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Estes - MK-109 Stingray (1232, 2131) [1997-2002,2002-2003]

Manufacturer:Estes

Contributed by Kim Durose

(Contributed - by Dave Sutter) 
[Rocket Pic]
A pretty nice rocket, if a bit on the plain side when done. I was most impressed with the construction. It's all plastic cement. I didn't even know such a thing as a plastic motor mount until I started reading the instructions for this rocket.

I haven't fired this one off a lot yet, but every flight has been just fine. I have no real complaints, but two small nit-picks. First, while it won't set any altitude records, this rocket will go high enough that you'll wish it was some color besides white; very easy to lose sight of against a white cloud background. I really like the fact that there was no painting required, and it's not a bad looking rocket when it's on the ground, but if I had to do it over again, I might paint at least the fins a dark color. Second, this rocket is pretty light, and can drift a *long* way on a 12" chute. I'll probably try a 12" chute with the spill hole cut out. Or, since it has plastic fins, maybe I'll just go with a streamer.

To those on rec.models.rockets: No, I haven't had any stability problems, even with C engines. It's gone straight and true on every flight. 


Description: Basic rocket. Pretty cool military-missile styling. Very unusual all-plastic-cement construction, with plastic engine mount.
Purpose: I was waiting desperately for a big shipment of 6 rockets, and I just couldn't wait. A binge buy, but a good one.
Motors: A8-3 (first flight), B4-4, B6-4, B6-6, C6-5, C6-7
Max Altitude: A8-3: 190ft / 58m
B4-4: 475ft / 145m
B6-4, B6-6: 510ft / 155m
C6-5, C6-7: 1050ft / 320m
Length: 16.0" / 40.6mm
Diameter: 1.0" / 25.4mm (BT-??)
Weight: 1.7oz / 47g
Recovery: 12" parachute
Nose Cone: Ogive, plastic
Fins: 3, plastic, unique shape, mounted TTM (Through-To-Motor mount)
Notes: Despite others' claims to the contrary, I've not experienced any kind of stability problem with this rocket... and yes, I have flown it on C engines.
Requires 3 sheets of recovery wadding.
Skill Level: 1, EX2
Part Number: 2131
Price: 9.99 (But I paid 6.99 for it at K-mart)

    Flight Log

    DateRocket NameMotor(s)AltitudeNotes
    1999-05-16Bob Kaplow's Estes MK109-StringrayA8-3- stable w 6g lead/epoxy
    2000-05-12Casey Smith's Estes MK109-StringrayC6-7- Went way up there, almost out of sight. Nice short walk with a streamer recovery.
    2001-04-01Casey Smith's Estes MK109-StringrayC6-7- Boy, this kit always goes out of sight. What a great little performer. It has been around for...
    2002-03-23Jason Vennard's Estes MK109-StringrayB6-4- Good flight and recovery, no problems.
    2002-05-27Randy Kohr's Estes MK109-StringrayD21-7- This is a great combo!! Into the clouds, heard ejection, thought this ones not comming back but my...
    2002-07-06Bill Eichelberger's Estes MK109-StringrayB6-6- Great flight with very little drift on recovery.
    2002-07-14Bill Eichelberger's Estes MK109-StringrayB6-4- Slightly wobbly flight. Recovery was on gravel parking lot. No damage.
    2002-08-08Bill Eichelberger's Estes MK109-StringrayA8-3- Hard landing but no damage.
    2002-11-16Dan Westley's Estes MK109-StringrayA8-3- Faulty Estes ignitor, lucky I had a spare Quest one handy. Had to race a keen labrador to the...
    2002-11-24Dan Westley's Estes MK109-StringrayB6-4- Good flight until ejection. Shockcord burned through. Body tumbled safely to earth, but the...
    2003-06-01Bill Eichelberger's Estes MK109-StringrayB6-4- Great flight. Landed almost in road.
    2003-07-06 Bill Eichelberger's Estes MK109-StringrayA6-4- Kid's launch. Impressive flight. I wish the Quest motors were more easily found in stores.
    2003-09-20Bill Eichelberger's Estes MK109-StringrayB4-4- Whipped badly off the rod and got treed for it's troubles. I told the kids who were watching that...
    2004-03-13James Reyome's Estes MK109-StringrayB6-4- First flight for PJ's first-ever I built it myself! rocket. Kicked the igniter on the first...
    2004-10-01Chris Muir's Estes MK109-StringrayB6-4- Great flight. Drifted with wind into tree. Did manage to retreive parachute:)
    2004-10-01Chris Muir's Estes MK109-StringrayA8-3- Perfect maiden flight.
    2005-05-21Johnny Lugnuts's Estes MK109-StringrayC6-5800 feet Launched steeply upwind, nice and straight flight, nosed over slightly before ejection. Shock cord...
    2005-09-17David Logan's Estes MK109-StringrayB6-4- Big difference from the Estes B6. Quest motor has a little more kick to it. Recovered about 30...
    2011-04-03Luke Wolski's X-zero-X MissileB6-4- Awesome firstt flight!

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