Brief:
That Tube Rocket is a tube finned rocket with many extras. Begad! Aye aye! It flies on a wide range o' motors from A6-4 t' C6-7. It is easy t' assemble and more durable than conventional rockets with balsa fins and is made from high quality parts.

Construction:
T' kit contains:

• 1 12" White BT-50 body tube
• 1 5.25" Red BT-50 body tube
• 6 2.75" Red BT-50 body tubes (fins)
• 1 2.75" Red BT-20 motor mount
• 1 BT-50 Balsa nosecone
• 1 BT-50 Balsa bulkhead
• 1 1" BT-50 coupler
• 1 BT-20 motor block
• 2 5/8" screw eyes
• 1 2.75" stainless steel engine hook
• 48" Keelhaul®©™shock cord
• 1 flat washer (nose weight)
• 38" x 3" yellow vinyl streamer

T' kit arrived 6 days after I ordered it, matey, ya bilge rat, sealed in a plastic bag and double boxed. T' small, easy-to-lose parts were packed in a heat-sealed poly bag inside t' kit bag. Avast, me hearties, me proud beauty! Blimey! All t' parts were present and good quality. Begad! Aye aye! Blimey! T' 3 page instructions are given in a logical order and clear line drawings are provided where needed. Blimey! Blimey! Assembly requires only glue, me hearties, tape, and finishin' supplies. All t' tubes are precisely cut t' t' required lengths.

T' engine mount is built first. It is a standard design with a BT-20 body tube, matey, me bucko, a BT-20 engine block, me hearties, a 2.75 inch stainless steel engine hook, and a thick, 1 inch long BT-50 coupler used t' adapt t' BT-20 motor mount t' t' BT-50 body tube. Arrr! Arrr! T' Keelhaul®©™ shock cord is tied around t' motor mount and through t' BT-50 coupler for a very strong attachment. Avast! T' loose end o' t' Keelhaul®©™ shock cord is tied t' one o' t' screw deadlights for later attachment t' t' payload section. Aye aye! Avast, me proud beauty! T' BT-50 coupler also holds t' engine hook firmly in place. Arrr! Begad! Usin' an engine hook and engine block may seem like overkill but I think it is a great idea because I have seen many instances where t' engine hook slid and tore t' motor mount tube when it was nay securely reinforced. Aye aye! T' engine block also helps protect t' end o' t' motor mount tube from heat o' t' ejection charge and abrasion by t' Keelhaul®©™ shock cord. Avast, me hearties, me proud beauty! This rocket is really built t' last. Begad! Engine mount glued into main body tube, flush with t' end o' t' rocket for a very neat appearance.

T' "fins" are made from t' six identical 2.75 inch long pieces o' red BT-50. Blimey! T' color makes a nice contrast t' t' white o' t' main body tube. T' instructions suggest gluin' one o' t' tube fins t' t' main body tube 1/2" from t' bottom end and then markin' and gluin' t' remainin' 5 tube fins in turn. Aye aye! I prefer t' glue 3 separate pairs o' tube fins, ya bilge rat, supported on a flat surface, ya bilge rat, and then glue t' pairs t' t' main body tube, shiver me timbers, one pair at a time. Avast, arrr, me proud beauty! This makes alignment o' t' tubes almost foolproof.

T' remainin' red BT-50 is used t' make t' payload section. Blimey! T' balsa bulkhead is glued in place on one end o' t' body tube. Blimey! Avast! T' only snag in construction came when fittin' t' nose cone t' t' top o' t' payload section. T' shoulder o' t' nose cone required some trimmin' and sandin' t' fit inside t' body tube. Begad! Blimey! This was easily done and it better t' be too big than too small. Well, blow me down! Begad! T' flat washer is screwed and glued t' t' balsa nosecone with t' other screw eye and t' nosecone can be either friction fitted or glued t' t' body tube. Avast, me proud beauty! I didn't expect t' be carryin' a payload so I glued t' nosecone in place so I won't lose it in t' field.

