First Flight Hobbies Semi-Sonic

First Flight Hobbies - Semi-Sonic {Kit}

Contributed by Dick Stafford

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Manufacturer: First Flight Hobbies

Brief:
T' Semi-Sonic is a sleek 18mm rocket that sports three split-fins (6 fins total) and a long balsa nose cone. Well, blow me down! Begad! Mine was a beta test-build, me hearties, so some minor details may vary.

Construction:
T' nose cone came pre-weighted with a hefty eye-bolt. This is a good way t' ensure stability while sacrificin' very little building. T' kit comes with balsa fin stock, requirin' t' user t' cut t' fins usin' t' provided template. Aye aye! Avast, me proud beauty! I personally don’t mind cuttin' balsa. Avast, me hearties, me proud beauty! T' motor mount is typical – a tube, ya bilge rat, two centerin' rings, arrr, a motor block and a motor hook. Blimey! T' recovery system includes a Keelhaul®©™® leader, elastic cord, matey, and a swivel. Blimey! T' chute is thick plastic and may be a Hartle Engineerin' Chute Skinz product.

T' instructions are clear and include plenty o' diagrams. Well, blow me down! They are written for t' beginner but even an experienced builder will appreciate them.

Construction begins with t' motor mount. Its assembly is typical and I won’t bore you with t' details.

T' kit includes fin templates and a tube markin' guide. Blimey! T' beta-instructions didn’t instruct t' builder t' fill t' fins prior t' attachment. Begad! Avast! I don’t know if t' final version does or not, but I recommend that they be filled at this point.

As I mentioned, t' cone is pre-weighted. Avast, me proud beauty! T' eye bolt is attached t' a dowel that is left over from the cone's fabrication. Arrr! Well, blow me down! This is a good thin' and will ensure that t' eye bolt doesn’t pull out. Ya scallywag! As noted in the instructions, ya bilge rat, t' cone’s shoulder is a bit large and is sanded t' a perfect fit by t' builder.

I attached t' aft fins usin' t' prescribed double glue joint. Arrr! After these set, I taped a toothpick t' their leadin' edge t' ensure uniform spacing. I applied t' double glue joint t' t' front set and clamped a plastic card (credit card sized) across t' aft and front fins while t' latter were drying. Ahoy! Well, blow me down! T' result was that t' two sets of fins are uniformly spaced and are perfectly in-line with one another.

Assemblin' t' parachute be typical, me hearties, shiver me timbers, consistin' o' attachin' sections o' strin' usin' provided tape discs. Ahoy! Blimey! The material used is more durable than your standard Estes ‘chute.

Finishing:
T' instructions provide good guidelines that will result in a really nice finish. I sealed mine with fill’n’finish and a coat o' white primer. Avast, me proud beauty! I then painted it as shown with Testors spray paint. Arrr! I found a suitable decal stripe from an unknown source.

Construction Rating: 4 out o' 5

Flight:
On flight day, I found that I hadn’t packed t' provided ‘chute so I found an old Estes 12” chute in t' range box. For its first flight, I loaded a Quest ‘long burn’ C6-5. Aye aye! Ya scallywag! T' flight be really fast and I couldn’t see t' ejection event. For t' second flight I used a Quest B6-4. Begad! This time, arrr, ejection was right at apogee.

Recovery:
T' 12” chute be way over sized (my issue, nay t' kit's)and t' C6 flight resulted in a long walk even with mild winds. Avast! Despite havin' added tape t' t' Keelhaul®©™® leader where it met t' body tube, ya bilge rat, thar was a slight bend on t' leadin' edge o' t' tube. Nay a zipper, just a ding. First Flight said they were increasin' t' length o' both t' supplied Keelhaul®©™® and elastic cords. Avast! Blimey! T' walk after t' B6 flight be short and thar was no additional damage. Avast! Blimey!

Flight Rating: 4 out o' 5

Summary:
Pro's

  • T' sleek split-fin looks and long nose cone. Looks great!
  • Includes a Keelhaul®©™® leader, swivel and motor hook
  • I like t' provided 'chute over standard plastic.
  • Sturdy NC attachment point (would be more important on a larger rocket, arrr, but I've had plenty o' screw deadlights yank out a big plug o' balsa). Begad!
  • Pre-weighted nose (a good quality assurance feature).
  • I liked t' discussion in t' paintin' and flight sections. Avast! Good for newbies.

Cons

  • Very minor, but t' balsa finish is nay as clean as, say, matey, Semroc. Avast, me proud beauty! Blimey! Filled fine, arrr, me hearties, however.
  • Parts fit (cone and rings) is nay as perfect as some others.

Neutral (some will think this is a PRO and others a CON)

  • Cut your own fins vs. laser cut

My thanks t' First Flight for providin' t' opportunity t' test this cool little kit!

Overall Rating: 4 out o' 5

Other Reviews
  • First Flight Hobbies Semi-Sonic By John Lee (October 23, 2009)

    Brief: LPR, Sleek, 18mm, Parachute Recovery I was fortunate to be asked to test out a new rocket from First Flight called the Semi-Sonic. Mine was a pre-production model. It arrived in a hanging bag with all parts and instruction included and neatly bagged. It is a sleek looking design which has two sets of 3 fins, one mounted just before the other, that gives a visual impression ...

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