Paramotor Vlog - EOS QUATTRO BETA - Part 2, flight tests

[@wayne.b2798]

Great first impression nicely done guys , i am a motor mechanic 38 years and back in 70s all 4 stroke engines had this simple breather system , the breather pipe should not be below the oil sump , this will siphon out the oil , the pipe should extend above the rocker box allowing the oil to run back in to the engine and let the air out but the pipe must be bigger and rocker box outlet to allow the process to work , if the pipe is to small it will just spit out the oil , i hope this will help if you want to mod your oil breather .

[@AnthonyVella]

Any other Americans here? Let’s get some 4 strokes over here!

[@weshoover986]

Yup, I'll take one! Get Anthony one of these for a desert beta test!

[@MarkLoves2Fly]

Hi Anthony! (>* I agree. Let's get some AWESOME electric motors here too. :D

[@manofsan]

Was that what you were shopping for at the Wal-Mart? 🤣

[@error.418]

I'm seriously interested, but it's definitely new territory for me. I love hearing how reliable the Bailey is and what a breeze it is for refueling on a long cross country (no oil mixing!). The thing I'm still wondering about is how all the 4-strokes have a declared time limit at max throttle due to heat issues. I'm not aware of that being the case for a 2-stroke. Obviously you can manage your throttle, but does this mean it's imperative on long journeys to consider a temp indicator to keep an eye on it and baby it? Just details I want to learn more about.

[@PARANOOB]

I've been flying one for over 2 years and honestly, its never crossed my mind. I don't have a temp/rpm meter either. Don't know if I've ever had my throttle pinned for 3 minutes, not noticed a problem if I have... When I asked for questions to include in this video, only one person asked that. I just wanted to include all the questions.

[@parabollox-darrel]

Tanks Paul, Nigel and Giles. Enjoyed both vids. The quattro looks promising,

[@vauxscott]

Great video there Paul, lots of good honest info in there. We really appreciate the effort you put in to make these videos, they don't happen themselves!

[@chrsfrwll]

"In short, I want one". Me too. Nice couple of videos, thanks.

[@moto-7]

Great review, a nice balance of stats and nerdy stuff from Giles and seat of the pants feel and overall impressions from yourself.

[@nur5ey1]

Great vid Mockers!! For a video of that length I expected to lose enthusiasm a little half way through but no chance, pardon the pun but the time flew past, with a barrage of extremely interesting info. How on earth did Monsieur Bailey manage to negate the decompression issue so effectively so many years ago is beyond me.. Well done again for an extremely interesting in depth look at a motor I would love to have when it's just that little bit more refined..and my bank balance is more appropriate!! 😳😉👍

[@tpj1959]

Thanks for the review. Pros and cons to the 4 stroke. Cons are slightly more right now. Surprised it was a rougher ride. Since we can only carry 5 gallons the fuel economy is important. So that is the big Pro.

[@stanRmeyer]

Quote,"in short I want one!" now that's the money statement!

[@robertcameron6500]

Really enjoyed both Part 1 & 2 of your reviews Paul, Looking forward to seeing the Quattro on general sale soon as they've addressed your criticisms, good job buddy..!

[@PARANOOB]

Cheers boss! It's a contender, dependent on reliability.

[@manofsan]

@@PARANOOB - did you need the same amount of hearing protection? How much less noise does it produce?

[@PARANOOB]

As the Bailey? I'd imagine so, more or less. Quieter and nicer than a two stroke either way. 👍

[@manofsan]

@@PARANOOB - have you heard any further word on it? I'd seen some more recent videos posted by a German fellow, but not much else. Has EOS given any announcements or news?

[@PARANOOB]

Not that I'm aware of. Been out of the game for a bit though..

[@clearprop]

A great part 2. It'll be interesting to see how the engine performs after a while out in circulation. Seems promising. 👍

[@ThomasGrillo]

Fingers crossed you eventually do get one. :) Enjoyed the video. The flying areas are beautiful! Thanks for the video.

