Let's be honest, I don't think any of us believed you would be satisfied with the occasional burst of nitrous 😄 Can't wait for project turbo!

That go-go-gadget, solar-powered, dirtbike-carrying wing is an engineering marvel that still stuns me every time I see it.

I thought you might be interested in knowing that your efforts in increasing the aviation community have been effective, at least in my little world. I started watching your stuff six months ago. In that time I have become totally captivated with the idea of building my own airplane. As a result of your site, I started to look at others and came across several build sites that deal especially in building with wood. Since then, I have ordered a kit that will be delivered in April. I have built a completely flat and true work table, and am in the process of selecting and putting a deposit on an engine. My plan is to start the build this coming year and in the summer begin flight lessons. Ideally, I should have my sport certificate when I have the airplane done. When I look back on it, none of this would have happened had I not stumbled on your Scrappy build.Thank you Mike, you are an inspiration!

Cleetus McFarland comes by to visit, and you finally realize Scrappy needs turbos! Haha! Keep up the great work Mike, I can't wait to see Scrappy 2.0!

I knew you wouldn't be satisfied with the Nitrous and i was expecting that you would replace the engine with a 1000hp turboprop....but twin turbo sounds really cool as well, as it means we can see the true potential of this monster engine.

I am amazed at the kindness Mike shows. It’s safe to assume he is making limited revenue from KZfaq ads, then decides to just send gifts out. He donates like crazy and volunteers for all forms of tasks. Thank you for being such a great role model mike. You make this world a better place!

You’re a generous guy, Mike. Thanks for supporting and building the aviation community!

Thinking back to my days flying KC-10s and found myself wondering: what about two sets of ailerons? Inboard and outboard. The extra set only unlocks at full flap settings. That’s a common setup on larger aircraft and seems easier than having one massive aileron and expecting it to perform the same across all flight profiles. But I’m no engineer! I’ll greatly enjoy watching the upcoming aileron development. Back to work!

In several very high-performance sailplanes, flaps and ailerons come down together, until a certain point… then the ailerons come back up to neutral or slightly negative as the flaps keep going down. This increases roll control immensely. Maybe your last foot of aileron could do the same? Something to ponder, I think.

Merry Christmas to you and your family and the entire Patey clan. Thanks for your aviation awesomeness!

It would be so easy to say “its perfect” but that’s not you and that’s why we love you Mike! You are totally honest and we love that! I absolutely love the fact you are designing your own prop hub. If anyone else told me that I would say they are nuts 😂

Love these videos!! What about adding Vg's on the wings outboard area that would stop span wise flow and send some more air over the ailerons at lower speed? Your engineering from start to finish on this project is mind blowing! Hopefully I will see this flying over Lehi on the weekends. Keep up the great work... Back to work!!

This project is so cool. Time to watch another Scrappy Update!

The excitement I get from seeing a Mike Patey video is like the first time, every time.

Thanks for all that you do for aviation! And by the way I love my Best Tug! Thanks to you and your family for signing it! Steve F.

You are the most awesome engineer/designer in all aviation, Mike! I just am so sorry I'll never get to meet you. As a pensioner in Australia, many things are beyond my budget reach, but I simply adore everything you do! Oh, and I miss Draco! It would be awesome if you could get one of the plastic modelmaking companies to do a 1/48 scale plastic kit of the almighty Draco!

The RC Draco is a great flying plane. My friend bought 6 of them and gave me one. I I hope Horizon is able to copy Scrappy. For all of us RC Nuts to enjoy.

When Mike said he wanted to make a constant speed prop I didn’t know he was going to keep those awesome blades. 👍

Haven't even watched the video yet, and im already grinning from ear to ear. Love this guy. Love his videos.

I knew Scrappy was going to be a "work in progress". Mike is always innovating and improving. Loved the initial build series, and the upgrades and improvements are going to be awesome 👍

I know the issue with the Ailerons. I had the same issue with my Own-design homebuilt. Its nowhere near as hard core as Scrappy, but it has a wing with really nice low-speed characteristics. It was getting airborne well before full aileron effectiveness, so was tricky in crosswinds! In my case, a row of vortex generators on the leading edge in front of the ailerons sorted the issue pretty easily. making improvements down the track is absolutely normal for own-designs!

