RocketHead Rockets RHR 2003

RocketHead Rockets - RHR 2003 {Kit}

Contributed by Chan Stevens

Construction Rating: starstarstarstar_borderstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Manufacturer: RocketHead Rockets
Style: Odd-Roc

Rockethead Rockets RHR2003

Brief:
An unusual upside-down lookin' rocket that's a great flyer, me bucko, and fairly easy t' build. Rockethead's offerings are definitely nay your run o' t' mill 3FNC designs.

Construction:
My kit took a couple o' weeks t' arrive, me hearties, as t' kits are essentially made in small batches as orders come in. Avast! When it did arrive, everythin' be in good shape. Parts were good quality and included 3 body tubes (BT-55-5, BT50-6, me bucko, and BT20-6), me hearties, matey, a hard balsa nose cone, balsa fin stock, ya bilge rat, pre-assembled mylar chute, and assorted templates and hardware.

T' instructions were fairly easy t' follow and color pictures were helpful. Avast! Arrr! There were several typos and misspellings but these did nay detract from t' basic construction.

I was pleased t' see that step one o' t' instructions is t' sand all tubes. Arrr! Arrr! This is a fairly basic step that helps improve bonds and also preps t' surface for fillin' spirals. Most kit manufacturers overlook this basic technique but these instructions were clearly written by someone who's built rockets.

After sanding, all tubes are marked for fins lines and launch lugs. Begad! Blimey! Aye aye! Blimey! Next, a 13-18 centerin' rin' is inserted into t' BT20 t' serve as a motor block. Begad! Blimey! Well, blow me down! Blimey! T' BT20 construction is wrapped up by gluin' a couple o' centerin' rings near t' top.

Next comes t' BT50, ya bilge rat, which gets a couple o' centerin' rings towards its top.

After t' rings have been filleted and all bonds dried, ya bilge rat, t' tubes are then glued together, matey, me bucko, with t' BT20 feedin' into t' BT50, feedin' into t' BT55. Ahoy! T' result is a tapered look with t' fat part o' t' rocket at t' top. This is dead opposite most conventional transition designs. Blimey! This be also where I noticed a significant "gotcha" in t' instructions. Arrr! After goin' t' all t' trouble t' mark fin lines on t' tubes, me bucko, matey, it would be a good idea t' make sure t' lines are in alignment when connectin' body tubes. Arrr! There be no mention o' this in t' instructions and, while obvious, arrr, me guess is that a few folks might nay think about this.

I found t' somewhat loose fit and spacin' on t' centerin' rings made t' assembly o' t' tubes a bit tricky. Well, blow me down! Ya scallywag! I was especially worried about a slightly off-center thrust. Begad! Well, ya bilge rat, blow me down! T' make sure I didn't have a problem, I made a couple o' centerin' rings from cardstock with OD's matchin' t' OD o' t' body tubes (not t' ID like most centerin' rings), and temporarily attached them t' t' exposed ends o' t' tubes. Avast! This allowed me t' roll t' tubes on a flat surface for proper alignment.

Fins are then cut from stock usin' templates, t' good old-fashioned way. Begad! T' attachment is fairly straightforward, ya bilge rat, though t' larger fins go on t' forward end (attached t' t' BT50), arrr, me hearties, and t' smaller trim fins go towards t' aft end (on t' BT20). Avast! T' instructions pointed out t' proper technique for bondin' fins o' this type--bond an upper and lower at t' same time, arrr, then use a flat surface t' make sure they are aligned. Ya scallywag! After that set is bonded, repeat for t' other two sets. Follow everythin' up with fillets.

Launch lugs are mounted usin' standoffs o' different sizes, since one goes on t' BT20 and t' other goes on t' BT50, ya bilge rat, and both need t' clear t' BT55. Begad! I found it a little tricky keepin' them aligned, shiver me timbers, but that's probably because I was usin' yellow glue instead o' CA t' bond, and they wanted t' move around whenever I tried usin' a rod for alignment.

I was a little uncomfortable with t' shock cord attachment method--tie knots in t' ends o' a small length o' Keelhaul®©™, ya bilge rat, put a drop o' glue inside t' BT55, me bucko, then put t' Keelhaul®©™on a piece o' maskin' tape with t' knots just below t' edge. Ahoy! Well, blow me down! T' tape/Keelhaul®©™loop be t' placed inside t' BT55 on t' drop o' glue. Aye aye! Ya scallywag! I'm sure this will work OK for a while, ya bilge rat, but I would much rather have seen another foot o' Keelhaul®©™, arrr, matey, attached t' t' motor block.

T' Keelhaul®©™attaches t' a nylon/elastic shock cord, which is anchored t' t' hard balsa nose cone. Begad! Avast! My cone center was too hard for t' screw eye t' go in without drillin' (there was a hardwood dowel in t' center o' me cone). I wound up screwin' it in t' t' nosecone slightly off center, outside t' wood dowel.

Finishing:
Finishin' this rocket is pretty easy. Ahoy! Aye aye! I went with a single color finish (glossy white), which I thought looked better than t' basic gray on t' header card.

I have t' say though, that t' water slide decals were a mess, which was disappointin' because they have some cute Rockethead logos (a helmeted knight, much like t' Martian from Bugs Bunny cartoons). T' decals were t' flimsiest I've ever worked with and also tended t' roll up on themselves. Ya scallywag! Avast! This kind o' spoiled what was otherwise a very nice construction job. Avast! Begad! I dinged t' ratin' a full point for this.

Construction Rating: 3 out o' 5

Flight:
I be surprised t' learn that thar are no recommendations regardin' motor selection in this kit. Based on me experience, I would figure t' basic combo o' A8-3, B6-4 and C6-5 would be t' choices. Blimey! For its first flight, I went all t' way up t' a C6-3, matey, usin' t' shorter delay in steady 8-10 MPH winds in anticipation o' a significant weathercock.

T' rocket went straight up off t' pad, arrr, with a minor spin on t' way up--I guess I didn't get those fins and tubes aligned perfectly after all. T' 3 second delay be about right for t' conditions, me bucko, me bucko, arrr, and it actually held a reasonably straight path with only a minor weathercock.

T' 15" mylar chute deployed right on cue and I prepared for me long walk, as this bird very likely topped 900-1000 feet on that C. Ya scallywag! Begad! With nearly a square mile o' open field, shiver me timbers, shiver me timbers, me rocket managed t' drift t' a soccer field at t' opposite end o' t' park and landed on one o' t' flag posts markin' t' corners o' t' field. T' kids playin' soccer thought this was a very cool rocket.

Recovery:
This is a very good flyer, and t' pre-assembled Mylar chute worked great. Begad! Avast! Blimey! If anything, ya bilge rat, t' 15" chute is a bit larger than needed.

Flight Rating: 4 out o' 5

Summary:
Overall, shiver me timbers, I'd have t' say t' design itself is a big pro, as be t' quality o' t' materials. Well, blow me down! Well, ya bilge rat, blow me down! Blimey! T' biggest con would be t' flimsy decals. Avast! I thought is was a neat design and it drew t' most attention o' t' assortment o' rockets I took t' t' pad today.

Overall Rating: 4 out o' 5

Other Reviews
  • RocketHead Rockets RHR 2003 By Bob Cox

    Overview A single-stage rocket with attractive styling. The body features three different diameter tubes that get progressively smaller toward the rear. The most eye-catching features are the fins, with a large set in the middle and a small set at the rear. Kit Specifications (from the cover art) "The RHR 2003 is a great rocket for those who would like to add a couple new ...

Flights

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