[@Chris-Fennimore]

Thanks for the revue. Good info. Is there a Oil Filter on the crankcase? Power-fade maybe because of Altitude change, too. The higher you go , the less O2. If it is heat-related, then another means of cooling needs to be considered.

[@PARANOOB]

You know what, I didn't see a filter.... 😶 The fade happened at ground level too.. heating.

[@leolibre19]

Turn the carb heat off hehe lol.

[@brianhepworth4854]

"Said the vicar to the show girl" 😂🤣😂

[@66jayfly]

Really good informative review paul, really enjoyable and great honesty in your explanations. 👍

[@PARANOOB]

Thank you! Couldn't have done it without the usual suspects..

[@manofsan]

@@PARANOOB how would you say it compares with higher power 2-strokes? I always hear that 4-stroke is inherently inferior to 2-stroke on power-to-weight. It's hard to know who's right on this. Is this EOS Quattro engine worth waiting for? Or will one of the others like Tornado 280, or Vittorazi Moster Factory R be superior?

[@PARANOOB]

Hiya, thanks for watching! Depends what you mean by superior.. I've not flown a two-stroke myself, so the previous video is the best I can do for comparisons. Four strokes do have less power to weight as far as the engine is concerned, but they also burn a lot less fuel, so your take off weight for a given flight time could even be less. My Bailey burns approx 2.6 litres per hour, can fly for 4+ hours on a full tank, needs less maintenance, doesn't crack exhausts or burn pistons, sounds nicer, takes fuel straight from the pump etc etc. It weighs more, and is less powerful, but I only carry it on the ground and can climb 300fpm. I plan to get a Quattro as soon as they're available. 👍

[@PARANOOB]

If power to weight is your goal, then a two stroke will win every time. But like everything in paramotoring, it's give and take and compromise.

[@manofsan]

@@PARANOOB when is the Quattro likely to be available to ordinary customers?

[@northernskies]

Great Vid. Looks like the engine has a lot of potential,

[@snowexplorersaltitudeoff-r7758]

Great video! Can’t wait for more reviews👍

[@PARANOOB]

Thank you! Not my finest.. lol 😃

[@patrickmckowen2999]

Great couple of vids👍

[@PARANOOB]

Thanks for watching! 👍

[@TimPriestChannel]

Nice to see my mum's house from the sky. I reckon you should call it Rebecca! Want one too! Long Bailey...

[@paulgrover6364]

Great review, thanks fellas

[@Lontist]

Nice one Paul.

[@jameswaffle7604]

In my humble opinion, sometimes the thoughts and personal reflections of an inexperienced pilot can tell you as much about an engine as those with much more experience. Thanks to all of you! Cheers!

[@doctorbad]

Love the video! Nice to see someone flying PPG in-land in thermal conditions lol. I really like your flight deck, what brand is it?

[@PARANOOB]

Thank you!

[@PPGtrikepilot]

Paul, it would be interesting to see it fitted to a my Fresh Breeze BullIX trike A good solid unit see if that lessened the torque.

[@BrianTurboT]

Nice one guys ... looks promising :-)

[@Adrenalinspunk]

And when you say about more vibration i think its down to the rotating mass so heavier counter weights and also where it first on ever 4th stroke rather than ever second like a 2 stroke thats what id put it down to

[@UpcomingJedi]

Do these engines have a flywheel to smooth out the power strokes?

[@PARANOOB]

A propeller, I'd imagine...

[@Adrenalinspunk]

@@UpcomingJedi a flywheel mainly is to provide ignition timing and also to keep a smooth running operation so yeah

[@Adrenalinspunk]

@@UpcomingJedi its like if you imagine 2 flywheel either side the engine would run like a sowing machine 😂😂😂

[@Adrenalinspunk]

@@PARANOOB the prop yess being a rotational mass isnt heavy enough to smooth out the running of the engine

[@christopherclegg5682]

Its a 4 stroke so there will always be oil vapour in the breather. The fact that its a little milky is also due due the foaming effect of the vapour. On most motorcycle engines the breather is configured in such a way that the oil vapour condenses and most of it drains back into the motor, the balance is redirected back into the motor via the intake and is burnt off. The manufacturers of these small 4 stroke paramotor engines need to rethink the breathers.

