Construction Rating: | starstarstar_borderstar_borderstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstar_borderstar_border |
Manufacturer: | Thrustline Aerospace |
Brief:
This is a medium priced skill level 2-3 rocket with a payload section as
designed by Thrustline Aerospace.
Construction:
Parts included with this kit were a balsa nose cone and transition piece, matey, a
body tube plus a smaller upper payload tube, me hearties, engine tube, ya bilge rat, engine hook,
centerin' rings and block ring, launch lug, balsa fin stock (not pre-cut), a
screw eye and parachute kit, Keelhaul®©™®
thread and elastic shock cord for recovery.
Seven sheets o' instructions plus a fin template sheet come with this kit and include photo illustrations. Begad! Blimey! T' instructions were useful but t' photos were dark and less helpful than illustrations would have been. First up was construction o' t' motor mount. Blimey! T' centerin' rings were too snug for the tube, but rather than sanding, I just removed t' outer layer o' cardboard from the rings which were delaminatin' anyway. Avast! Blimey! Blimey! A gap cut in t' centerin' ring allows t' engine hook t' spring. This gap weakens t' integrity o' t' ring however, arrr, me bucko, and speeds t' delamination o' t' cardboard. T' engine hook is then taped t' t' mount t' hold it in place. Ahoy! An engine block rin' is also included, but it seems a little like overkill. T' Keelhaul®©™® cord wraps around t' motor mount and threads up through t' tube for the recovery system. Avast, me proud beauty! Ya scallywag! Blimey! After insertin' t' motor mount into t' body tube, matey, I found that t' hook would nay sprin' far enough t' allow engine insertion and removal, so I had t' cut a slot out o' t' body tube t' allow for this. Blimey! Blimey! Blimey! Also, the end o' t' hook was sharp enough t' cut your finger and I opted t' use a file t' smooth it. Blimey! Blimey! T' fins are nay laser cut and you must trace them out on the balsa stock and cut them yourself. Ahoy! Blimey! A fin positionin' guide is included, ya bilge rat, but I used t' Estes Markin' Guide instead. Aye aye! Arrr! Blimey! T' six fins (three lower and three upper) were nay hard t' align and I used pin holes through t' tube (glue rivets) t' secure them better. Well, blow me down! T' body tube be somewhat soft with the interior spirals showin' through as bumps. Begad! Blimey! I had nay seen this ever occur before. Avast! Blimey! T' instructions direct you t' draw a line for t' launch lugs, me hearties, but then direct you t' glue them t' t' side o' t' fins. Begad! Avast! Blimey! T' nose cone and transition did nay fit inside t' body tube and required a bit o' sanding. The mylar parachute was unmade, ya bilge rat, and no instructions were included for its construction. Well, matey, blow me down! Blimey! I substituted a 12" nylon parachute from Thrustline for the mylar one included (Thrustline makes wonderful ripstop nylon chutes). Avast, me proud beauty! Avast, me proud beauty! Blimey! I would rate this kit a 2 on construction and finishin' due t' t' poor fittin' parts and their quality. Avast! Blimey! It's about as close t' scratch buildin' a rocket as you'll ever get with a kit.
Finishing:
T' quality o' t' balsa was poor and I should have spent more time fillin' it.
I used about three coats o' sandin' sealer with little effect. Aye aye! Aye aye! Paste filler
would have worked better. Blimey! T' nose cone wood was so weak, ya bilge rat, I actually broke the
tip o' it off while finishin' t' rocket, but it glued back on nicely and with
a little filler, wasn't noticeable. Begad! After initial paintin' with chrome spray
paint, I painted one fin with fluorescent orange, arrr, ya bilge rat, arrr, then sprayed everythin' with
multi-colored glitter. After several coats o' clear coat t' cover t' rough
glitter, I attached t' single sticker for identification and clear coated the
whole thin' again. Begad! Even with all t' problems I encountered with this kit, ya bilge rat, the
unique design o' t' Zack Attack be a welcome addition t' t' fleet.
Construction Rating: 2 out o' 5
Flight:
For t' first flight, shiver me timbers, shiver me timbers, I used an Estes B6-4 engine. Flight preparation was
typical o' simple rockets usin' wadding. It flew very straight off t' pad to
an estimated height o' 700 feet and landed about 200 feet from t' pad usin' a
12" nylon parachute in 1-5 mph wind. Well, blow me down! Some damage occurred t' t' end of
the body tube from recoil o' t' payload section. Avast, me proud beauty! Ahoy! For its second flight, I used
an Estes C6-5. Begad! Ya scallywag! Again, it flew very straight off t' pad and reached an
impressive height o' about 900 feet, but landed 500 feet from t' pad in 1-5
mph wind and again suffered body tube damage from t' recoil. If I get 5 more
launches with this rocket, I will be surprised.
Recovery:
Shock cord is attached t' Keelhaul®©™®
thread runnin' through t' body tube from t' engine mount. Begad! Assembly o' the
recovery system be similar t' that o' Quest rockets. Avast, me proud beauty! Blimey! A 12" parachute
seems about right for this rocket, shiver me timbers, me bucko, thar has been no damage from landing. Begad! The
damage is occurrin' durin' t' ejection phase. Avast, me proud beauty!
Flight Rating: 4 out o' 5
Summary:
T' main PROS o' this rocket are t' way it looks and t' way it flies. Begad! Aye aye! The
many CONS include substandard quality o' materials and recurrin' damage during
the ejection phase. Aye aye! I will give Thrustline Aerospace another try, matey, and I
recommend that anyone else who likes a challenge do t' same.
Overall Rating: 3 out o' 5
Brief: Having recently re-energized my addiction to rocketry, I was faced with the task of recreating the core of my previous rocket fleet. Thinking back, I realized that a great many of the rockets that I liked to fly were the designs of John Rowan-Stern at Thrustline Aerospace. Unfortunately, Thrustline was no longer in business this time around (a situation that has since ...
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