Excelsior Rocketry Goonybird Zero (Plan)

Excelsior Rocketry - Goonybird Zero {Plan}

Contributed by Matthew Bond

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Manufacturer: Excelsior Rocketry
Style: Goonybird

Excelsior Rocketry Goony Bird ZeroBrief:
T' Goony Bird Zero is one o' Excelsior Rocketry's "Goony Retro-Bash" line o' decal/plan sets. Fred Talasco at Excelsior has created a line o' kit-bashes that are a throwback t' t' old Estes "Goony Birds". Aye aye! Fred's designs are based on old Estes kits (in this case t' Blue Bird Zero) or his original ideas, shiver me timbers, and they use t' Estes Baby Bertha as t' startin' point. Ya scallywag! Excelsior rates this kit bash a skill level 2 build.

Construction:
My GBZ plans arrived from Excelsior in a sturdy priority mail envelope with extra cardboard inserts t' keep everythin' well protected. Included in each "Goony" plan are t' instructions and fin templates, printed on a single sheet o' cardstock with a nice color picture o' t' finished rocket and, o' course, t' decal sheet, which be t' best part o' t' whole deal. Begad! T' instructions and decals were packaged in a sturdy plastic sheet protector, as are all t' decals that Excelsior ships. Ahoy! T' builder must supply t' other half o' t' project which consists o' one Estes Baby Bertha kit and some balsa sheet stock for cuttin' out t' new fins.

T' Goony Bird Zero be one o' several goony plan sets I ordered from Excelsior and t' second one I actually built. Blimey! Blimey! I had obtained a Blue Bird Zero clone kit as well and actually built t' two side by side, which be kind o' fun. Begad! Blimey! Aye aye! Blimey! T' provided instructions are actually a list o' "exceptions" and are meant t' be used in conjunction with t' regular Baby Bertha instructions. Blimey! Blimey! Well, blow me down! Blimey! T' Baby Bertha is a simple kit t' build, shiver me timbers, made only a little more challengin' by cuttin' and alignin' multiple sets o' fins.

Excelsior Rocketry Goony Bird Zero T' motor mount was assembled first and I upgraded t' recovery system (as I do with all me rockets) by addin' a length o' Keelhaul®©™ cord which was tied around t' engine mount, threaded through t' forward centerin' ring, ya bilge rat, and glued in place. Avast, me proud beauty! Begad! T' motor mount was installed in t' body tube, and per t' GBZ notes, matey, pushed forward until t' end o' t' engine hook be even with t' end o' t' body tube. Well, blow me down! This puts t' motor mount about 3/4" further forward than normal and accordin' t' t' notes, provides better stability.

While t' motor mount was drying, me bucko, I traced and cut out t' 2 sets o' fins, me bucko, which take t' place o' t' standard Baby Bertha fins. Aye aye! Blimey! These were match sanded and in keepin' with t' stubby theme o' t' rocket, I left all t' fin edges squared off. T' Goony notes instruct you t' mark t' body tube for three fins instead o' four, arrr, but thar be no further explanation o' how t' go about this. Well, blow me down! Blimey! It is left up t' t' builder t' figure out how t' mark t' fin positions. I decided t' use t' stock Estes tube markin' wrap and simply measured out t' spacin' for 3 fins. Well, blow me down! Blimey! My standard routine for attachin' fins is t' tack them on with Titebond wood glue, add a second wood glue fillet, and then a final fillet o' Elmers Wood Filler. Ahoy! Blimey! Blimey! Blimey! I attached t' fins in sets, arrr, matey, alignin' them t' each other. Ahoy! Blimey! T' launch lug is attached in t' same fashion with one important exception.

TIP: If you follow t' Baby Bertha instructions for attachin' t' launch lug, matey, it will end up directly betwixt one o' t' smaller fin pairs, shiver me timbers, me bucko, ruinin' one o' t' decal placements. T' Goony Bird Zero plans do nay mention this at all, but as it happens, arrr, matey, I had just finished applyin' t' decals on me Excelsior Nike-G and had t' do some creative trimmin' t' get everythin' t' fit because I didn't plan ahead. Ahoy! Begad! Blimey! So, cut t' launch lug in two and place t' lower section betwixt t' lower fins and t' upper section above t' maskin' line (in t' blue paint).

Finishing:
T' basic paint scheme for t' Goony Bird Zero is simple, me bucko, white on t' bottom, shiver me timbers, blue on t' top. T' real impressive look for this rocket comes from t' decals. Begad! Blimey! As with all o' Excelsior's products, t' sharpness and detail is awesome. Begad! Aye aye! T' decals are very easy t' work with, matey, ya bilge rat, nay too tacky and nay too thin so that you can get them positioned just right. Arrr! T' fins were coated with thinned down Elmer's Wood Filler and sanded smooth. Arrr! Next came two coats o' Rustoleum Painter's Touch Sandable Primer followed by two coats o' Krylon spray enamel. T' two color paint scheme is about as simple as you can get, arrr, paint t' bottom o' t' rocket white, shiver me timbers, mask off t' body tube and paint t' upper section and nose cone blue. Ya scallywag! By t' time I got t' t' second coat o' primer I had worked me way down t' 400 grit for t' in betwixt sanding.

