Estes Cosmic Cobra

Estes - Cosmic Cobra {Kit} (1262) [2002-2008]

Contributed by Bill Eichelberger

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Diameter: 1.33 inches
Length: 19.50 inches
Manufacturer: Estes
Skill Level: 1
Style: Helicopter

Rocket Pic Brief:
T' Cosmic Cobra is a combination parachute/helicopter recovery rocket. Arrr! T' nose cone ejects and returns via a rubber band actuated, 3 blade rotor system while t' rest o' t' rocket returns by t' more conventional parachute method. Ahoy! While t' Cosmic Cobra model itself is new, t' idea isn’t, me hearties, havin' been done previously by t' Estes Heliocopter and HeliCat.

 

Construction:
In true E2X fashion, t' Cosmic Cobra kit isn’t overly laden with parts. Begad! Arrr! T' fin unit is plastic with forward swept fins. T' motor mount is actually molded into t' fin unit and has a plastic end cap t' keep t' motor in place durin' flight. Aye aye! Blimey! T' nose cone and rotor fins are glued together and must have t' enclosed rubber bands attached t' be “loaded.” A 12 inch parachute completes t' package.

Also in true E2X fashion, me hearties, matey, t' Cosmic Cobra can be built in a matter o' minutes. Begad! T' rotor attachment is glued t' t' nose cone base and t' rotors themselves just snap on. Begad! T' trickiest part o' t' build is gettin' t' rubber bands aligned so that they allow t' rotors t' deploy and even this isn’t that tough. Like t' other rockets in t' E2X flight line, it’s possible t' buy this kit in t' mornin' and still fly it before lunch. Avast, me proud beauty! What makes this one out o' t' ordinary be t' recovery. Kids especially will love it, but I don’t hear many grown ups complainin' either.

Finishing:
Pre-colored. Aye aye! Aye aye! Black, yellow and purple have never been among me favored color schemes, but what do you want for next t' nothing. One sticker-type decal completes t' “look.” It’s nay great, but it won’t brin' up lunch.

Construction Rating: 5 out o' 5

Flight:
I’ve only flown this rocket once, but it isn’t hard t' get a feel for t' performance based on that flight. Aye aye! T' rotor performed as advertised and brought t' nose cone down for a textbook recovery. Arrr! Ya scallywag! T' body section wasn’t quite so lucky. T' body tube itself is fairly large, but t' rotors must be folded straight down inside so that t' nose cone will fit. Begad! Avast, me bucko, me proud beauty! This means that t' parachute will have t' be down deep and apparently mine wasn’t. T' ejection charge did little more than move t' whole mess, wadding, shock cord and parachute, up in t' body tube. Well, blow me down! It didn’t deploy and t' whole shootin’ match came down in a flat spin, me bucko, matey, me bucko, landin' hard in a gravel parkin' lot. Ahoy! T' good news; no damage. Avast, me proud beauty! Ahoy! This rocket can take a hit.

Recovery:
This is where I’d take a half point away. Everythin' packs very tightly in t' body tube and it may take several flights before t' secrets for t' dual deployment reveal themselves. Blimey! Blimey! Begad! Blimey! It could also be as simple as operator error. Wouldn’t be t' first time.

Flight Rating: 4 out o' 5

Summary:

Pros: Entertainment value. Avast! Blimey! It appeals t' kids and adults alike. Avast, arrr, me proud beauty! Rotor performance. Aye aye! Ease o' assembly. Avast! Avast! Durability.

Cons: Styling. It’s kind o' ugly. Ya scallywag! (Then again, I might have lousy taste.) Packin' t' body tube t' allow both recovery systems t' function may be a trial and error process. Aye aye! Begad! Blimey! (Then again, I might be stupid.)

Overall Rating: 4 out o' 5

 

Other Reviews
  • Estes Cosmic Cobra By Wendy Hartmann (September 13, 2013)

    Launched five times successfully after packing modification. Components Parachute would not deploy if I packed it how the directions indicated.  Instead of folding the parachute down to the bottom I folded it in half two more times to makea narrow triangle shape.  Then I tucked this long version in the blades attached to the nose cone.  The end of the parachute ...

