This is a follow up video of our fan powered trike but we have a "special guest" test riding it after the building tutorial.
Previous video:
kzhead.info/sun/npWyqM2cnHNtdYE/bejne.html
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www.patreon.com/techingredients
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Another law of physics is: The less efficent and noisy it is, the more fun it is. (Nuts Bolt 1st law)
Lol true
It’s not a throttle, it’s an adrenaline button.
Also referred to as the FUN BUTTON
No, it's dumb. It's a bad idea. It's a bad idea because it's extremely inefficient and extremely illegal. If the idea is to make a good gas powered bicycle, this is about the worst way to do it. If learning how to do it is the goal, maybe then you could justify it. This is a such a bad idea that an adult man on a recumbent bicycle on flat roads can easily keep up with this. If anything, this is a lesson in bad design.
I think you missed the point, it indeed is an investigation into an alternative propulsion method as I described in the video.
Luckiest kid in the world to have a dad that cool ! Not to even mention the well stocked shops/lab to kill for. & Like thE best channel going imo. Great stuff all around. 👍
@Tassadar Well alrighty then. 🤪
My God your engineering is superb.. Neither over nor under engineered, balanced considered and cost effective. Yet another testament to your overwhelming knowledge and skill. Beautiful design!
To have a father like you would be a dream that came true.. your knowledge is insane and you are able to break it down for others to understand. Great video/videos. My favorite channel..
Advantage of this fan drive system is that it will keep pushing you forward even if the ground is icy and drive wheels have no traction. It could be fun on an ice lake.
Agreed
@@thealienrobotanthropologist I think landsailers traditionally used blades, but skis might be better if the ice isn't clear, or you want to go on (relatively flat) land.
Replace the wheels with pontoons.
Nice Stig impression, but he never would have pushed someone out of the way. He intimidated people by just standing there and looking at them. He also never had any exposed skin because exposed skin gets burned. In spite of that minor faux pas, loved another great episode! Keep up the excellent work :)
Actually, he did. In several episodes he was aggressive and his Chinese version was positively brutal. You're right about the skin though.
@@TechIngredients okay, yes, the chinese version was quick with the Kung Fu, but I don't remember the original Black Stig (Ben Collins, who you're copying here) ever do anything like that. I'll have to re-watch the early episodes (such a chore, I know...) and find out.
But that was the stig's chinese cousin!
Your videos are always super good! I look forward to seeing what you come up with next.
Thanks for the video. Love your projects and presentations.
Thanks for the update!
Thanks for providing excellent content and subtle humor.
Ha ha! LOVE THE STIG bit! Oh what a ANTASTIC start to the day! Thank you so much for sharing your devices, knowledge and passions with us!
Loved the Father/Son on screen antics at the end. Waiting for more as you improve and tweak out your design and your interactions with the other "Internet Denizens."
My paramotor trike does the same, but with the wing up I can leave the road and fly up to cloud-base...( 45 minutes get there, 5000 feet ). 25 hp. ( south Florida )
Fantastic. Give us a little time...
@@TechIngredients Wow, if you are thinking of flying that: I am 170 lbs., My trike weighs more than yours; with 25 hp. I am off the ground in a few feet. My 220 lb. instructor flew it no problem. Stay airborne about 3 hours. Fly to over 10k feet. If it weighs less than 254 lbs. (without pilot), carries less than 5 gal. of fuel...no license, no medical required. Flies at 25-30 mph., Easy to fly. Training recommended. ( south Florida )
Man thats a lot of fans in those boxes. Appreciate the humor there. Keep up the awesome work guys!
Fans are big-time energy saving installation. You're supposed to reverse their direction per season. Drawing cooler air from floor and drawing upward towards ceiling for summer months. Fan blowing down during winter months. One or more fans would be needed per each of his alternate energy installations. I had to think about that too.
Great explanation, lots of actionable tips. Didn't realize that chips from widening that oil sensor hole may interfere with the engine but it makes perfect sense now that you've said it. Love these videos!
Thanks!
this is my favourite channel, along with Event Horizons. Somehow just makes me feel warm inside. SCIENCE!!
oooo! Stig from the Dark Side!! Thanks for the video!
❤ for the stig trick!
Your son is extremely lucky! This power system would also be great to make an amphibious trike! get some fold down, lockable pontoons for each side and youre in business
- or just strap onto their existing boat - low powered DIY swamp boat.. (or supersize it all)
I gotta say that really sounds like a recipe for learning how to remove water from a waterlogged engine.
