All Rocketry Blogs

Model Rocket Building: Do It Yourself Baffle Part 1 (2010-08-14)

Some available baffles can cost almost $5.00! You can make them yourself using scraps for a fraction of that price. First up - a coupler made from the some scrap tubing, cut from the same tubing as ... [Read More]

Model Rocket Building: Do It Yourself Baffle Part 2 (2010-08-15)

Here I'm gluing a strip of 110 lb. cardstock to both sides of the slit tube. Cut it oversize and trim up the edges when dried. It won't take much glue. Leave it in the tube when drying. Turn it ... [Read More]

Model Rocket Building: Do It Yourself Baffle Part 3 (2010-08-15)

I checked the old Centuri catalogs for how many holes went on each side of the baffle. This is the upper Baffle disk with 8 holes spread out evenly on the outside of the disk. The lower disk (facing ... [Read More]

Model Rocket Building: Old Centuri Baffle Patent (2011-06-16)

It's amazing what you can find doing some patent searches. Here's one from March 6, 1973, that's the date the patent was approved. The application was submitted July 21, 1971. Enlarge the picture ... [Read More]

Model Rocket Building: Centuri Baffle Evolution (2017-01-10)

This is the first baffle system I remember, introduced by Centuri in 1971. CLICK HERE A coupler with two punched disks glued on either side. Very simple and effective, far easier than the ejection ... [Read More]

Rocket N00b: The Semroc Bandit - Part 1 (2019-11-11)

I've realized I made a mistake with #NaRoBloMo. That is, I promised to follow up the first N00b T00b post with another N00b T00b post, addressing specific topics. Then, I kept feeling obligated ... [Read More]

Rocket N00b: The Semroc Bandit - Part 2 (2019-11-17)

The ducted ejection motor mount system for the Semroc Bandit can be seen above. This is apparently a re-creation of the original Estes baffle system in the 1971 Bandit. The parts fit together ... [Read More]

Model Rocket Building: Estes Trident - First Baffled Ejection? (2020-03-27)

TRIVIA: The original (three side tubed) Estes Trident was probably the first model rocket that didn't require recovery wadding. The ejection gases were directed out into the three outside BT-5 ... [Read More]

Neurotic Ape Rocketry: Did some work last night (2008-07-29)

I got my Kevlar supplies finally so I was able to get some more work done. I glued in the Kevlar line and 1/2 an Estes shock cord to Vanishing. A somewhat difficult feet given that its a minimum ... [Read More]

Rocket Dungeon: New Build: Heavenly Hobbies Resistor 224 (2010-07-24)

The Resistor 224 Planetary Defense Weapon is the latest offering from Heavenly Hobbies. This dual motor, 24mm design features their �Amaze� ejection baffle, laser cut plywood ... [Read More]

Model Rocket Building: Quest MicroMaxx SVSS Fixes (2010-12-07)

I recently bought the Quest MicroMaxx Super Value Starter Set (SVSS). Quest had a holiday sale and at $36.00 it was too good to pass up. This included 50 MicroMaxx engines, a controller, MMX launcher ... [Read More]

Rocket Dungeon: Reviews: Heavenly Hobbies Resistor 224 (and H.H. Simit) (2010-12-18)

The Resistor 224 Planetary Defense Weapon is the latest offering from Heavenly Hobbies . This futuristic, dual motor, 24mm design features their ‘Amaze’ ejection baffle, laser cut plywood fins, ... [Read More]

Rocket Dungeon: Review: MRC - Iron Man (2010-12-30)

The out-of-production MRC Iron Man Heavy Launch Vehicle is 2" in diameter and 23.5" long. This review is a reverse-engineered description of this vintage kit.  I inherited it from a buddy who ... [Read More]

Rocket Dungeon: Review: Killer Bee (2011-01-30)

The Killer Bee is a 3" diameter rocket that I built around a set of Aerospace Composite fins from Giant Leap Rocketry. It sports a 29mm motor mount and zipperless construction. Construction: The ... [Read More]