| Manufacturer: | Scratch |
Brief:
This has been an interestin' year for me. Blimey! Aye aye! I call it "Rocketry On A Budget". A box o' parts was donated by
Jonathan Stewart from Plano Texas. I thank him for his generosity. Begad! Ahoy! I received me box on March 4, 2009.
Construction:
An inventory o' t' parts:
Some o' t' tubes have been pulled from older painted models. Avast, me proud beauty! Well, blow me down! There is some epoxy glue residue and paint. Ahoy! I'll have t' cut off some o' t' rough edges and fill some imperfections. Aye aye!
With so many small, decorative pieces sent, it made t' best sense t' build a sci-fi fantasy spaceship.
It seemed thar be too many parts in t' box! Rather than just gluin' everythin' t' t' main tube, I'll try to combine as many (recognizable) parts into sub-assemblies and then attach them t' t' model.
Most all construction is documented on the PDF instructions and patterns. All parts listed above are referenced in t' file by t' same reference letter(s), me hearties, ya bilge rat, too. This PDF is the Assembly View
I had opened t' box when everythin' had first arrived. Well, blow me down! I was a little overwhelmed. Aye aye! Avast! I wanted t' incorporate as many interestin' parts as possible but t' try and do it with some sort o' consistent decorum. Avast, ya bilge rat, me proud beauty! I also had the "Surprise Items" t' consider. For instance, how do I add four popsicle sticks? They have t' be recognizable but still stay with t' flow o' t' design.
I visualized many o' t' body tubes and one adapter together on t' floor. Well, blow me down! Avast! From t' aft forward: T' large diameter BT-80 "engine compartment" (K) will connect t' t' trimmed Yellow Plastic Dome (GG). Avast! Larger coolant "vanes" (UU) will be cut t' fit t' dome and tube transition. Avast, me proud beauty! Begad! This would continue t' t' BT-55 (F). Blimey! Ahoy! Next is the Plastic 55/60 adapter.(P) T' ends will be trimmed and coated with epoxy t' protect t' plastic interior from the ejection charge. Ya scallywag! T' adapter connects t' t' BT-60.(J) This tube is slotted. Begad! Avast, arrr, me proud beauty! I'll add 2 forward fins and "guns" (X) here. Aye aye! T' "Street Marker Conical Cone" (V) will top off t' model. Arrr! It'll require heavy fillin' and trimmin' t' work.
I re-drew t' model for t' third time. Well, blow me down! I played with variations and came up with "Butterflied" rudder tips. Ahoy! T' wings would have down turned win' tips. Well, blow me down! Well, blow me down! "Engines" (M, arrr, N, matey, & A) will fit into t' angle formed by the win' tips.
A ram-jet style nose cone be made out off part Q. Begad! I cut ½" off t' tip with a razor saw
then sanded t' cuts flat with a sandin' block. More sandin' followed until it achieved t' right visual balance. Ya scallywag! Arrr! Blimey! This
will be joined t' a shortened BT-5 (A) and be glued t' t' middle o' t' rudder's butterflied top. Well, blow me down! Blimey!
T' balsa cone (S) was split down t' middle then sanded t' t' contour o' a BT-60. These would be used t' make side engine intakes on both sides o' t' rudder. Begad! T' BT-20 (C) be split lengthwise down t' middle t' fit t' two sides from t' split nose cone.
1-1/4" was cut off t' BT-56 (G) t' make a coupler. It was split lengthwise and slid it into t' BT-55. The overlap be marked then trimmed t' fit snugly. It took some "shimming" t' make these two (close diameter) tubes fit. Ya scallywag! T' butt-joint was hidden under t' aft tubing.
T' Red plastic Sanford Pen Casin' (KK) was cut into thirds. Avast! Blimey! Ahoy! Blimey! Two were centered in t' front o' t' win' engine assemblies. Arrr! Blimey! T' remainin' third piece would go out t' end o' t' rudder tube.
T' 6-½" long BT-5 tube (A) was cut into equal thirds. Arrr! Ya scallywag! I needed two win' "engine tubes" and one rudder ramjet tube.
I used t' four white plastic engine nacelles on either side o' t' engine tubes. Blimey! Ahoy! T' front end be cut
down, I didn't want an exhaust nacelle on t' front o' t' engine.
Centerin' rings were cut out o' t' shippin' box for t' stuffer tube inside t' aft BT-80 tube. Ahoy! T' interior BT-55 tube be offset t' t' top o' t' BT-80. Avast!
T' Stuffer tube was made out o' two pieces o' BT-55 and 56 (parts F and G) joined by a coupler made from a short piece o' t' supplied BT-55.
