Having watched all of videos on the buildof this plane I can honestly say I've never seen a man with so much enthusiasm for what he did. I'm building a simple fiberglass kayak had I watch these videos before I started I would have changed many things. Lots of wisdom and knowledge in these videos. Thank you for sharing them.
Mike Arnold was a master of this trade! I had the privilege to get to know him for six or so years before he sadly passed away in 2015. He was an incredibly humble and a gem of a person. He made it clear even before one began to speak with him that he was NO engineer, and from what one saw, one could see that his work proved that he was far better than most engineers one knew. He was the one who could visualize the flow around a body without the need of wind-tunnels or CFD analysis. The AR5 aircraft that you see in the video won an FAI world record for the fastest aircraft powered by a propeller driven 60HP IC engine, and can be viewed at the Hiller museum at the San Carlos airport in the San Francisco bay area. He used to sell some of these videos using his website. Now that he's passed away, I believe that either one of his friends or his wife have decided to put these excellent videos online.
i really hope that his wife & friends change their minds. They have no idea what Mike Arnold has offered and what he can offer to so many people. You know, I just stumbled across these videos just last week. I cant stop watching them. I have been fiberglassing for about ten years and I still learned some things watching these videos. Its amazing how confident he is. And watching him with excitement and saying little things like, "that was fun", really just shows how much he loved what he did. R.I.P Mike Arnold and Thank You.
His use of a sort of area rule, which he applied to subsonic aircraft, has been applied around his AR5 and AR6. It is described in the "Why it goes so fast" video. Should someone have the interest in understanding it. Based on calculations that I've done using CFD 3D NS programs, it can be verified that area ruling works at subsonic at lower Re and not just at transonic/supersonic speeds.
Naresh, thank you for your posts on this site. We can all benefit from your insights. I believe you may be the only one alive (and if not the only one, among very few) with such firsthand knowledge of Michael’s work. The goal is to donate Michael’s videos to Hiller Aviation Museum in San Carlos where Michael’s AR-5 airplane is housed and to have the DVD’s reproduced and offered for sale. When that happens a notification will be posted here as well as on Michael’s web site, www.ar-5.com.
Sara, thank you for your kind words. I'm sure that once people put an effort in understanding his views that he's so amply described in his videos, they will come to all the same conclusions as I have. It will be great to donate the video's to Hiller Museum. I'm sure that all the visitors will enjoy them. Having put them online is also a great thing. It will make his work widely available.
Sara Arnold, I want to thank you or whomever posted these videos.Even as someone with years of experience they have taught me a lot.Hopefully he gets the recognition that he deserves because what he's accomplished was amazing. Now I'm not a aeronautical engineer either but I've studied and sat in on my share of courses.The reason I mentioned this is because in the one video,he managed to help me clearly understand something it had taken me years to try and learn and while I knew the principles I still could never visualize things.But in a matter of ten min of watching him it finally became clear.
watching him molding the AR-6 let me thinks he was like the Michellangelo of planes, a trully artist, it's so inspiring to watch this amazing videos! OMG....
This shop building still stands, according to Google Street View in March of 2020.Crockett CA, 702 2nd Ave, corner with Ceres Street. You can enter the door the plane was carried out of by visiting the Funkie Frog antique and curio store. The entry to Hwy 80 is the intersection of Pomona Street, just 2-1/2 blocks from 2nd, Hwy 80 heading 'eastbound', which is due north at this point. The other shop is on Wanda, at 3rd, around the corner a few blocks away. It is listed as a residence so I'll not mention the specific number. Rest in Peace, Mr. Arnold... thank you for the inspiration.
There actually was discussion about putting it into the Smithsonian right after the plane was built and Mike won the world speed record,. Not sure why it never materialized. I'm just grateful that it's in the Hiller Aviation Museum in San Carlos, California. You can find it listed on their web site as: "Arnold 1992 AR-5 Sport Monoplane". Unfortunately no photos of it on the Hiller web site.
I don't know if it's there or not, but this plane deserves to be in the Smithsonian Air and Space museum.I read about the AR-5 in one of my favorite mags years ago Flying... Private Pilot... Plane and Pilot. Can't remember which, but I do remember that I was totally amazed by it!
Wow that is a truly incredibly video, May be one day b4 I die I will find the way / time / money to make my flying wing and enjoy it as much as this dude!
Mike, Not sure if you're still around. I've seen the AR-5 many times at Hiller. Nice to know the story behind it, and watching you design, build, fly and repair it. Someday I want to learn to fly, and design/build a light sport plane. Regards, Tim Boles
Not the first or last time that a throttle linkage or a clamp or some insignificant part brings down an airplane. It probably should have been silver grazed but he used solder. Oops.
