Thrustline Aerospace Black Shadow

Thrustline Aerospace - Black Shadow {Kit}

Contributed by Clive Davis

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar_border
Manufacturer: Thrustline Aerospace
Thrustline Aerospace Black Shadow

Brief:
This is a great little sport kit that is easy t' build and performs well. Begad! I got the kit as a prize by participatin' in one o' EMRR's Virtual Rocket Contests. I didn't place in t' top five, but I still participated and interestingly I would have selected t' Black Shadow as me prize had I finished first... Ya scallywag! So the moral o' t' story is this: take advantage o' t' EMRR contests. Avast, me hearties, me proud beauty! They are fun and you get stuff as well!

Construction:
T' Black Shadow came with t' followin' parts as well as an instruction kit a certificate o' authenticity (a nice touch):

  • balsa nose cone (BT-55 size)
  • body tube (BT-55)
  • engine tube (18mm)
  • launch lug
  • black fiber board centerin' rings
  • engine block ring
  • fin stock (sheet o' balsa)
  • screw eye
  • mylar parachute kit (9")
  • Keelhaul®©™® threat
  • elastic shock cord
  • engine hook

T' Black Shadow came in a sealed plastic bag. Blimey! T' instructions are easy to follow and contain photos o' various steps. Blimey! Ahoy! T' instructions were 5 pages long and were printed on a laser printer. Begad! Quality o' parts are very high. Aye aye! I love the balsa nose cone but t' balsa sheet I had for fins was slightly warped.

Construction begins with motor mount assembly. No problem here. Blimey! I like the idea o' havin' t' Keelhaul®©™® be tied around t' motor mount, me bucko, glued, ya bilge rat, me hearties, and then fed up through t' upper centerin' ring. T' upper centerin' ring, when glued into place, me bucko, also acts as a way o' keepin' t' Keelhaul®©™® in place. Avast! I also like t' engine hook. Arrr! Begad! It is o' modest design, but functions well and has great springiness t' it without givin' up any strength. T' lower centerin' rin' was a little tough t' fit, me bucko, but after a little sanding, it went together fine. Arrr! Well, matey, blow me down! T' black fiber board does leave black residue over t' motor mount when it gets in contact with yellow glue, shiver me timbers, but since this will all be internal, me hearties, it was nay a big deal. T' motor mount slid easily into t' body tube and I set this aside t' dry.

T' fin balsa sheet was warped, as I mentioned above. I used me tea kettle and me oven mitts, ya bilge rat, and simply steamed t' wood until it was nice and soft, relatively straight, shiver me timbers, and moist. Avast, me proud beauty! Avast, me proud beauty! Blimey! I then placed it betwixt two heavy books and took it out t' next day. Status: perfect. Blimey! Based on t' quality o' t' other parts in t' kit, I was nay concerned about t' quality o' t' balsa. Aye aye! Blimey! T' steam idea worked well and I will be sure t' do this t' more warped balsa, which I must admit is more common than we would like t' admit. Aye aye! Begad! Blimey!

T' instructions include a template for fin design, makin' them easy t' cut out, arrr, however, I would really appreciate t' actual template includin' a marking of either t' root edge or t' leadin' edge or both. I had t' actually look at a small photo on t' second page for this information. Begad! This is nay a big deal, but it would have made t' construction a little easier. I kept on wonderin' if I be gluin' t' right part o' t' fin on t' t' body tube. Avast! Aye aye! I rounded t' fins with sandpaper. Avast! Then I ran into me next problem. Begad! Begad! I used t' fin alignment sheet that was included in t' instructions. I put t' marks on t' body tube, me hearties, me bucko, then removed t' alignment sheet. I kept lookin' at t' body tube, and had an uneasy feelin' about t' lines. Ya scallywag! Sure enough, I used me Estes fin alignment tool and realized that t' Thrustline alignment sheet be nay t' same as t' Estes fin alignment. Begad! I decided t' use t' Estes fin alignment instead. Begad! Avast, me proud beauty! In t' end, matey, the fins look t' be perfectly aligned at a 90 degree angle.

T' four fins went on easily, arrr, me hearties, then I added a number o' glue fillets until I was satisfied that thar was a smooth transition from fin t' body tube. Avast! The next step was addin' t' screw eye t' t' nose cone. Avast! I used CA but after allowin' it t' dry, it came loose with a twist. Begad! This was weird, because I always use CA on screw deadlights in balsa nose cones. Aye aye! T' screw was covered with balsa, so I used yellow glue t' grip t' wood on t' screw eye, and then put it in t' nose cone. It gripped, and after it dried it was in for good. Begad! A piece of cake.

Shock cord construction: I was instructed t' create a small loop at t' end of t' Keelhaul®©™® so that it is just inside t' body tube then attach t' shock cord t' this. Well, blow me down! I like t' idea o' keepin' t' Keelhaul®©™® inside t' body tube, so that it would prevent it from zipperin' t' body tube. Finally, I added t' launch lug. Blimey! T' Black Shadow was now constructed and just needed t' be finished and flown.

