F2A World Record - Control-line model aircraft speed.
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- Опубліковано 31 бер 2009
- Update May 2016
At the 2016 Control Line World Championships, held in Perth, Australia, Paul won the F2A World title with a speed of 304.3km/h, adding the World title to the European Championship title that he currently holds after winning it in 2015. Congratulations Paul!
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As promised some time ago - a re-edit in higher quality from my original tape.
On Saturday 13 October 2001 at Fairmile Common near Cobham in Surrey, UK, Paul Eisner made an attempt on his existing World Record for Control Line Speed (1.0 to 2.5cc) which he had held at just over 194 mph since 1987. In unseasonably warm conditions (24C) the best run of the afternoon registered a provisional speed of 208.28 mph. This beats his existing record by the considerable margin of around 14 mph. The model is powered by an Irvine 15 "special" and uses a single-blade carbon fibre prop - as is usual with models of this type. More details and photos on my website at www.flyrc.org.uk/record/contro... - Авто та транспорт
Thank you, John, and UA-cam, for showing me something I never knew existed before ten minutes ago. Cool stuff.
Damn I also came here because of your and his comment on this other speedthingy-video
Down the rabbit hole we all go...
Im also here because of john and you.
Yup
0:58 Me walking my pet fly
Excellent 🤣
Thx for making me smile 😄
Sphero
Some facts for you fellas: Only one-inboard wing, as the drag of the 2 lines are the biggest drag factor. One line is forbidden by the rules (monoline) also longer than 1 m wings outruled. Engine turns at about 40.000 rpm so the two blade prop is ineffective ( other blade falls in the slipstream of the other). The one blade prop tip travels in excess of sound of speed (Tip speed is +1MACH!) and the counterweight is inside the spinner. The 2,5cc glo engine delivers more than 2,5 horsepower. so if it would be a 2,5 litre car engine, the power would be 2500 horsepower. Now you MAY understand these "toys" are actually VERY HIGH TECH scale racers...
Theln D.....Shut up **&^%$#@! Ignorant Fruit !
Its still stupid as fuck 😂
@@mark675 HAHAHAHAHAHHA I dare you. Hahhahahah.
while it is very impressive, its not a fair comparison against a car, the engine on this plane is a 2 stroke nitro powered engine, giving it an advantage over a 4 stroke using race fuel, also, I do not believe that power scales up in a 1:1 ratio with displacement.
Raddaddy watanen. Sure a lot of experts online who have not flown a controline craft.
This is my first time seeing anything like this. It looks so fun. Although if you watch this video and ignore the plane and line, it looks a bit funny seeing someone run around a pole.
I used to have a few cable planes back in the early 80's. You controlled the plane through a couple cables usually attached to a handle. You just tilted the handle and got really dizzy. Mine were slower and there was no pole
It was just like this one ua-cam.com/video/0tRqihqtzgY/v-deo.html
ua-cam.com/video/vJ0OChpLtbg/v-deo.html
I love the sound of the engine when it comes onto the pipe. Took a couple of circuits to unload the prop enough to get it onto the pipe. Great video!
i liked the part where the plane went fast around in a circle
this dude was drowning in it after his sex alarm set a world record
You're easily amused, huh??
Congratulations!!
Can you imagine how many times I watched this video? Maybe over 10 times in 24 hours. This is such a great performance. Congratulations!
If i’ll fail with Curling 🥌 this will be my next thing 😄
@xXspartan125Xx Naturally the hub is weighted to balance the prop! Can you imagine the vibrations produced by an out-of-balance prop at 38,000 rpm?
One-bladed props are more efficient - the one blade is not operating in the disturbed air from the other blade. Additionally small changes in pitch can easily be made with a thin spacer behind part of the prop hub. This is not possible with two-bladed props.
@dratter24 At the time we thought it was about 36,000 rpm. Subsequent analysis of the sound track on the video gives a figure closer to 39,000 rpm.
killer video, we are watching this in new jersey with a copy of aeromodeller feb 1980 showing a picture of the hungarian team and we figured it was worth seeing the state of the art today, fantastic
That line is right a neck level. That can turn real bad, real fast
One Wing, One propeller blade, One hell of a ride!!!
Nice to see again control line models.
I wish there would also videos of control line scale models.
Thanks for this vidéo !!
hey john, i have to say i have never seen this in real life but having seen articles about this very esoteric branch of aeromodelling in magazines over the years, the aircraft themselves truly look like works of art.
my dad was telling me about his first nitro plane and he cranked it set it on kite string and after a half lap it let go into the next county lol great video man!
Fascinating! Thanks.
