You guys were right! The Ultralight Airbike Is DIALED in! 

I hate those ppc's , had a friend of mine die in one... He flew through a micro downburst and was never able to recover because the chute collapsed..

Awesome update! Working the problem with all available resources! It's physics, math, science and sometimes a dash of SWAG methodology!! to paraphrase another well known pilot guy....

Omg you guys had a baby 😅❤

Ide love to see more ppc and ppg content!!! Your vids are great!!

You might find that a spinner on that prop, my alter the characteristics of the cooling of the cylinder heads might be worth a try if you have one ?

a PT-6 would solve all the issues ..call Patey

*We told you "TOO MUCH PITCH".* Live and learn.

good video, nice seeing the whole family.... yeah, keep the videos coming especially anything flying!

I been screaming in comments " too lean" :) finally

Hi Jonas. Been watching for a few years and have decided to give my "two cents worth", Strap in. Tail wheel aircraft have there directional tires forward of the center of mass. (lifting the tail of high wing aircraft move's the CofG closer to the tires reducing the swing ) Picture from overhead the Bike moving forward, It starts to turn left, this moves the CofG to the right loading the right tire and unloading the left .the CofG resisting the change in direction pushes to the right swinging the tail further into the turn , Ground loop. The tire with the greater load (grip) has more control than the lightly loaded tire. If the right tire is pointed to the left (toe in ) when it is loaded up this will INCREASE the speed of the swing. If the right tire is pointed to the right (toe out ) when it is loaded up this will DECREASE the speed of the swing. Toe out is a must for tail wheel aircraft. Easy test is lower the tire pressure way down ( Half flat ) and taxi at the speed you have trouble. The low pressure removes the tires ability to steer the aircraft into a swing. It will still ground loop but the speed of any reaction will be much slower. Nose wheel aircraft NEED toe in The fix is lots of toe out . My Zodiac 601 had 3 Deg of toe in , It now has 5 Deg out , PIG to placid. Lets not start on the camber change. If you want to take advice from someone you don't know, has no known experience on the subject , from a country that drives on the wrong side of the road, And you don't mind Facebook fact's (General internet bulls*^t) Start at 3 deg each side (6 total) toe out. Try low tire pressure first. Steve🙃

GREAT JONAS and family! good to see all is well! Dont prang your prop!

Hey y'all! Beautiful baby... you're so blessed. (Both of'em). Great that the issue finally resolved. Know that'll make you happy. I enjoy your videos so just about wherever you take us works for me. Thanks for sharing.🙂👍🤔🇺🇸 ⚘

Toe the main gear wheels out a little. It will tame the squirrelieness on landing. My KF 3 had the same problem. 1/8 shims in each wheel made it a completely different experience on landing. I no longer sweat the pavement.

Dude! You got a link to where I can get those tiers? They would do awesome on my trike!

That's the cutest cub I have ever seen. Enjoy every single minute, they grow up way too fast.

Take time to be the good husband and daddy.

NICE ONE Jonas. Got to fo a baby plane now 😅😊

So your ultralight was trying to be a helicopter, and beat the air into submission. Lol.

Of course we want more.watching real people do fun stuff is so inspiring for me and my kids thank you.

Nothing like laughing over a crazy PPC ride with some buddies having some Good & Plenty's lol. Always keeping it real Jonas that is what i love about you and your family and channel truly great authentic people. Every time i watch i miss it there in Idaho so many good people and beautiful country

Single carb intake manifold sucks an changes the air flow. Get 2 carbs an more power .

likes here! :)

Thanks for putting a little more of Ava and Sylvia in this one.... although Ava appeared to be trying to tell you that she was tired of just standing in front of some camera when "WE could be PLAYING in the living room, Dad" ! .... And why on earth you're talking to that dumb camera when me and you and Mom COULD BE.....P L A Y ING is beyond me???! ! !

*You made my favorite videos during the time you first met Silva and were flying around dating. They where the BEST!*

I would have found stock jetting numbers an started from there. Then new spark plugs an run the old Caster oil mix 40 to 1 or so on the can. Run wide open for a minute,turn off when open. CK plug. Adjust for color. They make gas ratiometers.

time for the pumpkins

Explore your glide, then when, not if, it quits, you'll know what to expect. I was more impressed with that landing gear. Nice job on that.Glad you got that engine figured out.

Yea, PPC’s & turbulence do not go well together at all!! Had the nose of mine doing figure 8’s once, after a morning cross country & the thermals started earlier than expected at 9:30 & I had to try to land in those conditions?! 🤢🤢🤢 😬😬😬😬😬😬 Stuck the landing & nothing broke, at least not that time! Yikes!!!!

Jonas, ref your carb and mixture probs. Two strokes are affected by the oil mix. Contrary to popular belief more oil is not good! More oil weakens the mixture because it doesn’t burn like gasoline. Learned this years ago when Yamaha racing two stroke motorcycles would seize at the drop of a hat because riders would “add a drop more oil to be on the safe side” Stu the PBO engine whisperer

I may be wrong due to your engine being a 2 stroke, but i never worry about EGT. Only CHT. Unless you have a turbo you are worrying about melting, high EGT temps don't really mean anything. Mike Busch has some excellent videos on EGT's and why they're not a good or reliable measurement for engine operations. CHT's should be the primary focus in determining engine operations.

Probably smart bit to be SUPER confident in that engine

Off topic question for you. How much performance would you lose if you muffled that engine to run as quietly as a car???