Love the bikes. Can't wait to see the constant speed unit for the prop. That'll be one more leap for Aviation.

Thanks for all you and Mark do for the love of aviation. Have a Merry Christmas and a most blessed new year!

I don't know if anyone but me will remember me joking about Scrappy being able to hover and take of like a VTOL craft when the prop was revealed - but I think reverse so Scrappy can back in like Draco would honestly be cooler. I also think the turbo plan is far smarter long term than the nitrous, especially with the altitudes Scrappy will be taking off at. And after seeing those DA figures, the electric bikes really make even more sense. Overall, nice job.

Awesome update. Love how slow and level Scrappy flies. Hopefully the larger ailerons are enough. But there's still the option of roll control spoilers, or mixing the ailerons into the split-flaps...

Greetings from South Africa. Love the new plans Mike, it's going to be awesome. I still feel there is such a big gap in your video's as you finished the plane off, would love a video on attaching the wings, finishing touches etc, and first flights. I know you were under pressure to get to Oshkosh, but if you have that footage, would love to see it. Can't wait for all your videos !!

Please come out with more flying videos. The videos from building your planes are always freaking amazing, but after so much "invested" time in building "with you" it would be amazing with some more flying videos. Cockpit FPV of you taking off / landing at different places, time to altitude, stall testing etc etc.

Thanks for your channel giving me so much enjoyment. I also got your SCRAPPY spar as a gift from my daughter and son in law proudly displayed in my living room. Always looking forward to your next video. Merry Christmas to you and all the Patey's

I was doing work when I got this alert. Gotta have my priorities. 😆😆 Merry Christmas Mike. I wish you and your family nothing but the best. Thanks SO much for sharing your life, your passion and your love of all things aviation! P.S. Scrappy is on my tree this year!!!

Missed your updates. Glad to see a video now and then gets me more and more motivated. Would love to hear/ see something about how you met garret/cleetus Both of you do so much to give back to the communities you are apart of.

Oh man! Made my evening to get back in touch! Merry Christmas everyone!

The referencing of Wheelie and the Chopper Bunch was great! I look forward to seeing these changes happen. Once again we'll get to see an already amazing aircraft get some major improvements. Thanks as always for bringing us along with you Mike and family.

Mike, you have been part of the inspiration that re-lit the fire under my ass to pursue my lifelong passion for aviation. I am taking my PPL check ride tomorrow, and have already passed my instrument written. I also finally got my Scrappy wing spar kit a few days ago! I've been showing it off to everyone. THANK YOU for your contagious passion and inspiration!

How does this vlog only have 269,000 subscribers??? Spread the word! I wish I was new to the channel, and got to binge watch the past videos!

I expect extending the ailerons would increase low-speed roll-control authority, but it seems a shame to change what works well at higher speed. I have a couple of alternate ideas. One is a flap-like extension of the ailerons that automatically deploys at airspeeds below 40 knots. That's still a weight penalty. Another is a flaperon modification of the flaps and slats that differentially changes the slat and flap extension in concert with the ailerons at low speed. (While relatively simple conceptually and mechanically, this requires replacing the flap motor with two servo motors and a control law computer system. I don't like the possibility of increased stall speed for the "down" wing.) My favorite idea is to use a pair of electrically driven tilting propellors tied to the ailerons. They could either be mounted on the wingtips similar to the V-22 tilt-rotor configuration, or attached directly to the ailerons in a pusher configuration to apply thrust with a vertical component equal to the aileron angle. At speeds above 40 knots, the blades would be feathered and angled parallel to the wings. To get more use out of this setup, speed control for the motors would have an input from the rudder pedals to augment low-speed yaw control. (I suppose a pusher configuration would be preferable for wing-tip motors as well since that would be less likely to perturb airflow over the wings and possibly cause unwanted separation.) I enjoyed this video and its predecessors; they're intellectually stimulating as well as entertaining. Thanks!

