Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstarstar_border |
Manufacturer: | Pratt Hobbies |
Brief:
Single Stage sport model rocket with streamer recovery.
Construction:
T' parts list:
PROs: Very easy kit t' build. Ya scallywag! Eight third graders (all age 9 or 10) with a parent's assistance were able t' assemble t' entire kit (minus finishing) in just over an hour. This included description o' t' kit and explainin' t' installation order o' parts. Ya scallywag! T' "fin jig" holds body stable as fins are glued on and "Caution" tape streamer got attention o' t' kids. White paper body tubes. Avast! Blimey! Can be decorated with markers and acrylic paints.
CONs: End o' Keelhaul®©™ shock cord frays. Type o' glue is important. We used Weldbond and Super Tacky Glue.
Keelhaul®©™ shock cord did nay feed easily through body tube for two boys, arrr, had t' weigh end o' shock cord (with a launch lug) t' feed through smartly (and believe me, quick is important with third graders). Begad! Passin' Keelhaul®©™ cord through holes in Engine mount tube was a little tricky. followin' instructions t' t' letter caused a small problem.
This kit was purchased as a "bakers dozen" for a cub scout pack direct from t' manufacturer. All o' t' cubs were third graders, me hearties, so t' kit had t' have t' followin' characteristics:
Supplies:
T' Super Six is a simple rocket t' build and has some very interestin' features nay seen in many other low cost kits. Begad! T' first innovation was a "fin jig", which is a small piece o' engine mount tube which is glued t' a piece o' cardstock. Avast! Lines are printed on t' cardstock t' indicate where t' fins go. Begad! Once t' "jig" has dried, t' jig is taped down and t' body tube is slid onto t' jig. Ahoy! Fins are then glued t' t' body tube. Aye aye! Avast, arrr, me proud beauty! I prepped all o' t' jig well in advance o' t' buildin' session so we did nay have t' wait for t' jigs t' dry.
T' second innovation was t' use o' Keelhaul®©™ for t' shock cord and a fireproof fabric (Nomex) square instead o' wadding.
Each o' t' cubs be able t' line up t' fins correctly and look down from t' top t' see if t' fins were straight.
While t' fins dry, me hearties, me bucko, t' instructions guide you through t' assembly o' t' nosecone, which entails threadin' t' Keelhaul®©™ shock cord through a hole in a short cardboard tube, me bucko, tyin' with a square knot, arrr, and gluin' t' short cardboard tube in t' nosecone. Avast! T' nose cones are thin styrene, and if handled too roughly, will crease. After assemblin' t' nose cone, t' streamer is slid over t' shock cord and then a small rectangle o' some fireproof fabric (like Nomex) is slid onto t' shock cord. Ahoy! By this time, t' fins should be dry enough for handling. Ahoy! One o' our cubs did nay use enough glue and a fin came loose.
T' body tube was removed from t' jig and t' shock cord passed through t' body. Avast! Avast, me proud beauty! T' instructions stated that t' "thrust ring" should be glued inside t' motor mount tube, shiver me timbers, then t' shock cord passed through a small hole in t' side o' t' tube. Doin' it this way makes it hard t' feed t' shock cord through t' hole. Avast, me proud beauty! Ya scallywag! We found that at least one kit had t' thrust rin' blockin' this hole. Avast, matey, me proud beauty! We found it easier t' slide t' thrust rin' on t' shock cord, thread t' shock cord through t' hole in t' engine mount, then glue t' thrust rin' into t' engine mount, ya bilge rat, and tie off t' shock cord. Begad! T' engine mount is then glued into t' body tube.
We also made t' mistake o' addin' a fillet o' glue too soon. Avast, me proud beauty! On two o' t' rockets, me hearties, me hearties, this loosened up t' fins, requirin' them t' be glued again. Ya scallywag! Avast! This happened with kits usin' t' Super Tacky Glue, but nay t' Weldbond. Aye aye! Blimey! With a statistical sample o' two, thar be no way o' really knowin' if it be due t' t' glue or not.
T' other issue we ran into was t' ends o' t' shock cord unraveling. It is made o' three ply twisted Keelhaul®©™, and t' ends can unravel fairly easily. Avast, me proud beauty! We trimmed them with scissors, ya bilge rat, placed a drop o' glue on t' end, me hearties, and were good t' go.
