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REV 2.4 - Sat Jan 1 21:52:54 2011

LOC
Minie-Magg
P.O. Box 470396
Broadview Heights OH 44147
(330) 745-9755
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SPECS: 37" x 5.54" - 40 oz
ROCKSIM FILE: Right Click to Download
SpaceCAD FILE: MISSING - please submit here
REC'D MOTORS: 38mm: H115-10, H145-10, H142-10; 29mm: G125-5

Rating
(Contributed - by Bryan M. Chuck)

Rocket PicBrief:
LOC's Minie-Magg is a single-staged HP rocket popular with many fliers. Its stubby profile combined with a basic build make it a fun flier for larger motors, as well as smaller H motors for a lesser field.

Construction:
The parts were contained in a durable plastic bag. The inventory of parts are as follows:

  • 1 nosecone, plastic
  • 1 kraft paper airframe 5.54" diameter (fin slots pre-cut)
  • 1 kraft paper 38mm motor tube
  • 2 birch ply centering rings
  • 3 birch ply fins
  • 1 elastic shock cord
  • 1 braided nylon shock cord mount
  • 1 nylon parachute (mine is bright orange)
  • 1 launch lug (1/2" diameter)

I felt the components to be a fine quality, and found no warping of the fins.

Outside of the Minie Magg's size, it is a basic build. I used 15 minute epoxy for the assembly and 30 minute on fillets. The instructions are simple to follow and are included on the back-side of the info/picture card. I would speculate that a person should have no problems assembling this rocket from the instructions LOC supplies.

Nose ConeAll the parts fit together well and required minimal, if any sanding. I decided to deviate slightly from the instructions, though, in order to add a few things to improve the longevity of my Minie-Magg. The supplied shock cord mount is epoxied on the inside side of the airframe, and uses elastic for shock cord material. I did not feel confident using this arrangement, so I put an eyebolt in the forward centering ring to anchor the shock cord. I also opted to use 20' of tubular nylon in lieu of the elastic. Attaching the cord to the eyebolt was done via quick link. I also felt the plastic eyelet on the nosecone would prove weak on this larger rocket. To remedy this, I drilled a 1/2 hole in the base of the nosecone, passed my shockcord through it, and passed it back through the hole pre-existing at the bottom center of the nosecone. Thus far, it has held up well.

Another minor "CON" to this rocket is the fins do not go all the way to the motor tube. To make amends, I decided to keep the aft centering ring off until after I put the fins on. On the inside of the airframe where the fin tabs came barely through, I put 2 inch wide fiberglass bandaids the length of the fin root.

Lastly, I added t-nut & brass strip Kaplow-style motor retention before adding the aft centering ring.

As for building, here are my thoughts: PROS 1. Quality of airframe, wood components, and nosecone. 2. Exceptional fitting of parts. 3. Simplicity of build/instructions, even if built "stock."

CONS 1. Shock cord attachment and shock cord material. 2. Fins are not to the motor tube. 3. Lack of motor retention, which is fairly common in mid-power and HP rockets.

Finishing:
To finish off my Minie-Magg, I filled the tube spirals with 3M Spot Putty. On the fins, I used a couple coats of SIG sanding sealer from the local R/C plane store. After sanding things smooth, I employed two light coats of white Krylon primer, sanding between coats. For my color coat, I chose Glossy Krylon Grape. I chose this color in honor of my friends' daughter, whose name is Violet and likes rockets.

Construction Rating: 4 out of 5

Rocket PicFlight:
Flight prep for this rocket is easy. It's wide enough to fit all recovery items with no hassle. Instead of the large amount of wadding the Minie Magg would require, a 18"x18" piece of Top Flight Nomex® was used. I also added one of their Nomex® sleeves for good measure. The LOC catalog notes that one could fly this rocket with a G80 SU motor.

The maiden flight of my Minie-Magg was at Black Rock XII in Nevada. I chose an I161 medium for the ice breaker. It was a good choice and recovery happened without a hitch. At this point, I've gone as large as an I211. All flights have been arrow straight, and exceptional "rock & roll" motors for this rocket seem to be the I300, I357, and of course, the I211. For good measure, my breakdown of motors used in the Minie-Magg are thus:

  • H123
  • H242
  • I161
  • I300
  • I357
  • I211

I've had only one incident when the fin popped loose. In light of that, I would rate the Minie-Magg's flying and prep at a top notch 5.

Recovery:
No cons regarding flight recovery after swapping out the shock cord and using a different anchoring system. Pros: Stock 'chute seems adequate.

Flight Rating: 5 out of 5

Summary:
I'm quite pleased with this rocket. In my opinion, it only needs a couple of things added to improve it: Shock cord and shock cord attachment. Also fin root strengthening is probably a good idea. Even if built stock, the parts are outstanding in their fit and quality, and the build is straightforward. Overall, it's a fun flier. I'm constantly amazed at how many Minie-Magg's I see at launches. I believe it's a fine L1 rocket on the H123, also.

