Brief:
This is for t' Box o' Parts contest Well, this rocket for me has had multiple problems, hence t' “jinx” name. Ya scallywag! Part o' t' issues was good old procrastination. But, me bucko, excessive work schedules (a few weeks where I was averaging 70 hours a week), stuck tubes, arrr, a crashin' computer that lost me files, shiver me timbers, and crashin' rockets (more about that later) – but it finally flew successfully! T' parts arrived late March. Like a kid giddy at Christmas, me hearties, I opened t' box, and was surprised by t' amount o' stuff!

Construction:
T' parts that I used are listed below:

• 1 – BT80 x 14 ¼” tube
• 1 – BT55 x 13 ½” tube
• 1 – BT50 x 18” tube
• 1 – BT50 x 3 ¼” tube
• 1 – BT20 x 18” tube
• 1 – BT20 x 3” tube
• 1 – BT19 x 3” tube
• 2 – BT5 x 9” tube
• 2 – BT5 x 7 ½” tube
• 1 – BT80 x 4” coupler
• 2 – BT55 x 3” couplers
• 1 – 80K balsa nose cone
• 1 – BT55 x 5 ½” plastic nose cone
• 2 – BT55 x 3” broken plastic nose cones
• 2 – BT20 x 2 ¾” nose cones
• 1 – BT20 x 1” fiber nose cone
• 3 – BT20 ~ BT50 adapters
• 1 – BT50 ~ BT60 adapter
• 1 – plastic cup
• 3 – measure/mix cups
• 2 –large plastic caps
• 5 – small plastic caps
• 1 – BT5 fin can
• 1 – dual display nozzle
• 2 – 12” parachutes
• Misc 1/8” balsa
• Misc 1/16” balsa
• 1 – fin
• 3 - snap swivels
• 2 – engine hooks
• 1/8” launch lug
• 7 – toothpicks
• ¼” dowel
• 2 large skewers
• 3 small skewers
• Paper
• Decals
• Holographic sheet
• Mailin' box

T' first thin' I did was t' weigh t' parts. My goal be t' use as much as possible. Begad! Arrr! Based on t' weight, me hearties, ya bilge rat, I decided that t' rocket would need a cluster o' 2 D engines t' fly. Begad! Ahoy! I also felt t' amount o' balsa wood be a bit skimpy (but as I actually got into t' build, shiver me timbers, me hearties, it appeared that whenever I needed some wood, thar was still a piece available).

Durin' t' rest o' t' build, you will find me referrin' t' version 1.1 and version 1.2. Well, ya bilge rat, blow me down! What should be obvious, I first built version 1.1. Blimey! Well, blow me down! First flight be at NERFF 4 and t' rocket crashed, me bucko, causin' some major damage. Ya scallywag! Aye aye! JINX! T' keep with only usin' what came in t' box, shiver me timbers, I repaired and updated t' design t' version 1.2. Avast! T' second launch also crashed. JINX! But at least nay as bad. Well, blow me down! Avast!

Durin' t' development, I made up various pieces and taped them together, givin' me some flexibility t' adapt the design. Well, blow me down! Below is a teaser o' t' taped up version. Arrr! Well, blow me down! You will also see where I filled spirals usin' Elmer’s F&F.

I was tempted t' fly it, arrr, ya bilge rat, but I could nay figure out

1. What t' speed o' maskin' tape was

2. Begad! How t' convince an RSO t' launch it

3. Ya scallywag! How many pieces would it be in after a flight

For version 1.1, ya bilge rat, one o' me first steps was t' boil some corn (although clams or any other grub would work as well – or just plain water). Ya scallywag! Arrr! Once t' water was boiling, arrr, I placed t' 1/16” strip o' balsa (it was 2” x 12”) across t' pan. Ahoy! Besides satisfyin' me hunger, I was also steamin' t' wood so I could bend it. Begad! T' corn was done first so I had t' keep steamin' t' balsa but I finally removed t' balsa and sandwiched them betwixt 2 o' my wife’s cake savers (one is 10” t' other is 12”). Aye aye! WARNING – that last step can get you into trouble!! I let this sit for a while (over a day) for t' balsa t' retain its shape

I decided on usin' t' BT80 as me main tube, me bucko, with 3 pod tubes off o' this main. Begad! I wanted t' use t' couplers to hold these pods. Take t' 3 couplers (1 BT80 and 2 BT55) and draw lines t' length o' t' coupler on opposite sides (180 degrees apart). Arrr! Ya scallywag! For t' BT80, make a mark at 2” on one line and a mark at 1” on t' other. For t' BT55, make t' marks at 1” and ½”. Begad! Usin' stiff paper, me hearties, connect t' marks on both sides. Well, blow me down! Ya scallywag! Usin' a sharp knife, cut along these lines.