Here is something else to think about. Back in the 90s, we had a VERY active UL forum on Yahoo. I remember the graybeards in the hobby recommending keeping the RPMs lower than what you are running. Obviously it depends on the weight of the plane and pilot, and how draggy the plane is, but I remember it was said to be best to keep the rpms no higher than 63-6400 on take off, and to pull it back further as soon as safe to do so. If you could pull the rpms down to 6000 or a bit less in level flight, so much the better. The reason is that the big end of the rod is the failure point. The harder you run the engine, the sooner it will wear out. The worst case often described as an example was the guys flying powered parachutes. They would run the engines so hard they could wear them out in 200 hours or less. I would think this Airbike is fairly light, and probably is fairly high drag. Only you know how it feels flying it. I can't help but wonder if the prop is the best choice for the aircraft, a lot of the ULs ran a large diameter wood prop. Other Airbike owners would be the best to opine on that.

Climbing cylinder head temp difference could be from the steep angle of attack. As someone else said a proper spinner will help reduce the size of the disturbed air behind the prop.

Remember one important thing about a two stroke, run it like you stole it I have hundreds of hours behind them and I would still trust my life with them.

Ya man! Glad you got it figured. I hate troubleshooting when it seems like you can't solve the issue.

Daughter’s getting ready to take over her Daddy’s channel!

i was looking into PPC but Im afraid they cant handle any wind? Id love to see a video and your comment about PPC, should I just stick with ULs and PPG trikes? Im trying to find the safest afforadable flight? PPC or PPG or ULs?

Hmm pls stick to fixed wing… PPC have too much potential for problems that are out of your control. We (and your family) need you in one piece 👍

this air bike is the answer to a childhood dream ..I always wanted to make a model airplane big enough to ride on ...and this is literally it .. ya gotta love it ..!

Hope your not loosing a crankshaft bearing , be careful, I worked on a lot of snowmobile engines and you might be putting a band aid on a problem!!

Hello from Minnesota! Great episode!

yes...would love to see a PPC video!

Can it still even be called an Airbike? Lots of mods on it.

Next ultralight upgrade project: swap out 2-stroke engine for 2-cylinder Predator 670cc 4-stroke! We've seen the Legal Eagle with a Briggs & Stratton 4-stroke. Let's see you guys workout putting a superior engine (IMHO) on your Airbike!

Woo!

Already telling dad no lol to funny.

@2:15 the plane on the taxi we was almost going as fast as you were🤣 Btw the only two engine outs I've ever had were in two strokes. You've probably got about 10 hours on that thing now, you're at TBO 🤣

I say ditch the PPC. Fly the electric. Seems a lot safer than the PPC

No video on powered chute please.

Yeah, you should do a video on the PPC

OH HELL NO!!

Beautiful family, little ultralight is coming along nicely.

Jonas, you know I love ya bro. Please leave those damn powered chutes alone and stick to things that are meant to fly and not fall from the sky. So happy for you getting the Air Bike worked out!!! You’re family is sooooooo cute btw!!! Be safe!🤠

Glad to see you got it figured out.

I'm amazed that aircraft is legal, it's just the look of it, it looks like such a death trap.

PPCs are truly wild

What could cure Airbike squirlyness? Bigger tail, longer fuselage, tail cone covering?

Edit: Re-phrasing: Please be safe. Sorry.

You should check out the (200 dollar airplane flying high)😅 I believe jonas your just over thinking things to much.😂

What kind of engine you are using how much cylinder and the weight of the engine how much powerhorse and maximum rpm

New project…I reckon you’re building a powered parachute trike with 2 seats.

With so many powered parachutes failures on the web, I'd encourage you to stick with fixed wing airplanes, remember, you have a young family that depends on you're being alive.

Sense there is only one carbonator and the manifold splits to the two cylinders, they should both have the same fuel/air ratio regardless of the angle. However, on climb out, your angle of attack is increased and the airflow for cooling is not the same as it is in level flight, I believe this is causing your cylinder head temp difference on climb out.

I love watching your video bro i also am interested in building my own ultra light plane just that in Africa we lake support and materials if i would get that chance i wish to build one for myself

Now you need to align the main gear, looks like your toe is out of spec, should have 0-1/8" of toe in between the mains

The steerable tailwheel is most of your directional control on the ground.

No I don't want you to fly that PPC again. LoL but I was totally there with you the moment you got the perfect climbout....it turned into a little bushplane!

if one cylinder is cooler than the other it is because you have only one carburator, there is resonance in the intake at some frequency that do not equalize cylinder flux maybe, but should not be the case à all RPM's.

Was the passenger in the PPC a CFI? You need to be endorsed to fly a two seater, and it has to be N numbered just like any light sport aircraft. Treat the throttle like an elevator, pull back to go up, push to go down. I've been flying these over 5 years now. Super safe, super fun! Glad you got the air bike sorted out. ;)

😎

Glad to see it finally running for you

Great piece of detective work, glad you've got a result for this baby at last!

You need an aircraft to take the whole family on backcountry adventures now!

Yes, do a PPC video . Thanks!

Jonas just keep clear of anything that is completely opposite to what you have flown before. Under instruction I lost control of a weight shift and hit the deck. Two years in a wheel chair! Four years later got my ticket back and that was 13 years ago.. stick to conventional planes.. You got a great wife and lovely kid 😂😂😂

Parachutes or planes it’s all good

Awesome you got it tuned perfect!

Yes PPC please, been up in a few...

More PPC, fly all the things

Dang it Jonas, now I want one.

Please do a PPC video!!

Great job Jonas’

Awesome ❤

Love to see you doing what your passion drives you to do. Never give up on that. Life is to short. You have a beautiful family enjoy that as well. Can’t wait to see your next adventure. Fly high, fly straight!

I would love to see more videos. Whether it’s a powered parachute or a gravity powered pumpkin, you have a way of making everything interesting and fun! And you still have all of your fingers.

Absolutely do a video on the powered parachute. You need two more children to let you know how busy you can really be

She really wants to get in a plane, let her go!

Of course we want a PP video, we want all the videos!