Wouldn't some sort of para-sail or kite-surfing concept eliminate the idea of having to deal with the wet stuff?
@@IronHorse1722 If you look at their other video, this is a very weak engine. It looks like its a 6.5hp harbor freight engine. Paramotors are at least 3 times that and (in the US) I think up to 45hp for unlicensed experimental aircraft. I don't think you're going to get a parasail off the ground with 6.5hp. If I remember right, they were thinking about doing some hydrofoil stuff with their watercraft they built. Maybe that would be enough to get it out of the water enough to be running on the hydrofoils? Seems sketchy. Or they could just wait for the lake to freeze and put some skates on it.
@@htomerif I'm hearing you. I left a comment of my own if you'd care to analyse and pick faults through it. I'm sure there's many.
Brilliant! Physics was my weakest subject in college; your explanation makes sense to this chemistry/biology grad.
I loved the stig bit!
Great video! Thanks you always make me want to build something! But I'll need to retire first to have the time. I have a full time job plus my own business designing and building electronic and embedded devices. So I barely have time to watch you videos but, I love them all. 73s!
In a similar vein I'd recommend checking out EUCs like the "Begode Master" and Others. They can go 70+ MPH and are tiny and electric. And you can sit on them aswell. There's tons of very cool stuff about them.
It sounds awesome
I like that idea...hope to put it to test one day...
Love everything you do
You are spot on with your views on GHGs and climate change. My degree is in Resources and Environmental Management, where I studied paleoclimatology among other subjects.
Definitely an eye catcher!
Nice to see Stig in action
I love this show. I could watch this all day. It's just fun but you take it kinda serious. Possibly the best show on youtube.
Thanks! We try to mix the informative part with a little entertainment.🙂
Cant wait for the colab!
The cost breakdown of types of energy storage was great, it really shows just how cheap gas is despite people complaining about it's price. For half an hour of paid labor you can carry a substantial load for several miles and you don't have to engineer bus sized blowout preventers or drills that can go down at an angle from a floating platform in the ocean.
You have to be pretty high class to have the STIG visit. :D
I would like to see how well will it do clearing out the leaf in the fall . Should be finally a fun way to clear out leafs .
The engineering is more interesting than the result! Great video.
This really blows me away
You guys rock.
for the high center of gravity issue you could mount the motor low and belt/chain drive the propeller that way you can also change the drive ratio
You guys crack me up!
Glad your havin Fun with your Inventions this is something i would make just to see if i could.
Excellent work. Nice disco ball, by the way... 🤣🤣
cooool as always.
...still wish you were my neighbor... GREAT VIDEO! GREAT PROJECT!
LOL... loved the sense of humour throughout this one...
We're starting to dial that in.🙂
Would be good to see how much better performance you get with a cowling on your fan.
You beet me to the comment. I was wondering the sam.
I love air thrust vehicles. I'm a big fan. 😁
If you surround the blades with a simple wall as in jetski systems or jet systems, it will increase the horizontal push by 25% minimum for approximatively the same power.
Agreed. A ducted fan would work great since the wheels do the steering!
I don't think that's accurate, pretty sure open air propellers are more efficient than ducted. Two identical jet engines, one configured as a turbojet and one a turboprop, the turboprop is more efficient. The turbojet might reach higher top speeds tho
@@Username-qx9gk nope
Pretty sure they are aware of what a ducted fan is. They literally showed the 2 that they previously used in this video.
A well designed ducted fan can create more static thrust (this vehicle is moving very slowly relative to the tip speed) and an extremely well designed duct can be a little more efficient at low-medium speeds, gaining that 25% I posit isn't a "given" without re-designing the impeller / "fan" for the task... At high speed form and parasitic drag of ductwork is usually significant - again it is possible to have ducting generate some thrust, but all the drag can't easily be negated (ie. it isn't free).. Note that Jet engines duct the fan as much for PR, noise reduction and safety... The travelling public are more reassured to fly on a "jet" rather than a "propeller" aircraft.. yes the travelling public are largely "idiots".
Sometime ago you mentioned something about liquid metal epoxy. I'm eagerly waiting for that video + product.
