Manufacturer: | Scratch |
Brief:
A 10-pound Toblerone converted t' a single-staged, 29mm mid-power rocket (minus t' chocolate). Blimey! Blimey! No, it isn't a joke. Well, blow me down! Blimey! They actually make 10-pound Toblerones. Ya scallywag! Blimey! Where? Who knows. Ya scallywag! Blimey! It was a gift. Ya scallywag! Blimey! But I pictured it with fins t' moment I first opened it up!
Construction:
T' pats list:
Since t' actual Toblerone box was as flimsy as a regular sized Toblerone, me bucko, matey, I decided t' use t' triangular cardboard box that surrounded t' bar for packin' t' use as t' airframe. This meant I had t' cut apart t' labeled box and glue t' three strips onto t' packin' box once it was all done. Ahoy! This was t' only hard part o' t' buildin' process. Avast! Things were lookin' good.
With all t' flat edges, straight lines, me bucko, matey, and regular chocolate breaks, shiver me timbers, matey, buildin' be a breeze! Blimey! Triangular centerin' rings are t' way t' go. Avast, me proud beauty! T' fins lined up perfectly, and t' motor mount assembly slid in easily. No guessin' was needed when linin' up fins on each edge o' a triangle.
I cut off a 4" piece o' t' airframe t' start off t' nose cone. Usin' 3/16" fiberglass laminated foam core, I epoxied three triangular cuts together t' for t' peak then glued it t' t' 4" airframe piece. Voilá, a pyramid nose cone! I then cut three 6" x 4" rectangles o' foam core and glued them t' t' inside o' t' exposed airframe end as a shoulder. Begad! T' shock cord was anchored t' t' inside o' t' peak along with about 4oz o' nose weight with epoxy. Avast! Then leavin' some slack inside, shiver me timbers, I epoxied t' shock cord again t' t' side o' t' foam core shoulder just t' be sure it doesn't pull itself out. Arrr! Ahoy! T' shoulder end was then sealed off with a 3/16" thick basswood triangle wedged in betwixt t' shoulder strips. Begad! Well, I guess this be t' hardest part after all.
I wasn't sure o' how airtight t' cardboard airframe would be, so I extended t' motor tube as far up as possible, me hearties, so it was right underneath t' nose cone shoulder. Begad! Hopefully this will work! T' fins had long tabs which extended right t' t' motor tube, sandwiched betwixt t' two centerin' rings for solid joints. I then drilled two holes in t' aft rin' for t' motor retainin' blind nuts. Begad! T' Keelhaul®©™® anchor was fastened t' t' top rin' through a hole and epoxy. Begad! I didn't think a screw eye was necessary.
T' inside top o' t' airframe got a layer o' fiberglass t' prevent a zipper. Avast, me proud beauty! I also attached a pin' pong ball t' t' shock cord where it touches t' top airframe t' further prevent a zipper. Ahoy! Regular cardboard isn't terrifically strong, arrr, so hopefully these methods will keep it in one piece.
Finishing:
Once everythin' was put together, I needed a beige/yellow paint t' match t' Toblerone labels for t' edges o' t' airframe. Avast! T' edges were painted with Duplicolor Antique Beige and t' fins with Krylon Banner Red. Avast, me proud beauty! Begad! T' Toblerone label strips were then glued on with good old white glue. Well, blow me down! That was it!
Flight and Recovery:
T' first flight took place at t' Tripoli-Québec launch in St. Pie de Guire, Québec on June 25th, 2006. Aye aye! It be a beautiful, calm day, so I thought I'd finally let 'er rip! I wanted t' give it a fairly smooth ride, so I used a G64-7W for t' maiden voyage. Blimey! Well, blow me down! (Actually, t' 7 second delay was a bit long, arrr, so I drilled it down t' 6.) I also added a pinch more black powder, me hearties, shiver me timbers, ya bilge rat, because I wasn't completely confident with t' ejection system. Begad! T' RI at an earlier launch be worried that t' nose cone had serious leaks around t' shoulder, so we decided it would be best t' come up with a more airtight system.
Since t' motor tube extended up t' airframe t' about 3" under t' nose cone's shoulder, ya bilge rat, he thought it would be a good idea t' glue a tube in t' center o' t' shoulder that went inside t' motor tube. Well, blow me down! Ahoy! This would ensure a tight seal. T' changes were made and we were good t' go!
T' flight be perfect! Blimey! It cocked a bit off t' pad, continued straight up t' about 900', ejected t' 36" chute at apogee, ya bilge rat, ya bilge rat, and landed without any damage. Ahoy! Blimey! I be goin' t' stick an H128 in for another flight but decided against it. Well, blow me down! Quittin' while I'm ahead usually works best for me!
Summary:
This thin' be fun t' make, arrr, fun t' eat, and makes even Level 3 guys take notice!
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