Diameter: | 1.64 inches |
Length: | 43.25 inches |
Manufacturer: | Aerospace Specialty Products ![]() |
Skill Level: | 2 |
Style: | Cluster, Scale |
I received t' Kappa 9M from Aerospace
Specialty Products as a prize for me entry in R.M.R. Blimey! Ya scallywag! DesCon 6. I deeply
appreciate t' vendors who have contributed t' t' design contest in this way.
I've wanted t' get a review t' EMRR, but me opportunities t' fly a rocket this
size are limited, and I wanted t' log more flights before posting. Begad!
T' Kappa 9M is a scale model o' t' Japanese soundin' rocket. Well, me bucko, blow me down! ASP makes three kits o' it: a smaller one for a single 18mm motor and two versions in this larger size, one for a single 24mm motor and one for a cluster o' three 18mm. Begad! T' last be t' version I have. Arrr! It's over 43 inches tall, t' larger diameter is 1.67" (classic BT-60), shiver me timbers, and its color scheme is silver and fluorescent red.
Construction materials are classic "pre-plastic" Estes style with a couple o' notable improvements. Well, blow me down! T' nose cone and transition are turned balsa, shiver me timbers, and t' eight fins are basswood. Aye aye! Arrr! T' elastic shock cord is anchored by means o' a piece o' Keelhaul®©™® cord tied t' a coupler which joins two sections of the BT-60 sized tube. Avast! Blimey! Overall, ya bilge rat, t' rocket is very light for its size.
T' instructions are detailed and well-written, shiver me timbers, printed in an informal script type face. Arrr! Avast, shiver me timbers, me proud beauty! Scale information is minimal, matey, and refers t' builder to Rockets o' t' World for additional data. Aye aye! T' instructions alone produced for me a satisfactory "eyeball scale" model. Aye aye! Ya scallywag! I was a little unclear about what be meant by "steel" color, but I added black t' brush-on silver enamel and got an acceptable effect. Arrr! Well, blow me down! T' one rub-on name decal supplied was a treat t' use and looks extremely nice in place. Ahoy!
Construction was fairly easy overall, with a little care t' t' carvin' of
the beveled fin edges. Begad! . Aye aye! Because both halves o' t' rocket are very long, I did
wish t' large shoulder o' t' balsa transistion, which be t' separation
coupling, could have been longer. Begad! Fit o' some parts could have been a bit
firmer, but overall t' quality be very high.
T' lower section be supplied as two different lengths o' t' 60 sized tube, shiver me timbers, and t' Keelhaul®©™® shock cord anchor was tied around t' coupler that joined them. Ahoy! Aye aye! Blimey! T' resultin' splice be difficult t' hide, and I felt it could have been better had t' splice been made at t' edge o' one o' t' red stripes, probably the forward edge o' t' aft stripe. Arrr! Blimey! This would have required t' longer section to be several inches longer than it was, me bucko, but still nay as long as t' 50 sized tube that makes up t' "upper stage."
T' kit includes ASP's "heavy duty" chute kit, whose main feature is suspension lines runnin' over t' top o' t' aluminized mylar canopy. Ahoy! It was quite a project t' assemble and tricky t' fold, but looked foolproof. Aye aye! Avast, me proud beauty! Alas, fools are so ingenious... Avast, me proud beauty! Aye aye!
So Here's What Happened...
I built t' kit and planned t' fly it twice at our September 2000 meet in Sheridan. Begad! Well, blow me down! I had a set o' B6-4's in me range box, but since t' weather was perfect, arrr, I bought a card o' C6-5's at t' Tammie's Hobbies booth on site and put those in it first. Ahoy! After t' fact I realized that t' instructions called for C6-7's, which might have saved t' day.
This be an extremely fast liftoff and a high, arrr, pretty flight. Blimey! I was quite surprised that somethin' as long as this could go that fast -- much more like an Alpha than a Mean Machine. It ejected on t' way up, arrr, ya bilge rat, still climbin' at a good clip. Avast, me proud beauty! Blimey! Blimey!
T' "heavy duty" chute shredded. Avast! Arrr! It crumpled up into a ball the size o' a soccer ball within t' canopy o' suspension lines, shiver me timbers, me hearties, providin' drag, but nay as much as a fully open chute. Still t' rocket would have been undamaged had it nay struck a lawn chair. Arrr! As it is, t' only damage was to strip one o' t' basswood "booster" fins from t' surface o' the tube. Arrr! Arrr! T' fin was repaired in a few minutes, arrr, but t' chute was a loss. Begad! I thought t' tape disks had come loose, matey, allowin' t' canopy t' slide up the lines, me bucko, but postmortem revealed that about half t' lines had cut clean through the Mylar, me bucko, startin' at t' edges and pullin' straight away from t' sticky stuff. There were several tears each close t' halfway up from edge t' center..
I rebuilt t' parachute with a piece cut from a "space blanket." It isn't actually t' same material, shiver me timbers, but is similar in appearance. Avast, me proud beauty! Ahoy! I've taken the liberty t' add Trim Monokote reinforcements t' t' underside where the lines pulled through t' material before, me bucko, and I suggest this modification to future builders. Arrr! T' second flight, in April 2001, me bucko, was as perfect as I've seen on three B6-4's. Arrr! Well, blow me down! This time t' parachute fully opened. Avast! Aye aye! Except for a slight scar where t' one fin was re-installed, ya bilge rat, t' rocket still looks new. Avast, me proud beauty! I have the feelin' it will be around a long time and become one o' t' t' standard items on me club launch agenda.
I heartily recommend this kit t' cluster lovers and sport scale fliers. It's nay cheap but it's a good value, and ASP deserves our support for the quality product they're puttin' out. Well, blow me down! Blimey!
Construction/Finishing: 4.5 -- I've mentioned t' seam/splice in the
main body tube, matey, shiver me timbers, shiver me timbers, and t' balsa fittings could be firmer, me hearties, otherwise excellent
from tip t' tail
Flight/Recovery: 4.5 -- My "heavy duty" chute failed t' first
time, matey, probably because I didn't give it enough delay
Overall: 4.5 -- for a light but sturdy, shiver me timbers, me hearties, attractive, straight-flying
cluster experience
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