@@sblack48 I used to have a vintage motorcycle with a drum brake - and the lever arm to operate it had a soldered nipple on the end of a cable. That too failed one day....suddenly having no front brake approaching a fast-ish corner was very exciting!
reddogchi so Dehavilland Tiger Moths, vintage ww2 trainer biplanes, also had the same brake arrangement. There were other bits pillaged from british motorcycles. My friend restored one and had them silver brazed. Rock solid.
My guess he pulled it over just to look at the aircraft and then had to find something that needed correction so it didn’t seem like a curiosity stop. The guy sawing the board was because it was probably over all too wide.
I'm so sick and tired of airplanes wasting away in museums. The only thing museums "inspire" is boredom. Tourists go to museums, cameras hanging from their neck, snap pictures, go home, check off a box, and forget everything they saw. These beautiful aircraft need to stretch their wings and keep flying -- at airshows, etc. That would inspire people. Not boring museums and the boring people who go to them.
THANK YOU. Reminds me of Concordes sitting in museums. People wrongly claim Concorde can't make profit. But British gov has already taken the loss of initial production cost. Now that they already EXIST, the opportunity cost is ZERO. The only cost is maintenance, and the demand in today's world -- 30 years later and with Trump's booming economy -- will certainly exist.
One thing I don't understand, during the interview at about 32:40 they talk about feeling the laminar flow turn on and off, I don't understand what they mean by that. I' guess I'm showing my ignorance, I thought laminar flow was there or not, it wasn't something that might change with changes in power, speed or attitude.
Maybe a quite late reaction, but nonetheless. The AR-5 uses an NACA 65 series airfoil. This was a laminar flow airfoil designed by NACA (precursor of NASA) a long time ago. Laminar flow is a phenomenon that is present on all airfoils. However on some airfoils more than on other. The NACA 6 series all have what is called a drag bucket. This bucket is a decrease in drag due to the presence of laminar flow. When the angle of attack of the airfoil is increased beyond a critical value, roughly 6 to 7 degrees (depends on the airfoil) the flow transitions from laminar to turbulent. This results in a sharp increase in drag. As speed is decreased, angle of attack needs to be increased to maintain lift. So at slow speeds the flow is turbulent, and at higher speeds the flow becomes laminar. Due to the very low overall drag of the aircraft this change is more noticeable than on other aircraft.
It is very sensitive. It would change with reynolds number, which is a function of speed. If you get a laminar separation bubble it will reattach but drag goes way up. Formation of these bubbles can be a function of aoa. A lot of people get confused between laminar flow and attached flow. You can have laminar flow or turbulent flow, but both are attached i.e the flow has not separated, as in a stall. The difference is that turbulent flow is much more stable than laminar flow, less prone to separate, but the skin friction drag is much higher.
@G56AG To add to the great answers above, laminar flow on paper, theoretical, wind tunnel is not like real world. The short answer is laminar flow can be upset by rain or bugs for example which ruins laminar flow (which decreases lift and increases drag more than a conventional airfoil). Laminar wings are unforgiving of poor manufacturing fit, finish, smoothness and variation in airfoil shape.
Having watched all of videos on the buildof this plane I can honestly say I've never seen a man with so much enthusiasm for what he did. I'm building a simple fiberglass kayak had I watch these videos before I started I would have changed many things. Lots of wisdom and knowledge in these videos. Thank you for sharing them.
Mike Arnold was a master of this trade! I had the privilege to get to know him for six or so years before he sadly passed away in 2015. He was an incredibly humble and a gem of a person. He made it clear even before one began to speak with him that he was NO engineer, and from what one saw, one could see that his work proved that he was far better than most engineers one knew. He was the one who could visualize the flow around a body without the need of wind-tunnels or CFD analysis.
The AR5 aircraft that you see in the video won an FAI world record for the fastest aircraft powered by a propeller driven 60HP IC engine, and can be viewed at the Hiller museum at the San Carlos airport in the San Francisco bay area. He used to sell some of these videos using his website. Now that he's passed away, I believe that either one of his friends or his wife have decided to put these excellent videos online.
i really hope that his wife & friends change their minds. They have no idea what Mike Arnold has offered and what he can offer to so many people.
You know, I just stumbled across these videos just last week. I cant stop watching them. I have been fiberglassing for about ten years and I still learned some things watching these videos.
Its amazing how confident he is. And watching him with excitement and saying little things like, "that was fun", really just shows how much he loved what he did.
R.I.P Mike Arnold and Thank You.
His use of a sort of area rule, which he applied to subsonic aircraft, has been applied around his AR5 and AR6. It is described in the "Why it goes so fast" video. Should someone have the interest in understanding it. Based on calculations that I've done using CFD 3D NS programs, it can be verified that area ruling works at subsonic at lower Re and not just at transonic/supersonic speeds.