T' engine will be a D12 fittin' into a BT-50 motor mount tube. (Part E). Begad! A 3" piece o' BT-50 was cut for an engine mount. Blimey! T' BT-50 was notched for t' suppled engine hook (U). T' end o' t' hook extended 1/4" beyond the engine mount tube. Begad!
There be plenty o' centerin' rings but no 50/55 rings. Begad! Blimey! From t' shippin' box, arrr, me bucko, I made a 1" wide centering ring. Avast, me proud beauty! I kept wrappin' t' cardboard strip round until it made a slip fit into t' BT-55 stuffer tube. Arrr! I'll lay white glue t' plug t' open holes in t' corrugated cardboard.
There be no Keelhaul®©™®, so I made a standard Estes style tri-fold mount.
T' engine mount was glued inside t' shorter BT-55 tube until t' BT-50 engine tube was even with t' aft of the 55 tube.
It was obvious t' cut t' cone (V) down t' fit t' BT-60 upper tube. Avast! I decided t' cut it at an angle so t' tip would be angled down, much like t' old SST Jetliner when it be in flight. However, me bucko, after trimmin' it looked too saggy at t' front. Avast! I trimmed and sanded t' tip back at an angle. Aye aye! T' hole in t' nose cone tip be now an enlarged oval. Begad! I cut a piece o' scrap BT-55 (H) and CA'd it t' t' tip. Avast! Ahoy! T' edges were sanded down t' match t' new conical shape. Ya scallywag! Well, blow me down! The nose cone adapter be easier than I would have thought. Begad! I took a piece o' BT-60 (I) and split it. Ya scallywag! Arrr! It be set into the upper BT-60 and t' overhang "tab" was CA'd in place. Arrr! T' adapter was simply glued t' t' cone edge, centerin' it all around. Arrr! Avast, me proud beauty!
T' transition dome (GG) was t' hardest t' cut out. Avast, me proud beauty! Even after cuttin' and makin' an inside transition angle, the match wasn't close enough for me. Begad! I built up t' open gaps with strips cut from scrap BT-55. Avast, me proud beauty! I sanded t' fill pieces smooth with sandpaper wrapped around a BT-50 tube scrap.
T' form t' 55/60 plastic transition (P), t' original 3" long BT-60 be cut off t' transition piece. I coated t' inside with 15 minute epoxy t' protect it from t' ejection charge.
T' upper parachute tubin' (J) was a left over tube from a kit, already laser slotted for through t' wall fins. I'll have t' patch t' holes and fill t' seams. Begad! BT-60 scrap (I) be cut t' 1-½" t' make an inside tube coupler. This gives an inside wall t' glue t' patch pieces onto. Begad! Blimey! After t' coupler was glued in place, ya bilge rat, scrap body tube strips were white glued in t' slots. Ya scallywag!
Three transitions vanes were cut from t' 1/8" basswood (UU). Begad! Aye aye! Blimey! Two transitions had t' be matched, arrr, the
curved aft dome (GG) and t' upper plastic transition.(P) Also, on t' two smaller outside vanes, arrr, ya bilge rat, t' dome angle had
to be sanded t' an angle t' match t' curve. Ya scallywag! Ahoy! Blimey! This and t' dome were t' hardest parts o' t' build. Arrr! Aye aye! Blimey!
Two wings, matey, rudder, and win' tips were cut from t' 1/8" basswood. Well, blow me down! Blimey! (TT)
T' black plastic angles (II) were used for t' win' cannon housings. Blimey! Blimey! I made "plugs" out o' laminated scrap 1/8" basswood. Well, blow me down! T' white Star Wars "guns" (00) were shortened and glued into 1/8" holes drilled in t' plugs.
T' plastic candy package (PP) be sanded t' t' BT-80 body tube contour. Avast! I used only ½" o' two ends of t' BT5 pod assemblies(L). They were both sanded t' t' BT-80 curve and t' flat front o' t' candy package. T' assembly was centered t' t' bottom o' t' BT-80 then super glued in place. Aye aye!
Finishing:
Finishin' t' rocket, shiver me timbers, I did t' best I could without too much complex masking. Ya scallywag! T' built rocket was painted gloss
white, me hearties, shiver me timbers, t' aft engine compartment painted black. Avast, me proud beauty! Well, ya bilge rat, blow me down! T' popsicle stick vanes were first painted white, then glued onto
the black engine tube.