[@Pilot_Marc]

Many thanks for this nice review of the prototype. Regarding the vibrations: not all comes from the engine. It would be interesting to see how it reacts with a three blade prop. On my Moster it makes a significant difference (never expected so much; video will follow but I don‘t know when I will get the time for the video ;-) ) Kind Regards, Marc

[@thpxs0554]

Long stroke 4strokes are inherently less smooth than ‘ over square’ bore/stroke engines, the piston speed is higher as it has to travel further than a shorter stroke engine for any RPM range, meaning the piston has more inertia that has to be reversed every time the piston changes direction. It’s not so easy to damp this out on a single cylinder. A shorter stroke wider bore is smoother and freer revving but a bit less torquey.

[@joseferrer8738]

I couldn't directly find what a Moster goes for in the UK though I got some idea comparing the Maverick frame only vs the base model. If I'm doing the math right the Quattro is a significant price premium. I could replace a half dozen broken exhausts for the price difference. Here's to hoping the price comes down soon after release.

[@PARANOOB]

4-strokes will always be more expensive than two strokes, there's more to them. You buy half the fuel, no oil, and you won't need to replace any cracked exhausts at all! 👍😉

[@joseferrer8738]

@@PARANOOB But if I'm not replacing brass bushings and broken exhausts am I really a paramotor pilot?

[@rich_vincent]

You can't buy truth! Thanks for the insights and the EOS looks promising. I'll be sticking with a 2 stroke for now though, purely for the smell !!

[@oz2742]

Good test and info. Hopefully when i am ready to buy my kit i will look at this, but then again would you recommend this machine for a complete noobie? looking forward to your next video. but before that i have another question, have you ever thought on doing altitude, ie. going very high?

[@PARANOOB]

As far as noobness goes, the frame is more important than the engine, and this is purely an engine test. I'd recommend something tough and cheap to repair for a first frame. I have no interest in altitude stuff. It's cold up there. :)

[@Adrenalinspunk]

There will all ways be oil coming out of the the breather its just the way the air carries the oil out threw the pipe oil will all ways sit on the baffle and be carried out from there

[@Adrenalinspunk]

Id be interested to know why they use such thick oil in this engine 20w50 very unusual and maybe you sould do a test with high octane fuel see how performs then as if they set the engine up on high octane fuel that also could contribute to the high rpm issue

[@leolibre19]

I the high viscosity oil is probably because is an air cooled highly load engine (as all aviation engines). All air cooled engines will always run hotter than liquid cooled engines, is no problem, is the way it is and they are design to withstand that. Because viscosity is inversely proportional to temperature (the higher the temperature, the lower the viscosity), so it's pretty common that air cooled engines use higher viscosity oils to compensate for that. In motorcyle it ia pretty standard 20w50 for air cooled twin cylinder engines (as the twin tends to operate hotter due to the increase airflow on the rear cylinder).

[@error.418]

You mention limit max thrust to 3 minutes. What is this limitation for a 2 stroke like the Moster? If I wanted to be in a constant climb for high altitude seeking, how will this affect such a goal?

[@PARANOOB]

I have no idea, you'd have to ask a 2 stroke pilot. 👍

[@error.418]

@@PARANOOB Hah, fair, thanks all the same. For the last question, though, that's aimed at the Quattro. If I wanted to be in a constant climb for high altitude seeking, how will this 3 minute limit affect such a goal? Blue skies!

[@PARANOOB]

I guess you'd have to back off the power occasionally.

[@fastfreddy19641]

Great. Top gear of the sky 😉

[@Brad-py7sj]

Is this motor any relation to the 4 stroke engine Scout Paramotors were talking about a couple of years ago?

