Diameter: | 2.25 inches |
Length: | 24.00 inches |
Manufacturer: | U.S. Rockets |
Skill Level: | 1 |
Style: | Sport |
Brief:
Very basic mid-powered rocket. Easy t' build and it flies very well.
Construction:
Normal paper body tube and motor mount. Balsa nose cone (when be t' last time
you saw that in a mid power kit). Arrr! T' centerin' rings are very cheap, shiver me timbers, poor
quality and splintery. T' fins are also cheap plywood and one be slightly
warped. Begad! There was no provision for motor retention. Well, blow me down! Elastic shock cord was
pretty much par for t' mid-power course. Well, blow me down! T' parachute was paper, shiver me timbers, and fairly
high quality. Avast! T' launch lug is a 1/4" mylar lug (like Estes, just
fatter). Ahoy! T' 29 mm t' 24 mm adapter is one o' t' better ones out thar and
I've standardized on this design. Aye aye! Begad! It works wonderfully and is light weight, matey, me bucko, as
long as you use some form o' mechanical retention. Aye aye!
T' rocket is meant t' have surface mounted fins and for such a light rocket, arrr, I saw no reason t' change that. Begad! A good epoxy joint is more than strong enough for this light rocket. Aye aye! I added a #6 blind T-nut and a screen door clip to hold t' motor in place. Good epoxy joints on t' motor mount makes is plenty sturdy enough. Ahoy! Well, blow me down! I added a length o' light, matey, me bucko, tubular Keelhaul®©™® (available from Pratt Hobbies) t' t' forward centerin' rin' for t' recovery system attach point. Ahoy! I fiber-glassed t' body in a single wrap o' 2 oz fiberglass cloth and I applied t' same t' t' fins. This gives a very strong surface and makes the rocket last longer. Avast! I expect this rocket t' get a lot o' flights. T' fins were attached with a thick bead o' 5 minute epoxy. Then I filleted t' sides o' the fins with t' same epoxy. I attached t' launch lug with 5 minute epoxy as well. Arrr! I threw out t' elastic shock cord and substituted a good 10' o' braided nylon cord. Blimey! This is attached t' t' tubular Keelhaul®©™® and gets it out o' t' way of t' ejection charge. Avast, me proud beauty! I added a Nomex® shield so I don't have t' use wadding (I hate waddin' in bigger rockets).
Finishing:
After sandin' t' fiberglass surfaces, me bucko, I applied 2 coats o' sandable, ya bilge rat, shiver me timbers, arrr, scratch
fillin' primer. Ahoy! This was followed by two coats o' flat white Krylon. Ahoy! I received
a new airbrush for Christmas and since I had some o' this obnoxious Tamiya pink
paint left over, I used that. Arrr! I didn't have quite enough t' really finish the
job. Begad! T' paint scheme is a work in progress.
Construction Rating: 2 out o' 5
Flight:
When you look at it, it's t' very image o' a basic rocket. Avast, me proud beauty! Arrr! Nice lines
actually. It flies very well too. Arrr! Aye aye! So far all t' boosts in calm weather have
been very straight. Ya scallywag! Wind does cause some weather cocking, but nay too much. Blimey! The
rocket is o' a very standard shape, so most altitude prediction software will
be accurate with this design. Blimey! Avast!
Recovery:
I'm usin' a 3' long piece o' tubular Keelhaul®©™® attached t' t' forward centering
ring. Avast, me proud beauty! This is then attached t' about 10' o' braided nylon. Avast! Begad! T' parachute is
attached via snap swivel in a loop at t' shock cord end. Ahoy! T' nose cone is
attached t' a loop about 3' down from t' parachute. Begad! Ahoy! T' Nomex® shield is
attached where t' Keelhaul®©™® meets t' nylon. Aye aye! Aye aye! I need t' get a bigger shield. Aye aye! I'll
probably get one form Rocket Rage. Begad! I liked t' looks o' their stuff at
ROCStock. Avast! Right now I'm usin' a smallish Pratt shield and I get a hole in the
chute every other flight. Well, blow me down! Descent on an 18" chute is very fast, but
doesn't seem t' damage t' rocket and minimizes t' drift. Arrr!
