Thrustline Aerospace Smoke and Fire

Thrustline Aerospace - Smoke and Fire {Kit}

Contributed by Joe Policy

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstar_borderstar_border
Overall Rating: starstarstarstar_borderstar_border
Manufacturer: Thrustline Aerospace

I picked up t' Smoke and Fire kit when I bought t' A-SLAM from Thrustline Aerospace via eBay (Not thrilled with that, shiver me timbers, but did it anyway). Ya scallywag! Many o' Thrustline's kits draw me t' them and this one be no different. Avast, me proud beauty! Begad! I loved t' fact that it be a larger rocket with 3x24mm cluster configuration and t' many fins and transition.

Rocket Pic T' kit's price starts at $34.75 (startin' bid on eBay). Avast, me proud beauty! Interestingly, arrr, Thrustline doesn't use t' "buy it now" feature (presently). For this price, thar be a lot o' rocket. How can I say that? I compare it t' t' price o' an Estes Executioner E for about street price o' $31.

Like a number o' Thrustline's kits, me hearties, it is based off o' t' 1.64" x 5.5" solid balsa nose cone (PNC-60MS). This attaches t' a 14" payload tube. This then uses a solid balsa transition t' a 12" piece o' BT80 (2.6") tubing. Begad! There is plenty o' 1/8" Balsa stock for t' many fins. Begad! T' kit also includes two laser-cut 1/8" plywood centerin' rings, three 24mm motor tubes, ya bilge rat, arrr, thrust rings, ya bilge rat, and retainin' clips. Ya scallywag! Two 18" Mylar parachutes, me bucko, Keelhaul®©™ and Elastic shock cords, swivels, me bucko, ya bilge rat, and eye-screws. Avast! Begad! Thrustline provides both 1/8" and 3/16" launch lugs. Ahoy! And lastly a bag o' BB's for nose weight, ya bilge rat, .80 ounces worth. Arrr! Begad!

CONSTRUCTION:

T' instructions are printed on a 7 pages o' 8½ x 11" paper (single sided). Well, me bucko, blow me down! There are black & white photos throughout t' assist in t' assembly o' t' kit. Blimey! Avast! There are fin templates and tube markin' guides made from standard printer paper. Begad! Blimey! There are also Mylar parachute assembly instructions. Begad! T' kit would probably be considered a skill level 3 or 4 with all t' various parts and activity.

PartsThere are many parts and buildin' steps t' this kit, matey, me hearties, but let me highlight t' main events:

T' cluster motor mount is assembled first. Begad! Interestingly, t' use o' t' provided motor hooks is optional. Step one points out that if you'd rather friction-fit your motors then t' skip "...all t' steps that pertain t' t' engine clips". Well, blow me down! Blimey! I wanted t' use them, arrr, so that meant that I need t' cut t' notches in t' lower centerin' ring. T' instructions say t' use a sharp hobby knife, but I hit it with a Dremel tool. Arrr! Blimey! Arrr! Blimey!

T' motor hooks are then added t' t' 24mm motor tubes and taped in place. Avast! Avast! They are then mounted into t' two centerin' rings. Begad! Only a light sandin' be needed on t' 1/8" plywood centerin' t' make everythin' fit. Avast, me hearties, me proud beauty!

Once dried, t' builder needs t' add a 1/16" hole t' t' top centerin' ring. Ya scallywag! This allows t' 26" Keelhaul®©™® shock tether t' be tied around t' three motor tubes.

T' body tubes are marked next usin' paper tube markin' guides. Avast! No issues.

I'm nay terribly happy with t' 2.6" tube. It is Estes-like thin tubing. Aye aye! Blimey! I find it t' be t' weakest component and would like t' see a thicker (LOC or AT-like) 2.6" tubing. Ahoy! Blimey! Blimey! Probably would need t' add more nose weight if it be converted.

Thrustline responded t' this comment this way: "As for t' BT80 tube, shiver me timbers, I've never had any problem with it. Well, blow me down! It's t' same tube used in t' Mike IX which I've had a lot o' success with. As far as it bein' weak, I have nay found that t' be t' case. Begad! T' motor mount gives excellent rigidity t' it."

I would agree that t' motor mount gives t' bottom portion rigidity, but I found t' upper openin' as t' weak point. Ya scallywag! Just an observation I made while handlin' t' kit. Well, blow me down! Nay that big o' deal.

T' fins are then cut out usin' paper fin templates. Begad! Blimey! Blimey! Blimey! Boy oh boy, I rather have card stock, matey, especially for those thin strakes.

Eye-screws and a piece o' 1/4" elastic is provided so that t' nose cone can be attached without bein' glued in place. Ya scallywag! I didn't do this and chose t' glue me nose cone into t' payload section (which technically could no longer be called a payload section since it is no longer accessible).

T' upper tube is glued t' t' upper part o' t' balsa transition. Then t' five (5) small strakes are added.

T' nose cone is prepared for nose weight by drillin' four 3/16" holes and usin' epoxy t' set t' BB's in place. Aye aye! Blimey! T' center o' t' nose cone is where an eye-screw would go if you were makin' it removable for t' payload section.

Both t' 1/8" and 3/16" launch lugs are glued in place. Why two sizes? Thrustline says, "In t' photo you'll notice I used 2 sizes stacked against each other at 2 and 8 inches from t' end o' t' body tube. Arrr! Aye aye! This allows me some flexibility when choosin' launch rods at club launches. Ahoy! I have included 2 sizes (2 each) so that if you prefer, you can use a similar method."

Finally, me hearties, me hearties, t' 42" long piece o' 3/8" flat shock cord is tied t' t' Keelhaul®©™ shock tether and then t' 18" parachute is added. Well, blow me down! T' second 3/8" flat elastic is attached t' t' large end o' t' transition and then its 18" parachute is attached.