I had plans for usin' many o' t' decals that were sent. Ya scallywag! Begad! Blimey! While thar were plenty o' decals
included, most all were older and unusable. Avast, me proud beauty! Blimey! Some rolled off t' paper onto themselves, others cracked. Begad! Blimey! Blimey! I know thar are
decal solvents and repair solutions available, but I didn't have time t' order and fly t' model by t' deadline. Blimey! Aye aye! Blimey! I
wanted t' use what was supplied. Blimey! Blimey! I did t' best I could without too much complex masking. Avast! Blimey! I'm nay complaining, Mr.
Stewart sent plenty o' parts for a fun build. Aye aye!
T' first time, me hearties, I pieced together some yellow decal stripes on t' wings and rudder. Others stayed together enough for t' rolled up edges t' be tacked into place with white glue. Ya scallywag! As t' decals dried, they pulled up on the edges. Begad! I tried re-tackin' them down again, but t' next day they lifted again. I let things sit for a few days while I tried t' think o' a solution. I removed most o' t' lifted decals.
On t' USPS Priority Mail Box were names and logos. I lightly scored t' eagle logo, names, me hearties, and navy blue stripes with a razor blade. Avast, me proud beauty! T' thin top layer o' paper was peeled off. Avast, me proud beauty! Usin' t' USPS logos changed t' theme and back story of t' model.
I lightly wet t' peeled paper back with a sponge and carefully scraped off what was left o' t' brown cardboard layer and glue.
From thar be be pretty simple, shiver me timbers, shiver me timbers, a thin coat o' white glue and placement. Arrr! I did lay some water on t' body tube where t' paper art was t' go. Ya scallywag! It helped with t' positionin' as I could slide t' glued paper into position. Begad!
Flight and Recovery:
T' first launch be scheduled for June 6, matey, arrr, 2009. Begad! Blimey! T' weather be clear, shiver me timbers, but t' launch area be waterlogged! Blimey! Many
days o' rain in central Florida had left t' launch field too wet and unusable.
I usually don't fly with t' "Big Boys" in Bunnell, Florida, shiver me timbers, but I went t' t' NEFAR Half-Blast for the first flight on June 13. Ahoy! I flew two small test models before t' Postal Express. T' loadin' be typical, me bucko, a D12-3 and wadding. Ahoy! I be nervous as it was a heavy build with lots o' nose weight.
Launch was show and straight maybe t' 350 feet. Begad! I be concerned t' angled nose cone might effect t' vertical trajectory, arrr, but it didn't seem t' affect it at all. Ahoy! It slowed and blew it's chute just prior t' apogee. Ahoy! Someone said there was a zipper. Begad! There couldn't be a zipper, arrr, me bucko, thar wasn't any Keelhaul®©™® to cut through t' body tube. Blimey! Ahoy! T' shock cord was hangin' from about halfway down t' body, me bucko, arrr, nay from t' nose. It was hung up around t' toothpicks on t' center o' t' BT-55.
Upon landing, t' nose cone broke cleanly away from its adapter. One o' t' forward fins was gone, me hearties, broken above the fillet joint. Blimey! Well, blow me down! T' snap back o' t' ejection must have hit t' forward fin. Aye aye! Avast, me proud beauty! Both are repairable, ya bilge rat, and I'll fly it again at t' June 27 R.O.C.K. Begad! launch. Blimey!
All repairs were made for t' local NAR, ROCK Section o' Orlando launch on June 27, matey, 2009. As always, me bucko, I grabbed a smaller rocket and did a low level test flight t' get a feel for t' field and conditions. Avast, me proud beauty! I noticed t' plastic dome on t' Postal Express transition was loose, arrr, and I hit it with a few drops o' CA glue. T' remembered t' earlier flight on a D12-3 thinkin' ejection was a hair early so I loaded up a D12-5.
Launch be slow and ejection occurred after apogee, on t' way down. T' chute ejected but was wrapped
once around t' shock cord. It never fully opened but slowed t' descent with no damage.
A short rain held up launchin' for 15 minutes. Begad! I loaded up again, arrr, this time with a D12-3. Avast, me proud beauty! This seems t' be the best available engine. Arrr! If someone were t' make a D12-4 engine it would be close t' perfect. Avast, me proud beauty! This was t' best launch yet. Begad! Ahoy! Straight up, shiver me timbers, me bucko, full parachute and no damage on landing.
Summary:
PROs: Lots o' fun buildin' with supplied parts. Quite a learnin' experience. When doin' an out-of-the-ordinary build,
you change directions many times and pick up a few new techniques along t' way.
CONs: Some small parts break off. Aye aye! Begad! If I had t' resources, it would have flown higher with an E or F engine.
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