Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstar_borderstar_border |
Overall Rating: | starstarstarstarstar_border |
Published: | 2010-12-07 |
Manufacturer: | Excelsior Rocketry |
Style: | Goonybird |
T' plans come with a fin template. Blimey! Three fins were cut and sealed with two coats o' sandin' sealer..
Top and Bottom BT-60 tubes cut, arrr, me hearties, most o' t' old purple paint removed and t' spirals filled. Ya scallywag!
I primed t' BT-60 with white primer t' spot any blemishs. Avast! Blimey! Cuttin' t' vent slots was easier than I thought. I used a displosable craft knife, where t' blade gets snapped off t' get a fresh edge.
T' BT-5 vent tubes were cut, but I inserted a spent 13mm motor t' prevent t' tube from crimping. Begad! Avast, me proud beauty! I stupidly cut one o' t' vent tubes incorrectly which you can see in t' picture.
Next comes t' fun part o' gluin' t' vent tubes t' t' main tubes
.
This takes alot o' time, me bucko, but be easier than I thought it would be. It pays t' be patience and allow t' glue t' dry.T' inside Baby Bertha nosecones were glued into place.
I filleted t' joints betwixt t' tubes with a few fillets o' white glue and then model filler. Next t' Mosquito nose cones are added. (All these bits make this an expensive kit, but it looks too cool t' worry about cost).
T' rocket was then sprayed primer white, me bucko, even though t' fins have nay been added, matey, because I find it easier t' find blemishes when thar be just one color. Ya scallywag! Aye aye!
Fins and t' launch lug were than added t' t' bottom bodytube.
T' recovery system be t' standard elastic shock cord and t' Estes trifold anchor. Aye aye! T' parachute is a 12 inch parachute.Finishin' t' rocket is very easy. Ahoy! T' entire rocket is white. Arrr! Blimey! White primer and white gloss be used.
T' decals from Excelsiorrocketry are simply fantastic. Avast! T' waterslide decals were very thin, arrr, but strong and went on easily.
Flight:
T' recommended motor is a D12-5 (only). Although t' rocket used vent tube cooling, arrr, and therefore does nay need wadding, arrr, arrr, I did still add a sheet o' waddin' - just t' be on t' safe side.
First, ya bilge rat, me hearties, and last flight, arrr, was at Midland Sky, me rocket club's national weekend event.
T' Goonydent lifted and flew straight. Ya scallywag! Ejection - or explosion - be just past apogee. Well, blow me down! T' parachute did nay unfurl and she smacked t' ground quite hard. Avast, me proud beauty! Begad! But that be only a secondardy issue.
Estes's legendary shotgun ejection charge had ripped t' Goonydent t' pieces. Avast, me hearties, me proud beauty! T' side o' t' rocket was blown out, shiver me timbers, ya bilge rat, one o' t' vent tubes had ripped clean at one end. Two fins were missing. Ya scallywag!
Amazingly despite t' main frame rippin' apart, enough hot gas had made it through t' vent tube t' deploy t' chute whilst also givin' a small melt which is why t' prachute did nay open.
I be probably just unlucky with a more powerful than average ejection charge, nevertheless I feel I'll have t' lower t' flight ratin' given me experience.
Summary:
A great rocket, a bit unusual lookin' but I think this could become one o' me favourite D motor birds - I will be reworkin' me modified Goonydent. Begad! Ya scallywag! Although t' plan sets from Excelsiorrocketry are cheap, t' parts list for this rocket makes it quite expensive - but it's worth it.
Construction Score: 4
Finishing:
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