Відео

I agree with you on many points. Not to knock the DA and crew, they are clearly standout people and adept with modern CAD and CNC prototyping. I've also been critical and had comments vanish. I try to be positive and compliment Sandwich, have thus gotten away with some criticism. Every which way I ran the numbers, you could only expect to see 275mph if you counted 100% pressure recovery ram air, at sea level. OR ran numbers based on the Turbocharged UL520T (220hp up to 15kft) then, it's a 300+mph airplane flat-out. But a 180hp engine at 75% power is not easily going 275mph. This would be a Reno IF1 racer level of drag (same wing area) but side x side with a bulbous canopy? No way. The UL series is a favorite for EAAers in Australia and NZ. Those folks love them and have worked out most of the issues over the last decade. The EFI, modern piston and cylinder head design are improvements to the Lycomings. Their power to weight ratio is significantly better, partly due to lighter weight and also due to attaining their respectable 200 Horsepower at a very high 3,300rpm. Although 185hp at 3,000 is the official "rated" or normal range. Their decision to include a split-rudder/airbrake leaves a few ?? as that airplane is designed around the air master constant speed prop, which is an effective air brake when switched into max rpm and throttled back. Their airfoil choice does not appear to be a later NLF design, it looks like it might actually be a 66-series. Or possibly pulled from the Lancair IV. A better airfoil would have been John Roncz/John Sharps Nemesis. Which is a de-cambered NLF-0414F, having its low drag range brought down for lower wing loading or higher speed, reduced moment, and retains the bulged leading edge for improved lift and better stall. (I have these ordinates on file). Their sharp, straight-tapered leading edge wing looks iffy in this regard. Although the conservative taper ratio which appears to be 0.8 or 0.75 will behave fine, even without much washout, and a poor airfoil choice. Overall, I like what they are doing, but I don't think it will "cruise" at 275 with that specific engine (non-turbo). Unless they are planning on winding it up to 3,300rpm/200hp plus around +10% due to ram air pressure ratio rise. Take 220hp up to 0.75 Density altitude and you *might* crack 275, maybe. But probably not at full fuel weight, and definitely not going to cruise long distance at a speed well above "normal rated" rpm. Can't wait for the rest of your critiques. You certainly have the background to form a well informed opinion.

I just tore down my Buck Mark after approx 250 rounds and there was a lot of powder residue up under the slide and spring block. You just need to have allen wrenches in shooting bag and snug up those screws before every shoot. Could use some blue Locktite as well.

I feel at ease. I feel better automatically and I think I can bring joy to many people! Hmm.......If something difficult happens, something good will definitely happen. Even if what you are doing right now is difficult, you can definitely do it. A very difficult trial is the best teacher. If you don't have challenges in life, you can't fail, but you can't achieve success either. Don't be afraid of failure, believe in yourself and try to the end. A friend called success will be eagerly waiting for you not far away. I hope from the bottom of my heart that your persistent efforts will ultimately bear fruit. I enjoyed watching the video you made so preciously.

The Darkaero project uses a brilliant and proven engine and applies the fundamental success recipe of building the aircraft around the engine and prop. The fact that you don’t like this reflects a lack of scientific thinking in my opinion. The custom designed prop will make this engine shine, by delivering maximum efficiency precisely at the rpm/airspeed/power point they computed. it only takes watching their videos for 5 minutes to understand that they are truly competent and very skilled engineers with an incredible ability to execute. I am convinced that the Darkaero poroject will succeed. It is remarkable that they hit their empty weight target, another proof of solid engineering background and perfect execution. PS If I were running their comments section I would also delete posts which contribute nothing but FUD, just like your videos which I find hollow snd a waste of time.

If that crown is that easy to damage that must be some really soft steel

Ty I'm not gonna take mine apart I just got it .powder blast is a good product. Then some type of clp then a bore snake. I'm sure will work .

.22 is dirty. Cleaning the breech face and barrel is all well and good but Armalite told us in the 60's their new M-16 was self cleaning too.

Carbon fiber is the key difference for performance based on European ultralight success. The dark arrow is likely to be extremely light. I don’t know how they can get to the 51% rule if the plane’s entire structure is carbon molded fiber.

Lift = drag. I don't know if they will meet their projections and I don't know the weight of the other planes. But their plane IS very light.

Where’s part 3?

