You can build a rubber powered model for starters. you can get as much pleasure flying a rubber powered model and you dont need large areas to fly them. and its never to late to get involved in this hobby.
Hey Samm, thats a great engine, chainsaw engines are designed to rev up responsively. You can reduce weight by cutting away at the rear case, cut the 'cowling' molded section that channels the air from the impeller fan to the engine fins, also take the flywheel out and cut away the fan blades, they do no good, just create a lot of inertial mass and drag because of the fan blades, you have the prop as a 'flywheel' I would say, you can lighten up the flywheel beyond cutting the fan blades. It will make the engine very responsive to throttle. but you will not be able to idle so low as you previously would have. Yeah using a low speed airfoil section defiantly helps!
Yea I wanted to replace the old points ignition system with a battery CDI one to cut the weight in half and have variable ignition timing for smooth idle. Also the carburetor is super duper old and simple so a better one would also help a lot.
@@SammSheperd Have you guys seen what flite test did for that? Had a plane simulate it with something like a playing card in a bike wheel setup on an electric motor. It sounded great.
"There are those that git it done !!! "..." Then, there are those that have the tools, knowledge, resources, space and time and don't git anything done !!! I have " friends " like this. Can't be bothered to build a picnic table, for example....👍👍👍!!! Well done, sir!!!, .. Well done !!! 👏👏👏👏👍👍👍
Look at your LIKES ratio Samm! - Proof that we love this break-away stuff! It's that INDIVIDUAL "build-your-own" seat of the pants spirit that make you a winner capt'n! Blue skies my friend!
Awesome landing standing from much distance and the wingtip camera footage are really super and enjoyed lot. Making this kind of old engine to fly is really appreciateable. Full circle up & down cly is grt....
Well done, great camera work and editing. Sometimes we have the most fun with things that don' t cost the world. Just going to play the update and see what you are up to.
Cool location for flying. Super amazing that the flight time is so long, I've been thinking of a long range UAV platform for a while now, and until now I just thought LiPo was the way to go. Might need to do some experimenting with both methods.
+Chace Butterworth gasoline just has such a high energy density. It's so cheap and easy to get long flight time. However gas is relatively crude and unreliable, loud, shaky.. Etc. but I do think a well designed, reliable UAV that can deal with the vibration would make a great UAV. I've also long contemplated a gas powered, variable pitch multi rotor for large, heavy lift, long endurance utility quads.
When I say UAV I actually mean a winged aircraft, just with all the usual GPS, altimeter, compass, camera, and of course flight controller. I have heard though that gas airplanes like to stall which probably isn't safe on a potentially non-line-of-sight platform. Check our Hack A Day if you are interested in gas power multicopters. The article I saw was a while back so you will have to do a search.
Does altitude impact the engine performance a lot? I wonder if some kind of simple microcontroller with an oxygen sensor could adjust the mixture in real time.
Ok, so that’s the solution for my clockwise rotating conversion engine project. Put the flywheel in the back and mount the engine from the front using CCW rotating prop Not the most elegant looking but it’s doable. The only other solution is to use a pusher prop backwards I guess, as I assume engines won’t run well in reverse if at all. Thanks for sharing.
Interesting to see the engine completely unmodified apart from the lack of recoil start. I've always wondered why they have never introduced ignition coils to power the ignition rather than rely on a separate battery for smaller commercial RC plane gas engines. It might 'drag' the engine a bit but at least you wouldn't have the extra weight/hassle of the CDI and the battery. I imagine the stator could be made relatively light as well, since the prop already acts as a freewheel. Would there be issues with RFI or rough engine running though?