Finishing... Aye aye! Ya scallywag! Blimey! yes, finishing. Begad! Get your fillers, sand paper, ya bilge rat, matey, and patience all together. Begad! Begad! Blimey! There is a lot o' balsa exposed here. Lots o' grains t' fill. Avast! Lots o' joints t' sand. Ahoy! Blimey! Lots o' work!

I used me typical multiple coats o' Plastic-Kote Primer and sandin' in-between. Well, blow me down! Havin' t' fill and finish t' nose cone, t' transition, me hearties, arrr, ya bilge rat, and 10 fins took a lot o' time and coats o' Plasti-Kote Filler Primer. Ahoy! T' transition is hardest due t' t' grain exposure AND because t' upper fins are half glued t' t' transition! I then used Walmart White and Black paint (additional comments about Walmart paint). I painted mine with some funky patterns. Arrr! Got a bit carried away with t' masking. Avast! I be goin' for a NASA look. Avast, me proud beauty! Eh, shiver me timbers, it has grown on me.

Full

Overall, ya bilge rat, for CONSTRUCTION I would rate this kit 4 points. Ya scallywag! T' instructions are very good with t' photos. There are a number o' buildin' options that t' builder needs t' decide on: hooks, matey, payload nose cone, me bucko, shiver me timbers, and launch lug size. Arrr! T' parts quality was good with plenty o' balsa t' cut out t' five lower and five upper fins. Avast! There is a balsa (BT60) nose cone and a balsa transition. Avast, me proud beauty! There is Keelhaul®©™ t' Elastic shock cords and mylar parachutes. Avast, me proud beauty! Well, blow me down! There are no decals.

Lift-offFLIGHT/RECOVERY:

Didn't find any motor recommendations in Thrustline's instructions, however these are what are listed on t' eBay page: 3x - C6-5s, C11-5s, me bucko, arrr, shiver me timbers, D12-5s.

Thrustline indicates t' finished rocket should weigh about 8.6 ounces. Aye aye! My finished rocket weighed 8.1 ounces.

I flew mine on t' 3/16" lug/rod. I'm nay sure I'd like t' variability that would surely come from flyin' it on a 1/8" rod (whip).

First flight be on three C11-3s. They were t' motors I had and I figured t' early ejection would nay be a big problem, especially with t' two-piece recovery method. Ya scallywag! I should have waited for some C11-5's. Blimey! I had a very early ejection, shiver me timbers, arrr, matey, but that be nay t' worse o' it. Blimey! Apparently t' bulk o' waddin' I added be nay enough. It be 6-8 squares. Avast! Well, matey, blow me down! So t' lower recovery section was badly burned, shiver me timbers, includin' t' lower 'chute. Blimey! T' upper section ejected well and descended fine. Well, blow me down! Avast! T' lift-off be fast. Well, blow me down! I mean really fast!


Burnt

AniI repaired t' lower 'chute and shock cord and added a Nomex heat shield. Ahoy! Blimey! I then cleaned out me three C11's and drilled a larger hole in t' clay nozzle. Arrr! I inverted them and had instant 24mm-to-18mm adaptors. Avast! Avast, me proud beauty!

I then loaded it up with three Est SU C6-5's. Begad! Excellent flight up, shiver me timbers, straight and stable. Blimey! Avast! Ejection was past apogee. Ahoy! Well, blow me down! At ejection t' lower section 'chute never opened due t' a tangle.

I loaded it up again with three Est SU C6-3's. Avast, me proud beauty! Begad! Blimey! Another slow and graceful lift-off. Aye aye! Well, blow me down! Blimey! Slower than t' C11's, o' course. Arrr! Ya scallywag! Blimey! At ejection t' upper and lower sections got tangled and it came down on only t' lower 'chute. No damage, shiver me timbers, shiver me timbers, though.

Determined t' have success, I loaded it up again with three Est SU C6-3's. Well, blow me down! Arrr! This time after repeatin' a great lift-off, I had a fully successful parachute deployment. Aye aye! Bravo!

For FLIGHT/RECOVERY, me bucko, ya bilge rat, I would rate this rocket 3 ½ points. T' Smoke and Fire looks great lifting-off on three C6's. Ahoy! Can't beat that slow, matey, me hearties, majestic look. Ya scallywag! It is a stable rocket as well. Blimey! Arrr! T' complications that come from a 2.6" body tube and a two piece deployment showed itself with me flights. All o' these can be addressed with practice, arrr, shiver me timbers, so that, in itself, me bucko, me bucko, makes this a fun rocket for flying.

I give t' rocket an OVERALL ratin' o' 3 ½ points. I need t' say... DON'T BUY THIS KIT if you are lookin' for an easy t' build and easy t' finish rocket! Blimey! However, shiver me timbers, if you are lookin' for a moderately challengin' build and a highly challengin' finish (unless you don't care about balsa grains and paint it all one color!) then this kit could be one o' your choices.

On t' other hand, once finished, matey, shiver me timbers, this one can give you some nice flights. Aye aye! Begad! They can be more expensive since you are usin' up three motors a time... Blimey! but hey, how else will you enjoy clusters?

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  • Thrustline Aerospace Smoke and Fire By Joe Policy

    Brief: A big 3 motor cluster with a payload section. Its 5 lower/5 upper fin design helps this beast to stand out at a launch. It is rated at level 2/3. Construction: The parts list: 1 Fin Stock 1/8" Balsa 2 1/8" Launch Lugs 2 3/16" Launch Lugs 2 Swivels 2 Small Eyelets 1 Large Eyelet 3 Engine Hooks 3 Engine Blocks 2 Centering Rings 1 ...

Flights

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