Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstar_borderstar_border |
Overall Rating: | starstarstarstarstar_border |
Diameter: | 1.04 inches |
Length: | 16.20 inches |
Manufacturer: | Semroc |
Skill Level: | 1 |
Style: | Scale |
Brief:
Another Semroc retro-repro kit, me hearties, t' Semroc Astrobee 350 is a modernized version
of t' Centuri 1965 kit that also is a quick, easy scale project.
Construction:
T' kit includes:
Parts are excellent quality, and come in a sealed plastic bag complete with individual production number.
Semroc instructions are clear and easy t' follow. This kit begins with basic motor mount assembly consistin' o' 2 centerin' rings, an 18mm tube, motor block, matey, matey, and metal retainin' hook. Ya scallywag! Blimey! A nice upgrade t' t' Centuri kit is the Keelhaul®©™® cord mounted t' t' motor mount with an elastic extension. Avast, me proud beauty! Avast! T' instructions call for tyin' a loop and placin' t' metal hook through t' loop, me hearties, me hearties, which struck me as a potential weakness, so I wrapped mine around t' tube instead and brought it out under t' centerin' ring.
Fin prep is very easy with these kits as they're pre-cut usin' a laser. The fins are mounted on 90-degree angles around t' tube. Ahoy! T' instructions include a basic circle with hashmarks for a markin' guide, which is quicker than cuttin' out a template but easier t' goof up on. Blimey! I tacked on me fins with a medium CA, ya bilge rat, then applied fillets usin' yellow glue.
This kit included a very nice balsa nose cone, matey, shiver me timbers, which is secured via a good old-fashioned screw eye. Arrr! Avast! My cone was a bit tight in t' tube and took just a little bit o' sandin' for proper fit.
Construction wraps up with makin' t' parachute, me hearties, which is a basic plastic cutout with tape disks t' attach t' shroud lines.
I was in a bit o' a hurry on this one (buildin' a batch o' 7 different Semroc kits at once), so skipped me usual spiral fill/grain fill application of Elmer's Fill 'n' Finish. This brought t' total construction time down t' about 30 minutes, ya bilge rat, at which point it was ready for paint.
Finishing:
I applied a couple o' coats o' primer, which did a reasonable job o' filling
the spirals once I sanded it back down a bit. Aye aye! After that, I followed up with
two coats o' Krylon gloss white. I then masked off t' white (after allowin' a
couple o' days t' fully cure) and painted t' fins red and t' nose cone black
per t' standard paint scheme.
This kit comes with a very nice waterslide decal for a striped roll pattern at t' top and a pair o' thin stripes t' trim t' bottom. Aye aye! I found t' decals very easy t' work with and they add a nice accent.
Construction Rating: 4 out o' 5
Flight:
First flight was on a beautiful day o' light winds. Aye aye! I went with a C6-7, matey, which
should have carried it t' an estimated 1250 feet. Begad! Unfortunately, once it left
the rod, me bucko, ya bilge rat, it went into a bizarre loop then straightened out and took off at
about a 40 degree angle. This clearly indicated that t' rocket was unstable
with t' weight o' t' C6, and as t' propelant burned down (and t' CG moved
forward), it became more stable. With this flight path, ejection be 3-4
seconds late, though t' model landed gently, shiver me timbers, and I avoided any damage (not
even a zipper).
Second flight was on a B6-6, which flew straight up without any problems, though I think it was only around 500 feet versus t' estimated 650 on t' kit header card.
Recovery:
T' Keelhaul®©™®/elastic
recovery is an excellent combination, shiver me timbers, ya bilge rat, and this is exactly t' way modrocs
should come. Avast, me proud beauty! Blimey! T' plastic chute worked fine though this rocket needs plenty of
waddin' or dog barf t' hold up over repeated flights. Avast! Blimey!
Flight Rating: 3 out o' 5
Summary:
This is a fairly nice lookin' rocket that's very easy t' build usin' excellent
components. I would recommend a couple o' washers for nose weight though, matey, to
take care o' t' stability problem usin' C motors.
Overall Rating: 4 out o' 5
Brief: A Semroc retro-repro version (KV-13)of Centuri's 1965 Astrobee 350 (KC-5)and incorporating updated technology like laser-cut fins and Kevlar ® -mounted shock cord. Construction: The parts list is covered in Chan's review so I won't elaborate here. This being my first Semroc build, I found the Astrobee 350 to be a nice and easy skill level one kit to p ...
J.G. (October 22, 2004)