Naresh, thank you for your posts on this site. We can all benefit from your insights. I believe you may be the only one alive (and if not the only one, among very few) with such firsthand knowledge of Michael’s work.
The goal is to donate Michael’s videos to Hiller Aviation Museum in San Carlos where Michael’s AR-5 airplane is housed and to have the DVD’s reproduced and offered for sale. When that happens a notification will be posted here as well as on Michael’s web site, www.ar-5.com.
Sara, thank you for your kind words. I'm sure that once people put an effort in understanding his views that he's so amply described in his videos, they will come to all the same conclusions as I have.
It will be great to donate the video's to Hiller Museum. I'm sure that all the visitors will enjoy them. Having put them online is also a great thing. It will make his work widely available.
Sara Arnold,
I want to thank you or whomever posted these videos.Even as someone with years of experience they have taught me a lot.Hopefully he gets the recognition that he deserves because what he's accomplished was amazing.
Now I'm not a aeronautical engineer either but I've studied and sat in on my share of courses.The reason I mentioned this is because in the one video,he managed to help me clearly understand something it had taken me years to try and learn and while I knew the principles I still could never visualize things.But in a matter of ten min of watching him it finally became clear.
watching him molding the AR-6 let me thinks he was like the Michellangelo of planes, a trully artist, it's so inspiring to watch this amazing videos! OMG....
Fabulous. Simply fabulous. Thank you for putting these videos out here for everyone to see.
I enjoy these films so much,this guy was good at what he did
This shop building still stands, according to Google Street View in March of 2020.Crockett CA, 702 2nd Ave, corner with Ceres Street. You can enter the door the plane was carried out of by visiting the Funkie Frog antique and curio store. The entry to Hwy 80 is the intersection of Pomona Street, just 2-1/2 blocks from 2nd, Hwy 80 heading 'eastbound', which is due north at this point.
The other shop is on Wanda, at 3rd, around the corner a few blocks away. It is listed as a residence so I'll not mention the specific number. Rest in Peace, Mr. Arnold... thank you for the inspiration.
This man and his work is greatly inspiring stuff! Valuable stuff for me as a novice rc glider builder, recently hooked on composites!
Had no idea he passed. I purchased his videos years ago and marveled at how easy he made everything look. A genius imho
LEGENDARY!
Thank you for sharing this footage.
One the most awesome home builds I have ever seen and a record to back it up!! So sick!
so sorry to read that he passed away. love to gleam his vids for any information any insight to his build process. too bad hes gone.
I'm floored by these videos.
There actually was discussion about putting it into the Smithsonian right after the plane was built and Mike won the world speed record,. Not sure why it never materialized. I'm just grateful that it's in the Hiller Aviation Museum in San Carlos, California. You can find it listed on their web site as: "Arnold
1992
AR-5 Sport Monoplane". Unfortunately no photos of it on the Hiller web site.
Wow this awesome, I have a Rotax 582 sitting down stairs in my house. Can't believe what a small engine can do!
I don't know if it's there or not, but this plane deserves to be in the Smithsonian Air and Space museum.I read about the AR-5 in one of my favorite mags years ago Flying... Private Pilot... Plane and Pilot. Can't remember which, but I do remember that I was totally amazed by it!
You ROCK sir! I wish I could do 1/2 the stuff you do!! You are a stud!! Love all the video's!!!
Truck and trailer maybe a little overkill!?
The RV4 at 26:30 is just a bit larger but it needs a much larger engine than the AR5
If I recall correctly, the "race" propeller was a 50 dia by 70 pitch? Wow. What rpm did this prop turn? What were the other props used?
Someone should offer this plane in a kit!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Beautiful
Incredible airplane, wish there was a kit or even plans to build the plane. Unbelievable performance 😮
Educational! Thanks👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼❤️
@ 0:40: Javier Bardem as Anton Chigurh in the Film No Country for Old Men (2007). Having said that, Mike Arnold is highly respected!!
Was Mike Arnold ever awarded the Louis Bleriot medal? I wonder how influential the AR-6 was on any of the Nemesis aircraft.
What are the performance numbers, cruise, top, stall engine hp.?
Wow that is a truly incredibly video, May be one day b4 I die I will find the way / time / money to make my flying wing and enjoy it as much as this dude!
What year is it from?
2 questions, what happened in the crash, and why so quickly to a museum?
Exactly. See my other post. So sad to see planes waste away in museums.
What is the velocity never exceed speed?
It's in a museum? What? Tell me I've got that wrong? Ok yes but what an airplane, why haven't more of these been built?