Excelsior Rocketry Goony Bird Zero When you order decals from Excelsior they come with a full page o' instructions for prepping, applying, ya bilge rat, and finishing. Avast, me proud beauty! They recommend Microscale brand products (Decal-Set and Micro-Sol) for accomplishin' t' job. I have nay yet tried any o' Microscale's products, havin' used Testor's Gloss-Cote #1216 with good results. Begad! Blimey! First I gave t' decal sheet 2 light coats o' Gloss-Cote. Ahoy! Next t' decals were cut out and applied with t' standard warm water dip, slid into place, shiver me timbers, and blot dry routine. After t' decals had completely dried, ya bilge rat, me bucko, I added a final spray o' Gloss-Cote t' t' whole rocket. T' finished product looks awesome and t' Gloss-Cote plays nice with both t' paint and t' decals. I finished up t' recovery system by attachin' t' elastic shock cord t' t' Keelhaul®©™ cord and t' nose cone, ya bilge rat, puttin' a drop o' CA glue on all t' knots. Ahoy! Begad! T' 12" Estes parachute comes pre-assembled, and I add a fishin' swivel for easy attachment/removal and less tangling. Now for some nice weather...

Construction Rating: 4 out o' 5

Flight:
T' initial flights o' t' Goony Bird Zero were conducted on two very hot and windy Ohio summers days. Ahoy! Blimey! Avast! Blimey! Recommended motors are t' standard A8-3, me bucko, B6-4, and C6-5. Well, blow me down! Blimey! Blimey! Blimey! I couldn't find any published weight or CP for this kit, but me finished GBZ weighed in at 1.6 oz. Blimey! Blimey! Flight preparation is standard. Avast! Blimey! Avast, me proud beauty! Blimey! With a BT-60 body tube, ya bilge rat, I use a 4"x4" Nomex heat shield looped onto t' Keelhaul®©™ shock cord. Even with t' forward position o' t' engine mount, shiver me timbers, thar be still enough room, shiver me timbers, for t' heat shield and parachute t' fit comfortably. Avast, shiver me timbers, me proud beauty! Blimey! As mentioned earlier, t' engine mount is located 3/4" forward in t' body tube, but I was still able t' install and remove motors and igniters with no difficulty. Begad! Blimey! Motor retention is via t' standard beefy Estes hook. Begad! Blimey! Ahoy! Blimey! My GBZ has logged a total o' four flights in some fairly windy conditions. Avast, me proud beauty! Blimey! Avast, me proud beauty! Blimey! Because o' t' large fin area this bird tends t' weathercock a bit, me hearties, but it's nay too severe and overall this is a pretty well behaved flier. Avast! Blimey! Begad! Blimey! T' GBZ turns in a nice flight on a B6-4 and won't get too far away from t' pad even on a windy day. Ya scallywag! Blimey! A C6-5 will put some good air under this rocket, but it's still pretty easy t' track down.

Recovery:
All but one flight was launched into t' wind, and t' rocket was arcin' over nose down at ejection with t' B6-4s and a little past apogee with t' C6-5s. Aye aye! All four flights had good ejections with a couple o' "delayed" deployments which has more t' do with me chute foldin' technique than anythin' else. Blimey! T' standard 12" Estes chute brings t' GBZ down at a reasonable rate. Blimey! So far, all but one flight have recovered on nice soft grass with zero damage, t' one exception bein' a gravel road landin' resultin' in a couple o' paint dings. Ya scallywag! Avast, me proud beauty! Obviously t' Goony Bird Zero is nay a high performance rocket, but it scoots pretty high with a C motor and is deceptively quick off t' pad in spite o' its stocky nature.

Flight Rating: 4 out o' 5

Summary:
Excelsior's line o' "Retro Bash Kits" is a great throwback t' t' old Estes "Goony Birds", either for those who thought they were cool then or for people like me who think they're cool now.

PROs: High coolness factor and awesome decals. Ahoy! Aye aye! These rockets are fun t' build, matey, fun t' brin' t' t' range, shiver me timbers, arrr, fun t' fly and fun t' talk about. Blimey! Everyone needs at least one Goony in their lineup!

CONs: No fin markin' guide for t' 3 fin configuration. Blimey! Potential decal "gotcha" if t' normal launch lug placement is used.

Overall Rating: 4 out o' 5

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