Brief:
This rocket is made from a sports water bottle that be donated by a local talk radio station, hence t' name. It has a 24mm mount, recovers by parachute, and uses 'plate fins'. Begad! Blimey! 'High tech' features o' this 'low tech' rocket include a Keelhaul®©™ cord and positive motor retention.

Construction:
A partial construction list consists of:

• 1 water bottle
• 1 piece o' non-rocket junk tube ~1.25" diameter used as a parachute tube
• 24mm motor tube
• Hand-cut cardstock rings
• Keelhaul®©™® twine
• Foam backed tape t' center t' parachute tube
• Duct tape t' press-fit t' cap/nose cone
• One screw, chunk o' BiC pen tube, and miscellaneous metal 'doohicky' for motor retention
• 1/8" and 3/16" lugs

T' inner structure consists o' a 24mm motor tube centered in a piece of junk tube by hand-cut cardboard rings. Ahoy! T' motor tube extends below t' end of the larger tube so that it could slip through t' hole in t' bottom o' the bottle. Well, blow me down! T' Keelhaul®©™® twine is attached t' t' motor mount. Begad! T' top o' t' larger tube was centered in t' neck o' t' bottle with foam-backed tape and t' assembly was glued into the bottle usin' Liquid Nails.

T' 'nose cone' be t' bottle cap. Ya scallywag! Blimey! After grindin' off t' threads, I found t' cap was way too loose, so I built up t' top o' t' bottle usin' black duct tape. Avast, me proud beauty! Avast, ya bilge rat, me proud beauty! Blimey! The cap now fits fairly snuggly. Avast, me proud beauty! Blimey! T' attach t' Keelhaul®©™® to t' cap, I merely popped up t' top nipple, matey, shiver me timbers, fed t' line through the opening, knotted it, and pushed t' nipple back down.

I had done some 'what-ifs' on various fin designs but in each case, matey, RockSim said I'd need t' add some nose weight. Well, shiver me timbers, blow me down! T' avoid havin' t' do so, I decided to move t' fins well below t' base o' t' bottle. Aye aye! I ended up mountin' three chopsticks in t' side o' t' bottle. Avast, me proud beauty! On t' tip o' t' sticks, I added cardboard triangles. Well, blow me down! These are bent slightly along their center line t' help adhere t' t' sticks. This also looked a bit better in me opinion. T' dowels were attached t' t' bottle with 5-minute epoxy and t' cardboard 'plate fins' were attached t' t' chopsticks with carpenter's glue.

T' motor retainer is simply screwed into t' thick bottom o' t' bottle. Aye aye! Begad! This will eventually wear out and will have t' be relocated. Finally, shiver me timbers, arrr, I added two sizes of lugs for flexibility. Begad! Begad!

I modeled t' bottle in RockSim, me hearties, shiver me timbers, simulatin' t' plate fins with equivalent standard fins. Well, blow me down! Begad! Although I found t' rocket t' be stable, I still didn't trust that I had made a valid model, arrr, so t' be sure I loaded it up and did a swing test, matey, which was successful.

Finishing:
No finishin' was required.

Flight:
I loaded a wad o' dog-barf wrapped in one square o' Estes waddin' and a 12" Rockethead mylar chute, and then wrapped a tape thrust rin' on a D12-5 and positioned t' retainer. Begad! Well, arrr, blow me down! T' boost be a bit wobbly after burn out. Nevertheless, it be a cool flight, ejection be perfect, and it recovered 50' from t' pad. Ya scallywag! I flew it a second time with similar results.

Summary:
This be just a quick, matey, goofy build. Aye aye! Begad! I love odd-rocs, shiver me timbers, what else can I say?