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