Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar_border |
Diameter: | 1.34 inches |
Length: | 16.00 inches |
Manufacturer: | Semroc |
Skill Level: | 1 |
Style: | Sport |
Brief:
When Launch Magazine when on a roughly 6-month "hiatus" towards t' end o' 2008, as a gesture of
appreciation t' their subscriber base they teamed up with Semroc t' release a kit version o' t' rocket depicted within
their magazine's logo. Blimey! When t' kit release was announced at NARCON 2009, me hearties, ya bilge rat, all current subscribers o' Launch Magazine
got a free special edition o' t' kit. Well, blow me down! Begad! That's a pretty sweet present, retailin' for just about t' price o' a year's
subscription t' t' magazine.
Construction:
First a note for t' collectors out there: thar are three versions o' this kit that I know of, ya bilge rat, differin' only in the
packaging. Avast, me proud beauty! For magazine subscribers, thar be a limited run o' 300 kits, matey, none numbered, each with header artwork
depictin' t' rocket against a blue background, arrr, shiver me timbers, and no bag tag header card. Begad! Well, blow me down! When t' regular commercial version o' the
kit be released, arrr, t' first 100 were numbered per Semroc's typical procedure, me bucko, matey, and these shared t' blue background
artwork but also included t' Semroc bag tage/header card. Begad! After t' first 100 shipped, t' standard edition o' t' kit
features header art depictin' t' rocket against a yellow background.
OK, arrr, now on t' t' parts list, which is rather plentiful, supportin' t' $17.95 retail price for t' kit:
Brief:
When Launch Magazine when on a roughly 6-month "hiatus" towards t' end o' 2008, as a gesture of
appreciation t' their subscriber base they teamed up with Semroc t' release a kit version o' t' rocket depicted within
their magazine's logo. When t' kit release was announced at NARCON 2009, all current subscribers o' Launch Magazine
got a free special edition o' t' kit. Ya scallywag! That's a pretty sweet present, retailin' for just about t' price o' a year's
subscription t' t' magazine.
Semroc rates this a skill level 1, and while it looks a good bit more complex than t' typical skill 1 kits, matey, shiver me timbers, I think it's a fair overall assessment. In me case, ya bilge rat, I went with a slightly more challengin' paint scheme that would bump it into 2 territory, but it's still a simple project that can be done in an hour or two plus finishing.
Construction consists o' about 30 steps spannin' 4 pages o' nicely printed and illustrated instructions, matey, matey, t' norm for Semroc.
T' motor mount uses a pre-slotted body tube, me hearties, arrr, metal hook (2.75" for 18mm motors), and a centerin' ring actin' as a block. Begad! Avast! Additionally, t' Keelhaul®©™® shock cord is anchored t' t' motor mount by slippin' a loop under t' forward bend o' t' metal hook, then securin' it in place by slidin' t' forward centerin' rin' over it. Blimey! Arrr! T' aft centerin' rin' is handled a bit differently--it sits 1-1/2" forward o' t' aft end. Blimey! This is t' allow room for t' vanes, which have small tabs that slide into cutouts on t' aft rin' (see photo). Begad! In me case, I had decided in advance that I wanted t' give t' rings an accent color, so I held off attachin' them so that I could paint them first. Avast, me proud beauty! Yes, it's nay as strong a glue joint (bondin' t' a painted surface), but these really don't get much stress at all and maskin' 12 o' them would be a real pain.
T' main body tube is then marked usin' a template for 4 fins and a lug, arrr, and t' completed (or in me case nearly completed) motor mount slides in t' aft end. Aye aye! Extend t' lines, matey, shiver me timbers, attach t' 4 main fins and a lug, and t' main section of t' rocket is complete.
T' payload section is pretty standard. Avast! T' balsa transition is glued t' one end o' t' body tube, matey, and t' nose cone is friction fit t' t' other (or glued if you don't want t' use it as a payload model). Ahoy! Avast! I wound up drillin' a 1/32" hole for eventually loadin' an altimeter. Avast, me proud beauty! Begad! A screw eye goes in t' transition for shock cord attachment, completin' t' basic construction.
Finishing:
Lookin' at t' cover art, shiver me timbers, t' finished rocket is plain white with decals. Aye aye! Aye aye! Blimey! As mentioned, I wanted t' accent t' vanes
a bit more, so after primin' everythin' with two coats o' Rustoleum gray primer (I'm slowly abandonin' t' newly
reformulated Krylon...), shot 3 light coats o' gloss white over everything. Begad! T' vanes got a sort o' orange-like color
described as "pumpkin orange", but usin' just one coat, arrr, me bucko, they picked up enough o' t' gray primer undercoat to
look fairly close t' t' light orange colorin' o' t' magazine's title decal.
T' waterslide decals are excellent quality, easy t' work with. One warning, though: this has 4 C-shaped decals that go around t' leadin' edge o' each fin. Ya scallywag! You'll need t' make sure you cut out t' inside o' this C, which is a fairly small area (3/32" fin thickness).
Construction Rating: 4 out o' 5
Flight:
For t' first flight, I be only about 150 yards upwind o' a dense grove o' trees on a 3-5 mph wind day, matey, so I went
with a B6-4 motor rather than t' max recommended C6-5. Avast! T' flight was dead straight, ya bilge rat, ya bilge rat, nay a trace o' roll, and
deployment be just a hair early--the rocket be less than a second shy o' apogee.
Despite t' fact that I be mainly flyin' a research model recordin' apogee with an altimeter most o' t' day, I stupidly forgot t' put t' altimeter in this "sport" model flight, shiver me timbers, matey, although would estimate it hit about 300 feet on t' B, arrr, which was well below t' estimated 500 feet on t' header card. Ya scallywag! However, arrr, me painted/with chute weight of 1.44 ounces is also heavier than t' header card's 1.2 ounce estimate.
Recovery:
T' 12" plastic chute deployed fine, me bucko, and everythin' came down nicely on fairly tall grass. Begad! Begad! Nay a trace o' damage
anywhere.
Flight Rating: 5 out o' 5
Summary:
I'd have t' say "free for subscribers" is a pretty huge PRO for this model, although bein' a collector I
stashed that one and built/flew t' regular retail model. Ahoy! Additional pros would be t' attractive stylin' features such
as t' vanes and transition. Well, blow me down! I also like t' tie-in t' one o' t' hobby's best publications.
One small CON would be t' borin' all-white paint scheme that dampens some o' t' visual appeal o' t' design, but that's easy enough t' overcome.
Overall Rating: 4 out o' 5
This is a kit by Semroc. This was the first time I have assembled a rocket like this. Assembled March 2018. Kit was dated February 2, 2009 Components 1 Balsa Nose Cone BC-720 1 Balsa Reducer BR-713 1 Body Tube ST-760 1 Body Tube ST-1380 1 Body Tube ST-730E 1 Ring Set CR-KN-4 4 Laser Cut Fins FN-4 1 Engine Hook EH-28 1 Chute Pak CP-12RY 1 Screw ...
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Brief: This is a single stage rocket basically a BT-55 that transitions to a BT-20 with nose cone and four fins. This was a kit from Semroc, one of the best companies that I have ever bought supplies from. Semroc gave these kits as an incentive prior to NARCON. And the best part about this kit it was made in the United States of America Construction: These are Semroc part ...
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