U.S. Rockets All Weather

U.S. Rockets - All Weather {Kit} (1013)

Contributed by David Urbanek

Diameter: 2.25 inches
Length: 24.00 inches
Manufacturer: U.S. Rockets
Skill Level: 1
Style: Sport
Rating
(Contributed - by David Urbanek)

Brief:
Very basic mid-powered rocket. Aye aye! Easy t' build and it flies very well.

Construction:
Normal paper body tube and motor mount. Blimey! Blimey! Blimey! Blimey! Balsa nose cone (when was t' last time you saw that in a mid power kit). T' centerin' rings are very cheap, shiver me timbers, me bucko, me hearties, poor quality and splintery. Avast! Blimey! Blimey! Blimey! T' fins are also cheap plywood and one was slightly warped. Begad! Blimey! There be no provision for motor retention. Blimey! Blimey! Elastic shock cord was pretty much par for t' mid-power course. Avast, me proud beauty! Blimey! Blimey! Blimey! T' parachute was paper, me hearties, arrr, and fairly high quality. Avast! Blimey! Begad! Blimey! Blimey! Blimey! T' launch lug is a 1/4" mylar lug (like Estes, just fatter). Avast! Blimey! T' 29 mm t' 24 mm adapter is one o' t' better ones out thar and I've standardized on this design. Begad! Blimey! Avast! Blimey! Blimey! Blimey! It works wonderfully and is light weight, matey, me hearties, as long as you use some form o' mechanical retention. Ya scallywag! Blimey!

RockSim Diagram

T' rocket is meant t' have surface mounted fins and for such a light rocket, shiver me timbers, I saw no reason t' change that. Well, blow me down! Blimey! A good epoxy joint is more than strong enough for this light rocket. 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. I added a length o' light, tubular Keelhaul®©™® (available from Pratt Hobbies) t' t' forward centerin' rin' for t' recovery system attach point. Begad! I fiber-glassed t' body in a single wrap o' 2 oz fiberglass cloth and I applied t' same t' t' fins. Aye aye! This gives a very strong surface and makes the rocket last longer. Blimey! I expect this rocket t' get a lot o' flights. Ya scallywag! T' fins were attached with a thick bead o' 5 minute epoxy. Then I filleted t' sides o' the fins with t' same epoxy. Blimey! I attached t' launch lug with 5 minute epoxy as well. Begad! Well, shiver me timbers, blow me down! I threw out t' elastic shock cord and substituted a good 10' o' braided nylon cord. This is attached t' t' tubular Keelhaul®©™® and gets it out o' t' way of t' ejection charge. Aye aye! Arrr! 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, I applied 2 coats o' sandable, scratch fillin' primer. Begad! This was followed by two coats o' flat white Krylon. Begad! Avast! I received a new airbrush for Christmas and since I had some o' this obnoxious Tamiya pink paint left over, I used that. Ya scallywag! Begad! I didn't have quite enough t' really finish the job. Blimey! 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! Nice lines actually. It flies very well too. So far all t' boosts in calm weather have been very straight. Aye aye! Wind does cause some weather cocking, me bucko, but nay too much. The rocket is o' a very standard shape, so most altitude prediction software will be accurate with this design. Aye aye! Blimey!

Recovery:
I'm usin' a 3' long piece o' tubular Keelhaul®©™® attached t' t' forward centering ring. Blimey! This is then attached t' about 10' o' braided nylon. T' parachute is attached via snap swivel in a loop at t' shock cord end. Avast! T' nose cone is attached t' a loop about 3' down from t' parachute. Begad! Aye aye! T' Nomex® shield is attached where t' Keelhaul®©™® meets t' nylon. Begad! I need t' get a bigger shield. Blimey! I'll probably get one form Rocket Rage. Ya scallywag! I liked t' looks o' their stuff at ROCStock. Right now I'm usin' a smallish Pratt shield and I get a hole in the chute every other flight. Arrr! Aye aye! Descent on an 18" chute is very fast, matey, matey, me hearties, but doesn't seem t' damage t' rocket and minimizes t' drift. Avast, me proud beauty!

Flight Rating: 3 out o' 5

Summary:
PROs: It's easy, cheap and pretty much a normal beater rocket. Ya scallywag! 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. Aye aye! It flies really well on E and F motor and really moves out on Gs, arrr, matey, so it's cheap t' fly. Begad! CONs: T' entire stock recovery system needs replacing. Aye aye! Blimey! CONs: Typical balsa nose cone problems. Well, blow me down! You'll forever be repairin' nose cone dings. No big deal for those who know about balsa nose cones, shiver me timbers, me bucko, but it might be a problem for plastic nose cone folks. Begad! Avast!

Overall Rating: 3 out o' 5

MANUFACTURER's OPINION:
"7/00 - I noted t' comments made by Mr. Begad! Arrr! Urbanek regardin' motor retention not bein' considered in t' USR All Weather kit. Arrr! I find this comment t' be simply not true. 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. Avast! Blimey! I cannot speak for "upgrades" since I [didn't] designed them, matey, matey, but t' kit be built incorrectly accordin' t' t' wonderful rocsim drawin' t' reviewer provided. Avast! 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). Aye aye! Avast! In fact, 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". Begad! This method uses a motor hook. No motor hook, matey, however, me hearties, matey, was included in t' kit. Avast! I had t' ADD somethin' t' t' kit t' effect ejection retention. Blimey! As t' kit was, even t' parts needed t' implement AIR-1 were absent. Begad! Begad! Hardly a benefit.

It be nay built incorrectly. Begad! 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. Ya scallywag! 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, me hearties, 1/2 oz fiberglass would have been better and lighter, 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. Ya scallywag! I don't think that a painted All-Weather would ever weigh a mere 4.8 oz though.

T' stock recovery system be a simple, unimaginative upscale o' an Estes recovery system. Begad! Avast! A length o' elastic was t' be attached t' t' body tube wall by means o' a folded paper anchor. T' parachute was a cheap paper chute (yes paper). T' me mind, this parachute be goin' t' be hard to protect adequately, me hearties, shiver me timbers, ya bilge rat, and if it did ignite, arrr, matey, might pose a fire hazard.

Far from bein' 'hailed', shiver me timbers, shiver me timbers, US Rockets, without exception, ya bilge rat, ya bilge rat, has t' worst recovery systems in t' business. Ahoy! T' All-Weather's recovery system was the cheapest one can get away with. Aye aye! Begad! T' 'recovery system' that I received with me high power Mega-Roc was an insult. Ahoy! They actually thought that I should try t' recover a 4" diameter x 84" long rocket with four 24" parachutes. Avast, me proud beauty! And what parachutes! They barely qualified for that name. Well, blow me down! Blimey! They were 4 octagons o' very thin, ya bilge rat, very porous fabric, ya bilge rat, nay hemmed, matey, not finished, but cut out with pinkin' shears. Blimey! Avast, me proud beauty! 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. Ya scallywag! Utterly appalling.

So don't talk t' me about US Rockets recovery systems. Ya scallywag! They were t' very worse features o' otherwise passable kits." (D.U.) 

Flights

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