20,000 Feet or Bust! | A High Performance Model Rocket Build

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2 жыл бұрын

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In this video I venture into my first minimum diameter high power rocket with a highly modified Madcow Tomach kit that will fly in Argonia, KS with a goal of 20,000 feet.

Пікірлер: 50

@twest344 4 ай бұрын

9:09 The tack with ca, glue on the other two fins, then crack the first, sand and re-glue trick is GANGSTA! I know this comment is 2.5 years late but crazy Jim had a great idea.

@terry5089 2 жыл бұрын

I glad to the see kit is being built. Going above 20,000 feet was the reason I bought the kit but as the saying goes, my plans changed. Yes, the fin glue guides came as part of the Madcow kit.

@RocketVlogs 2 жыл бұрын

Thanks again for the deal! Hopefully it all holds together and I can crack that 20k mark.

@terry5089 2 жыл бұрын

@@RocketVlogs You're welcome. Have a good flight.

@masonhenry8911 Жыл бұрын

Too meticulous? I can't stand when people start rounding and guessing when it comes to rockets. This is rocket science. Even a small one needs to be treated as a large one. Kind of like treating every gun as if it's loaded. Great tutorial!

@RocketVlogs Жыл бұрын

I appreciate the praise! I'm not sure I'd go as far as to say every rocket should be treated as a large one. Obviously, they should be built safely, but there are definitely plenty of "corners to cut" so to speak on smaller stuff. It's really just a balance of knowing what is and isn't required and, often, people overbuild small rockets to the moon!

@myname_not_rick 2 жыл бұрын

Late comment here, but what is your *fillet* epoxy of choice? I know from watching that you're a fan of West, (as am I, basically my entire L1 build was silica-thickened WS) but I know that a lot of people prefer rocketpoxy or aeropoxy for fillets. Your thoughts?

@shere_kan8329 2 жыл бұрын

neat project ! I'm yet to build my first FG kit but I heard that a mask is more than important when working with FG (especially sanding) cuz of the glass dust which go and make a big mess of your lungs. Keep it safe ;))

@RocketVlogs 2 жыл бұрын

Yeah, typically I do wear a mask but you caught me slacking here

@shere_kan8329 2 жыл бұрын

@@RocketVlogs ;))

@peraltarockets 2 жыл бұрын

Cynthia and I were going full-on Auntie when we saw him not wearing a mask. 😅

@rocketman8911 2 жыл бұрын

I've flown a 75mm MD to 25K on an AeroTech M775W Demo motor now the M685W with the fins tacked on with CA glue then fillets of US Composites Epoxy with Cab-O-Sil and chopped carbon with two layers of tip to tip carbon.

@islandtime100 2 жыл бұрын

Thank you for the video; feeding the algorithm.

@RocketVlogs 2 жыл бұрын

You know it!

@roboman2444 2 жыл бұрын

Is there any benefit to making the rocket longer than it needs to be? Assuming no issue with CG, wouldn't lower mass be better for higher altitude flights?

@RocketVlogs 2 жыл бұрын

Length hinders performance! I'm cutting the tube down a bit more, too.

@kevinwilson2426 Жыл бұрын

What do you look for in a quality kit? I'm looking at manufacturing some and wanting to get an idea of what's needed.

@RocketVlogs Жыл бұрын

Good design and parts that fit are my criteria. Completion including recovery gear is always a plus.

@kevinwilson2426 Жыл бұрын

@@RocketVlogs I couldn't agree more. We wanting to develop parts with a really good fit. Haven't had the best fit from some kits in the past so definitely things we will take into consideration when we start to manufacture our own.

@jackhydrazine1376 2 жыл бұрын

You should sim a K250W-P motor to see what kind of altitude you get. It has a burn time of about 9 seconds.

@RocketVlogs 2 жыл бұрын

K250 was on the radar, but I just got off the phone with Wildman and I think I'm going to go with the K300, considering buying the Pro54 6XL case and the load is only about $30 more than the K250.

@BrianKelsay 2 жыл бұрын

You used a racketball to smooth the fillets?!? Is that because of fin size, making bigger fillets or what?

@RocketVlogs 2 жыл бұрын

It's a 3D printed shift knob that happened to be the perfect size for the massive fillets I wanted for the sake of span reduction and reduced fin flutter with fast flights

@karlrobinson4887 2 жыл бұрын

I mask off everything and just pour in some 30 minute. It levels right out without touching it and requires little manipulation. Am I doing it wrong?

@RocketVlogs 2 жыл бұрын

Nope, that definitely works. However, for higher performance applications you may want to switch too a more robust epoxy

@ericgen6089 2 жыл бұрын

When will you be at Argonia?

@RocketVlogs 2 жыл бұрын

September 3rd-6th

@Samvip00 2 жыл бұрын

You should consider building a mad cow frenzy massive

@RocketVlogs 2 жыл бұрын

We're kinda out of room for massive kits as it is and I have an 8" V2 on the way.

@thomasnoteboom1531 2 жыл бұрын

how do you cut a tube if you want to add a second stage?????

@TheExplosiveGuy Жыл бұрын

A chop saw with a new sharp blade will cut fiberglass tubes very cleanly, just cut slowly with minimum pressure. Do it outside though, the dust is a motherF'er, and blow your saw down afterwards.

@kraigson 2 жыл бұрын

Suggestion for your fin guides... Cut small notches at the tube/fin joint so you don't accidently glue it to the rocket (Don't ask how I know this).

@RocketVlogs 2 жыл бұрын

I was a little concerned about this exact scenario, but in this case it cleared them pretty well thanks to the tape spacing

@joeb9135 8 ай бұрын

fin can in minimum diameter rockets rule m

@wayneschenk5512 2 жыл бұрын

Flew a space cowboy on a k375 dual burn to just under 20000 feet would be great to get above that.

@RocketVlogs 2 жыл бұрын

Fingers crossed!

@aviator172rr 2 жыл бұрын

Can you share the epoxy you are using for joints? Thanks

@RocketVlogs 2 жыл бұрын

Fin are tacked on with Bob Smith 5 minute epoxy and the fillets are West Systems with Colloidal Silica

@aviator172rr 2 жыл бұрын

@@RocketVlogs Thanks !

@TomLentz 2 жыл бұрын

Man, you are not messing around with those chonky fillets!

@RocketVlogs 2 жыл бұрын

@@TomLentz Gotta keep those fins on! Haha

@earleclemans4836 Жыл бұрын

What is the red/yellow rocket?

@RocketVlogs Жыл бұрын

The big one?

@earleclemans4836 Жыл бұрын

@@RocketVlogs to your right

@RocketVlogs Жыл бұрын

@@earleclemans4836 Wildman Ultimate Darkstar

@kraigson 2 жыл бұрын

K'Tesh here... Who are you on TRF?

@RocketVlogs 2 жыл бұрын

Upscaler

@Xilvanas_Backrunner 8 ай бұрын

If you could create an anti-air missile to intercept another rocket, that would be really cool.

@squidgobbler Жыл бұрын

Too much talk

@RocketVlogs Жыл бұрын

Did you try not watching?