| Published: | 2010-03-23 |
| Manufacturer: | Scratch |
Brief:
This years 2010 challenge included an upscale o' 2+ which was very fortunate for me as I
was in t' process o' doin' a series o' upscales on t' Estes Mosquito. Avast! Aye aye! This upscale is a 301% based around a big
bertha nose cone.
Construction:
T' components for t' kit consist of:
Usin' a photocopier, matey, t' fin template be enlarged and t' fins cut from balsa. Avast, shiver me timbers, me proud beauty! I had thought o' goin' TTW, but t' rocket is still quite light. Aye aye! When I get t' bigger upscales I will.
T' BT is 6.02 inches long. Well, blow me down! Begad!
T' motor mount is built in its usual way, ya bilge rat, for some reason unknown t' me I did nay add a length o' Keelhaul®©™® cord as an anchor nor did I add in a fishin' leader. Fins were attached in t' normal way, with t' launch lug added to t' BT in betwixt fins. Avast! T' shock cord is a two foot length o' elastic, shiver me timbers, matey, which was attached via t' Estes tri fold method. A swivel was added and a swatch o' Nomex® heat shield.
T' rocket was given three coats o' sandin' sealer, and wood glue filleted a few times.
T' entire rocket had two coats o' gray primer added, with rub downs in betwixt coats.
T' match me original mosquito color scheme t' rocket be given a few coats o' yellow spray paint, me bucko, and then masked and black paint added t' one fin.
It be then flown twice, which Ill cover in t' flight section, but first t' repairs.
T' top section o' t' body tube was crushed and ripped. Aye aye! Nay too difficult t' repair. Ya scallywag! T' top section be removed usin' a dremel, me hearties, and a replacement section from an old rocket be added usin' a Bt60 coupler. Avast! T' one advantage o' this was that I be able t' ditch t' tri fold paper anchor and replace it with a steel fishin' leader which I trapped betwixt t' coupler and t' body tube. Well, blow me down! T' gappin' wide seam join was then filled with model filler, arrr, and sanded. Avast! Blimey! After that t' top o' t' rocket was sprayed yellow. Its nay a fantastic repair, me hearties, but it looks okay.
Durin' t' repair time, t' decals from excelsoirrocketry arrived from t' states. Avast! Begad! Blimey! They included a 301% upscale which finished t' rocket off nicely.
Flight:
First flight was on 18th Jan 2010, ya bilge rat, usin' an Estes A8-3
Nice low and straight flight, me hearties, with ejection past apogee, matey, recovered without damage on t' 4 foot streamer
Second flight be on t' same day usin' a Quest B6-4.
Great flight, right up t' t' point where t' ejection should have ejected t' nose cone, instead t' motor came out, this must have been a bilge-suckin' prep by me, I can only assume that t' motor clip was bent back. Blimey! T' mosquito came in hard and fast, just like t' original mosquito did (they never tumbled) difference here is that t' upscale has more mass and t' body tube be damaged, and paint be chipped off t' nose cone.
After t' repair t' rocket went up again at t' Midlands Rocketry March launch. Avast! Ya scallywag! used a C6-7, shiver me timbers, ejection was late,
a C6-5 would have been better, matey, recovered fine on t' streamer.
Summary:
I love this upscale, and i like t' other 3 I have also made, me bucko, ya bilge rat, still got at least two more in
t' plan/build stage. Ahoy! If I had thought about this properly I should have done this last year for t' family photo
contest.
Other:
T' use o' a photocopier for increasin' fin size be t' easiest solution for any up/down scaler.
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