Not bad! Looks like fun to fly... You even got a variable wing to fuselage angle while high g force. 😅 Sorry for my english explaining.... in german i would call it "variable Einstellwinkeldiffernz" or EWD.
it would be awesome to be able to fly this in fpv, and imagine if it had like an extra spotter camera on it that could turn 360 degrees, you could film and stuff
I biuld allot of "Rat-Rod" airplanes, they allways fly better then the store bought ones. My last one used rain gutter drain pipes as a fusalage and had a 11 foot wing span, 2100 watt elect put it in the air and handles like a slow stick. DIY is a blast.
you can try slipping it ( roll right, yaw left to crab it down). It keeps power the same but since your thrust vector is not the same direction you are flying it will effectively give you less thrust. Its used a lot in gliding from what i understand.
A forward slip to land is a required maneuver to get your Private Pilot's Licence :) It works be shoving the side of your fuselage into the airflow and thus causing lots of drag. It's a little tricky but it's a great idea. See my update video on how I figured the best way to land it is.
***** Yeah i saw that, high angle of attack to slow it down. I gotta build myself a plane, quads are fun and all but a plane, oh boy that looks fun. I think it would be cool to stick a camera in the cockpit and run all the controls through a flight controller to get scale throttle and control surfaces so it feels like a full size. I wish i had my ppl but money an time ya know.
I thought gas and foam was a bad mixture? How did you protect it from getting eaten by the gas? I'm just curious because I'm starting a fw-190 project and want it to be gas.
170trooper Thats a good question and I'm not actually sure. I used cheap EPO foam (the kind with the fused balls in it). The wings are covered in packaging tape so they are protected from oily exhaust, but the hole where I put the fuel tank hasn't really shown any melting when it gets a little fuel residue on it. If it did I would have just lined it with a plastic bag or something. Or the best idea would be to have a proper fuel tank set up that can't leak. With my bottle tank I can't go inverted, and my engine's carburetor doesn't seem to work at odd angles either.
With this title I expected something more bloody :-) . Nice plane - the engine seems quite powerful. What prop did you use and what is the max rpm you can get from the engine? The engine sounds quite beefy, I don't like the high pitch sound of small model engines but this thing is something completely different. The motor mount looks a little flimsy, especially at low rpm, so mind you face.
Haha thanks! These engines have quite a following as they are vintage and were used for cool compact machinery, such as generators and drills and chainsaws. I found one comment in a thread that said it produces 1hp@6300 rpm. So I used an online static thrust calculator and found that a 16x8 inch prop should require almost 1hp to spin at 6300 rpm. I also found a table saying what size engine should in general use what prop. And it said to use a 14 to 16 inch range. The engine mount was designed with compressed rubber joints for vibration dampening. If you ever get to see a full size Cessna start its engine with out the cowling on you will be blown away by how much the engine moves! (I work assisting with aircraft maintenance)
foamidable I was running up a Cessna yesterday afternoon and thought of this conversation, so I got some footage in slow-mo to see what it looked like. Just uploaded if you wanna look at it ua-cam.com/video/5CuSh04CnxI/v-deo.html
It might sound strange to say but from experience flying a real plane is easier than RC as you have the benefit of the feel and seat of the pants feedback. You only have your eye and experience with RC.
Im scratch building a electric right now, can someone please tell me how to make alierons? by that I mean making sure both alierons arnt up at the same time, if you no what I mean can you help me?
TheMineCastHD Hi! That is a good question and there are lots of ways to do ailerons! I drew you some pictures! If your plane is small, you can use one servo in the middle, so when it turns, on one side it pulls and the other it pushes. Like this: imgur.com/U2UMY44 If you want to use 2 servos, like I did on this giant plane (though it works great on smaller planes too). You can just connect them with a Y-cable and then to your receiver. This way they do the exact same thing at the same time. In order to make them to do opposite things, some people use a servo reverser on one side, but to me that is unnecessary and ridiculous. All you have to do is mount them in opposite directions! Like this: imgur.com/8qJ18Wr Let me know if you still need help or if you have any more questions!
Great project, and video as well! I'm curious as to how you decide where the C.G. should be when you design your scratch-built airplanes. Most maiden flights with home-built / designed planes end up with the builder finding out "the hard way" that the C.G. needs to be adjusted, but your airplanes fly great the first time out! What's your "C.G. secret"?
