Iris Sounding Rocket 2 stage flight LDRS 31

The first flight of the Iris at this year's LDRS was a 2 stage with 9 Cesaroni I540 hammers in the booster staging via radio control to a 7600 ns M3000 white which inadvertently turned out to be closer to an M5000. Main deployment was also by RC although 2 altimeters were along for backup. The Triplefire RC board is available from Transolve.

[@x2malandy]

Cameras everywhere! Nice stuff.

[@algorythemQ]

Best two stage launch and recovery I have seen yet... Great job!!!

[@macheifach]

Just randomly stumbled upon this video. Dude, the footage from the ascend was beautiful. It's cool, that you let the whole thing play, without editing it into snippets.

[@antonioklaic2740]

+macheifach seriously, I love rocket launches and this one was amazing. Never realized how fast rockets really go.

[@michaelnorris6365]

Beautiful video, gentlemen. Perfect staging, almost dropped the booster on your heads, and fantastic straight second stage burn. A+

[@kevinbyrne4538]

Beautiful craftsmanship, perfect launch, beautiful photography. Great job, Mr. O'Sullivan.

[@bobosixxii9415]

You can't beat that first stage recovery. It landed in the middle of the rocket guys that launched it, practically in their laps! They didn't have to walk anywhere to get it! Best I've ever seen! Namaste.

[@adamadamkovic7992]

The best rocket video I've ever seen!

[@nicokopf9502]

Simply amazing. Perfect separation, perfect stable flight and great camera work as well. Top!

[@randomfatcs]

2:00 I smelled the smoke 😂😂😂😂

[@davidholman48]

Outstanding! Best POV footage I've seen so far.

[@theonca8204]

this rocket - for me - is a LEGEND. never seen that elegance before and past. masterpiece !!!

[@aerobee58]

Outstanding stable flight and rocket. A great throaty roar @ 1:01 as the 2nd stage kicks in. Thanks for sharing. IRIS was always my favorite.

[@wesleymccurtain166]

You guys are just great!!!! Thank you for sharing.

[@RedstonePyroMan]

Wow! Absolutely gorgeous onboard footage! That's the smoothest flying rocket i've ever seen!

[@MrBen527]

Yes, great vid! Perfect flight!

[@MonkeyDoodleCartel]

One of the best rocket videos on KZbin. Thank you for uploading this. Doug

[@franknomustard]

Interesting chute design on that first stage. Really impressive presentation. I love this hobby!

[@David-wk6md]

Very nice. One of the best I've seen.

[@florian4025]

This is the most beautifull rocket I have ever seen (plus heard) in my whole life! Dropping them first stage and igniting teh second one - - W O W!!!!! 😊

[@vinayakk2745]

Congratulations! KZbin algorithm has blessed your video!

[@buckmanaustin3211]

Excellent flight and great video from the rocket.

[@theonca8204]

I (german) have never everr seen someone doin' in any kind better than your IRIS you are master for me

[@jimmycargill521]

A thing of beauty!

[@michaelturner451]

Incredible flight!

[@rocketsnhotrods9022]

Beautiful flight

[@pratikdedhia]

Excellent, such a stable rocket, ascent and descent

[@DarkAnonimOfficial]

Perfect launch, perfect landing 👍

[@atlas1992kt]

Amazing job. looks like a lot of fun to be there

[@reknas78]

Very nice flight. Well done.

[@pauljduke33]

Impressive, very impressive !!!

[@chandsureja7948]

Great work guys

[@DesertJeff]

Awesome launch.

[@rachetomodele]

Awesome ! Perfect flight.

[@maxthrustrc]

Nicely done!

[@theonca8204]

It's so unbelievable how stable you got the IRIS to fly... so little rotation.. The best thing imo is the camera on the booster filming it's on discharge as well as the second stage of the IRIS ignite! And, oh yeah, btw the sound is just stunning! Keep on shooting and filming, pls.

[@lorenzweb]

Beautiful!

[@mylifeinamerikkka710]

That was bad ass ....ive been watching these types of videos for a short while now and want to make one myself

[@SgtSayWhat]

Great rocket guys!

[@rodrigojuniordasilvasa6910]

uuuuaaaaaauuu...this is amazing....this is good...i like this

[@josephtraverso2700]

That Second ignition is artwork

[@AndroIDoniOS]

Its JUST beautyful

[@MrGX200]

Very good! Excelente!

[@solartechjames]

Awesome man

[@florian4025]

when this IRIS is dropping' off her first stage and is igniting second I am a just WOW teh Hell WOW !!

[@photoxlo]

amazing!

[@theonca8204]

I do thank you so much

[@armbender777]

awsome video..

[@robintroutman3371]

Amazing waaauw would love to work with you one day to build one to!! learned alot thankyou sir

[@user-kf5dv6un2m]

حلو متابعك من العراق⁦🇮🇶⁩

[@skyking6989]

Damm it came right back to ya

[@thschnick]

American Public...Performing better rocket launches than North Korea since 1948.

[@randomfatcs]

2:00 I smelled the smoke 😂😂😂😂

[@nnanyereugodike-ugwu9222]

with accuracy or without accuracy just asking?

[@EeeebeeeE]

Excellent flight. Have you ever thought of having a camera face the horizon instead of down? At that altitude and on such a clear day, you should have been able to see lake Ontario...maybe even across it.

