Really impressed with your plane, that Phazer is definitely a great option. Still planning on building one, I hope more guys like you keep pushing development forward.

I sold my Firestar II , I really regret that. I love yours ! Thanks for the videos.

Thank you for showing the pre-flight.

Your brother did a great job with the camera.

Actually perfect glideslope control with the corn, nice job!

My brother built a Kolb Ultrastar that I got to fly back in the 90s. Pretty exciting taking off with absolutely nothing around you. Really like how agile these are. Nice lookin’ too

Awesome work Ben

Great video! It was a pleasure meeting you at Osh. Looking forward to part 2 and am curious about the comparison with the VG's and without.

Love the videos of this thing. Recently put in a deposit for a Top Rudder Ruckus and am strongly considering a Phazer.

Hey man...you nailed it!!! Great!

Great job I like the ultralight aircraft

What a Superb machine. 4-stroke is the way to go 👍

Pretty good w/o flaps!

Woow 😱 awesome engineering.

One more subscriber, Rio de Janeiro, Brazil.

Second time reviewing this one. Checked out BKEnginnering and considering the Phazer for my Firestar.

Flaps on take off and landing will help! I usually start with them off on take off and pull them down just before it is ready to fly. Full flaps on landing and pull them off just as I touch down. You will have to play with it to see what works best for you and your airplane. Looks Good! Have FUN! Be Safe!

Your right it's light and runs at 80hp good option.

That’s AWESOME. I’m getting ready to buy a Rotax 912 UL...now I’m wondering...Tell us more about the VG’s. How did you determine where to place them?

Can you bring it around with a curving low approach over the corn field rather than a high over the trees with a standard box approach. Years back my Dad had to show a guy how to slip-skid his Kolb around super low and flat to get into a very very similar spot. Maybe not something you'd want to do very often but a skill builder that may come in handy one day.

Wonder how it'd be with a small canard on front fuselage... like cessna Katmai? At 7:05, looks like another runway. Nice flying country.

Hope there's a bit more of your Oshkosh to come! Phazer conversions - no place for amateurs. You're doing some programming [?], Ian is doing wiring, is it possible to get the whole thing together like that from various individuals, or even a one-stop shop, I'm guessing it's still too early for that, hopefully I'm wrong. Any advice? Thanks!

A caution do not hang the aircraft on the prop any longer than necessary (ie to clear an obstacle). I know I am stating the obvious. You are flying a high drag aircraft. In an engine failure the speed decay is rapid. Like you I am a very experienced pilot. 20,000 hours plus in my case. It looks impressive but it just takes just one engine failure… I know you train for proficiency, the nose down push required is very aggressive and difficult especially when the ground is rushing up. It is almost like a zero g maneuver from your Naval Aviator training. Excellent video and I am very interested in this power plant.

Wish you told us more about this engine. I believe a larger tailwheel might improve taxing. Is this an ultralight or light sport?

Nice. As a very light experimental aircraft, tail dragger no less, what kind of insurance pain are you feeling?

Great airplane. Have you seen the specs of a Zenith Air CH 701 ?

Sam Peachy...now there is a name from the past...Pennsylvania... Would be a nice trip for you...but too far for me..He calls me when I have a Kolb for sale. He could end up owning the FS II that I am about ready to paint..:-) MZ was Italian at one time...went to Canada and is now owned by the Chinese..Two dealers in the U.S. Parts are readily available so one dealer told me...Kansas City Area as I recall.. Prices are better than Hirth....near as I know..Gear boxes are clutched...at least on the Mosquito helicopter where they were used...Air cooled.electric start . This one started life on a Mosquito...Direct drive fan so I had to space the engine over an inch over the mounting plate to clear the engine mount round tube..

I wonder what the fuel burn an hour would be,probably 80mph cruise as well?

A little more practice and you'll make a fine pilot 😂 Good stuff 👍

What's the large tube make of? Aluminum, carbon fiber or steel?