Thank you! With standard configuration airplanes (with a tail in the back) I always balance the airplanes between roughly 25% and 33% of the wing chord aft of the wings leading edge. I basically stick my fingers under the wing between the front and the middle and if it balances it will fly. For flying wings and canards I google a CG calculator because those are much more tricky. But for the record I have had crashes caused by poor CG, both from poor judgement and also batteries shifting in flight!
hey man, check out rcgroups.com they're an awesome bunch of guys who will help with an explanation on any level of expertise. as far as construction, he said in his build video that he did it 'by feel' so I'm not sure he has plans. above all else, before taking on a project like this, take the time to learn about each technology that's being put to use. look up 2 cycle engines, servos, radio control systems,foam cutting, aerodynamics and on and on until you're completely bored of the theory of it all, and barely even want to build a plane anymore. that's when you know you're ready XD. if you're new to the scene, I'd definitely try something a little smaller first, and much less at stake every time you take off
A gas engine needs something to get it spinning first before it can keep itself going. Cars use an electric starter, and I was using a hand held electric starter
This is still an awesome project 2 years later...love how you gave a late 60s chainsaw engine a new lease on life in an awesome fashion.
When I was a kid I used to dream of making one of these, but never had the means to do so. So awesome.
You can build a rubber powered model for starters. you can get as much pleasure flying a rubber powered model and you dont need large areas to fly them. and its never to late to get involved in this hobby.
Hey Samm, thats a great engine, chainsaw engines are designed to rev up responsively. You can reduce weight by cutting away at the rear case, cut the 'cowling' molded section that channels the air from the impeller fan to the engine fins, also take the flywheel out and cut away the fan blades, they do no good, just create a lot of inertial mass and drag because of the fan blades, you have the prop as a 'flywheel' I would say, you can lighten up the flywheel beyond cutting the fan blades. It will make the engine very responsive to throttle. but you will not be able to idle so low as you previously would have. Yeah using a low speed airfoil section defiantly helps!
Hope he reads this
Yea I wanted to replace the old points ignition system with a battery CDI one to cut the weight in half and have variable ignition timing for smooth idle. Also the carburetor is super duper old and simple so a better one would also help a lot.
Looking good! Gas engines sound great. I always miss that noise flying electric.
Yea it's a totally different experience!
@@SammSheperd Have you guys seen what flite test did for that? Had a plane simulate it with something like a playing card in a bike wheel setup on an electric motor. It sounded great.
@@kevinwixom9096 link?
@@pavicd763 when they did it it didn’t sound that much like a gasser for like a nitro to me
"There are those that git it done !!! "..." Then, there are those that have the tools, knowledge, resources, space and time and don't git anything done !!! I have " friends " like this. Can't be bothered to build a picnic table, for example....👍👍👍!!! Well done, sir!!!, .. Well done !!! 👏👏👏👏👍👍👍
Dude. You'r awesome. Love the diy spirit.
Just what I was thinking. GREAT VID & BUILD.
Do you want a chainsaw or a plane?
Samm: Yes
Brilliant!
Flys better than a lot of factory made stuff.
That engine is lovely.
This is probably the most cooling a chainsaw motor has ever received.
Look at your LIKES ratio Samm! - Proof that we love this break-away stuff! It's that INDIVIDUAL "build-your-own" seat of the pants spirit that make you a winner capt'n! Blue skies my friend!
Awesome landing standing from much distance and the wingtip camera footage are really super and enjoyed lot. Making this kind of old engine to fly is really appreciateable. Full circle up & down cly is grt....
Very nice... glory to see that engine rock like that .... always makes me smile to watch your videos...
Its a daggy looking plane but it flies so that is all you need it to do. thanx for sharing!
wow, I am so impressed with how well it flies and glides.....awesome job and video.
Nice to know I'm not the only one with my Jetta's hood popped on the side of the road to power my RC gear
Well done, great camera work and editing. Sometimes we have the most fun with things that don' t cost the world. Just going to play the update and see what you are up to.
