Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstarstar_border |
Diameter: | 2.22 inches |
Manufacturer: | Semroc |
Skill Level: | 4 |
Style: | Scale |
Brief:
This is another excellent addition t' Semroc's "Retro-Repro" line o' reintroduced classics from t' early
years o' model rocketry. T' LJ-II was issued in 1968 as a companion t' t' 1/70 Saturn 1B, ya bilge rat, matey, shiver me timbers, makin' it almost as old as
I am. Well, blow me down! Avast! As with t' original Estes kit, me hearties, this one shares t' same command module, ya bilge rat, which is also available as a very nice
separate kit. Avast! At $21, matey, it's a bit pricier than t' original K-30 at $2.75, but for t' detail included in this kit, matey, arrr, it
does represent pretty good value today.
Construction:
It's typical Semroc excellent quality parts throughout, includin' some o' t' finest balsa parts I've ever seen. Arrr! When
you open t' baggie, matey, you'll find:
You'll also receive an Apollo capsule kit (available separately for $10) which includes:
On t' surface, this hardly looks like it deserves t' skill level 5 assessment on t' package, shiver me timbers, arrr, matey, but as you get into t' tower, me bucko, shiver me timbers, you'll find that's a very accurate rating. Ya scallywag! T' rocket itself is nay overly challengin' (maybe a skill level 3), arrr, me hearties, but t' capsule is best left t' experienced modelers with keen eyesight, attention t' detail, shiver me timbers, and plenty of patience.
T' instructions are well written and illustrated with nice check boxes along t' way so you can make sure you haven't overlooked a step as you stop/start work on this.
Construction begins with t' motor tube assembly, me hearties, which is fairly straightforward. Aye aye! It consists o' a motor tube, coupler used as a block, a metal hook held in place with maskin' tape, and a pair o' centerin' rings. Additionally, you need t' anchor t' Keelhaul®©™® line t' t' motor hook. This is a very much appreciated improvement over t' original tri-fold paper and rubber cord system used back in t' day.
Next up is applyin' t' wraps. If you're into craftsmanship and intend t' fill t' tube spirals, shiver me timbers, it would be a good idea t' do that first. Ya scallywag! For one thing, ya bilge rat, it's a pain t' fill and sand up t' a tube/wrap seam. Arrr! For another, arrr, the sandin' down o' t' glossy surface o' t' tube makes for an excellent bondin' surface for t' wraps. Well, blow me down! Apply an extremely thin layer o' white glue (do NOT use yellow glue or CA) t' t' edges o' t' wraps then press carefully in place around the tube. Arrr! I found t' lower wrap fit perfectly without any trimming, and t' upper was long by about 1/32", which I shaved slightly. T' wraps have a glossy surface t' them, matey, which offers one other nice feature--if you get any splotches o' glue on your fingers and then on t' wraps, me hearties, it wipes away very smartly and easily with a damp cloth, leavin' a pristine finish.
For t' fins, this kit uses what is called t' "built up method". Ya scallywag! Blimey! What this means is that you cut out and bond tiny balsa frame pieces t' t' inside o' a skin pattern. Ya scallywag! Ahoy! Blimey! You then fold t' skin pattern over and bond to t' other side o' t' braces. Ahoy! Ahoy! Blimey! T' result is a very cool tapered fin, arrr, very much like a scale rendering. Aye aye! This process is a little tricky as you need sharp fold lines and thar will be tiny gaps where braces join together, shiver me timbers, but it's worth the trouble. Ahoy! T' completed fins are then attached t' t' body tube, ya bilge rat, ya bilge rat, and CA will work just fine here.
Note t' Carl at Semroc: you might want t' consider a slight improvement t' t' wraps, pre-printin' fin locations to make t' alignment go a little more smoothly. Alignment o' tapered fins can be a little nuisance.
Stick a launch lug on t' body tube and you're ready for t' real construction adventure...