I really liked the design walk through. One thing I feel obligated to point out is the lock-wire job as shown at the 7:10 mark. If you'd like to have the safety wire do more than keep the loose fastener from backing out completely, you should always wrap the wire in such a way that the fastener's counter-clockwise rotation increases the tension in the lock-wire. This helps to prevent loosening and is the 'by the book' as they say. It should generally resemble this -> "Ƨ" more than -> "S". Don't take that the wrong way. I've got the utmost respect for the work you do and only offer it up because I'd hate to see that hub loosen up. I'm curious, have you estimated how much of the engines torque you're consuming? It sounds like it could benefit by doubling up the blades. If you have a surplus of blades, it would be interesting to see how well it would scale.
With the more powerful engine we're going with a ground adjustable, Ultra-Prop II so that we can dial in the pitch to match the torque of the new engine.
Agreed on the safety wire. That's how they do it on helicopters.
It would be interesting to see the difference of an extra 2 blade prop for more area, even with the right pitch, if the engine is producing more torque than is being used.
I was wondering where the Stig went. Nice to see he likes the North East. Well Played!
Nice build
Very Nice. I always got surprised that airplanes could get high speed to sepárate from ground. Perhaps You calculate the number of propelers after the engine power curve and so but i enjoyed the simple way it was shown. Thanks for your work!
Stig noir was a nice touch.
I can see myself driving this on the sandy road and the peoples behind will love to fallow on their quads !😅
You have a lot of fans!
I built ("simulated") a plane in Kerbal Space program, where you had to tweak engine power and blade angle from start to topspeed. Got up close to mach1 speed i think.. depending on air density/height i can search the video link if you are interested, i've shown angle and airflow in it.
nice that you've pointed out there is still a good reason to go for a conventional engine
Good engineering considers all the available tools, refusing to use anything other than a hammer doesn't force the world to be a nail.
great video! what is with all the ceiling fan boxes?
Left over stock from the previous owners.
inspirational.
T.I. Injects levity into a video! Love it!
Good morning so this is a rare thing for me to find a person that is so intelligent and well-versed and just about every mechanical or fluid science. I figured I would ask you on a most recent video your video on second best speaker I am tutoring between the voigt or the dtqwt. Both are flared transmission line but one yours is ported. I myself have built a handful of turbocharger jet engines extremely large 250 lb thrust pulse Jets 14 ft tall Tesla coils and a lot of vintage audio equipment with home built two amps so you are definitely someone I would love to be neighbors with. As you can see the dtqwt speaker I believe is using the ground essentially as a port adjusting the four legs essentially Tunes the speaker. What's your thoughts
Some say he brushes his teeth with thermal compound and that he only bleeds when cutting lemons, all we know is that he's called the Stig
*_Stig's American cousin_
@@Username-qx9gk naaa, too slim.. I reckon he's Canadian.. it's not that far from where they are in New Hampshire ;)
Fun video Doc. What’s up with the ceiling fans?
Your coolest build IMHO! (ETA I guess your AC build was literally the coolest)
Love your new location, guess the neighbours didn't like weird noises lol. Well done; revisiting Shauberger concepts might be more fun with Tesla in mind. I think you're covering this aspect here or is that my bias?
You have a lot of fans. I'm a fan.
Ha!
Absolutely love that you broke down the rationalization involved with choosing fuel type. Explaining your logic behind the monetary approach..... top notch. But explaining your logic concerning the carbon footprint was an excellent touch. Sound logic would bring most to the/your same conclusion. Sadly, in today's world its not.
For those interested in the vibrations mentioned, look up videos on primary and secondary engine balance.
I hear you on discussing the manufacturing emissions, in the same breath we should include that internal combustion engines also have emissions involved with their manufacturing along with all the specialised equipment used to harvest,process and transportation of the fuel to be used. Also as an argument of energy source despite energy density of onboard storage. Coal power plants are on average 37% efficient, petrol engines are on average 20% efficient (modern passenger vehicle engines) Coal that's used in power plants is 60-70% carbon, so a kg is 660grams of carbon Petrol is 87% carbon 13%hydrogen so 1 kg is 870grams of carbon, the energy density for the pair is different, coal having 29.3 MJ/8.14kwh and petrol 45MJ/12.5kwh So as far as which option is better coal=10.85 mega joules of usable energy (37% of 29.3) Petrol=9 mega joules of usable energy (20% of 45) Petrol in this case represents, -16.9% less energy for an increase in carbon of +31.81% over coal. ****These are numbers pulled off of Google searches for things like "how much energy is in 1kg of "X" I personally don't believe that either obtains recorded efficiencies, I am extremely sceptical about the performance of the small engine, as motors are dynamic in the range of efficiency/rpm, I am more confident in the power plant efficiency number as that would have been calculated and measured by the companies involved in producing power so they can work out profits, as for small engines, owners are not going to run them at steady state. Good luck and thank you everyone involved ☺️
I thought the Stig wore white?!! I liked the impersonation of the Stig spot on!!!