Overall Rating: 4 out of 5

[Submit your Opinion]

GUEST's OPINION:
02/07 - "The Minie Mag kit I purchased in 2007 has a different fin mounting system than the models mentioned here. The fin tabs have a slot cut through them and once placed inside the body tube there is plank piece that slides into the slot on the fin. The plank touches the body on each side of the fin. It was a very snug and secure fit. Whish all my kits came with this method." (M.L.)

GUEST's OPINION:
02/02 - "A nice stout kit for the money with a couple things to improve upon. I ended up peeling off the entire "glassine" coating, which seems to be some type of plastic film which sands poorly and refuses to really bond with any type of adhesive. I also made new fins which go through to a 54mm motor mount, with internal and external fillets as well as generous fillets of high temp epoxy (like PC-7) on the MM tube. I learned my lesson on a Graduator by trying to strengthen the stock fin system, which added weight, and is it still developing cracks in the fillets as I fly it more. This time, the rocket feels bulletproof, with fins you can bend significantly with no danger of cracking or failure. This rocket will be extended with another length of body tube and hopefully will be my L2 cert unit this spring. In short, peel the plastic, use sandable primer or 'glass to seal the tube, make new fins that reach the MM tube, and replace the elastic with Nylon or Kevlar, and it's a 1st class rocket that will live through many flights with no damage. Hope this helps someone!" (S.M.)

GUEST's OPINION:
01/02 - "I thought that this kit was of great quality and was very easy to build. One con is that I did not care for the way that LOC said to attach the shock cord to the airframe. To solve this problem I drilled a hole in the forward centering ring and put a screw eye through it. I then added a 15' section of nylon strapping to act as the shock cord. A second MAJOR con was the fact that the fins did not go all the way to the motor mount tube (I think that all manufactures of how power rockets should take a good look at how much people hate this and fix the fins so they will go all the way to the MMT tube). I decided to do the same thing as the first reviewer and add a small strip of fiberglass cloth to the inside of the tube to help secure the fins. Next, I covered the tube and fins with wood glue to fill in the grooves and cover the fins (check out my tip about filling in spirals with wood glue on the "TIPS" page). Finally, the last thing that I did was cut the launch lug in half and angle the forward end of each. I do not have any flight logged with this rocket yet but I hope to use a PRO38 engine at my next local launch. In all this is a fairly good kit except for the fact that the fins do not go all the way to the motor mount tube." (J.J.)

GUEST's OPINION:
09/01 - "I have built and launched my Minie Magg on H180,H210R,H242,and the I218R. All with med. delays all perfect flights. Changes made to kit are as follows: shock cord 9/16 tube nylon, I-bolts in top center ring + in nose cone{20 ft. shock cord),pulled out rear centering ring and ran 30 min. epoxy down fin root to body tube on inside, let motor tube stick out 1/2" and installed slimline motor retainer. the I218 Redline is a killer looking rock and roll motor for this rocket, use a med. delay." (J.T.)

GUEST's OPINION:
08/01 - "I like to fly my Minie Magg on Quick burning motors. So far I have flown it on an H220-10T, and a H242-10T. I choose the medium delay because I have an magnetic apogee sensor in the nose cone to deploy the parachute. Next time I fly it, I think I'll use an H210-10 Redline motor. I also plan to try it with an I357 in the near future." (D.G.)

[Enter Rocket Specific Tip]

SPECIFIC ROCKET TIP:
03/02 - "Without any mods to the fins themselves, they can be toughend up a bit. Cut a notch in the forward centering ring so that it catches the fin tab inside the body. With the motor mount installed, but not bonded, bond the forward CR to the BT and fin tabs only. Use the aft CR to hold the motor mount true. Next, fillet the aft side of the forward CR. Then, fillet each fin separately. I used some hobby molding, (looks just like door molding) to beef up the fillets. 1/4 round dowel would work just as well. After " (S.B. from RMR )

SPECIFIC ROCKET TIP:
03/02 - "Cut out new fins that mount to the motor tube and add some glass to the fillets Add about 6 oz of nose weight and you can use an I211, add a pound and you can cert 2 with a J350. " (J.B. from RMR )