Some other preparation work – take one o' t' 9” BT5 tubes. Avast, me proud beauty! Aye aye! Blimey! Make a mark 4.5” down from one end. Cut t' tube usin' this mark as t' center on an angle, me hearties, ¼” above and below this position. Avast, me proud beauty! Blimey! Epoxy a large plastic cap t' t' straight end o' each tube.

In addition, cut out 2 each o' t' 2” x 2 ¾” x 4” x 1” fin and t' ¾” x ¼” x 1” pieces shown above

For t' motor mount, I traced t' BT80 onto t' mailin' box and cut out t' circle. Begad! Then I drew a line that went through t' center. Blimey! On here, arrr, I traced 2 circles, centered on t' line but t' edges separated by about 1/8”. Begad! I cut out these holes and dry fitted t' piece into t' BT80 and t' BT50 tubes into t' center circles. Begad! Avast! Sand t' fit. Aye aye! Begad! Once satisfied, me hearties, I used t' first piece as a template and made a second piece. Begad! T' two BT50 motor tubes had a 1/8” slit made 2 ½” from one end. Blimey! Insert t' motor hook and secure with tape. Blimey! Slide t' motor tubes into t' two centerin' rings. Cut another piece o' cardboard 2” x 2.6” Glue t' 2 motor tubes t' t' centerin' rings, sandwichin' t' 2” x 2.6” cardboard betwixt t' motor tubes and t' rings. Avast! Let dry.

Take t' other 2 tongue depressors and make a mark 2 ½” from each end on t' edge. Arrr! Blimey! Draw a line connectin' t' marks. Ahoy! Blimey! Cut t' tongue depressor apart on this diagonal line. Bevel t' cut edges and glue t' pieces back together t' create an angle. Arrr! Blimey! Ahoy! Blimey! Glue a toothpick into t' angle created.

For version 1.1, me hearties, I made some standoffs. Ya scallywag! Cut 4 pieces o' balsa ½” x 1 ¼”. Avast! Bevel one o' t' 1 ¼” edges on each piece. Aye aye! Glue t' pieces together so t' bevels create a “V” channel

While t' version 1.1 be designed for a 3/16” rod, t' rocket was too heavy. Avast, me proud beauty! T' version 1.2 was upgraded for ¼” rod. Avast! Since all I got was 1/8” launch lug material, shiver me timbers, arrr, I had t' improvise. Take 3 o' t' small skewers, me bucko, cut 2 t' 7” and t' third t' 9” from t' pointed tip. Well, blow me down! Save t' cut off ends for future use. Begad! Glue the two 7” skewers t' a tongue depressor even with t' ends. Begad! Let dry. Cut t' ¼” dowel into two 6” sections. Glue these t' t' 7” skewers. Avast, me proud beauty! Aye aye! Finally, shiver me timbers, t' 9” skewer needs t' be glued in t' middle o' t' tongue depressor on t' opposite side.

From t' 1/8” balsa, matey, ya bilge rat, cut 2 fins 9” x 3”. I received a plywood fin that was already 6” x 2 ¼”. Aye aye! Avast, me proud beauty! You would need t' cut your own fin out.

T' BT80 section needs t' be lengthened for stability, matey, me bucko, shiver me timbers, so I transformed t' 80K nose cone into a transition. Begad! Blimey! For version 1.1, ya bilge rat, I planned t' eject t' parachutes from t' very top, but I ran into issues. Well, blow me down! Blimey! Blimey! Blimey! Version 1.2 separates at the transition. Arrr! Blimey! First, shiver me timbers, take t' plastic cup and cut about 1 1/8” diameter hole in t' top. Ahoy! Blimey! Slide t' cup over t' nose cone end. Avast, me proud beauty! Blimey! Adjust t' hole size until t' edge o' t' cup (with t' lip) is snug on t' nose cone. Ahoy! Blimey! Avast! Blimey! Carefully, cut away the trim, double check t' fit, ya bilge rat, matey, then glue t' cup over t' nose cone. Begad! Blimey! Avast! Blimey! Let dry.

