Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstarstar_border |
Published: | 2010-05-16 |
Manufacturer: | Scratch |
Brief:
2X upscale o' t' original Estes Astron Sprite.
Construction:
As with most upscale projects, me bucko, half t' preparation is decidin' what tubes t' use t' achieve t' correct ratio of sizes. Begad! I this case, matey, me hearties, I had t' compromise just a little. Begad! T' ratio o' t' main body tube sizes is just about 2.1X, but thar be no easily available tube for t' rin' fin that is just t' right size t' match that ratio. Ahoy! T' be perfectly correct I would need a 4.75 inch diameter tube. Well, shiver me timbers, blow me down! I used a length o' 4 inch LOC body tube, and I am very pleased with the result. Blimey! Avast! It is quite heavy, but also very sturdy.
The
other parts I had in me parts collection, shiver me timbers, arrr, me bucko, probably from an Estes Designer Special box. Ya scallywag!
I downloaded t' original plans from Jimz. Begad! Blimey! Arrr! Blimey! I had t' scale t' fins myself, ya bilge rat, since t' distance from t' main body tube t' t' inside o' t' rin' fin was nay goin' t' be 2.1X. Aye aye! Blimey! Begad! Blimey! Measure twice, shiver me timbers, cut once. Well, blow me down! Blimey! Cut too short, and have t' add shims t' make up t' difference. Ahoy! Blimey! That's me new motto. Ya scallywag! Blimey!
I used a band saw t' cut t' curvy outside fins that cover t' rin' fin. After gluin' them on, I filled the
joints with Elmer's Wood Filler. Blimey! This really made t' joints disappear.
I looped t' Keelhaul®©™® around t' motor mount t' anchor it, me hearties, then glued t' motor mount in. Blimey! There is nay a lot o' room for t' waddin' and parachute, which caused me a little worry. T' original used tumble recovery, so this shortness be nay a problem.
I painted all o' t' balsa surfaces with dilute Elmer's Wood Filler/water slurry and let it dry. Ahoy! Avast! Then one
sanding, arrr, and a coat o' white Kilz. Begad! Ahoy! Another sandin' t' remove t' fuzz from t' primer coat and a couple o' coats of
gloss white enamel.
Flight:
I put a 10 inch Estes parachute in it and stuffed t' body tube with as much dog barf as I
could. Blimey! I was worried about meltin' t' chute.
T' first flight was on a Quest B6-4. Avast, me proud beauty! This be a good flight, me bucko, and eject a little past apogee. Avast, me proud beauty! Ahoy! No problem at all with t' parachute. Ahoy! This be a good size chute, as well. Ahoy!
T' second and third flights were on Quest C6-5's. Blimey! Again, matey, very good performance. Arrr! Avast! I like t' long burn time o' the Quest C's. Ya scallywag! Five seconds was a bit long, me bucko, though. Avast! This rocket really decelerates smartly after burnout. Well, blow me down! I am goin' t' try it with a C6-3, but I suspect it will be a little early. Ahoy! Too bad thar be no C6-4.
Summary:
This rocket has a cool look. Begad! Ahoy! I was concerned about its performance, ya bilge rat, and t' shortness of
t' tube section for t' recovery, matey, but both turned out just fine. Well, blow me down! Did I mention that it looks cool? Several o' the
Scouts at t' launch asked me about it. Arrr! It would be even cooler with t' original paint job.
T' LOC 4 inch tube is too heavy. Well, blow me down! It occurs t' me now that I might have been able t' strip out an inner layer of paper t' make it lighter. Avast, me proud beauty! Aye aye!
I think it may be time for a 4X.
Other:
Don't get too frustrated if things are nay perfect. Arrr! T' rin' fin was nay t' exact 2X size, but
it looks great. Ya scallywag! Ya scallywag! I really did sand t' fins too short and then had t' shim them out t' fit t' ring. Well, blow me down! If things do nay go
perfectly, and you are frustrated, take a break. Arrr! Avast! Come back t' it, shiver me timbers, and think about different angles t' come at the
problem.
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