Mr Mie ARNOLD was a genius but no one will remember his art :)
Wow, looks like a mini corsair...........
Mike,
Not sure if you're still around. I've seen the AR-5 many times at Hiller. Nice to know the story behind it, and watching you design, build, fly and repair it.
Someday I want to learn to fly, and design/build a light sport plane.
Regards, Tim Boles
Mike died in 2015
Beto Orouke is coming for your AR
F%k Off.
He looks like the actor Javier Bardem.
Thondup Andrugtsang no way! One is a hard working, privileged mind, the other just a commie.....
28:00 (or thereabouts) "Lube that runway!"
Resembles Snoopy ... Or Brian from Family Guy ..
This l'il bugger looks like a smallish "Reno Racer"...!!!!!
Looks like Corsair fuselage mimics the wings...
They were shaking hands back then. Guess no coronavirus then
Plandemie
I believe at some point this aircraft had crashed and needed repair - does anyone know what caused the accident?
Solder joint on a throttle cable
@@sblack48 Thanks! Such a small but important thing.....
Not the first or last time that a throttle linkage or a clamp or some insignificant part brings down an airplane. It probably should have been silver grazed but he used solder. Oops.
@@sblack48 I used to have a vintage motorcycle with a drum brake - and the lever arm to operate it had a soldered nipple on the end of a cable. That too failed one day....suddenly having no front brake approaching a fast-ish corner was very exciting!
reddogchi so Dehavilland Tiger Moths, vintage ww2 trainer biplanes, also had the same brake arrangement. There were other bits pillaged from british motorcycles. My friend restored one and had them silver brazed. Rock solid.
What was the cop so bent out of shape and frowning so much?
My guess he pulled it over just to look at the aircraft and then had to find something that needed correction so it didn’t seem like a curiosity stop. The guy sawing the board was because it was probably over all too wide.
I'm so sick and tired of airplanes wasting away in museums. The only thing museums "inspire" is boredom. Tourists go to museums, cameras hanging from their neck, snap pictures, go home, check off a box, and forget everything they saw. These beautiful aircraft need to stretch their wings and keep flying -- at airshows, etc. That would inspire people. Not boring museums and the boring people who go to them.
THANK YOU. Reminds me of Concordes sitting in museums. People wrongly claim Concorde can't make profit. But British gov has already taken the loss of initial production cost. Now that they already EXIST, the opportunity cost is ZERO. The only cost is maintenance, and the demand in today's world -- 30 years later and with Trump's booming economy -- will certainly exist.
One thing I don't understand, during the interview at about 32:40 they talk about feeling the laminar flow turn on and off, I don't understand what they mean by that. I' guess I'm showing my ignorance, I thought laminar flow was there or not, it wasn't something that might change with changes in power, speed or attitude.
Maybe a quite late reaction, but nonetheless. The AR-5 uses an NACA 65 series airfoil. This was a laminar flow airfoil designed by NACA (precursor of NASA) a long time ago. Laminar flow is a phenomenon that is present on all airfoils. However on some airfoils more than on other. The NACA 6 series all have what is called a drag bucket. This bucket is a decrease in drag due to the presence of laminar flow. When the angle of attack of the airfoil is increased beyond a critical value, roughly 6 to 7 degrees (depends on the airfoil) the flow transitions from laminar to turbulent. This results in a sharp increase in drag. As speed is decreased, angle of attack needs to be increased to maintain lift. So at slow speeds the flow is turbulent, and at higher speeds the flow becomes laminar. Due to the very low overall drag of the aircraft this change is more noticeable than on other aircraft.
Thanks for the info, I had been wondering this as well
It is very sensitive. It would change with reynolds number, which is a function of speed. If you get a laminar separation bubble it will reattach but drag goes way up. Formation of these bubbles can be a function of aoa. A lot of people get confused between laminar flow and attached flow. You can have laminar flow or turbulent flow, but both are attached i.e the flow has not separated, as in a stall. The difference is that turbulent flow is much more stable than laminar flow, less prone to separate, but the skin friction drag is much higher.
@G56AG To add to the great answers above, laminar flow on paper, theoretical, wind tunnel is not like real world. The short answer is laminar flow can be upset by rain or bugs for example which ruins laminar flow (which decreases lift and increases drag more than a conventional airfoil). Laminar wings are unforgiving of poor manufacturing fit, finish, smoothness and variation in airfoil shape.
How did he die? Semi to move a 500 lb plane?,!
C Riley - Wide load because of the horizontal stabilizer.
Cancer
Probably owned by a friend so it was free?
My husband, Michael Arnold, died from lung cancer in 2015.
@@sandraarnold8170form glass and composite material accumulation in lungs?