Cool location for flying. Super amazing that the flight time is so long, I've been thinking of a long range UAV platform for a while now, and until now I just thought LiPo was the way to go. Might need to do some experimenting with both methods.
+Chace Butterworth gasoline just has such a high energy density. It's so cheap and easy to get long flight time. However gas is relatively crude and unreliable, loud, shaky.. Etc. but I do think a well designed, reliable UAV that can deal with the vibration would make a great UAV. I've also long contemplated a gas powered, variable pitch multi rotor for large, heavy lift, long endurance utility quads.
When I say UAV I actually mean a winged aircraft, just with all the usual GPS, altimeter, compass, camera, and of course flight controller. I have heard though that gas airplanes like to stall which probably isn't safe on a potentially non-line-of-sight platform. Check our Hack A Day if you are interested in gas power multicopters. The article I saw was a while back so you will have to do a search.
Very interesting and fun to watch video. Congratulations on a fine build and successful maiden flight, impressive!
That was a buttery landing right there
Those flaps really did the trick on getting it down! That wing has a ton of lift. :) Good going man.
The engine flew very good !
Beautiful job! what is the cc size of your engine and what is the wingspan and length of your plane?
Awesome dude !!scratch builds are always fun !!
Does altitude impact the engine performance a lot? I wonder if some kind of simple microcontroller with an oxygen sensor could adjust the mixture in real time.
Rock solid stable with a fin that big.
That thing dam near sounds like an old hit and miss.
Ok, so that’s the solution for my clockwise rotating conversion engine project. Put the flywheel in the back and mount the engine from the front using CCW rotating prop Not the most elegant looking but it’s doable. The only other solution is to use a pusher prop backwards I guess, as I assume engines won’t run well in reverse if at all. Thanks for sharing.
Fantastic... Just fantastic!
What a happy little 50-year-old chainsaw engine!
Interesting to see the engine completely unmodified apart from the lack of recoil start. I've always wondered why they have never introduced ignition coils to power the ignition rather than rely on a separate battery for smaller commercial RC plane gas engines. It might 'drag' the engine a bit but at least you wouldn't have the extra weight/hassle of the CDI and the battery. I imagine the stator could be made relatively light as well, since the prop already acts as a freewheel. Would there be issues with RFI or rough engine running though?
Not bad! Looks like fun to fly...
You even got a variable wing to fuselage angle while high g force. 😅
Sorry for my english explaining.... in german i would call it "variable Einstellwinkeldiffernz" or EWD.
Variable angle of incidence :)
You made a chainsaw's dream come true. Great... now earth has a flying chainsaw! :)
it would be awesome to be able to fly this in fpv, and imagine if it had like an extra spotter camera on it that could turn 360 degrees, you could film and stuff
Now it's proven - you were a genius.
awesome job it flies very good
Great plane dude!
+Samm Sheperd I know it would be a lot to ask, but could you make a detailed guide video on how to make an RC plane like this?
WOW i love it ! Well Done Man
I biuld allot of "Rat-Rod" airplanes, they allways fly better then the store bought ones. My last one used rain gutter drain pipes as a fusalage and had a 11 foot wing span, 2100 watt elect put it in the air and handles like a slow stick. DIY is a blast.
I have an old Hirtenberger Patronen Gold Cup .61 engine. Makes me want to build one.
found this via imgur . good job . what a fun little project :)
Nice work!
you can try slipping it ( roll right, yaw left to crab it down). It keeps power the same but since your thrust vector is not the same direction you are flying it will effectively give you less thrust. Its used a lot in gliding from what i understand.
A forward slip to land is a required maneuver to get your Private Pilot's Licence :) It works be shoving the side of your fuselage into the airflow and thus causing lots of drag. It's a little tricky but it's a great idea. See my update video on how I figured the best way to land it is.
***** Yeah i saw that, high angle of attack to slow it down. I gotta build myself a plane, quads are fun and all but a plane, oh boy that looks fun. I think it would be cool to stick a camera in the cockpit and run all the controls through a flight controller to get scale throttle and control surfaces so it feels like a full size. I wish i had my ppl but money an time ya know.
