The face cards lists the name of this flying model rocket as Seieron 3. The instructions and decals both list it as the Seiron 3. Two against one, so we're calling it a Seiron. This is a cluster rocket and flies on three 18mm model rocket motors (A, B or C). To fly it, you'll need a clip whip. It is listed as a Skill Level 3 kit, yet is very easy to build. The kit is quite reasonably priced, $13.95 at the time of this review.

Parts List

As is the case for most model rockets, the kit is sold in a bag with a colorful face card. The balsa parts were good quality parts.

- 2 body tubes, 3 motor tubes
- balsa transition (with hook) and nose cone
- 3 balsa fins (pre-cut)
- launch lug
- parachute assembly
- shock cord
- decals and assembly instructions

No special tools or supplies needed to build this one, some glue will do the trick.

Construction

Motor mount assembly is quite different for this rocket. There are no centering rings. Simply glue and engine block in each motor tube and glue the three motor tubes together. Slide this assembly into the body tube as directed and you're done. This method leaves some gaps between the body tube and motor tubes. Some balsa filler was used to fill those.

The fins are attached between the motor tubes. The transition and nose cone were glued to the upper body tube. You can see the filler on the tubes and balsa to get that smooth finish. All that's left is the shock cord and you're ready to prime and paint.

I made a bad mistake while building the rocket. I glued the launch lug onto the body tube before attaching the fins. The launch lug lined up perfectly with one of the fins. This made it so it couldn't slide onto the launch rod.

Sadly, this didn't become obvious until after the rocket was already painted and loaded up with engines. It was flown from a tower that day. Most likely, I've remove the unfortunatly located launch lugs and attach new ones.

Measurements

The Seiron 3 is 26.25" long and the lower body tube has a diameter of 1.6". The face card lists no estimated weight. Without motors, this one came in at 3.2 oz.

Finishing

After a coat or two a grey primer and a coat of white primer, the Seiron 3 was ready for paint.

Rust-Oleum gloss white and sunrise red were selected to match the color scheme on the face card.

The decals haven't been applied yet, that will be done once the launch lug issue (see above) is corrected.

Flight Data

Starlight lists a number of suggested motors. As this is a cluster rocket, three of the same motors should be used for each flight. The motors listed ar : A6-4, A8-3, B6-6m and C6-7.

The first went went perfectly on a combo of 3x C6-7. Very straight boost, out of sight. The parachute was replaced with a streamer and the model rocket was recovered fairly closely to the pads.