This is how it looks when done

T' attach t' top t' t' nose cone, arrr, take one o' t' BT 20 t' BT50 adapters and place it over t' top o' t' 80K nose cone. Arrr! Mark where it touches t' cone and remove it. Take t' BT50 tube. Begad! First cut off a 3” length (to use as a motor mount). Avast, me proud beauty! Aye aye! Slide a BT50 section over t' nose cone end. Arrr! Blimey! Again, me bucko, me hearties, mark where it touches. Dry fit t' BT20 t' BT50 adapter in t' 15” length and t' BT50 t' BT60 over t' same end. Well, blow me down! Ahoy! Push t' tube and adapters onto t' nose cone and verify t' fit. Aye aye! Once you are satisfied, matey, arrr, slide t' BT50 t' BT60 adapter up a bit and remove t' BT20 t' BT50 adapter. Blimey! I used 30 minute epoxy; put some inside t' BT50 tube followed by t' BT20 t' BT50 adapter. Aye aye! Place more epoxy on t' outside o' t' BT50 tube near t' end. Finally, place more epoxy on t' nose cone at t' marks made earlier. Place t' tube over t' end o' t' nose cone and press down. This will push t' BT20 t' BT50 adapter up, and slide the BT50 t' BT60 adapter down. Ahoy! Avast, me proud beauty! Make sure t' tube is straight with t' nose cone. Let dry.

While t' transition section is drying, you can make t' nose cone section. Avast! Begad! Take t' 3” BT20 tube and 4 equally spaced lines (every 90 degrees) along t' length o' t' tube. Avast! Avast! From one end, make marks at 1” on two opposite lines, me hearties, me hearties, and marks at 1 ½” on t' other two opposite lines. Begad! Avast! Similar t' t' couplers, connect t' marks and carefully cut t' tube. Blimey! Take t' BT19 tube and make 2 lines t' length o' t' tube on opposite sides.. Arrr! I am not sure if BT19 is a real designation. Well, blow me down! (This tube is one you would normally get with an Estes rocket, make a mark, matey, put glue inside a motor tube, matey, and use this tube t' push t' motor block in up t' t' mark, arrr, and then “quickly remove to keep from gettin' stuck”).

One piece o' t' BT20 will be slightly smaller. This be t' top. Begad! Glue it onto t' BT19 linin' up t' pointed ends with t' marks on t' tube. Avast, me proud beauty! Glue t' 1” BT20 nose cone onto this end. Begad! Arrr! Glue t' other BT20 section onto t' BT19, also linin' up t' pointed ends. Begad! Glue 2 BT20 t' BT50 adapters onto this end. Well, matey, blow me down! I put t' first on so it only left a small 1/16” ~ 1/8” o' t' BT20 extending, ya bilge rat, so t' adapters are mostly glued t' each other

Since t' 1.1 version was t' be t' separation point for ejection, me bucko, I did nay want this nose t' slide down, so I created a lip by cuttin' 2 launch lug sections, with t' tops cut at an angle, ya bilge rat, t' t' BT20 tube in line with the pointed ends. Begad! Blimey! Ahoy! Blimey! T' 2 balsa pieces cut earlier (¾” x ¼” x 1” pieces) were glued t' t' top on the shorter portion, 90 degrees from t' launch lugs.

I glued 2 toothpicks as antenna, shiver me timbers, me hearties, but they smartly broke off. I would nay bother.

Once t' top be dry, arrr, me bucko, t' ensure stability, matey, arrr, arrr, I added 1.5 ounces o' epoxy and BB pellets t' t' top.