I literally started jumping up and down out of joy when I saw that you uploaded! I love watching your videos and cannot wait to see all of the new modifications come into service on Scrappy. Especially excited about the reverse pitch prop! That was probably my favorite part of watching Draco!

Yay!

Can't wait to see how many "Scrappy" features there will be utilized on Draco-X when or if it gets built! I'm quite sure that if Draco had had the adjustable undercarriage, it wouldn't or probably wouldn't be lying as a scrap heap. Saying that Scrappy is the most fabulous and innovative plane I've ever seen. Burt Rutan has got some stiff competition here!

Thank you so much for the amazing gift guys!!!! Love the scrappy spars and the extra goodies . Merry Christmas everyone and all the best in the new year

Love the whole project and your craftsmanship. All I want for Christmas is more videos of the build and the test flights. If you have the video, can't you delegate someone to edit it and post it?

Merry Christmas to all of you and your Families. God Bless 🎆 🎄

I thought I was dreaming when I got the alert for this video. 😂 Mike, great to see you back in the hanger. Definitely ready to see more of your genius at work. Happy Holidays to you and your awesome family. Thank you for all you do for the great aviation community. 🤘🇺🇸🛩️

Super stoked! Love all that you do for aviation!

So much fun you had designing and building those wings. Congrats.

Mike Patey, love you and love your videos! You have inspired me to chase my childhood dreams of flying that I had previously given up on. I am 47 and determined to get my pilot’s license within the next two years. Hope to see Scrapy in Valdez Alaska at our fly in!!!

You and your team are an inspiration to us all! Everytime I watch your videos I think, "This is what KZfaq is all about!" You keep pushing me into signing up for that first flight. A few times over the last 20 odd years I backed off due to family priorities. Maybe, just maybe it's time! R/C only gets me so far! Thanks for all you do!

Mike have a Happy Christmas for you and your family and I really look forward to the New Year improvements on Scrappy! Fly Safe!

It is so thrilling to see Scrappy fly and the changes you will be making. Having watched this aircraft from its infancy to today has been a wonderful journey. Thanks, Mike.

Man I have missed these videos Scrappy is looking stout. I had to go through 4 surguries after I crashed my dirtbike racing Hangtown motocross track. I would say be careful on your dirtbikes but that would be boring, lol. Happy Holidays, Patey Family.

I can only imagine how much engineering is going into building your own prop mechanism. If there's anyone who can DIY that, it's you. Absolutely crazy capabilities you've built up and I just love seeing you make such great use of all your skills.

NO stick pressure change when deploying all the trick stuff, that right there is amazing!

"I can't believe how slow it flies" exactly my first thought that first time I saw you land Scrappy. That shot of Scrappy "on station" against the wind blew my mind with the possabilities of "search and rescue". Yes "air flow design" is pure genious, the human mind + the power of computing! Thank you Mike. Kind regards, Malcolm, Australia.

In my knowledge range of aeroplanes, which is zero, it sounds more like it needs a flap on the wing tips. Max leverage. Or, falls right behind the prop, so when you pull the loud lever you have most surface control, but in a local area. *anyhoo, bloody chuffed you built the aeroplane of your dreams :D

So awesome!

Merry Christmas Mike and all of the Patey family.

I am looking forward to some future where we get to see some big epic Alaska adventures. I hope to see a moose,sheep or cooler of salmon on a dirt bike mount at some point! Love that wing design!

I have my ppl checkride on the 15th of January, thank you for the inspiring content and awesome engineering.

Your ear to ear grin is on your face 24/7. Not just when you fly. Obviously few of us here can see that, but it's apparent. It's your signature and it's very admirable.

Got my ornament hanging on the tree already! Couldn't order fast enough when I got the email!

Your spindle is still hollow! Water/dust/crud can travel down the inside of your spindle into your wheel bearings! Love your work! Thanks for the update!