PROs: High quality parts, easy t' follow directions

CONs: fin alignment template, warped balsa

Finishing:
I be instructed t' seal t' fins, shiver me timbers, ya bilge rat, and then paint t' rocket. Begad! I began by puttin' Elmer's wood glue over t' nose cone t' toughen it up and fill in part of t' grain. Begad! I used Elmer's Fill 'n' Finish, matey, me bucko, sanded and primed t' rocket followed by another round o' Fill 'n' Finish and primin' until t' rocket was ready for painting. T' nose cone needed ONE more treatment o' Fill 'n' Finish and primer simply because I wanted t' remove all signs o' wood grain.

Paintin' was easy. Ahoy! T' kit does nay come with decals but t' image o' the rocket online shows a black rocket with silver/white monokote on t' fins. Avast, me proud beauty! So, I painted me rocket matte black. I did nay have any white or silver monokote at home, so when I was with me wife on a trip t' Michael's, matey, I stopped in for monokote. Avast! Well, these people had never heard o' monokote before. Avast! I was surprised and disappointed.

Anyway, arrr, I did have a collection o' vinyl stickers o' jungle theme borders, so I used me zebra vinyl stickers t' add four bars on t' fins. Begad! In t' end, me bucko, I thought it looked good. Then, shiver me timbers, I put a layer o' Future Floor Shine over the rocket. I have used Future without any problems before, but on this rocket, Future soaked into t' space betwixt t' nose cone and t' body tube, ya bilge rat, kind of lockin' it up. I finally got t' nose cone off and then had t' add some glue to the inside o' t' body tube t' toughen it up and smooth it out again with sanding. Arrr! I have learned a lesson now with Future...take t' rocket apart and add t' acrylic with t' rocket in different pieces, matey, me hearties, if possible.

T' parachute kit contained a 9" mylar parachute. It had great quality Keelhaul®©™® shroud lines and went together smoothly.

PROs: body tube easy t' fill, ya bilge rat, fins are good quality and primed and painted well

CONs: no decals

Construction Rating: 4 out o' 5

Thrustline Aerospace Black Shadow

Flight:
On a recent club launch, I set up t' Black Shadow on an A8-3. It had a great flight, shiver me timbers, very stable and straight, me bucko, and parachute opened right at apogee. Perfect. Well, blow me down! I did notice t' top o' t' body tube did get a little wrinkle-dinged, but this was weird since t' parachute opened right at a time when t' rocket was barely movin' in t' air. Aye aye! Rocket landed fine.

Next flight, arrr, I used a B6-4. Well, blow me down! Avast, me bucko, me proud beauty! Another smooth, me bucko, stable, straight flight. Avast, arrr, me proud beauty! Got a lot o' positive comments and praise from other members in me club. Ahoy! Begad! The parachute again opened at apogee and it had a great return. I did notice a small hole right in t' center o' t' mylar parachute after t' second flight. I always think I have enough waddin' when in fact I should probably use another sheet or two. Avast! Avast!

Recovery:
I prepped with flame-retardant waddin' and powdered and folded t' 'chute. Avast, me proud beauty! The mylar parachute included with t' kit is o' excellent quality. Begad! I would definitely use Thrustline parachutes again. Begad! Recovery was perfect on both flights except for t' minor burn/hole in t' mylar 'chute after t' second flight.

PROs: It is easy t' prep because it has a wide body tube. Begad! Blimey! Avast! Blimey! Great quality mylar parachute. Arrr! Blimey! It also gets decent altitude on an A8, and flies really well on a B6-4. I can't imagine flyin' it on a C6-5.

CONs: None

Flight Rating: 5 out o' 5

Summary:
This is a great kit and it flies VERY well. It is handsome and easy t' put together. Avast, me proud beauty! Blimey! Blimey! Blimey! I would recommend t' following, though:

  • Include decals or monokote in kit
  • Correct t' alignment fin guide so that it is more accurate for fin alignment
  • Correct t' fin template t' indicate which side is root edge and leading edge

Overall Rating: 4 out o' 5

Other Reviews
  • Thrustline Aerospace Black Shadow By Matthew Bond (June 29, 2009)

    [Editor's Note: This review is a clone of the Thrustline Aerospace Black Shadow. Thrustline was out of business for a period of time (when author was cloning the rocket). Thrustline has recently returned to business selling the Black Shadow as a kit.] Brief: In one of my previous incarnations as a BAR I happened upon Thrustline Aerospace, a fairly new (in the summer of 2004) web ...

Flights

Comments:

avatar
G.W. (February 13, 2008)
This was my first Thrustline kit, and I was not disappointed. I noted some of the same issues as the review, but most of these were not a problem. I usually print fin alignment wrappers from VCP, so the included guide was not an issue for me. I always check the photos for fin alignment, so I had no trouble with picking the correct root edge. The balsa nose needed several coats to fill and get smooth. I finished the rocket in a metallic blue, and my daughter decorated it with small star stickers. First flight was a bit underpowered on an A8 - decent but not great. Subsequent flights on B6-4's and C6-5's have been awesome. Excellent kit! I wish I had bought several more. You won't be disappointed if you get your hands on one of these!

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