Not the earliest Stig.
Officially the coolest guy on youtube
Very Cool Brother 😊🙏🇺🇸
powered para gliders can get you off the charts and into the air with a motor and prop.
Get Tucker Gott involved.
Also, people HAVE successfully built powered paragliders using Harbor Freight 4-stroke engines.
Can you fly this? Attach the harness back in and use a tandem wing?
Can Ammonium Perchlorate be used in your SMOKE BOMBformulations instead of AN? I have a quantity left over from amateur rocketry days, always used AP vice sugar rockets (AN). I'd like to use it up this way.
Whoah you have a lot of fans
Looks like you've got loads of fans
I have one of these with a 250W hub drive motor. Its speed limited to 25kmh and is absolutely terrifying. I expect at twice that speed you would definitely be wanting a helmet and brown undies. Sunseeker make a more performance oriented model with better brakes and the wheels cambered for improved stability because if you corner too vigourously or hit a kerb at the wrong angle they will roll. Now you have your mule running, is there a hipo version in the wings perhaps?
I would be scared to try to turn a corner at high speed on a delta trike. The tadpoles are definitely more stable. Check out the Kazebikes AR-3. It has a unique lean steering action that makes it very difficult to tip, even at speed.
@@rowgler1 that is a very cool machine.
Stig needs a turtle neck shirt...everything else in the video is PERFECT
Good morning from Australia.
A request for a build: using a top loading freezer for full submerged, hot swappable rack mount server. 3M is one of the dielectric fluid makers. The design on the market that I've seen is by a new company called "SUBMER". Thanks...p.s. you remind me of a young Ben Franklin...
And like mini videos on this channel this one will not play on either of my two iPhones yet other videos from the other channels do any idea why this one is different? Cheers
Please, Please, PLEASE tell me the co-lab is with those Southern maniacs from Cars&Cameras.. pretty please..! hahaha love the insane stuff they come up with
When I first saw the title there was a hope it was for a compressed air engine. Still, this is really cool.
I'm looking forward to the future collaboration. My wife and I both have electric assist recumbent tadpole trikes. Hers has a 1500watt hub drive motor, mine uses a 1000watt mid-drive. They're pretty fun. Amazing at hill climbing. Could you do a run with one of your colored smoke bombs attached to the fan?
Yes indeed,time for my fix..
The down side of being the son of a father who is a mad scientist is that nothing in the house works quite the way one would expect it to work:) Everything has been taken apart, looked at, and put back together.... something better than it was originally. Mom must have been the most patient person in the world:) Other than that, I would encourage making a carbon fiber cowling for the prop and an aerodynamic shell for around the rider. Molding large things out of carbon fiber is a must have skill for the modern mad scientist!
It goes both ways. Both my sons are computer "talented" and we have an eclectic mix of Linux and Windows XT running everything from our television to naked motherboards everywhere...
You could improve the efficiency of the fan by building a duct around it. You could also develop a type of contra rotating twin quad blade system like an air boat?
It would probably be easier to just enlarge the propeller as long as there was clearance for a duct.
You should fly this using a paramotor parachute, make a landing craft from an aluminum shallow boat that you drive into, or add pontoon attachments to tackle the water, and you will have tackled the sky, earth, and sea lol
Could you not insert a centrifugal clutch so the fan disengages when the engine is idling? Lets see the increase in efficiency surrounding the prop with a shroud. Good analysis of batteries v petrol Do you not need weight on the front wheel or aerofoil to keep the front down when travelling at speed?
We couldn't fit one on the PTO with the screen in place. We're not lacking in thrust, but rather stability. We need a better platform.
@@TechIngredients Check out Kazebikes AR-3 for a more stable platform.
About electric vs gasoline, especially the battery and charger, search / use free or almost free stuff, i think also possible for the fanguards etc.. Broken electric (smaller or kids) vehicles are given away for free. But yeah, the gasoline setup here seems a lot less work if you dont love or know how to do the electric.