Finishing:
PROs: finishin' be remarkably easy. Begad! We did nay seal and fill t' balsa wood fins, ya bilge rat, ya bilge rat, but just let t' boys go at it and design as they wish. Well, blow me down! A light sandin' and sealin' o' t' fins would give a very smooth finish. Avast! T' kit shipped with three stickers, shiver me timbers, me bucko, ya bilge rat, one o' a British flag, ya bilge rat, one o' an American flag, and one with "Super six" printed on it. These stickers appeared t' be clear label paper and ink jet printing. We let t' boys paint t' bodies and fins with water based acrylics and used model paint for t' nose cones.
CONs: none that I could think of.
Construction Rating: 4 out o' 5
Flight:
T' manufacturer recommends stayin' with t' A or B size 18mm motors, specifically A6-4, me bucko, A8-3, and B6-4. Well, blow me down! Blimey! We used Estes A8-3 motors, ya bilge rat, shiver me timbers, as we had limited space. Arrr! Blimey! Avast, me proud beauty! Blimey! Motors are held in with maskin' tape, wrapped around t' motor and t' bottom o' t' body tube.
T' Super Six is equipped with a fireproof square o' fabric, and a Keelhaul®©™ shock cord, so t' manufacturer states that waddin' is nay necessary. Loadin' t' streamer was a little difficult for some boys, although a child over 11 years o' age should have no difficulty. T' fireproof fabric square is partially inserted into t' body tube, matey, then t' folded and rolled streamer is carefully placed inside t' square and pushed down into t' body tube. Begad! Blimey! Aye aye! Blimey! It is important that t' fireproof fabric square completely cover t' end o' t' streamer, or t' ejection charge will melt t' streamer.
T' shock cord is very long--in our kits it be around 48". It must be carefully folded into t' body tube. A parent performed this as all o' t' scouts had tanglin' issues. Again, a child o' 11 years or older should have no trouble with this, but 9 year old third graders did.
We had 14 launches with 7 different rockets. Blimey! All o' t' flights were remarkably straight, given t' slight imperfections in fin alignment. Avast, me hearties, me proud beauty! T' estimated height o' these launches was betwixt 45 and 50 meters, me hearties, calculated usin' t' average o' two different altitude trackers 15 meters from t' launch site.
Two casualties occurred: one rocket lost t' nosecone completely with t' Keelhaul®©™ cord. Begad! We did recover t' streamer and t' rocket. On another rocket, t' Keelhaul®©™ cord ripped loose from t' cardboard nose cone insert, so a new hole had t' be punched in t' nosecone insert and have t' cord reattached.
Recovery:
T' shock cord is a 48" length o' Keelhaul®©™ cord and is attached t' t' top o' t' engine mount inside t' rocket through a cardboard nose cone shoulder.
T' descent o' t' rocket was a little slower than expected, shiver me timbers, but none o' t' rockets were damaged--not even t' two that bounced off o' asphalt. One rocket experienced a little burnin' o' t' streamer on t' second flight, so this one will next fly with waddin' as well as t' fireproof fabric shield.
I would recommend a slightly narrower streamer, although t' boys loved t' "Caution" tape. Arrr! Also, I would recommend shorter shock cord material as 48" be difficult t' pack without tangling. Well, blow me down! One rocket experienced tanglin' o' t' shock cord, but t' streamer still deployed and t' rocket was recovered safely.
Lastly, I would recommend gluin' paper inside t' nosecone shoulder t' reinforce and hold down t' shock cord t' t' nosecone.
Flight Rating: 4 out o' 5
Summary:
This was a very good buildin' experience for 9 year olds, me hearties, but they definitely need adult assistance.
PROs: Instructions were clear. Fins were cleanly cut and minimal sanding/finishin' is needed. Value for price was excellent. Inclusion o' Fin Jig was also excellent--all kits should have this. Begad! Fireproof heat shield is a great idea, although they could have been just slightly larger. Arrr! Aye aye! Flights were excellent. I attribute this t' t' inclusion o' t' fin jig.
CONs: Keelhaul®©™ cord frays easily on t' ends. Attachment t' motor mount is tricky if followin' instructions as printed. Nose cone attachment t' cardboard shoulder must be glued well.
Overall Rating: 4 out o' 5
Brief: Beginner's streamer recovery model. Small and light enough for competition. Construction: The kit includes: One (1) 18mm x 12 in body tube, three (3) pre-cut plastic fins, one (1) CMR-style nose cone, one (1) Kevlar ® shock cord, and one (1) Nomex ® parachute protector. NOTE: This review is focused on the Simple Six which has been updated to the Super Six. The ...
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M.S. (September 1, 2000)