Merry Christmas, Mike and family

Great to see you Mike. Merry Christmas to you and your family 🙏🏻🎄

Mike, I personally want to thank you for all what you done for me. Yes I received just a few days ago your Scrappy kit. And I am thankful I have a real piece I can look at to remind myself to never give up and do keep advancing. I hope I can someday somehow repay you what you done for me personally with your videos. Thank you again and Merry Christmas and Happy New Year to you your Family and friends. And please don't forget to screw over the IRS because those gifts are a tax write off.

Awesome… I was wondering about some of the things you’re gonna upgrade…. All makes sense, can’t wait to see your variable prop design! Hope all you guys have a great holidays.

Now onto a twin with twins. I was looking at diesel power and maintaining full power to 30FL with around 80 Inches. Using twins but compounded with a manual turbo bypass and TurboSmart SG-050 straight through electric butterfly valve wastegates with manual backups. If you lose a turbo, you'll still have some power at altitude. Probably not the kind of complex system you would want for scrappy lol. I'm thinking about ultra low drag, high speed, high altitude twin i6 diesels with BSFC under 0.400 per hp with counter-rotating pushers on the tail. Baby Duramax 3.0L is what I'm looking at. See how they are doing in a few more years. Winberg Cranks, Oliver Rods, Wiseco Pistons and ARP Studs everywhere. Valves? TBD.

Like so many, I am in awe of you, your brother’s, your wife’s and your sons’ intellect, passion, and drive. Thank you so much. (I bend aluminum on a B-17G and am guided by drawings made 80 years ago.). I am grateful to be guided by engineers from decades past. I think the richest evening imaginable would be you, Orville, and Wilbur in the same room for about three and a half hours…

Mike, your charity towards the aviation community is awesome! You deserve a medal pal.

Congrats to the winners So jealous!

This is badass!!!

Mike, you are a wonderful and generous person! An aviation genius with a BIG heart! Thank you!

Very cool. I'd love to stop in and see it sometime.

👍Was just thinking about you today. Thought you're likely taking a break from work since it's the holidays coming up. Yet that only means you're busy working. Understand completely about giving steadfast numbers. Everything is relative. I've never been a fan of but intermittent power of nitrous plus when the bottle's gone so is the power. Can't wait to see the constant speed unit for that propeller. That will be one more nice addition to Aviation. Thanks again Mike stay safe and enjoy after all life is what we make of it. 🤠🐂🏞️🛩️

Nice ! Mike Happy Holidays to you and the family... Great new video and all your videos, 6.3 likes and no dislikes amazing Got one question and do wonder if you had both airplanes how would you use them for different backcountry outings?

Glad to see you again! Hope things are going well. From my family to yours, Happy Holidays and Merry Christmas.

I went to your shop and the Draco ornaments are already sold out! That's amazing! A great update and thank you for being so honest about the positives and negatives you've experienced with Scrappy. Now, how about an RC Scrappy....

Wow Mike I simply can not believe that you took a crashed cub and turned it into arguably the best, most complex and versatile STOL aircraft in the world. You have been a huge inspiration for me and you never cease to amaze me with you incredible aeronautical marvels. I would love to see the turbos on scrappy and cannot wait to see its peak performance. Keep up the incredible work and whats more could you please shed a little more light on Draco x. Thank you so much for you time.

Merry Christmas to you Mike & family....An may God Bless you and yours...!

May You & all your family, have a Safe & Joyous Holiday Season!

I love these videos! Inspiring to us engineers!!

Thank you for the update, Have missed your videos, but sometime even you just have to go "Back To Work" it is understood. Mr. Mike you are such a good person and I wish you and your family all the best, and have a Merry Christmas.......:-)

Good holidays, folks🙂

I just recieved my Scrappy Spars just in time for Christmas they are so cool ,they are the perfect completion to my desk ! Thanks Mike !