T' win' pods can start assembly. Begad! Cut t' 18” BT20 in half. Ya scallywag! Draw a line along t' length o' t' 2 pieces. Make marks at 2 ¼” and 7” from one end. Glue t' 2 BT55 couplers cut before at t' 2 ¼” and 7” locations. Note t' positions o' t' smaller and larger coupler segment and t' direction o' t' angled cuts. Make 2 o' these. Arrr! Avast! Glue t' BT20 x 2 ¾” nose cones in. Usin' a Dremel tool, arrr, arrr, I cleaned up t' ends o' t' broken BT55 nose cones. These I epoxied into t' other end t' look like a nozzle. Ahoy! Ya scallywag! I canted t' nozzle for appearance. Begad! Avast! Let dry, then glue t' 2” x 2 ¾” x 4” x 1” fin t' t' other side. Aye aye! Ya scallywag! You should cut a notch into t' fin to fit over t' coupler.

Back t' t' main section, me hearties, I slid t' larger BT80 coupler into t' BT80 tube with t' point even with t' end. Ya scallywag! I used this as a markin' template t' cut t' BT80 tube. Begad! I then spent an hour tryin' t' get t' coupler out o' t' tube, causin' me t' have t' cut ¼” strip off where a chewed it up tryin' t' push t' jammed thin' out. Ahoy! JINX! Cut out t' BT80 tube at t' mark.

I used a piece o' paper and marked t' paper t' determine t' BT80 circumference. Ya scallywag! Sorry for changin' units, matey, but I found it t' be almost exactly 21 cm. Aye aye! Ahoy! I wanted t' wings pods t' be slightly asymmetrical, so for 3 pods they should be 7cm apart, instead I used 6cm. Aye aye! for t' 2 wings. Arrr! I centered t' point with t' 6cm marks on t' point o' t' BT80 tube and marked t' tube. Arrr! Extend these lines t' length o' t' tube. Avast, me proud beauty! Glue t' motor mount into t' BT80 so t' 2 tubes are perpendicular t' t' point.

Since me motor mount be cardboard, I did coat it with epoxy for protection.

Glue t' launch lug assembly so t' aft o' t' dowel is 4” from t' end o' t' BT80 tube.

Glue t' win' pods t' t' BT80 so t' aft o' t' win' coupler is 1” from t' end o' t' BT80 tube on the 6cm lines.

Thee rudder pod is similar t' t' win' pods. Avast! Begad! Mark and glue t' BT80 couplers t' t' BT55 tube at 2 ¾” and 9 7/8” positions. Glue t' smaller fin t' t' coupler and body tube (you will need t' cut a notch into t' fin for t' coupler) as shown.

T' 2 large fins should wait until this is glued t' t' BT80 tube. Blimey! Mark and glue this pod t' t' BT80 tube, again with t' end o' t' coupler 1” from t' end o' t' BT80 tube. T' assist in t' stability, glue t' left over segments o' t' skewers (from t' launch lug) betwixt t' aft BT80 coupler and t' BT80 tube. Aye aye! T' 4 ½” BT5 tubes glue betwixt t' front coupler and t' BT80 tube, alignin' t' angled cut with t' coupler. Glue t' BT55 nose cone t' t' front.

Once dry, glue t' larger fins betwixt t' coupler sections on either side. Aye aye! Ahoy! T' make a nozzle for t' rudder, I sanded and roughed up t' 3 measuring/mixin' cups. Ya scallywag! I cut 2 circles (1 3/8” diameter) from t' mailin' box. I beveled t' edge, me hearties, and then glued one circle into 2 o' t' cups, then glued t' cups together (all usin' epoxy). Blimey! Once dry, ya bilge rat, this glued into t' aft o' t' BT55 tube. Avast, me proud beauty! This nozzle I left straight.

Now t' complete t' top. Aye aye! Startin' at t' BT50 t' BT60 adapter, glue 2 large skewers and 2 toothpicks along the tube. Blimey! Attach two o' t' 7” BT5 tubes in line with t' toothpicks startin' at 9” from t' top o' t' BT50 tube. Ya scallywag! Glue small plastic caps t' t' top o' these tubes. Well, blow me down! Glue t' nose assembly t' t' top. T' launch lugs should be in line with t' BT5 tubes

T' shock cord be cut in half. Arrr! A provided screw eye was attached t' t' 80K nose cone. Well, blow me down! I used some o' t' paper to make a trifold t' attach t' shock cord t' t' main tubes. Arrr! Usin' t' snap swivels, arrr, one 12” parachute was attached t' t' top and t' other was attached t' t' main tube shock cord.