[@nnanyereugodike-ugwu9222]

Nice one guys

[@frankrizzo2191]

turns into a real missile at the second stage!!!! crazyyyyyyy!!!!!cool

[@theonca8204]

this is the most impressing rocket me ever seen. I will be your -- Rocket -- ye ah -- Satell ite o lo ve! Rocket, eah!! (Def Leppard - Rocket)

[@vahpr]

No. The altimeters fired the apogee charges (I fired the motor and main chute). The apogee charges were wired for RC deploy in case the flight went south off the tower, as happened on a subsequent flight but for a nominal flight altimeters handle apogee.

[@vahpr]

It's not currently set up for a horizontal cam although I may try this for the June O motor flight at this field. Would Lake Ontario be visible from 13,000'? Almost surely Seneca and Canadaigua which would be cool.....

[@basargorgulu7775]

very good

[@nicolatoscani254]

whats the parachute you guys where using for the first stage?

[@Mwfrizzellandsons]

Great video and launch. I noticed in most of these videos the first stage burn is always pretty short. Is there a reason for that? Weight or RC range or something else?

[@111chicane]

Very impressive ! That`s the most stable flight I`ve seen on video ! The rocket is not spinning during the flight at all ! How did you guys managed that?

[@jhyland87]

That second stage burn was a pretty awesome sight. Why was the first stage so short though?

[@skyking6989]

High thrust rockets burn for a very short time vs low thrust which burn much longer.

[@tylerswhorkshoppe8799]

High power rocket guy here, skyking is right... I'll add that sometimes it's just personal preference if you like punchy/short over lazy/long burn profiles for a given volume of motor casing to work with. Another factor of preference might be needing to achieve high enough speed for the fins to take effect before the launch rail is cleared.. you'll see the need for more punchy motors when the thrust/weight ratio will be lower due to the rocket being heavy for the given motor casing size. Propellent formula is partly to blame for propellent burn times (ratio of oxidizers) and also the inside geometry of the propellent (hollow core (fast) vs. crescent core (slow) vs. endburner(slow)). So... gotta be mindful of the slow burners because the rocket might not go fast enough for fins to work, or it might arc over too much.... many factors. Hope that helps!

[@donnieporter7890]

Now thats cool

[@karlrobinson4887]

You know you've had a vertical flight when the rocket gently falls back into it's own smoke trail at apogee!

[@AleksejAganin]

How did you separate stages , why buster jump off the main rocket so nicely ?

[@randomfatcs]

2:00 I smelled the smoke 😂😂😂😂

[@thelittlejacob1]

What systems did you use to stabilise that? And awesome vid btw!

[@BigBlueDart]

Very nice! I'm working on a similar project, myself, though a smaller scale. How did you do recovery on the booster? Parachute out the back from the middle? Ejection from motors or electronics?

[@Sessholvlaru]

You were able to visually track the sustainer to apogee to trigger ejection?

[@paulovictortorres1]

I thought the secound stage would be continue burning until it get on the moon hahah

[@mikekleinhans7710]

nice 2 stage. what was the alt reading?

[@aash9628]

Launch tho! 💗💗

[@shubhampatil.6861]

Where can i get the details about how to make it ( genuine question)

[@vahpr]

Yes, rear ejection, barometric altimeter, ejection charges were removed from the I540s.

[@kidwithaquadcopter5107]

that aint no model rocket... thats a freaking missile O.O

[@nicksmith6629]

kidwithaquadcopter - no, its missing guidance systems

[@bryanotero123]

Nick Smith Errr unguided missile, still a missile

[@maxhammerum7705]

There is no unguided missile. A rocket is unguided. And a missile is guided. This thing does not have any guidance

[@Kay_213_]

Can we just call it a missile? Calling it a rocket feels like it downplays how fucking fast it is

[@demetresaghliani9048]

@@Kay_213_ Rockets are fast as fuck. Faster than any missile. They just accelerate slowly, at first.

[@engineer6496]

Молодцы!

[@theonca8204]

like I said - the cam on the booster recording the second stage of the Iris ignite whop-whop-buuuuuuuuurrch! Got me??!?

[@jabikeman]

nice flight what was the max height ?

[@samuelnascimentodemelosant1361]

how do you install the camera? where did you put it?

[@julianducros8952]

Very nice but if it was me later stage on the secondary stages and more like 20 keep it up

[@rookoyole]

What model of camera was used?

[@saadmirza2727]

This is at URRG's field, right?

[@kirza94]

how high does this rocket go?

[@coows]

Kirz94 maybe 50,000 ft

[@geedicalasow5835]

it has exciting

[@adrianahenrique236]

👏👏👏👏👏👏👏👏

[@user-lm6bc7lj3c]

Классно 👍👍👍👍👍

[@michaelbozung1794]

Was that URRG!?

[@bryanotero123]

What formula of rocket fuel you used,

[@michaeljames3248]

what was max altitude?

[@friarrodneyburnap4336]

This there a reason that the burn duration is limited....?

[@sevincolcer6967]

What fuel did you use?

[@styxo5420]

Sugar+Kno3 and then cocked it until melts.

[@hh1n]

Max speed?

[@charlie3k]

very nice!

[@ernestosaboia]

How high? I calculated about 6400 ft

[@gooncaveenthusiast]

*gets an aerobee flashback*

[@theonca8204]

i never shot bigger than C -- this "Jerry" is a plain maniac!!

[@supershotgun5300]

He got an ICBM at home

[@unyilusrok1299]

Max Apogee 2009-2005 Max Speed 400 MPH

[@dr.spectre9697]

wow why such a short 1st stage?

[@josephastier7421]

International treaties.

[@bipolatelly9806]

DO IT AGAIN!!! (-:

[@theonca8204]

...filming --> its own

[@PowermanHDD]

это пиздато