[Enter Flight Log]
Date Name Motor Ejection/
Altitude
Wind Notes
01-05-2003 Iain Banks Ces RLD I205-7 Didn't See Calm - Unbelievable!.... Screamed off the pad to 2000ft to 2500ft and then drifted for about a mile on a large chute. Recovered with slight damage to launch lug.
05-04-2003 Iain Banks Ces RLD H110-6 Just Past (1-2sec) 10+ mph winds - Nice fast boost to 1500ft. Used a 28 chute due to strong breeze, recovered undamaged a few hundred yards down wind of the pad.
08-03-2003 Iain Banks Ces RLD H143-6 None - CATO Calm RIP - Motor cato'd just after leaving launch rail, possibly mixed grains, should have been smokey sam, but burnt more like a classic reload. ie. hardly any smoke at all. MMT destroyed. Status: Not Repairable
11-08-2008 Carl Campbell AT RMS H148-M Apogee - NC Down 0-5 mph winds Flight PictureEvent: Bunnell Blast
Delta-IV - Surprisingly quick jump off of the pad, followed by a long coast. Didn't think it could do that!
08-14-2010 Jeffery Estes Ces RLD J285-12 Apogee - Perfect
(1874 ft)
0-5 mph winds Flight PictureEvent: Manchester Sod Field
SLUG - I wanted a Big Dumb Rocket for my L2 that I could later modify to Dual Deployment and this one fit the bill. Very stable & impressive flight. I recommend the LOC Minie-Magg for any L1 / L2 certification. Cert Flight: L2
03-16-2001 William Frazier Kos TRM J230-Altim Apogee - Perfect 5-10 mph winds Pheonix - L2 flight. Nice slow boost, altimeter deployed right at apogee. Cert Flight: L2
07-28-2001 William Frazier Kosdon J340 Very Late 0-5 mph winds Pheonix - Kosdon J340L2 Attempt, Very late ejection, shock cord mount ripped out on chute deployment. No damage to rocket due to thru the wall fins to the motor mount.
07-29-2001 William Frazier AT RMS J420-M Very Early 0-5 mph winds Pheonix - Ejection charge fired immediatly after motor burn out, no damage to motor hardware. Parachute stripped, body tubes collapsed on landing.
07-29-2001 William Frazier Kosdon J340 Very Late 0-5 mph winds Pheonix - 2nd L2 Attempt, Very Late ejection, Body tube zippered.
11-20-2010 Pat Harden Ces RLD G79-6 Apogee - NC Up 5-10 mph winds - Nice flight, about 500 foot.
11-20-2010 Pat Harden Ces RLD H143-6 Apogee - Perfect 5-10 mph winds Flight Picture - 3rd flight. About 1000-1200 foot Cert Flight: L1
11-20-2010 Pat Harden CTI G78-15A BS Late (2-3sec) 5-10 mph winds - Slow off the rail, weather cocked. Late deployment.
01-01-2011 Pat Harden Ces RLD H125-6 Apogee - Perfect 5-10 mph winds - Very nice. Fast off the rail. About 12-1400 feet.
01-01-2011 Pat Harden Ces RLD H123-6 Apogee - Perfect 5-10 mph winds - Skidmark!! Nice and loud. Straight up. About 1000 feet.
01-01-2011 Pat Harden Ces RLD G79-5 Apogee - NC Down 5-10 mph winds - Nice flight. about 500 foot.
12-12-2004 Scott Kluth AT RMS H97-S Just Past (1-2sec) 10+ mph winds - Maiden flight in gusty winds. Nice slow lift with thick black smoke. Beautiful flight, LEVEL 1 Successful. Cert Flight: L1
05-12-2007 Robert Koenn Loki RLD H144-12 Just Past (1-2sec) 5-10 mph winds Event: Bunnell, FL
- My first flight on the rocket. Nice straight boost and good deployment of chute. However on landing one fin sank in the soft dirt and when the rocket rolled over it broke part way through near the root.
04-2806-20 James Kral AT RMS H128-6 Just Past (1-2sec) 10+ mph winds jameskraliii - very windy day rocket weathercocked and landed about 600 feet upwind from pad used 28inch chute and long nylon shockcord no damage perfect flight
03-06-2010 Jeff Lane Ces RLD H123-7 Just Past (1-2sec) Calm Flight Picture - Gorgeous flight, vectored off at an angle but ejected at around 400 feet, no damage. This Skidmark is a great motor!
03-06-2010 Jeff Lane Ces RLD H123-7 Just Past (1-2sec) Calm Flight Picture - Gorgeous flight, vectored off at an angle but ejected at around 400 feet, no damage. This Skidmark is a great motor!
04-29-2006 Philip Levanda AT RMS I154-M Just Past (1-2sec) 10+ mph winds Event: METRA 4/29/06
- Nice flight smallest motor I can use on this rocket. Testing an onboard video camera. Had trouble with the camera.
04-29-2006 Philip Levanda AT RMS I154-M Just Past (1-2sec) 10+ mph winds Event: METRA 4/29/06
- tried again with the same motor. Need to fix an battery issue with the camera
