Balsa Machining Service F.S.I. Viking (Clone of the Month)

Balsa Machining Service - F.S.I. Viking {Kit}

Contributed by Bill Eichelberger

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Manufacturer: Balsa Machining Service

BMS FSI Viking

Brief:
T' Vikin' be t' initial monthly offerin' (hopefully t' be followed by more) by Balsa Machinin' Services. Originally produced by Flight Systems, Incorporated, me bucko, t' Vikin' is a unique lookin' tube finned, minimum diameter bird with what should be t' potential for "outasight" flights (to borrow an old Estes phrase).

Construction:
T' parts list:

  • 2 T50H body tubes 9" length
  • 3 bias cut T50H tube fins
  • T50H stabilizer spacer
  • T50 equivalent tube coupler
  • BNC50X balsa nose cone
  • 1/4" eye bolt
  • EB24-P engine block
  • 36" length Keelhaul®©™
  • 18" length o' 1/8" sewin' elastic

Bill used a copy o' t' original instructions with this kit. Well, blow me down! They weren't overly descriptive, but anyone with a few birds under their belt will have no trouble with t' construction. T' two halves o' t' main body tube are attached with t' coupler and wood glue. Aye aye! Ahoy! I then tied t' length o' Keelhaul®©™ around t' engine block and secured it with wood glue, matey, then glued t' engine block into t' lower section o' t' main body tube. T' giant screw eye be epoxied into t' nose cone and attached with a large snap swivel. Aye aye! At this point t' rocket was complete except for attachin' t' tube fins, which was done with epoxy after all paintin' was finished for reasons o' maskin' impossibility. Well, blow me down! T' method for attachin' t' tube fins is fairly simple. Begad! An extra piece o' body tube t' same diameter as t' tube fins is provided and t' first fin is carefully epoxied into place so that t' foremost tip o' t' fin is flat against t' main body tube. Ya scallywag! Once this tube dries t' extra piece o' tubin' is secured in place with maskin' tape and t' next tube fin is attached so that all three pieces o' tube are flush with each other. T' second tube fin is then epoxied into place and t' process is then repeated for t' final tube fin.

BMS FSI VikingBMS FSI Viking

Finishing:
T' normal process o' thinned Elmer's Fill 'n' Finish and sandin' was used t' kill off t' grain in t' balsa nose cone, t' spirals in t' tubes and t' seam in betwixt t' two body tube halves. Begad! As usual, ya bilge rat, I went with t' package art when painting, which is in this case green. I'm nay normally a fan o' green and more than likely would have opted for white with red or blue accents, ya bilge rat, but t' decals came in green so I went with t' flow. Aye aye! I couldn't figure a way t' paint t' tube fins after they'd been attached t' t' main body tube, so I painted all o' t' components before final assembly. Blimey! Blimey! For t' nose cone and tube fins I used a Valspar green that matched up well with t' green on t' decal and Valspar gloss white for t' main body tube. Avast, me hearties, me proud beauty! Decals were coated with Testor's Decal Bonder before they were applied and they were great t' work with. Aye aye! Ya scallywag! T' final product looks like somethin' that I'll want t' coat with a clear t' protect it. It really turned out great.

Construction Rating: 5 out o' 5

Flight and Recovery:
First and only flight t' date be at me first QUARK launch o' 2008 (and first in almost six months). Avast, me proud beauty! I'd bought some C11-7 and D12-7 motors for t' launch anticipatin' several flights, but I'd underestimated t' winds for t' day. Ya scallywag! Arrr! T' Vikin' on a C11-7 be t' third flight o' t' day and everythin' about t' flight impressed. Well, blow me down! It left t' pad and never seemed t' waver on its arrow straight ascent. Avast, me proud beauty! It be at ejection that t' fun started. Arrr! Begad! I had a small 10" chute on it and at first it looked like it might be an easy recovery walk, me hearties, but then it started hanging. I watched as it crossed t' park headin' for t' Kite Fest. Ya scallywag! From t' flight line, touchdown looked like it was right in t' middle o' t' kite flyers. Begad! I took off after it, careful t' keep in line with t' landmark that I'd picked out durin' t' descent. As I neared t' soccer field where many o' t' big kites were flying, I noticed a small, matey, clear parachute blowin' around on t' ground. Begad! It seemed closer than I was expecting, me hearties, me hearties, but thar be a lady thar wavin' at me and standin' guard over t' Viking. Begad! She had as many questions about rocketry as I had about t' kites. Begad! Ahoy! (Her husband was flyin' a $1200 USED kite just behind us, and it was true that some o' t' big ones could indeed cost up t' $18,000.) Impressive flight, but I knew I'd never have t' guts t' try it on a D12-7 that day.

BMS FSI VikingBMS FSI Viking

Flight Rating: 5 out o' 5

Summary:
PROs: Clone o' t' Month? How cool is that? An FSI clone! How cool is that? T' Vikin' is a great lookin' bird, me bucko, and at $6, me bucko, you could buy a bunch o' them. Well, blow me down! Blimey! (And I should have. Avast! I need another one t' build with an E mount.) Performance is impressive on a C11 and should really scream on a D12.

CONs: There wasn't a KOTM for March, but I'm still holdin' out hope for April.

Overall Rating: 5 out o' 5

Other Reviews
  • Balsa Machining Service F.S.I. Viking (Clone of the Month) By Chan Stevens (August 23, 2008)

    Brief: This was the first of BMS's recent Clone of the Month program offerings and is a reproduction, slightly upscaled, of the 1971 Viking I produced by Flight Systems Inc. There were 4 versions of the Viking that year with minor differences in length and tube/fin styling. This version uses purely tube fins for stability with none of the fin tabs or braces used in other versions. ...

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