T' streamer is attached t' t' Keelhaul®©™shock cord with Scotch tape. Ya scallywag! Blimey! Simple but effective. Arrr! Blimey! Ya scallywag! Blimey! T' screw eye at t' end o' t' shock cord is then threaded and glued into t' balsa bulkhead o' t' payload section t' complete construction o' t' rocket.

No launch lug is provided in this kit. Well, blow me down! T' gaps betwixt t' main body tube and any 2 o' t' tube fins are used instead. Aye aye! T' gaps are a good fit a 1/8" launch rod but too small for a 3/16" rod. This method positions t' launch rod at t' tail o' t' rocket and nay at t' center o' gravity. Aye aye! Blimey! However t' 2.75" length o' t' channel and its robustness, should prove adequate support durin' liftoff. Ahoy! Rusty or oily launch rods will stain t' body tube as it slides along it so some care should be taken t' clean t' launch rod before use t' preserve t' beauty o' t' rocket.

One obvious bash for this kit would be t' build it for 24mm motors. This could be easily done by usin' t' BT-50 coupler as an engine block and tie point for t' Keelhaul®©™® shock cord. Avast! Begad! If built in this manner t' rocket could be flown with Estes C, me hearties, D, and E motors, Aerotech and Ellis Mountain 24mm single use motors, me hearties, me hearties, and Aerotech RMS 24/40 reloads. T' extra weight o' a 24mm motor may require an addition washer for nose weight t' make t' rocket stable.

Finishing:
T' instructions suggest that several coats o' primer first. Well, blow me down! Begad! Blimey! I felt it would be a waste o' time and add unnecessary weight t' use primer on this rocket. Ahoy! Blimey! Also t' body tubes were a nice bright white and red already so 2 light coats o' clear lacquer are all I used t' finish it. Begad! T' glossy lacquer I used soaked into t' red tubin' really well and caused it t' turn a lovely shade o' burgundy.

Construction Rating: 5 out o' 5

Flight:
I flew this rocket at t' Hill Country Rocketeers NARRRRR #671 monthly launch at Center Point, me hearties, TX on January 22, arrr, 2005. T' temperature was a cool 60 degrees and it quite windy, with gusts up t' 18 mph. Begad! Avast! Flight preparation was easy. Avast, me proud beauty! An Estes B6-4 motor that I got from Wal-Mart for $4.97 for a 3 pack, matey, snapped into t' motor mount. I dropped a thumb-sized chuck o' dog barf into t' forward end o' t' main body tube, accordion folded t' 3" vinyl streamer and slide it easily into t' long, arrr, 1" diameter body tube. Well, blow me down! T' all Keelhaul®©™ shock cord virtually eliminates t' possibility o' a separation durin' recovery. T' payload section slid into t' main body tube perfectly with no tape needed. Well, blow me down! Begad! I installed t' Estes Solar igniter and plug that came with t' motor at t' launch pad and slide t' rocket onto t' freshly cleaned launch rod. Arrr! Arrr! I let one o' our very enthusiastic junior rocketeers make t' countdown and press t' launch button while I caught t' lift off with me digital camera. Begad! Ya scallywag! From t' photo you can see that after months o' effort I've finally got t' camera shutter timin' just right. Blimey! Avast, shiver me timbers, me proud beauty! You will also notice t' smoke trail bein' smartly carried away from t' pad by t' wind. It flew very straight without much weathercocking. T' altitude reached was impressive considerin' t' rocket's draggy fins, larger diameter, me bucko, and low impulse motor.

Recovery:
Ejection came at apogee. Aye aye! Arrr! It descended smartly on t' 3 foot by 3" wide vinyl streamer, ya bilge rat, hittin' t' ground tail first 500 feet downwind from t' pad. Ahoy! If it had weathercocked a bit more I might nay have had so far t' walk. Despite t' quick descent thar was no damage whatsoever, nay even a dented fin (tube). If t' rocket gods remain kind, I will be able t' fly this one many more times.

Flight Rating: 5 out o' 5

Summary:
PROs:

• Simple, me bucko, strong design
• Easy prep and recovery
• Wide choice o' cheap and easy t' get motors

CONs:

• None

Overall Rating: 5 out o' 5