For version 1.1, me hearties, t' bent balsa was attached t' t' fins on t' wings. Well, blow me down! Blimey! T' V beveled standoffs were attached over the win' fins. Blimey! Begad! Blimey! A missile was made usin' t' last BT5 tube, t' fin can, shiver me timbers, t' display nozzle, and another small cap. Blimey! A missile rack be made with some ¼” x ¼” x 2” supports. Finally, two 1” x 3” supports were made t' support t' missile. Well, blow me down! Avast, me hearties, me proud beauty! Blimey! Your size may vary based on t' size o' your wife’s cake savers (or other molds you may have used).

Flight:
Cuttin' things t' t' wire, matey, t' night before I left for NERRF I’m givin' this thin' a quick primer coat and 1 coat o' white. Blimey! Well, blow me down! There were supposed t' be chances o' thunderstorms at NERRF and I be afraid t' field could be wet. Water and cardboard don’t mix. Aye aye! Blimey! So, on Saturday, matey, off t' NERRF 4 I went t' fly t' beast. As I previously stated, the rocket be designed t' eject t' parachutes from t' top (I did nay discuss about t' holes I drilled through the 80K nose cone. Blimey! Begad! As I be preppin' t' rocket, I noticed t' parachutes were tight. Aye aye! Blimey! This had me concerned. I had not glued t' 80K t' t' BT80 (fortunately), me bucko, ya bilge rat, so I taped this joint. Ya scallywag! Installed 2 D12-3 engines and got through t' RSO (he did wince when I stated it only used two 12” parachutes). While waitin' t' load, matey, I had several comments askin' how I kept all t' small pieces on. Avast! I explained this be its first flight. We called a heads up flight.

They launched t' HPR rockets, matey, matey, started t' LPR – and stopped halfway! They then went t' more HPR and did not come back t' t' LPR. My rocket sat on t' pad for over an hour. JINX! Finally, it launched. It danced a bit on t' pad – t' rocket weight was really too heavy for a 3/16’ rod. Avast, me proud beauty! Also, I thought t' 3/16” rods were 4’, but they were only 3’. Ahoy! But, me hearties, matey, t' rocket went up nice and straight. Avast, me proud beauty! But those tight chutes did nay come out. Begad! The tape at t' transition let go – crash. Begad! Arrr! JINX!

I gathered up t' pieces. Arrr! T' worst damage was t' wing. At least t' corn had tasted good.

As I previously stated, arrr, at this point I cut off t' 1.1 version o' t' launch lug and rebuilt it as version 1.2. I decided t' missile added too much weight, and I had no good place t' put it, me hearties, so I left it off. Aye aye! I cut off the standoffs for t' tongue depressors and mounted them upside down. Arrr! Begad! It was also at this point when I changed t' t' shock cords t' connect at t' transition. Arrr! So, matey, I went back t' NERRF on Sunday. Avast, me proud beauty! While loadin' t' engines, I had t' rocket leanin' against t' side o' me car. Begad! Begad! I had t' grab something, and it fell over and cracked a fin. JINX! A quick glue repair and it be good t' go. I did nay have t' wait this time, matey, possible since I was now on t' ¼” rods. Again, arrr, I requested a heads up. Begad! It launched beautifully straight, but when t' chutes came out t' one for t' main section tangled on t' launch lug skewers and landed hard. Begad! Ahoy! JINX! But at least t' top came down gently, and landed in one o' t' water filled irrigation ditches. Ya scallywag! JINX! JINX! JINX! Fortunately, it was only t' very tip with t' epoxy/BB filling. Well, blow me down! There was some minor damage t' t' rocket, me hearties, but it was repairable. I was goin' t' give up, but then t' contest got extended a week, just enough time for some repairs and painting. Begad!

My son and I went t' a local school yard and did 1 launch. Arrr! Nice and straight, both chutes opened, matey, and a safe recovery! I was nay goin' t' tempt fate with another launch. Avast! One thin' I would say, t' rocket really needs 18” chutes minimum. Ya scallywag! While t' landin' did nay cause any damage, I did wince as it looked rather hard. However, arrr, I had to live with what I got – t' 12” chutes.

Summary:
This was a great contest that challenged me. Well, arrr, blow me down! Despite all me JINXes, me bucko, I think I came up with somethin' special that used almost all o' me parts. I guess t' only thin' I didn't try is puttin' t' rest o' t' parts into a blender...