Great job
This was really cool!
And two lawnmower engines can fly a human pilot...
Pretty cool!
Good job! Great vid! Pretty fascinating!Thanks!
You could try and install some small air brakes on the fuselage to get it down quicker!
Samm, you rock!! What’s your academic background in?
Also, that gliding! You’re a Demi-god in my eyes Lol
Totally awesome
Since gas dissolves foam its kind of a gutsy design!
+G56AG I've actually found that it doesn't really dissolve it much at all. Maybe it is something in nitro fuel that does that?
+Samm Sheperd (SNRS)
Have you seen the videos of polystyrene cups being dissolved in gas to make 'napalm'?
Samm Sheperd Nitro fuel? I thought it was 2 stroke chain saw running on gasoline ans oil.
The ailerons need to be reinforced badly. The force of the wind is folding them. Possibly upgrade to better servos.
nice work my frent keep fly.
Man you are a genius , nice idea :))
Nice man!!
Awesome!
Thats a great video brother, hope my comments will motivate you to make more of these kind
I am afraid not he died 2 years ago
I thought gas and foam was a bad mixture? How did you protect it from getting eaten by the gas? I'm just curious because I'm starting a fw-190 project and want it to be gas.
170trooper Thats a good question and I'm not actually sure. I used cheap EPO foam (the kind with the fused balls in it). The wings are covered in packaging tape so they are protected from oily exhaust, but the hole where I put the fuel tank hasn't really shown any melting when it gets a little fuel residue on it. If it did I would have just lined it with a plastic bag or something. Or the best idea would be to have a proper fuel tank set up that can't leak. With my bottle tank I can't go inverted, and my engine's carburetor doesn't seem to work at odd angles either.
Freakin Awesome !
this was fun to watch. whereabouts in cali is this location?
+ultrakool This was actually not filmed in California at all, but in Portland, Oregon and Walla Walla, Washington!
With this title I expected something more bloody :-) . Nice plane - the engine seems quite powerful. What prop did you use and what is the max rpm you can get from the engine? The engine sounds quite beefy, I don't like the high pitch sound of small model engines but this thing is something completely different. The motor mount looks a little flimsy, especially at low rpm, so mind you face.
Haha thanks! These engines have quite a following as they are vintage and were used for cool compact machinery, such as generators and drills and chainsaws. I found one comment in a thread that said it produces 1hp@6300 rpm. So I used an online static thrust calculator and found that a 16x8 inch prop should require almost 1hp to spin at 6300 rpm. I also found a table saying what size engine should in general use what prop. And it said to use a 14 to 16 inch range.
The engine mount was designed with compressed rubber joints for vibration dampening. If you ever get to see a full size Cessna start its engine with out the cowling on you will be blown away by how much the engine moves! (I work assisting with aircraft maintenance)
foamidable I was running up a Cessna yesterday afternoon and thought of this conversation, so I got some footage in slow-mo to see what it looked like. Just uploaded if you wanna look at it ua-cam.com/video/5CuSh04CnxI/v-deo.html
.... a little more bloody... hahahahah
Great glide slope, did you have to do any thing to protect the RC electric using this engine?
+Chris Boyce Nope I just have the receiver and a small battery pack thrown in the hollow spot under the wing with the fuel tank. Pretty crude.
Your a good pilot
Seems you could lose the fan/flywheel for better performance. Good job though!
now that was cool:D
Thank you:)
hey not bad at all thanks for sharing
Good runway
Great skills.
cuz he has a pilot license!
It might sound strange to say but from experience flying a real plane is easier than RC as you have the benefit of the feel and seat of the pants feedback. You only have your eye and experience with RC.
What was the size of propeller for this engine
How are those motors compared to normal model motors?
