Sunward Aerospace Sukhoi SU-47

Sunward Aerospace - Sukhoi SU-47 {Kit}

Contributed by Brian Coyle

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar_border
Manufacturer: Sunward Aerospace

Brief:
T' SU-47 is another in t' line o' 'fighter aircraft' rockets from Sunward Aerospace Group, shiver me timbers, Ltd. Aye aye! T' kit is 27 inches long with a 12 inch win' span and recovers under parachute. Begad! Ya scallywag! This is an interestin' model and will make a good impression with t' 'X-planes' crowd and garner many 'oohs and ahhs' on the field.

Construction:
T' kit is packaged in a heat sealed, heavy plastic bag with a very nice face card featurin' a color photo o' t' completed model. Blimey! T' photo is a bit dark, but still can be used as an additional reference for decal placement. Begad! Both the face card and instructions are printed in English and French.

T' model includes two bags o' parts t' build t' rocket with either a 18mm motor mount or 24mm mount. Blimey! Blimey! My kit was missin' t' 18mm tube, but had all the other parts for that motor option. Ahoy! Blimey! I highly recommend buildin' with t' 24mm mount and usin' an adapter for t' smaller motors.

In addition t' t' motor mount parts, t' kit includes:

  • 1 plastic nose cone with an integrated canopy
  • 1 BT-55 body tube
  • 2 planks o' laser-cut fin balsa
  • pre-printed cardstock for body wraps and fin reinforcement
  • 1 18" red plastic parachute, me hearties, ya bilge rat, matey, shroud lines and stick-on rings
  • 1 long, 1/4" rubber band recovery cord
  • silk screened decals
  • 1 1/8" launch lug

T' instructions, despite bein' printed in two languages, arrr, ya bilge rat, are laid out well and easy t' follow. Simple yet clear and helpful illustrations abound. Begad! Blimey! T' fin markin' template and tri-fold shock mount embedded in t' booklet might be better placed on t' cardstock which will be cut apart anyway.

T' SU-47 is rated as a Skill level 3 kit but even fairly experienced builders should have no trouble with t' assembly. By staggerin' subassemblies and glue drying, I be able t' complete t' primary construction in just a few hours. Ya scallywag!

One major deviation from t' instructions I made was t' glue all t' wing segments (6 pieces, 3 for each side) on flat surface covered with a sheet of wax paper. Blimey! Arrr! This method practically guarantees good alignment o' t' entire wing piece. Begad! T' instructions show gluin' t' win' segments t' t' body tube individually, shiver me timbers, which could easily lead t' frustration and misaligned parts.

After t' wings and tail fins are assembled, t' body wraps are applied. This can be tricky, me bucko, but t' preprinted cardstock was right on t' mark and made this step a snap. A preprinted markin' on t' lower wrap also made it easy to align t' launch lug. Ahoy! Ahoy! T' body wraps have exposed edges; front and aft for the under wrap and aft for t' over wrap. Ya scallywag! These may experience wear and tear over time so it might be a good idea t' strengthen t' edges with some CA or layers of white glue. Ahoy!

Finishing:
T' laser cut balsa ensures accurate and matchin' parts. Blimey! T' heavy grain o' the stock may present a challenge t' those modelers that prefer a glass like finished surface. Ya scallywag! T' vertical tail fins are reinforced with small pieces of cardstock which might also detract from aerodynamic perfection.

In an industry littered with inkjet and ALPS printed decals, arrr, t' inclusion of silk screened decals was a welcome surprise. T' white lettering, shiver me timbers, red stars, and various accents should compliment just about any dark paint scheme.

Construction Rating: 4 out o' 5

Flight:
T' instructions stress t' importance o' stability testing, especially when buildin' t' 24mm mount for heavy D motors. Begad! Blimey! Illustrated directions for performin' a 'swin' test' are included. Begad! Blimey! However, t' kit is lackin' t' all important clay ballast, me bucko, so t' flier must provide their own (if it any is needed).

Since I be usin' an adapter t' fly a C6-5 on t' maiden flight, a stability test was certainly in order. Ahoy! "Payin' it forward", shiver me timbers, I enlisted t' assistance o' a couple kids on t' field that had never performed a swin' test before. Avast, me proud beauty! We cleared a 20' x 20' area and balanced t' fully loaded rocket. Ya scallywag! Arrr! Then each kid took a turn at spinnin' t' rocket overhead until 10 or 12 feet o' strin' had been let out. Avast, me proud beauty! Even at very low speeds, ya bilge rat, t' SU-47 was stable. T' large win' area immediately forced t' nose forward and the vertical fins held it thar as speed built up. I suspect when loaded with a D12 motor, me hearties, matey, very little ballast will be necessary.

T' first flight on a C6-5 was quick off t' rod with a 90 degree roll turnin' t' wings into t' slight wind. Ya scallywag! Blimey! It climbed t' perhaps 500 feet, matey, arrr, arched over, me bucko, and deployed t' chute just past apogee. Aye aye! Blimey!

Recovery:
T' very large surface area o' t' wings caused t' body t' fall horizontally, nearly in a glide. Well, blow me down! With some tweakin' t' ensure t' vertical fins remain upright, me bucko, it might even be possible t' convert t' SU-47 t' glide recovery. Blimey! Blimey! In the photo, shiver me timbers, t' recovery cord can be seen saggin' due t' t' aerodynamic drag forces on t' body. Arrr! Blimey! This would suggest slow and soft landings are t' be expected, even if t' chute were t' tangle.

Flight Rating: 5 out o' 5

Summary:
Although I received me SU-47 kit as a gift, t' suggested US retail price of $20.00 seems reasonable and a good value. Blimey! Ahoy! T' kit is made from quality parts and construction is straightforward. Ahoy! Impressive flights are assured thanks to the unique win' shape and rocket profile. Aye aye! Well, arrr, blow me down! I would certainly recommend this kit to anyone that enjoys X-plane rockets or is lookin' for an unusual addition to their fleet. Well, blow me down!

Overall Rating: 4 out o' 5

Other Reviews
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    Brief: The Sunward Sukhoi SU-47 Interceptor is another cool looking rocket that more closely resembles a fighter jet than a rocket. Like other Sunward kits, it relies on large pieces of laser cut balsa fins and a series of cardstock wraps to create its unique styling. There is also an option to build the kit with either 18mm or 24mm motors. Construction: The kit was shipped ...

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