06-04-2006 Philip Levanda AT RMS I211-M Apogee - Perfect 0-5 mph winds - Nice flight
07-10-2006 Philip Levanda AT RMS H210-10 Apogee - Perfect 5-10 mph winds Event: METRA oct
- Was a nice flight. Not exactely sure i got the date correct. It was October though.
04-11-2010 Philip Levanda AT RMS I211-M Apogee - NC Down 10+ mph winds - L1 Re-Cert After a 4 year layoff. Perfect flight. The onboard video came out great. Cert Flight: L1
04-11-2010 Philip Levanda AT RMS I245-M Apogee - Perfect 10+ mph winds - Perfect flight. The onboard video came out great. Not a bad motor for this rocet.
09-07-2001 Randy Luhman AT RMS H242-6 Apogee - NC Up 10+ mph winds Duracell - Perfect boost straight up, no wind cocking. At ejection NC separated from shock cord. Body came down on 'chute. No damage to any parts. Will use more secure NC attachment next flight.
05-19-2002 Scott Marshall Ellis RLD J270-P Apogee - Perfect
(3200 ft)
5-10 mph winds Minie-Magnetic - Cert 2 flight (7.5lbs loaded) Setup with an Ellis Mtn J270 (needed nose weight), Magnetic Apogee Detector - also in nose (modified for high current output), & a 5 ft chute at Geneseo NY - Perfect flight approx 3200 ft Cert Flight: L2
02-03-2001 MikeyR AT RMS I300-L Very Late Calm RIP - OOPS! Should have been a S or M delay. Rocket arched over, no ejection and crashed. Made a big crater out in the field, took two of us to pull the nose out. Totally destroyed. Status: Lawn Dart
02-13-1999 Todd Mullen AT RMS H242-10 Just Past (1-2sec) 10+ mph winds - My 1st rocket in 20 years, Level 1 flight. A good flight in high winds. Cert Flight: L1
07-03-1999 Todd Mullen AT RMS I357-10 Apogee - Perfect Calm - Great flight - landed on someone's tarp
11-13-1999 Todd Mullen AT RMS H97-6 Apogee - Perfect Calm - A neat motor for this rocket. Make sure there is no wind as the rocket takes off very slow.
04-16-2005 Bill Pate AT RMS H242-10 Apogee - NC Down
(1700 ft)
10+ mph winds Event: Mile Hi Mayhem
- Perfect flight, but need to add some nose cone mass for the bigger motors to keep it stable.
10-01-2005 Bill Pate AT RMS I154-9 Apogee - Perfect
(~2300 ft)
0-5 mph winds Event: Oktoberfest
- Had the perfect amount of nose weight (15 oz.)and shaved 0.030 off the delay charge. Turned out a perfect first I motor flight. Next step is L2 certification with the Bruiser EXP-3.
04-01-2006 Bill Pate AT RMS J350-M Apogee - Perfect
(~3700 ft)
0-5 mph winds Event: NCR Club Launch
- What a flight! This thing screams on a J350, and it actually survived the Level 2 cert. Old reliable comes through again.
09-06-2008 Brian Pope AT RMS H250-8 Just Past (1-2sec) 5-10 mph winds Juiced Up - Very good flight on this Green motor. Drilled delay down some for about an 8 sec delay. 1400' Est.
07-05-2002 Chuck Rudy Ces RLD J330-8 None - CATO 5-10 mph winds Cast Iron - The MM was beefed up for L2 cert on J motor.....the CATO puked the grains out the casing and sent the rocket 20 feet in the air, nose cone first.......little damage
07-06-2002 Chuck Rudy AT RMS J350-6 Apogee - Perfect 10+ mph winds Cast Iron - Beautiful L2 cert flight.....laundry was too large for the wind and the thing ended up a half mile away......smaller bloomers next time Cert Flight: L2
08-04-2002 Chuck Rudy AT RMS H123-S Very Early Calm Cast Iron - Moved off the pad well, no nose weight at all......swapped delays with another flyer, but it was so short it ejected before motor burnout....no zipper, under chute (only one small out of two), hard landing and no damage.
02-01-2003 Michael Simpson AT RMS H148-10 Apogee - NC Down 10+ mph winds Ivy -
03-20-2010 Malcolm Smith AMW RMS G185-5 Apogee - NC Up 5-10 mph winds - Very fast boost, great sound good coast with ejection happening nose up moving slowly.
04-17-2010 Malcolm Smith Ces RLD H400-10 Apogee - NC Up Gusty - Great, fast boost with no wind impact despite a gusty wind pattern. Ejection was nose up with very little upward momentum. Long recovery walk due to wind. No damage.
05-30-2005 Chris Stone AT RMS H123-M Apogee - Perfect 0-5 mph winds Event: FITS-05'
- Perfect flight, long drift on stock chute, recovered probably 1/2 mile away from the pads. Successful Certification flight. Cert Flight: L1
   

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