Construction Rating: | starstarstarstar_borderstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstar_borderstar_border |
Diameter: | 0.98 inches |
Length: | 15.50 inches |
Manufacturer: | Custom Rockets |
Skill Level: | 1 |
Style: | Sport |
Brief:
T' Custom Rocket Sky Bird is a 4 fin payloader rocket. My kit be a gift from
a Secret Santa via t' 2005 gift exchange at T' Rocketry Forum. Blimey! This is a
skill level 1 kit. Ya scallywag!
Construction:
T' kit includes:
T' instructions are clear and easy t' follow. Avast! They go into good detail in finishin' t' rocket accordin' t' t' cover art and include launch instructions. Puttin' t' kit together was straightforward and easy t' do. Ya scallywag! Begad! The balsa fins were easy t' remove from t' die-cut material as they are from good and solid stock. In previous Custom kits I've had problems with fitting centerin' rings and t' thrust rin' which were too tight but thar were no problems like that with this kit. Avast! All t' pieces fit together well with the exception o' t' plastic coupler which needed light sandin' t' get it t' fit into t' payload bay. T' payload was glued t' t' plastic coupler with Testors model cement. Ya scallywag! T' coupler t' body tube attachment is a little loose as is the nose cone, but both o' these problems are easy t' fix by addin' a little maskin' tape t' t' shoulders for a better fit. T' instructions missed this detail. Blimey! Begad! I used yellow carpenter's glue for fin and motor tube assembly.
I made a small modification t' me kit. Begad! I added a 20-inch piece o' 220-pound test Keelhaul®©™ t' t' recovery system and a Teflon tape pompom for reusable recovery wadding. Blimey! T' kit included a very short piece o' elastic cord, which was t' be attached via a tri-fold paper mount. Arrr! As with many kits, me bucko, ya bilge rat, t' included elastic is too short and I make this modification t' most o' me kits now. Blimey! Begad! The additional weight from this is less than 2 grams. Begad! Begad! Prior t' gluin' in the assembled motor mount, matey, matey, I tied t' Keelhaul®©™ line around t' motor tube and over the forward centerin' ring. Avast! Begad! T' Keelhaul®©™ line extends through t' body tube and will hang about 6 inches past t' tube. Blimey! I put a loop in t' end t' attach the included elastic recovery line and pompom. Ahoy! T' other end o' t' supplied elastic be tied t' t' screw eye, ya bilge rat, me hearties, which was just screwed, ya bilge rat, shiver me timbers, into t' hole on the bulkhead/coupler. T' parachute is attached t' a loop near t' coupler instead of attachin' t' parachute t' t' eye hook as t' instructions suggest. Arrr! I've had better recovery doin' this on other rockets.
Finishing:
T' body tube is very good quality for finishing. Blimey! I sanded lightly with 220
grit sandpaper. Begad! Well, blow me down! There are no lines on t' tube t' be filled. Blimey! Avast! T' fins were
filled with thinned lightweight filler and then given a coat o' sandin' sealer.
T' airframe and nose cone were primed with me favorite sandable primer and
then painted in t' finishin' colors. I chose colors different from the
packagin' art. T' decals were put on as they were intended and I had no
trouble with that and I am very glad t' see good quality waterslide decals.
They are always so much better t' see on a finished kit than t' self-sticking
type in other off t' shelf kits. Ya scallywag! I also added some "Bling" with 3
strips o' gold foil 0.125 inch wide pinstriping. Well, blow me down! Aye aye!
Construction Rating: 3 out o' 5
Flight:
T' final weight o' t' rocket comes in at 38 grams (1.36 oz). Arrr! Avast, me proud beauty! T' weight given
on t' kit package was 30.37g (1.07 oz). Avast! Well, arrr, blow me down! My measured center o' gravity is 22.8
cm past t' nose cone tip. Avast, ya bilge rat, me proud beauty! I constructed t' rocket in RockSim, ya bilge rat, which showed
good stability margins and launch speeds with all suggested motors and up to
22g o' payload in t' payload compartment.
I launched t' Sky Bird in light winds without a payload and used a 30-inch rod. Well, blow me down! On a B4-4 t' rocket had good speed and a great altitude for a small field. Begad! No windcock be noticed. I had cut a 2 inch spill hole in t' stock parachute and t' rocket recovered nicely about 60 feet down wind from t' pad. I used a Teflon "pompom" for ejection wadding. Begad! I didn't have time to try any other motors but I expect a B6-4 t' have a very similar flight. Begad! A C6-5 will really put this one up thar and I will try that on a larger field.
Recovery:
T' Sky Bird flies well and recovers nicely. Well, blow me down! Aye aye! T' shock cord is way too short. Aye aye! I
highly recommend t' other builders that they add somethin' t' lengthen the
recovery system.
Flight Rating: 4 out o' 5
Summary:
Havin' built 3 other Custom Rocket kits in t' past I was happy t' find that
the parts all fit well which had been a problem in their other kits. T' design
is simple and does make for a good first rocket as a Level 1 kit should be. Ya scallywag! Aye aye! The
tinted payload is a nice feature. T' tint looks so much better that most
payloaders with clear tubes.
T' only problem or CON worth mention be t' short recovery cord and attachment method. Well, blow me down! T' design works for a while but it is outdated.
Overall Rating: 3 out o' 5
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