With good engine even barn doors will fly! :)
Man that thing was clippin
wonderful
done well mate
Wow that thing is fast
Nice
Im scratch building a electric right now, can someone please tell me how to make alierons? by that I mean making sure both alierons arnt up at the same time, if you no what I mean can you help me?
TheMineCastHD Hi! That is a good question and there are lots of ways to do ailerons!
I drew you some pictures!
If your plane is small, you can use one servo in the middle, so when it turns, on one side it pulls and the other it pushes. Like this: imgur.com/U2UMY44
If you want to use 2 servos, like I did on this giant plane (though it works great on smaller planes too). You can just connect them with a Y-cable and then to your receiver. This way they do the exact same thing at the same time. In order to make them to do opposite things, some people use a servo reverser on one side, but to me that is unnecessary and ridiculous. All you have to do is mount them in opposite directions! Like this: imgur.com/8qJ18Wr
Let me know if you still need help or if you have any more questions!
that chainsaw had a tiny engine... are current chainsaw engines bigger?
Yes.
Commonly available up to 200cc.
Great job, it sounds soo real, compared to nitro
Great project, and video as well! I'm curious as to how you decide where the C.G. should be when you design your scratch-built airplanes. Most maiden flights with home-built / designed planes end up with the builder finding out "the hard way" that the C.G. needs to be adjusted, but your airplanes fly great the first time out! What's your "C.G. secret"?
Thank you! With standard configuration airplanes (with a tail in the back) I always balance the airplanes between roughly 25% and 33% of the wing chord aft of the wings leading edge. I basically stick my fingers under the wing between the front and the middle and if it balances it will fly. For flying wings and canards I google a CG calculator because those are much more tricky. But for the record I have had crashes caused by poor CG, both from poor judgement and also batteries shifting in flight!
You need an expansion chamber exhaust to get the best performance out of any 2 stroke engine.
+crgintx yea I thought about making my own
Is the plane foam...awesome vid im building one with a quadra 35 it pulls a work bench 😂
ahh ha the trim lol been there done that
nice plane though a little different would bring you to 300 status
Nice rc engine model
What did you studied to know all this ??
Common sense and the internet probably lmao
*Vraiment bien...*
Upload making video.to conect ese servos...
nice
Do you have the instructions and drawings which teach you to do this?regards from Chile
hey man, check out rcgroups.com
they're an awesome bunch of guys who will help with an explanation on any level of expertise. as far as construction, he said in his build video that he did it 'by feel' so I'm not sure he has plans. above all else, before taking on a project like this, take the time to learn about each technology that's being put to use. look up 2 cycle engines, servos, radio control systems,foam cutting, aerodynamics and on and on until you're completely bored of the theory of it all, and barely even want to build a plane anymore. that's when you know you're ready XD. if you're new to the scene, I'd definitely try something a little smaller first, and much less at stake every time you take off
he has a video that can get you started for cheap.
for like $5 its on his channel.
thank!!
when i saw flying chainsaw i though he was going to make like the whole thing fly lol
ikr that would be awesome xD
That's some really great footage! Did you use a gopro?
Yes a hero 2 bottom right and 3 on top left. Never thought I would be able to put them out on wing tips!
beutifull sound nice bro
What's the device you use to start the propeller at the beginning? Why do you use it?
It's a standard model airplane motor starter. There is no way I can hard start this engine it just won't work
Sorry, I'm new to this concept. Why can't you just turn on the motor, and have the propeller spin?
A gas engine needs something to get it spinning first before it can keep itself going. Cars use an electric starter, and I was using a hand held electric starter
Anyone see that moving dot on the top rightish corner?
Miss u
what you using for your wing sir?
Insulation foam cut with a hot wire ua-cam.com/video/aV5hILJe20U/v-deo.html
Better than any DA 35
there's a dot on the lens
7:15 tail wheel's a little jiggly lol
you SHOULD ADD SOME FLAP'S to help SLOW IT DOWN !!
It has flaps
The mass of that flywheel can't be good for flight characteristics.
Yucannt Hahvitt right, it barely took off and could hardly stay in the air and faught him at every turn.