.
add 7, subtract 11.
Never get tired of hearing round engines; great hobby too
Great restoration. I know how difficult these engines are to work on.
Waaaay better engine than the Wright R-1820. Cost a lot more to make but better in every other way,
That is the smoothest sounding twin wasp i have ever heard in my life!!
probably helped that it was pretty much loadless the whole time. Lol
...and was probably already warm from a previous startup.
Thank you for a really cool video.
Manly motor!.
My father flew C-47’s on the Berlin Airlift, Korea, and Vietnam (Spooky Gunships).
His first mission in Vietnam was in the one of the same airframes he flew on the Berlin Airlift.
Thanks for the memories.
Love the inertia starter wind up! On of the best test stand runs. Thanks! Now to an R3350 or 4350!!
I wish my car had such start-up theatre!
Thats one hellofa beast to have in your garage. I have a lamp made from bits of one of them from the factory in Homebush that my folks worked in during ww2. Piston and sumpin else, a shiny shaft!
Nice. I started a lot of R-1830s in the three years that I worked on DC-3s, but never achieved a start that clean. Even using a mixture start in place of primer on a warm engine, I do not remember ever having one catch that quickly and idle so smoothly. Maybe that inertia starter helped--our engines had direct-cranking starters.
thank you very much. My engine has good startability because the genuine carburetor is broken and I'm using the Holley Dominator 4 barrel carburetorinstead.
Can you send me pic of these Holley 4 barrel carb on that Pratt engine? I’d like to see that
@@darrenfike924 minkara.carview.co.jp/userid/148621/blog/44990074/
@@squash12v Very impressive, artist of a mechanic
@@squash12v That's awesome. How does the Holley compare in CFM to the obviously fragged original?
Sounds absolutely amazing.
My manager would smile when ons of these started and caughed to life. I could never understand the fuss...now, 25 years later, I am the one smiling when I see them running...
No man cave could be complete without one
おめでとうございます！さすがです！イナーターの音が気持ちを高めますね！
Sounds great!
Try not to overheat it. A reduce diameter prop would take care of some load on the crank and get some flow over the cilinders
A nice, tame, civilized Rounder...and maybe an R-3350 to really impress the neighbors, if the y give ya' any crap!. Thanks.
Ok... let’s get that ‘69 VW Beetle over here and get this thing bolted up!
Ich bin verliebt in alte Autos und Flugzeuge
Magnificent.
I was worried this engine needed the load of a propeller or it would foul
Awesome !!!!!! Thank you so much for what you do!!!!!!! :-)
Gran lavoro👍
Always enjoyed the real Start. Turbines can't do that! Don't forget to ask "do large ICE Aircraft use Clutches?". You heard it !
'Smokies the bar' 😆
That was quick!!!!
runs fine, looks to be in primo shape too
And out comes one Everlasting Gobstopper!
Love the dust mask.
nice sound
Can YA imagine assembling of these monsters 🤗😛🤩👌
Fantastic
Man I need one of them....
I missed the cloud of smoke at the beginning. ;-)
1200-H,P 👈🤔
Risky start, but she is nicely tuned.
Dobry silniczek do szybowcow .
素晴らしい！
ありがとうございます
I’m currently creating a sci-fi costume that uses the pieces of a PBY Catalina. Would you mind if I use the sound from this video for the model engines?
Please use
@@squash12v Thank you so much! It really is an awesome sound. Great restoration on the motor!
There's a certain marvellous je-ne-sais-quoi to radial engines. It's as if inline and vee engines are the domesticated animals of the engineering world, whereas radials are the wild beasts that demand respect if you're gonna try to do anything with them.
Hi! Do you know where is serial number of engines printed or engraved?
How much is one of these worth today in a running condition like that ?
Ah..History..
whats the high pitch sound from the start?
Nothing like a round motor
Therapy machine
Great work although not very safe to operate it that way. Over prime it and you could burn the whole place down with an exhaust fire.
Thanks for your comment. Certainly it is dangerous, so I prepare a lot of fire extinguishers and work on it.
@@squash12v Understood. Just look at this stack fire on this 4360, not to mention the brilliant idea to put a water hose on burning fuel. ruclips.net/video/kCIQ1YbtbJg/видео.html
Hey man....chill on the admonitions. You don't come across as smarter, nor do they make the project any safer. Just enjoy.
I hope they got permission from the pilot to borrow one of his engines!!
I luv that sweet smell of high lead 100 octane carbon monoxide in the morning.
Now swap it into a Miata
looks brand spankin new. is it?
Looking for leads on 1830 /94 exhaust for a privateer
I would like one of these for my motorcycle....
I think I once heard of someone building a giant V-twin using two of these cylinders and putting it on a motorcycle. Just that is a monster, considering the valves in this engine are probably larger diameter than my 250's single piston.
The engine used in the F4F Wildcat and B-24 Liberator.
DC3's and B17's too.
@@emergencylowmaneuvering7350 Some DC-3s, yes. The B-17 only used the Wright R-1820 engine.
@@michaelmurray11189 The 9 cylinder one. I flew both. Lost a prat on take off at 200 agl. at almost full gross. and.. Almost could not take it around. Landed..
Can anyone tell me what is that first whine sound before a radial engine starts?
Electric inertia starter
ruclips.net/video/Oh_C7q3VnmI/видео.html
say bud what’s that initial sound before the motor starts to turnover?
Electric inertial starter sound
ruclips.net/video/Oh_C7q3VnmI/видео.html
From an engineering standpoint, would it be possible to put one of these engines into a NASCAR stock car?
And if it could be done, would said NASCAR be absurdly fast?
It's funny and I don't hate it, but the center of gravity is too high to run fast.
+xxxleafybugxxx The engine weights almost 2,000 lbs so it isn't going to move very fast on anything with wheels. Those big piston engines were made for torque at relatively low RPM. There were a few drag cars built with V12s in the 1960s and they did OK but they were mainly for show and would do long burnouts.
I thought the original DC-3s use a Wright R-1820 single row engine.
Registered with the US Air Force as a C47 in World War II. It is the engine of the aircraft that became the commercial aircraft DC3 after the war.
They cannot run the engine very long without any air cooling - no prop.
👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼
It's not good for these engines to run with no cooling.
I have heard it is not good to run them unloaded like this as well.
Only a few seconds like this probably doesn't matter. Bigger issue is lack of inertia, the propeller acts like a flywheel.
Turned right over, didn't it ...
It’s about as strong as one of my farts
why does this engine have an inertial starter????
Douglas C47/DC3 genuine.
@@squash12v Uhm - what do you mean? Yes or no?
Ahhh... lung cancer AND a garage fire.
That guy has ambition.
Spark plug are defective...
Why oh why do people run aero engines with no prop or test club? It is asking for bearing trouble to run one with no load/flywheel. So while it's a nice video it gets a thumbs down.
man, that gave me a chubby!
No Engine Sounds better. My Practice in CAT A is Programm on this Engine.
Rhino
How many cylinders ?
14