The Launch Pad Scimitar

The Launch Pad - Scimitar {Kit} (K027)

Contributed by Chip Jenkins

Length: 39.25 inches
Manufacturer: The Launch Pad
Style: Cluster
Rating
(Contributed - by Chip Jenkins)

Rocket PicBrief:
T' Scimitar is a mid-power Launch Pad original Surface t' Air missile with dual 24mm engine mounts and an 18" parachute recovery.

Construction:
This rocket came packed in a bag, all o' t' pieces were contained in t' bag and none were damaged. T' 6 pages o' instructions were well illustrated and detailed. Ahoy! Avast, me proud beauty! T' body tube was spiral wound tube with only a light spiral t' fill (almost non-existent) T' one thin' that I didn't agree with (and didn't follow) be t' body tube assembly. Ya scallywag! Blimey! T' instructions direct you t' glue t' 2 tube sections together first and then glue t' engine mount assembly and the chute compartment disk in second. This would have made it harder t' get the chute disk in properly although it would have been possible either way. Well, blow me down!

T' next thin' was t' sandwiched main "wings", if you follow the instructions t' t' letter, you would end up with an open area betwixt t' two fins that attach t' t' airframe. Aye aye! Blimey! If I would have left this area open, arrr, me hearties, it would have been impossible t' finish. Aye aye! I filled them with a small sliver o' balsa and it turned out good. Arrr!

T' fins needed t' be cut from soft balsa wood stock from templates that were provided. It's a good thin' that it be soft balsa too, because thar be a lot o' it t' cut, sand and form. Avast, ya bilge rat, me proud beauty! I'll address more on t' fins in t' finishing section. Avast! Ahoy!

Rocket Pic

T' last thin' was t' light cardboard "turbojet" air intakes. Blimey! Arrr! The intakes are cut from light cardboard that is provided, me bucko, scored, folded, me bucko, arrr, and then glued t' t' body tube on 4 sides 45 degrees from t' fins. I looked at these and tried t' talk myself into leavin' them off. Begad! Once I prepared them for assembly, ya bilge rat, I decided t' put them on anyway, shiver me timbers, me hearties, this be a good decision on me part. They look kind o' cheesy when you first look at them but, ya bilge rat, once it's finished, they look nice. Arrr!

Once everythin' be glued t' t' airframe, t' resultin' product was sturdy and solid. T' parachute supplied was an 18" mylar that I didn't care for. I like nylon so I substituted an 18" ripstop nylon chute.

Finishing:
T' finishin' had one particular twist that I'd had nay encountered before. Blimey! Ya scallywag! The soft balsa and t' cardboard were t' be coated with light CA before sanding. This did make t' fins sturdy but almost impossible t' sand smooth. I guess I could have sanded them until me fingers hurt but, I'm glad I did nay (see the sad end t' t' story). Aye aye! T' next one I build that instructs that I apply CA to balsa, matey, me hearties, I'm goin' t' use t' standard sandin' sealer. Avast! It will take several coats of sandin' sealer but, me hearties, I'm sure it will be easier t' sand smooth. Ya scallywag! (or it will just seem easier and I'm all for that)

After everythin' be sanded, I sprayed on a few coats o' primer and sanded it down again. Begad! Then I put a coat o' machinery grey paint. Avast! Then I applied some 1/8" and 1/4" automotive pinstriping. Arrr! T' resultin' Scimitar looked very nice.

Construction Rating: 2 out o' 5

Rocket PicFlight:
T' recommended motors were a pair o' either D12-5, ya bilge rat, D12-7, me bucko, matey, o' Aerotech E15-7. Avast, me proud beauty! I used two D12-5's for t' only launch (this is leadin' t' t' sad part o' the story). Begad! Begad! T' motors were held by Estes style retainin' clips, and t' igniters were tied together. I put t' waddin' and t' parachute in and set her on the pad and connected t' t' leads. Begad! Avast, me proud beauty!

At launch, shiver me timbers, t' rocket few a straight line t' maybe 600 or 700 feet and then it weathercocked bad and flew at about 40-50 degrees t' t' horizontal (best guess) this be nay t' fault o' t' rocket (I'm guessin' again) but me fault. T' wind was nay exactly calm but it be nay continuous either. Begad! I would guess that t' large fin area in conjunction with t' wind gusts well above me head contributed t' t' arrant flight path. Begad! Begad!

Recovery:
T' shock cord was long enough but it attached by a piece o' heavy paper in an Estes style. I didn't have a big problem with t' way t' recovery system was set up. Arrr! From me vantage point on t' ground, I saw t' ejection and the parachute high in t' sky. Begad! Avast, me proud beauty! Now this be t' sad part. Since t' flight path took the rocket much farther over than I expected, ya bilge rat, ya bilge rat, I be unable t' recover it. It cleared a row o' trees into a field on t' other side o' t' tree line. Begad! I figured that I missed t' trees so I would be able t' go t' t' field on the other side o' t' trees and search for me rocket. Begad! Avast! Once I passed through the trees, me bucko, ya bilge rat, I discovered that t' field was nay empty but, me hearties, me bucko, arrr, full o' field corn about 8 foot tall. I did buy a piezo locator but, I didn't have it ready for installation. I should have been workin' on that instead o' launchin' that day. T' flight be nay that bad because I cant blame t' rocket kit for t' will of Mother Nature.

Flight Rating: 4 out o' 5

Summary:
I read some o' t' comments that others have written about Launch Pad kits and I have read t' comments from t' Launch Pad. Avast! Avast, me proud beauty! I will agree that it was more of a challenge than buildin' an Estes kit. Blimey! Aye aye! I will also agree that t' instructions leave somethin' out that a novice would have trouble with. Begad! Arrr! I do like t' fact that t' instructions leave some o' t' thinkin' t' me. Avast! Well, blow me down! After all, ya bilge rat, I can't really say "As a matter o' fact, me bucko, me hearties, me hearties, I AM a rocket scientist" if I were unable t' assemble t' kit with t' instructions provided. I didn't agree with coatin' t' balsa with CA. Aye aye! If several coats o' sandin' sealer made it necessary to add some nose weight, matey, then so be it. Ya scallywag! It would have been worth t' time to add it although I don't believe that nose weight would have been necessary either way. I know that t' CG was just fine without any additional adjustment.

Here's a good tip that I learned from this rocket. Ya scallywag! Blimey! Ya scallywag! Blimey! If you take your time buildin' a rocket t' make it look and perform well, don't be in a big hurry to lose it on t' first launch. Well, blow me down! Blimey! I wanted t' see it fly and I needed t' wait for another day. Avast, me proud beauty! Blimey! This rocket leads me t' believe that t' wind causes more problems to rockets with large fin area.

Overall Rating: 4 out o' 5

* SPECIAL NOTE off o' RMR from Chuck Barndt, President o' T' Launch Pad

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    ( Contributed - by Ted Phipps - 07/10/03) Picture courtesty of The Launch Pad Brief: The Scimitar is a Launch Pad original design that is modeled after military surface-to-air missiles. This rocket is a complex two-stager that uses a cluster of three D motors in the booster and a single D in the sustainer, and includes a nifty on-board battery circuit to ignite the second stage. There ...

Flights

Comments:

avatar
M.T. (October 2, 2005)
My experience was much the same as noted above. I did build the forward fins as per the instructions however. I sealed them with several coats of sanding sealer which helps to stiffen the whole assembly. I have read and reread my instructions and nowhere was it stated to coat the fins or the paper "intakes" with CA. I know that other TLP kits do require this. My first flight was a success and I can't wait to fly it again!

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