This guys dreams to be a pole dancer one day. "Diamond, coming to the stage folks, Diamooooond"
I have no idea what I just saw but I love it😂😂😂
That doppler effect is amazing :)
Always wanted to be a C/L combat pilot myself (emphasis on "wanted"), but that engine sound... Just Wow. Gives me goosebumps.
@newguy33X No insult, but until you fly an actual glow-powered C/L plane, you won't get the point. You are not only directly controlling the plane, physically, in a way RC can't touch, but you can actually feel the engine running throughout the whole flight. It's very visceral.
As for risk, since the plane is held out at the end of the lines by centrifugal force, there's very little risk from the prop, compared to an RC flyer who can fly his plane into himself.
Bollocks !
On the next attempt the lines snapped... and the plane was recovered in Delaware.
Now I know where the Ironside theme song came from!
Legend has it that the man and the plane after reaching high velocity entered orbit and begin their interstellar journey
Very cool!
It's an athletic sport.:) My Irvine 2.5 cc engine got 39,000 RPM and went like crazy.
39k is nothing compared to some engines today.
The 2.5cc in my 4wd truck spins faster than that
That "cord" as you put it is two wires. The airplane is controlled with these. The plane will not fly itself. If the pilot where to lose control, it would just crash. They have been doing this since the 30s with no such problem.
Insane!
I'm trying to analyze tether drag, can you tell me the type of control line you used - i.e. material type, diameter, round/braided?
Good job!
Nice particularly into control line flying, but still cool to see.
@TestECull Is an F-104 Starfighter an airplane? I'll bet this has a lower wing-loading (wing area per weight) than a Starfighter. Or is any C/L plane "not an airplane" because it only has elevator control?
When that prop started matching the airspeed the sound pitched higher. Top speed on any helicopter is 222 mph. I can't imagine what the propeller tips speed was. insane.
It is sometimes fascinating to read those comments by people that don`t have the slightest qlue on what this is all about. . It is not so easy The element of fine tuning of engine, know how of metallurgy is also there. Just to point out one little fact: these engines have a capacity of 2,5cc and power output about 2 horsepower That means 2,5 litre engine should have to have 2000 horsepower or 6 litre Dragster engine 6000 horsepower. now you might get an idea of the technology with these "toys".
Great video,what kind of engine was it,and how much cc/ HP?
Reagrds peter
That engines turning 100,000 rpms. Getting down.
Ok , so its 40 000 rpms
I was close
Hi - thanks for the comments! I understand that a Hungarian has recently submitted a claim to the FIA for a new record in this class. Also a claim for the 2.5 to 5cc class.
I was amazed at how the plane accelerated. When I flew CL many years ago there was no throttle control!
@@fwbenson57 No throttle control; it was simply the tuned exhaust pipe starting to work.
@kyussfan6 A single bladed prop is striving for the last bit of efficiency in a specific RPM range, which is not the case for for a typical RC plane. I have seen single bladed applications in FF and CL, but none come to mind with RC.
The only hobby where you look like an idiot while having a good time.
A fair question! Longer lines would result in more drag and hence slower speed, both actual speed and rotational speed. The radius of the circle the model flies round is defined by the FAI at 17.69m - hence 9 laps = 1km. But I'm sure if the rotational speed ever became a problem then the radius would be increased. Until 1997 the radius was 15.92m.
This doesn't add up? :/
@@wilhelmjohansson1643 17.69m * 2Pi * 9 = 1000m
@@emielverbeeren8181 right, was a wee bit tired when i commented this 😂 it totally makes sense tho
Those white socks at the end tells you these people mean business
To correctly use an overused word, that was awesome. I'm getting back into C/L stunt, but I've always been fascinated by you "speed freaks". What accounts for the "relatively normal" rpms on take off then becoming the 40k "mosquito from hades" during the speed run? A timed pressure feed from a bladder? Thanks for posting-very enlightening! And CONGRATULATIONS!~Jon
The low rpm on take off is just the engine being loaded from low airspeed, you see that he had to whip like hell to get it "on pipe". The engine isn't producing much power until the revs come up.Also to note that it is running very rich at low rpm, so it doesn't lean out at speed. Amazing performance for FAI fuel (20%castor 80%methanol).
Jon - The tuned pipe is setup to give maximum power at round about 40k rpm. (Actually I believe it's a bit higher than that these days!) At takeoff the motor is running much slower and producing much less power. The lines are then 'whipped' to briefly take some load off the motor and allow it to get up to the speed at which the pipe works. That's where you hear the jump in engine revs, and then it's purely the power of the motor moving the plane as the handle is put into the pylon.
That's insane.