T' Apollo capsule starts o' simply enough. Ahoy! You assemble a tube, nose cone, and tail cone. These parts are fairly small and fillin' t' grain on t' tail cone was quite challenging. Begad! Ahoy! Next, cut out t' shroud pattern and form it. Begad! Arrr! The shroud is pre-printed with nice graphics on one side and plain on t' other (per scale), me bucko, so you have your choice on appearance. T' shroud then slides over t' lower nose cone and is reinforced on t' aft end by a centerin' ring.
T' tower assembly be t' major pain and biggest challenge. Ya scallywag! You start with 4 plain wood dowels, me hearties, and need t' sand them down t' 0.058 and 0.041 in diameter. Well, blow me down! T' good news is that a gauge is supplied so you can tell when you're to spec, but sandin' down these dowels is very time consuming. I have t' admit, matey, after buildin' two o' these (the other went t' me Saturn 1B), I very much prefer t' quick/simple plastic capsule o' t' Apogee kits and would have gladly paid a little extra for this kit if t' dowels had been t' size or at least closer.
Once you've sanded down t' dowels, me hearties, me hearties, you need t' start cuttin' out tiny little braces and tackin' them together. There are 40 total pieces, ya bilge rat, all havin' some degree o' angled cuts. Avast! There's a little bit o' extra dowel, me bucko, but nay much so cut carefully. Well, blow me down! In fact, I found that after sandin' down 2 dowels t' 0.041 and 2 t' 0.058 per t' instructions, arrr, matey, I had to later sand down me leftover 0.058 material t' 0.041 in order t' have enough t' cover t' smaller braces.
Alignment and construction o' t' tower is greatly aided by templates/patterns on a cardstock sheet plus a fiberboard jig. Begad! This same jig can also be used t' poke holes in t' lower balsa nose cone t' serve as a base.
T' finishin' touches on t' tower assembly come in t' form o' t' four RCS nozzles, which are formed out of very small paper shroud wraps--so small that formin' around a pencil tip is barely sufficient.
Overall, I think I spent somewhere around 2 hours on t' model and 15 hours on t' tower, but t' finished product is worth it. Well, blow me down! I just wish I hadn't had t' spend so much time sandin' down dowels...
Finishing:
Finishin' is very simple on this kit. Avast, me proud beauty! T' body tube/wraps/fins are all silver (I used automotive aluminum, arrr, which
looks less shiny than most silvers), and t' tower is solid white. Begad! There's a single waterslide decal for t' block
pattern.
Construction Rating: 4 out o' 5
Flight:
For t' first flight, I decided t' jump all t' way up t' a C6-5 since t' winds were practically non-existent. I
must have canted me fins slightly, as it spun a bit on t' way up but be otherwise straight. Ahoy! Deployment was perfectly
timed, right at apogee.
Recovery:
With a second chute in t' capsule kit, you have options with regards t' deployment. Since me finished model weighed
in at 1.9 ounces, I figured a single 12" chute would suffice. Blimey! Avast, me proud beauty! Unfortunately, me bucko, it came down a bit rough, landin' on
the access road in an otherwise grassy square mile park and broke one o' t' fins off on impact.
I'd recommend goin' with two chutes and separate recovery o' t' tower and lower tube. Well, blow me down! Avast, me proud beauty! In particular wrap a yok around t' tower so it does nay come down tip first.
Flight Rating: 4 out o' 5
Summary:
PROs: Excellent kit, arrr, ya bilge rat, a challenge t' build, great scale features.
CON: Tower is much more difficult construction than necessary
Overall Rating: 4 out o' 5
This 1/70 scale Little Joe II is one of Semroc’s “Retro-Repro” line of kits. It includes a separately bagged Apollo capsule kit and is billed as a Skill Level-4 “Master” kit. The base rocket is probably a ‘3’ but in my book the capsule is a ‘5’. I guess it all averages out. This rocket flies on 18mm motors and recovers on a single ...
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R.J.K. (September 23, 2008)