Great stuff as always!! Loved your argument against the "only-green" obsessed. Anyways is there a project where you experiment bike or vehicle propulsion using rockets?
No. It's really a practical limitation because of the short duration and high temperature exhaust. We couldn't test it. We are building a small-scale rocket sled. That's going to be fun!
@@TechIngredients Oh yeah, really looking forward to it. Keep the awesomeness!!!
By Jove, I think he just inadvertently showed me how to fix my riding lawn mower! I gotta look into checking my pulse pump. I never knew what that thing on the engine was LoL.
Great!
Kenetic energy was named after the guy who discovered it, Ken.
Last name "Nettic"
Are there any plans for wings?
A larger propeller will give you more gyroscopic effects, which can perhaps make it more stable as long as you don't change directions, but as you stated in your previous video, it doesn't like to turn.
That's why we're upgrading to a quad.
@@TechIngredients Wonder what a rudder would do for steering assist. . . Nice job.
Contra rotating props would eliminate the gryo effect. Better than masking the problem with an extra wheel
@@aaronhammond7297 contra rotating props wouldn't do anything for gyro effect. Perhaps you're confusing torque effect when accelerating the prop? Or maybe "P-factor", (also known as asymmetric blade effect and asymmetric disc effect) when turning
@@Username-qx9gk it certainly would do something. The torques are all still present, but are acting within the frame against each other. kzhead.info/sun/ld6bhtuhgJeDY4U/bejne.html
Awesome explanation of the physics behind thrust efficiency! I'm a jet mechanic for about 24 years now and I still go nuts trying to explain thrust to weight ratios etc of jets, why we use turbofans as opposed to old school turbojets in commercial jetliners and why they're more efficient yada yada and all that jazz.. Wanted to fist bump you guys for this video 👊 - However, I do have a stupid question; With the current prop setup and it's narrow pitch did y'all have any issues with stalling (airflow stall, not engine) and end up having to limit RPM of the engine and such?? That's something I was extremely curious to find out
Also forgot to thank you for explaining *energy density* which is another concept that just can't seem to beat into people's brains 🤬
Thanks! Based on the research we did when building these propellers for our drone project it seemed likely that at the maximum RPM of the engine, four blades would be a pretty close match for the rated torque output and this turned out to be true. Stalling isn't an issue as the pitch is pretty shallow, but as speed climbed the engine was unloaded and the governor limited output and thrust. The upgraded engine will be mated to a ground adjustable pitch, Ultra-Prop II to allow the prop to be better matched to the available torque and compensate as the forward motion decreases the apparent angle of attack.
@@TechIngredients That's neat!! Yeah prop physics get a little bit out of my wheelhouse - the old prop planes I used to work on as a young mechanic, prop governors et al were always "if it's giving the pilot trouble, swap it out and let the manufacturer fix it" and pitch control much the same thing. We were taught all the mechanics of making pitch control work, the oil controls to it etc, but exactly how that functions in practice (how and when to change pitch) and what it does in the air, that all got a little out of my wheelhouse so I thought I'd ask how y'all were doing with a fixed pitch prop.
"fixed pitch prop" jeez say that 5 times fast! OH BY THE WAY!! I really enjoyed your jet video too; the afterburner, the cogent explanation of how it all worked, that gave me goose bumps! I have the hardest time explaining how a gas generator works to turn a compressor to make more gas to make thrust. When you work on them 10-18hrs a day it gets a little mundane trying to explain it all to people who ask. I just direct them to that particular video now
One thing worth mentioning is how you choose a prop that is correctly sized for your power output. Optimally, your engine should not reach full rpm in a static run. While this means you won't have the most static thrust, your thrust will be higher at higher speeds and your top speed will be higher.
This turned out to be a lucky break as we already had the propellers. But, an adjustable pitch propeller would be more flexible and that's why the upgrade will use a slightly larger, Ultra-Prop II which is ground adjustable.
It looked like the rear tires could have used quite a bit of additional air. That 37mph did not look to be to speed, as he was feathering the throttle, need to get it out on a true straightaway! Looks like a lot of fun to drive... 👍
There was power to spare, it lacks stability and gets iffy above that speed. We're going to upgrade to a quad.
Interesting how responsive that thing is, it took right off. If you are considering "souping" it up, consider moving the prop away from the motor to increase free airflow.