@newguy33X Possibly true, and if he walked out into the road in front of a bus, that would probably kill him too. But why would he want to stop??? (Anyway, even if he did, it's more likely that the model would simply crash as the pilot would no longer have control over its height via the elevators.)
What "more modern" way would you suggest? This is control-line flying, where the flying directly controls the aircraft via control wires...
@newguy33X The whole point is that the person in the middle is directly controlling the model. Modern technology gives us radio control (which Paul & I both fly) but that is entirely different to control-line. C/L can arguably be described as "old-fashioned" - let's call it "traditional"! I'm not aware of there ever having been an issue with a C/L flyer being killed or seriously injured by his own control lines, there are lots of other things in life far more dangerous that still carry on.
Interesting, but I would probably fall over my own feet and get 2.5 hp's worth of garrote travelling at 300+ kph do it's worst on my throat whilst tying me up to a post set in concrete. This definitely the hobby of the brave!
Weeoo Weeeo Weeeo !
i use to fly controline speed in the 70s
amazing how no one has much of an idea about how its done these days- I wonder what they would think of a dyna jet or if they saw a magnesuim pan catch on fire :)
super!!!
Heh, it's now a new thing. Folks have been having their own kind of crazy fun with this relatively safe pastime since the 1930's ;¬)
This is about the only way they can launch the first strand of a space elevator.
Geez someone needs to learn what an 'airplane' is. It doesn't matter if it is CL, RC or FF, or human carrying - not one single type of airplane can or will do everything well. Aircraft are a matter of compromises chosen to achieve one aspect very well. In the case of control line speed, the compromises will look odd. Single wing, one bladed props, minimal elevator surface, maybe even asymmetric, all work well and if you feel you can do better with a traditional planform, then build and compete.
Very cool! I'm wondering why you don't fly a larger radius, so you don't have to spin around so fast in the center?
you wouldn't get the speed because of the extra drag from the control lines
At what RPM is the motor turning?
wow
why the would you use a one bladed prop? unless its weighted so its not off balance
Ozzy brought me here, never knew this kind of thing exist, this is way too cool! And i noticed most playing adulta or in their 50s...
Around 39,000 rpm.
Whole video im just wondering how he keeps the line from hitting his neck
Did he have a special piston in that engine?
The whole engine is a "special" engine. It's not one you can buy at your local (or any!) model shop.
so if he stops running he is decapetaded?
WHOOSH
Охуительно интересно!
Good lord. How many revs is that motor hitting?
40,000 rpm
I see a new Olympic sport here.
Please feel free to come and demonstrate how you would do this. As for the record, it's since been beaten, but it's listed on the FAI website at fai (dot) org (slash) fai-record-file (slash) (query) recordId=15610. That's the site of the Fédération Aéronautique Internationale, the international governing body for aviation, not "some limey record book". (Sorry for mangling the FAI link - it seems you can't post actual links in these comments.)
i clocked in my jet pulse cl model at 184mph
Why doesnt the guy in the middle just hook the wire around the fork at the top of the pole and let the plane fly by itself, instead of running round in circles. Please explain.
the plane will crash instantly without a person the handle controls the flaps for up and down movement
Flaps are not used on control line. Elevator controls up and down.
Gnostic Brian that's what I ment to say but for that moment I forgot what is called thanks for correcting me
@johnpflyrc then why do we not see single blade props on real aircraft?
infact all modern aircraft have many many blanes in a turbine
Many motorgliders--particularly ones with deployable engines or electric motors--do, in fact, use one-bladed propellers, because the blade/counterweight unit neatly folds away when not needed.
335 км вот это да ну как он бегал вокруг вилки я понял что здесь серьёзно
.10.7...секунд ..12 кругов это вообще нечто...
@johnpflyrc And then there's that cavitation thing.
Techno or not you have to admit it looks funny.
Я думал что этим уже не занимаются...да предела нет ...
F2A is still run at the highest levels - Euro and World championships, and Paul is still cometing in this.
335.км .да уж вот это техника....
Wow! Alot of pent up anger huh?
should remote-control airplanes go single bladed if the hub was balanced?
Is that Napoleon Dynamite?
amazingly fast... but i gotta admit! it looks kinda silly seeing him running around in circles in there HeHe :) but impressive speed on the plane :D
I see why the pole is there.
its for timing purposes, if he held it without it being on the pole there is no way each lap would be the same distance.
@TestECull OK, that's your opinion, to which you are of course entitled. The FAI disagree with you though...
when you lasso a fly.
@TestECull Okay, okay, so you're physics-challenged. Centripetal acceleration is a vector, in this case pointing straight up the lines toward the pilot. Lift, on the other hand, must counter gravity, which is straight down. If the CL aircraft is flying at the same altitude or higher than the control handle, it's 100% aerodynamic lift holding the plane up.