Scrappy is just a such a great airplane. Merry Christmas to you and your family and of course Ron.

for the propeller control.. are you going to put a spur gear around the hub with a bolt on second gear housing to complete the pump.. allowing you to easily inspect the drive gear sides and the complete driven gear by just unbolting the cover.. the oil around the hub where the main drive gear is also cools the hub and housing. oversizing the case opening for the driven gear housing could allow you to machine a larger driven gear or a smaller driven gear and housing if the oil flow is not correct .. without redesigning the main housing. shims to change gear clearance between the drive and driven gear.. bearings.. double row ball bearing up front.. self aligning roller bearing on the rear (barrel shaped roller) as that will probably handle the side loads better as are exerted by the prop and which ever drive you have..

Awesome Channel ! Love your get back to work sticker 👍🏼 Merry Christmas

Thanks for the update!

I hope you switch to a three blade prop on Scrappy. Would look awesome. That is the plan i have for my RC Scrappy which is in progress right now. First few videos are already on my channel :o) Wish you great holidays!

Merry Christmas to you and Yours and a Happy New Year.

For the roll control - in RWD-9, in 1933 the constructors made interceptors activated mechanically when l.e. slats were opened. They needed it for low-speed trial in Challenge 1934. At first it was 100x8 cm in size, but the aircraft was drastically too sensitive and the proper size appeared to be 25x4 cm. By the way, the pilot did not control the wing except for ailerons, slats were sucked out at low speeds and by mechanical connection they were extending the flaps. Plus this interceptor activation. Ah, and drooping ailerons were there too.

I am to bad with health to be in what you guys do But I TRULY love the channel because of your excitment of what you do. And how you love your fans. Merry Christmas to all your family and friends. To the people that are not talked about much is the camera man -woman thank you for outstanding videos I know it takes a lot to film and make it work. THANKS

Hope you don’t mind me offering this thought. Instead of extending the aileron, is there a way to take a bleed from any of these; engine or prop wash or electric compressor and blowing it over existing aileron at low speeds only?Kind of reverse of the Formula 1 blown defuser.

Can't wait to see you turbo this! Engine control on aircraft seems to be a bit lacking, Someone needs to do an Aviation firmware package for the Motec M1 ECU's would love to see what you could do with that tech!

Awesome looking airplane. And the lowering idea is amazing!

A couple too many great ideas tried all at once. My greatest wish is you allow (or design) a Partey Twin Wing for RV aircraft. Longer, thinner, and able to land 15 knots slower while increasing miles per gallon at cruise and top speed to a degree that seems incredible

Just wanted to thank you from afar. I grew up around airports and GA as my dad flew cubs and huskies for a living. Spent summers in hangars helping our local A&P repaint planes. Read every aviation book in the house and our library but circumstances and other aspirations kept me from learning how to fly. Your content has really helped to "re" spark my interest in aviation. Finally kind of have the means to pursue at the young age of 54. Picked up a 150 a couple of months ago and am now taking lessons (a whole whopping 5 hours at this point...lol). Keep the content coming. Just your vids alone are sparking interest out there. Now If I could figure how to fit my Pivot MTB in the back of the 150, I'd be set :). Great stuff. Keep it up.

I’ll I want for Christmas is the Mike Patey teaches experimental aircraft design in solidworks masterclass .

Great to have gotten the Scrappy spar components here in Ireland for Christmas - Thanks Mike

Thank you Mike. I love your channel and learn from each genius laden video. I am so happy to support your efforts because I love aviation so much, yet I can't get a license because I am diabetic. So I live vicariously through KZfaq aviation videos. I got the spar from your site along with a shirt. Thanks again brother.

At 75, I am a disabled Vietnam Vet. I live near the Nut Tree airport in Vacaville, CA. North of Travis AFB. If you are ever in the neighborhood, I would love to visit Scrappy!!

I received my spar pieces just last week.. Very nicely done! Watching the spar test video and gaining the knowledge shared thru that alone was worth the money. I got a chance to see Scrappy first hand at Oshkosh, and she's absolutely gorgeous. Glad to hear she's flying as well or better than expected. It would be nice if you could find a simple way to accelerate the air over the ailerons/outboard area of the wing as opposed to having to redesign/rebuild.. but maybe a different airfoil shape on them will work best. Don't know.. not an engineer!