  • Estes Cosmic Cobra By Jared Elliott

    Brief: This is an E2X kit single stage with parachute for the body and helicopter recovery for the nosecone. Construction: The kit consists of a pre-molded fin/MMT unit, 12" plastic parachute, single BT-60 tube, and plastic nose cone. This is an easy kit to assemble. Instructions are straightforward and easy to follow. Assembly can take between 30 minutes or so, depending on ...

  • Estes Cosmic Cobra By David Sindel

    Brief: The Cosmic Cobra is a low power rocket that recovers in 2 pieces: the nose cone returns on helicopter-like blades and the body tube recovers by parachute. Construction: The kit contains: 1 12" yellow body tube 2 piece fin can nose cone with 3 helicopter blades 12" chute This kit was easy to build and took less than one hour to complete. ...

  • Estes Cosmic Cobra By Greg Deeter

    Editor's Note: This review does not consider the helicopter portion of the rocket. This is one of the new ones from Estes. This kit seemed to to yelling "STREAMER" to me. The plastic forward swept fins are strong, and just seem perfect for streamer recovery. So, I took the helicopter parts and put them away for a later day. This reduced the weight, so now my Cosmic Cobra is only 2.4 oz ...

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Flights

Comments:

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G.A.D. (September 3, 2002)
We have had a hard time figuring out how to get a good clean deployment from this rocket. On the first flight the nosecone separated but the ?copter blades barely had time to fold out. The parachute was partially melted and failed to deploy fully. The second flight was a good one. On the third flight the combination of chute and ?copter blades was too much to eject and it lawn-darted. [Note to EMRR, I'll send a Pic] I'm considering how rebuild this for more consistent ejection. I may lengthen the body tube and use a piston of some sort.
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J.R. (December 11, 2003)
I think this is an excellent rocket. It's fun to fly and watch this rocket's recovery. Especially on a C6-5. The parachute melting annoyed me a lot though.
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unknown (December 18, 2003)
This is a great rocket. But it's basically a E2X version of the Hyper X.
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F.H. (April 6, 2004)
The picture above looks EXACTLY like mine after just one flight. Everything just packs way too tight. If Estes replaces this kit I will build it with a streamer to reduce the amount of stuff to pack into the body tube.
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B.A. (March 8, 2006)
Once you get the knack of how to lead the blades and a chute, this is a great rocket. All of the kids love it, and I've had the nosecone take over 2 minutes to come down at times.
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M.S. (October 23, 2006)
After a couple of failures using the rotors, we have scrapped the helicopter retrieval completely and added a streamer to all 3 Cosmic Cobras that my kids own. Much easier to load and higher percentage of recovery. We have flown one of the Cobras at least 15 times. They all look like they will last a long time. With less weight, a C motor makes a really nice flight!
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J.G. (June 15, 2008)
This rocket is what I refer to as a "Titanic". Very first flight was also its last flight. I read the flight logs and reviews prior to flying this, and for some reason, thought mine was going to work. It didn't. There is just too much stuff to cram into a BT-56 tube here. Others that witnessed the ballistic arc that our rocket did (when ejection charge failed to even get the nosecone out) said "that must have been a Cosmic Cobra". Tells you something. The suggestions we got were that this rocket needs to be "stretched". We concur. A longer body tube will allow for chute to be packed underneath the folded helicopter blades. Stay tuned in the mods section.
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G.P. (June 25, 2008)
I'm not sure why some people are having trouble with this rocket - I've had good recovery every time. The trick is to fold and roll the parachute in a long wedge so that it fits inside the rotors. This was my mom's favorite of all my rockets - she loved watching the rotor/nose cone deploy and autogyro down.
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C.G. (July 2, 2008)
As G.P. said, you need to fold the parachute rather flat and place it between the rotors. My daughter has one and has never had a bad deployment. However, the nose cone doesn't spin all that well in the default build; it starts to spin, then flips over, then starts to spin again, and so on. I resolved this by putting a few grams (probably around 15) of weight in the tip of the nosecone, enticing it to remain pointed downward for a more satisfying spin.
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John R, Brandon III (March 8, 2011)

  I have yet to launch my Cosmic Cobra as I refitted it...I rigged it with a piece of monofilament line running to the nose cone point and a snap swivel at the far end, attached to the shock cord. Ideally it should allow the rotating nosecone to serve as recovery system for the entire rocket!

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