Give it a try. Tie a weight to a rope, spin it around, and see if you can get it to swing higher than your hand, all the way around.
Hysterical
Ok... for theory... if they are using a 3 inch single blade, at around 39000RPM (as per one post)
With a square pitch (6 inch)... this equals a theoretical speed of 232mph, at 90% efficiency this comes to 209.59 mph..... 337km/hr, very nearly what the plane got (335kph)..... well done...
(not my sport, but I'm not to judge)
(Next go faster, (2 inch blade, 5 inch pitch, should get around 250-260mph...) )
Who knows I'm just guessing...
You don't win competitions by guessing
🤣🤣🤣🤣🤣🤣🤣👏🙌🏼 awesome!
Plot twist: he's the one making the noises.
@johnpflyrc ...Still not an airplane. It may be fast, it may hold a record, but it's not an airplane.
Maybe if you watched C/L stunt or C/L Combat or even C/L Goodyear racing where three planes are in the same circle. You are watching a very specialised version of C/L flying in speed racing, its not what C/L is really about, a bit like a dragster at Santa Pod is not really a car(but it is lol) but it can't go round corners or be driven on the road. Anyway It is a Tethered Airplane, it fly's in the air and its wing generates lift.
@@iamrocketray Get your panties untwisted, homeslice. That's an 11 year old comment you're spazzing out about. Also, just because it's not an airplane doesn't mean it's not bloody awesome to watch; a lot of things in this vast and varied hobby scarcely quality as 'airplane' but are six kinds of badass.
Take a chill pill and a water bottle out beneath the shade tree and watch some flyin' dude.
Get a brick and try whirling it around that radius. It made lift, ergo "plane".
Так это было в 2001..
You could make a will it blend vid out of this
It’s just a wing on a stick with a tiny piston lol
Why not duck instead of walking/jumping around the pole?
I guess to answer my own question, due to safety you’re probably not allowed to let it go so what I thought was the tether being locked to the pole, it just for hand placement.
@@agilis1 No, you're not allowed to let it go! Mostly this sort of flying is done with surrounding safety fencing. The purpose of the pole is to prevent 'whipping' during the timed laps. Notice how he whipped it during the early laps to get the motor up to the RPM where the tuned pipe kicked in.
@@agilis1 Its locked to the pole so that each lap is the same distance and the pilot can't effect the speed by whipping(cheating lol), which you saw the pilot do at the beginning to get the pipe on song.
just tie the cable to the pole...
It would crash because the Two cables are connected to a handle, the other end of the two cables are attached to a bell crank which is connected to the elevators, you have to constantly adjust the elevators to make it fly straight. They do attach tethered cars(another odd pastime) to the pole for the run because they run on the ground.
ha!HA! Ive just pi#sed me-self lauging!!!!
Each to their Own....
As for single blade RC planes have a look at 'nightflyyer' (youtube) he has single blade planes and helis....
You only need to balance the static mass of the rotor/prop
When at flying revs, the dynamic imbalance (hard to balance out without a closed loop controller) doesn't matter so much
Single blade IS=efficient
there is only so much power a single blade can soak.... tip speed problems... 6 inch blade on a plane at 208 mph Max RPM = 20490 for efficiency, more=waste.
No wings not a flying model?
Well I can see one wing, and it is quite clearly flying...
John Privett
it's NOT flyin with one wing, stabilized but not flying. Centrifugal force, no flying here
Ronin Pictures For most of the flight the model is flying slightly higher than the top of the pylon. If it's just centrifugal force then that would be impossible. Anyway, the Fédération Aéronautique Internationale (World Air Sports Federation) reckon it's flying, and that's good enough for me!
John Privett
just means it's able to control it's pitch, Take it off the lines, and no fly. but whatever you want to believe is fine lol
+Ronin Pictures theaviationist.com/2014/09/15/f-15-lands-with-one-wing/
It's flying as it is generating enough lift to increase in altitude. Pure centrifugal force would mean it would never get above the hand. Without lift pitch control would do nothing other then rotate the model.
@TestECull You lie, you lie. You didn't spin a weight around, all the way around the circle higher than the holding point. It's not physically possible without lift.
If the airplane is flying at the height of the control handle, or higher, it is in the air ONLY through aerodynamic lift. As for reading, you said "arrow".
Okay, so your definition of airplane is that it's stable when not connected to the line? That lets out ALL C/L craft. You're definitely in the minority on that opinion.
Щелкалину и Калмыкову привет! 🇷🇺🇷🇺🇷🇺🇷🇺🇷🇺