[@PARANOOB]

Yep, same one.

[@mikecottingham2401]

I noticed in the spec sheet you showed in the video, that the engine requires 95 octane. The highest octane gas in the US is 91 octane. Do you have 95 octane at all your petrol stations in the UK? Not sure how I would find 95 octane in the US. Did you run 95 octane in the motor you were flying in the video?

[@PARANOOB]

Hi Mike, thanks for watching! Yes, all fuel in the uk is 95, 97/98 or 99 octane. I'd check with EOS about 91..

[@mikecottingham2401]

@@PARANOOB Wow, in the US we only have three octane options 87/89/91. Thanks for the info.

[@PARANOOB]

I guess that with the prices you pay, and the size of your engines, efficiency isn't a massive consideration. A gallon of 95 here would cost £5.30, $7.10.

[@chrisjokinen217]

@@mikecottingham2401 The US uses a different set of measurements than the rest of the world, as is tradition. It's the same fuel, just a different number

[@d.g.4745]

Is it available for purchase does anyone know?

[@PARANOOB]

Not yet, but close. 👍

[@parsmedberg5384]

One big bang two revolutions compared one bang half the power every revolution for the two stroke. Is this noticeable? Maybe an boxer four stroke would be smoother. Just thinking.... anyways great videos!

[@BlueMax333]

is this engine based on Kymoco scooter 250? Same rpm?

[@PARANOOB]

I believe so, but don't take my word for it..

[@jb8635]

Hi Paranoob I,m from Higham Ferrers used to to fly a parameter 10yrs ago just getting back in to the hobby again it would be good to chat I'm an ex fire fighter now work for Rushden Lakes

[@32laurens]

"Lockdown belly" LOL

[@Adrenalinspunk]

And in the way of top end fading its because of heat as that engine dosent really have big enough cooling fins to disposal of all that heat

[@UpcomingJedi]

They should simply water cool it

[@Adrenalinspunk]

@@UpcomingJedi thing is extra weight of all the water cooler gear wont really be worth it and they never did a gy6 liquid cool engine

[@IvoBELGIUM]

estimated date of release?

[@jacekgful]

Hi I'm from Poland Where can I buy such a PPG drive and at what price greetings

[@PARANOOB]

www.eos-engine.com/ Not yet though..

[@DougBow96]

Holy long video Batman!

[@PARANOOB]

Sorry! Cut it as much as I could..

[@DougBow96]

@@PARANOOB no worries I'll just need a second beverage 😄

[@xncc1701]

I reckon they need to ditch the clutch.. I think its not having the inertia of a prop during starting that makes it bite u occasionally rather than a dicky decompressor. great vid by the way!

[@PARANOOB]

Good point that. Thank you for the help! 👍❤

[@AdrianLeviAU]

How is it cooled?

[@stevenlarratt3638]

Air cooled

[@AdrianLeviAU]

@@stevenlarratt3638 does it have a radiator or cooling fins?

[@stevenlarratt3638]

@@AdrianLeviAU fins, most do on these units 2 and 4 stroke

[@PARANOOB]

Forced air cooled I think. My Bailey has a fan between the harness and engine.

[@claudiogiusto497]

Voglio anche io quel motore😂

[@mdmahadi6363]

How much sir

[@dirkbruenner]

a lower cockpit might be much more comfortable.... ; )

[@gaza66]

👍

[@grejen711]

First! Second Like! :D

[@UpcomingJedi]

I wish the test pilot would stop talking in flight as they repeat everything once they land. Another thin is to avoid all the pounding in the back, why not reduce the cylinder size and add another liquid cooled cylinder to smooth things instead of one giant air cooled laenmower single cylinder? It cant add THAT much weight overall doed it? Is the carb in a cooling deadspot causing the loss of power?

[@PARANOOB]

You want 30 minutes of flight with just engine sounds? There's other channels for that. 👍😉