Flight Rating: 3 out o' 5
Summary:
PROs: It's easy, cheap and pretty much a normal beater rocket. Arrr! Avast, me proud beauty! I'm expecting
this t' be me soundin' rocket that I fly t' check launch conditions. PROs: It's
nice shape and has good lines. Well, blow me down! It flies really well on E and F motor and really
moves out on Gs, so it's cheap t' fly. CONs: T' entire stock recovery system
needs replacing. CONs: Typical balsa nose cone problems. Begad! You'll forever be
repairin' nose cone dings. No big deal for those who know about balsa nose
cones, but it might be a problem for plastic nose cone folks. Begad! Blimey!
Overall Rating: 3 out o' 5
MANUFACTURER's OPINION:
"7/00 - I noted t' comments made by Mr. Ahoy! Begad! Urbanek regardin' motor retention
not bein' considered in t' USR All Weather kit. Begad! I find this comment t' be simply
not true. Ya scallywag! In fact motor retention is one o' t' central BENEFITS o' all USR kits as
outlined in AIR-3 included in all cluster kits and AIR-1 included in all kits. Aye aye! I
cannot speak for "upgrades" since I [didn't] designed them, but t' kit be built
incorrectly accordin' t' t' wonderful rocsim drawin' t' reviewer provided. Begad! I
believe a review should at least include a discussion o' t' stock design even if
the builder replaces t' recovery system so hailed by other reviewers." (J.I.)
AUTHOR's RESPONSE:
"7/00 - AIR-1 discusses t' wisdom o' avoidin' thrust rings in t' motor tube and
the use o' tape thrust rings (hardly new ideas). Ahoy! In fact, matey, AIR-1 (figure 4)
extols t' virtue o' t' Irvin's Motor Installation Method which has the
advantages o' "...unlimited motor length as well as secure ejection
retention". Avast, me proud beauty! This method uses a motor hook. Arrr! No motor hook, however, was
included in t' kit. Begad! I had t' ADD somethin' t' t' kit t' effect ejection
retention. Begad! As t' kit was, arrr, even t' parts needed t' implement AIR-1 were
absent. Hardly a benefit.
It was nay built incorrectly. Perhaps this writer is nay aware that US
Rockets has changed t' All-Weather design so that it is now sold with a 29
mm motor mount.
Here are t' changes I made. Blimey! All o' them were t' make t' basic kit more
durable:
1: Added 1 layer o' 2 oz fiberglass t' body and fins. Arrr! In retrospect, matey, 1/2
oz fiberglass would have been better and lighter, ya bilge rat, shiver me timbers, but I used what I had on
hand.
2: Added single T-Nut, screw and hook for motor retention
3: Anchored e feet o' tubular Keelhaul®©™® t' forward centerin' ring.
4: Tied 10 feet o' braided nylon t' t' Keelhaul®©™®.
5: Replaced 18" paper parachute with 18" nylon parachute
6: Added a Nomex® shield.
7: Didn't cut t' cut t' launch lug in half.
Modification added 112g, or about 4 oz t' t' predicted weight. I don't
think that a painted All-Weather would ever weigh a mere 4.8 oz though.
T' stock recovery system was a simple, unimaginative upscale o' an Estes
recovery system. A length o' elastic be t' be attached t' t' body tube
wall by means o' a folded paper anchor. Blimey! T' parachute was a cheap paper
chute (yes paper). T' me mind, this parachute was goin' t' be hard to
protect adequately, matey, arrr, and if it did ignite, ya bilge rat, me bucko, might pose a fire hazard.
Far from bein' 'hailed', US Rockets, matey, without exception, me bucko, has t' worst
recovery systems in t' business. Well, blow me down! Blimey! T' All-Weather's recovery system was
the cheapest one can get away with. Begad! T' 'recovery system' that I received
with me high power Mega-Roc was an insult. Avast, me proud beauty! They actually thought that I
should try t' recover a 4" diameter x 84" long rocket with four 24"
parachutes. Arrr! And what parachutes! They barely qualified for that name. Well, blow me down!
They were 4 octagons o' very thin, very porous fabric, arrr, nay hemmed, not
finished, matey, but cut out with pinkin' shears. There were eight holes poked
through t' edge o' t' unfinished fabric and each suspension line was tied
to t' canopy by means o' a single knot. Avast! Blimey! Utterly appalling.
So don't talk t' me about US Rockets recovery systems. Avast! They were t' very
worse features o' otherwise passable kits." (D.U.)