I am gonna comment on Browning's and your advice on what and what not to do when cleaning a Browning Buckmark pistol. I will tell you exactly why Browning does not want you to strip it down for a proper and full cleaning. Which is stupid on its face. First, it is very easy to strip the pistol down for a PROPER CLEANING.........it is not rocket science. The problem is the stupid/poor design of the recoil guide rod and its very, very fragile itsy, bitsy, tiny C-clip that retains the recoil spring onto the guide rod. That thing can go a flyin in the wind if it is bumped or nudged, and if it does........GOOD LUCK FINDING THE LIL SOB !! That is the soul reason Browning does not want you to clean the gun as you should. My opinion of the Buckmark is, and I have owned two and currently still own one, it is a so so .22 pistol. Mine were/are fairly accurate but it is a cheap to manufacture and really only so so in its intrinsic beauty. A Colt Woodsman or S&W Model 41 it is not. Truly several .22 pistols that are superior in all category's are the S&W .22 Victory and any of the Ruger Mark pistols. One note.....it is possible to get and replace the lousy factory guide rod with a much better design, which I have done, but I can't recall the name of the company that makes it. And to recommend that you ' do not ' fully clean a .22 pistol, and expect it to keep on functioning is folly.........a joke, on you !!

Man, that thing was a disaster waiting to happen.

Late great top man❤

It’s interesting, why don’t you have the weight specs listed? Most of your fiberglass options are out of production in terms of kit aircraft as well. You’re comparing this to second hand kits?

Sorry, I didn’t catch which aircraft you designed and built.

🆒😎✌️!

🆒😎👍!

I think this video from DarkAero (uploaded three years ago) addresses your concerns about the "320 cubic inch engine that only makes a real 170 hp at the proper prop RPM" (3:08). Title: Why this propeller is different: Airmaster Propeller on the DarkAero 1, link: ua-cam.com/video/riOTy9m0WTY/v-deo.html. I would suggest you watch the first three minutes. It explains how the propeller has been specifically designed to run at the higher rpm of the UL power engine.

I was sitting in turn four and watch the whole thing unfold in front of me. Unbelievable Finish!!!

My first ever 500 and the best!

Used to be a fan but we don’t stand woman beaters over here nor crack heads hahaha 😂

Uh oh ! Note some Dovetail joints are TAPERED !

Dang Right ! It's a Press Fit ! No need to mar that beautiful Slide !

Hildebrand looked like a solo breakaway rider trying to fend off the bunch sprint right behind him

Dixon ran out of fuel last lap

What caliber is the jag, a .20? I use the bore snake I use for .223. thanks for the video.

12 years later and i still aint ran into that charlie mfker who was going 50 mph slower and got in the way of the rookie.

Hey buddy! Just dropped a new video, and I'd love to hear your thoughts on it. Feel free to share your feedback, positive or negative. Can't wait to hear from you!

which is which?

thanks for this video, very helpful :)

So the silver pin doesn’t need to line up with the hole?

This season is the best ever.

I think I watched this live.

This season was cursed and tragic.

Why not just... articulating ducted fans controlled centrally? This concept 100% had a chance of succeeding they just did everything the worst way.

Just use a bore snake

My sight came off on my first magazine. I tightened it back up, and it happened again. With a brand new gun. If locked tight, this trick doesn't work. I'm getting rid of it. On top of it, it's jammed two times with federal HST 124gr +. I now have it loaded with Gold Dot 124+p. 3 strikes and out.!! Sig Sauer has some really nice small 9mm now.

Looking closely, this couldn't possibly work...

Which is which?

Most guns that come from the factory are coated with a preservative substance and should be removed and replaced with a good gun oil or CLP. Some guns specifically say in their manuals that a through cleaning is needed for proper functionality. Having said that, if you are not comfortable with tearing your firearm down to get to it's internals, have someone who is do it. Then after it's done properly, you can do any cleaning in the future as done in this video that doesn't require disassembly.

All good. A .22 Bore snake does a great job and it is fast.

R.I.P Dan Wheldon

I wish i saw this two days ago. Got new pusher, won't even budge P365 rear sight.

Love that they blurred out "U.S.Navy" on the right side and replaced it with the same "U.S. Forest Service" from the other.

much obliged!!

JR ran out of fuel and that's why the car didn't turn. He wouldn't have won it.

I was there, seats on pit row inside, what an event.

That was one if the biggest bonehead moves in racing.

This was the first year I was able to watch both the Indy 500 and Coke 600 in my life, and in both, the guy I would have liked to see win have problems on the last lap coming out if turn 4. JR Hildebrand hits the wall and Dale Jr runs out of gas

I was sitting in Turn 4 and watched it happen in front of me. A little wiggle and then sparks coming off the wall. This just goes to prove it ain't over till it's over.