YEET, I was like wtf does it say? 🤣

At what rpm/hp are you taking off at? What Speed? How many Hours on this Phaser Engine?

I'm pretty sure your brother Dan was my CFI years ago at LCC. I think I was one of his first students

What is cruise speed with the Phazer please? TIA.

Nice testing Ben. What would you say is the all up weight of the engine and gearbox? And what is the rated HP?

Is this a viable cross-country airplane, i.e, 300-400 mile distance?

Nice flying...Installed an MZ202 on my Firestar II project...63 hp at 6300 rpm...Electric start..Needs battery to operate since the Ign modules are 12 volt...looks to have a torque and Hp cross over at near 5k...would be nice to fly at those rpm's.. The Mz has a clutch and I am using a three blade ivo..medium... Strip is 700 feet and I have flown 4 Kolbs from it...Including your Firefly... Did you buy or make the vortex generators...I think I will add those before test flying... That last take off was before the shadow...Lot of interest at Oshkosh? Too bad there is no 4 stroker for the Firefly!!

Where can I purchase one of these airplanes? thanks

Where does OshKosh happen?

How fast is she with the 80 ?

Ben, If you had the time, I think you are good enough to compete in the STOL competitions. I would like to see a Firestar compete. I sold mine long ago, but I think yours would be competitive.

Outstanding! Are you going to be offering conversion kits or instructions. Guys would go nuts for this option!

what gearbox is on it? I was gonna put a 583 on my firestar ,yamaha is the way to go

so after getting off ground, what is the point of the high AOA ?

Ben, where did you get the motor mount for that motor to your Firestar? A guy has a twin star here for sale thats in good shape but has a 503 that is over due for service. Would the mount you use be the same for the twin star? Any info would be greatly appreciated. I might have seen you putting this motor on your plane, are you in Mi? Thanks John

More cat features!

Debería usar casco para los vídeo lo demás fabuloso avión

can you tell us what wheels are on it?

Where did you get the VG's?

Price?

How many hours on your motor now

how tall are you? I'm 6'4", just wondering if I'd fit in a Kolb

First couple of tries, I think maybe you were taking the term “chop the throttle“ a little too literally… it sounded to me like you just slowed the transition to idle by a few milliseconds, and you didn’t just drop so quickly… As I understand it that’s how Navy pilots snag the three wire… use pitch for airspeed, throttle for glide slope; or in your case, tassel-to-turf angle… ha-HAA! Also, pet peeve here - the plural of ‘foot’ is ‘feet’ … Just sayin … it would probably annoy you if I said “do you operate the rudder pedals with your foot?”… GOOD VIDEO…. I DO love me some Yamaha enginery .. or motorcycles, or PA speakers, or bass trombones, or 12 foot grand pianos, or snow skis, or drum sets, tennis rackets, or headphones… in fact, if Yamaha decided to buy all the rights to Toyota’s abandoned Avalon, and produce it in a Tesla style version of their own design (you know, smooth quiet comfortable reliable, a thousand ponies AND 0 to 60 in 1.9)… ok, that, and a standard issue 5/8 ton quad cab pickup, The rest of them might as well pack up and go home…

sweet powerplant. gotta say I detest the steep climb outs made so popular. One engine hickup and you are done. Lost a good friend to that nonsense. fly safe

check the gas lines !!!!!! lol

Bro give it to me😊

A) We aren’t “KZfaq”. B) I know a guy that died doing steep climb outs like you did. the engine died at 100’, nose over too far forward, landed upside down. There are old pilots. There are bold pilots. But there are no old, bold pilots. However, you do fly that thing well.

I know it's fun but don't abuse your equipment

These steep climb outs close to the ground are a bad idea… if that engine ever dies, it’s a fatal mistake. Nice airplane but please don’t become a twisted pile of metal… there is nothing to prove once the tires come off the ground, in a stol competition, that’s worth your life…

That is how stupid people end up dead !