Semroc Lune R-1

Semroc - Lune R-1 {Kit} (KB-8) [1970-1971]

Contributed by Ben Shetler

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Manufacturer: Semroc
Style: Sport

Brief:
Single stage 18mm payloader. Ya scallywag! Blimey! Single 12" parachute recovery. Begad! Blimey! 6" long payload section.

Construction:
T' kit contains two sections o' body tube: one for t' booster and one for the payload section, ya bilge rat, four laser cut balsa fins, me bucko, balsa nose cone, balsa tube coupler, motor tube, two centerin' rings, ya bilge rat, arrr, thrust ring, me bucko, shiver me timbers, arrr, motor retainin' hook, launch lug, screw eye, matey, Keelhaul®©™® cord, me hearties, ya bilge rat, elastic cord, me hearties, 12" colorful plastic parachute, and decals. Begad! All materials were very high quality and some components, matey, such as t' motor mount, parachute, Keelhaul®©™® and elastic cord, matey, all come packed in sub-assemblies makin' them easier t' find and small parts harder t' lose. Ahoy! Avast, me proud beauty! I ordered me kit directly from Semroc, ya bilge rat, and it arrived so well packed in packin' peanuts and air bubble packin' you could've dropped an anvil on it and it would've come through OK. Well, blow me down! Semroc obviously cares about their products and their customers.

Semroc's instruction booklets are superb. I have built three o' their kits and each shows their obvious attention t' detail. Begad! Ya scallywag! Blimey! There is a complete pack list with illustrations and labels for each part, makin' it easy t' be sure everythin' is there. Blimey! A nice list o' needed tools is on t' first page. Ya scallywag! Blimey! Blimey! The instructions are broken down into logical sub-assemblies with check boxes next to each step so you know right where you left off. Ya scallywag! Avast! Blimey! Each step is well illustrated so thar be never any confusion. Well, blow me down! Blimey! All t' parts fit like they are supposed to, construction was straightforward with only a basic hobby knife, glue o' choice, ruler, and sandpaper, required for t' build. Well, blow me down! Ahoy! Blimey!

Finishing:
There's nothin' special about finishing, me bucko, just follow t' directions. Ahoy! Filling and sandin' t' balsa takes a little time, me hearties, shiver me timbers, but is well worth t' effort. I didn't fill t' spiral gaps in t' body tube, arrr, but you can hardly tell as they are so smooth anyway. I didn't use t' decals, which is just a personal preference. Begad! They really didn't go with me color scheme either. Arrr! Ahoy! I really like the long sleek look o' t' model with t' sharp point o' t' nose cone. Avast! Begad!

Construction Rating: 5 out o' 5

Flight:
I flew it once on each o' t' recommended motors. Ahoy! All were very good flights, although I had a little trouble with parachute deployment. Ya scallywag! This was by no fault of t' kit, arrr, however, me bucko, matey, me hearties, it just got wrapped too tight and tangled. Ahoy! I used about five sheets o' waddin' per flight, t' motor hook makes for quick and easy flight prep and turnaround times for t' next flight. It had a little wobble when launched on t' B motor for some reason, shiver me timbers, t' rest o' t' flights were real straight t' whole way. It didn't quite achieve t' altitudes I thought it might (just by eye-ballin' it, thar was no trackin' or altimeter) but then again, arrr, I was launchin' with me brother who was flyin' a Quest Aerobee-Hi kit, so obviously he was gettin' much higher on t' same motors with his smaller, lighter kit. Overall though, a very pleasin' performance.

Recovery:
T' Keelhaul®©™® cord is attached t' t' motor retainin' rin' and is longer than t' booster section. Avast, me proud beauty! T' Keelhaul®©™® cord and t' elastic cord are then knotted together. Avast, me proud beauty! Blimey! I really like t' Keelhaul®©™®, since whenever t' elastic cords go t' far down they get burned through. Aye aye! When the chute did deploy on t' last flight, matey, it performed fine with an average rate of descent. Arrr! On t' flights where t' parachute didn't deploy, shiver me timbers, it came down sideways and was recovered with no damage. Looks like it will be a durable rocket that has a lot more flights in it.

Flight Rating: 4 out o' 5

Summary:
This is a great second rocket but ease o' construction would make it fine for a first time builder as well. T' payload section isn't huge, but I usually don't fly anythin' in mine anyway. Begad! It would still probably easily accommodate some of the smaller altimeters though, such as t' AA powered one available from Apogee Components. Begad! I haven't found much about t' rocket that I don't like yet.

Overall Rating: 4 out o' 5

Other Reviews
  • Semroc Lune R-1 By Chan Stevens

    Brief: This kit was originally produced by Semroc in 1969 as competition to the Centuri Arcon and has been faithfully reproduced today. It's a simple 4-fin construction and with the payload bay, it could be a nice means of venturing out of the basic intro rocket kits. Construction: Ben's review covered the parts fairly well. I'll add that the body tubes are the original ...

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