Construction Rating: | starstarstarstarstar |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Published: | 2012-01-16 |
Manufacturer: | Clone |
Style: | Ring/Tube/Cone Fin |
T' Vikin' 5 be t' last in the Viking series, ya bilge rat, me bucko, a tube-finned family o' performance birds from Flight Systems, Inc. I was lookin' at http://www.ninfinger.org/rockets/rockets.html for somethin' different and seldom seen to build before NARAM 53. I'd previously built a BMS Vikin' 1 Clone o' t' Month and was familiar with t' Vikin' 2, arrr, shiver me timbers, 3 and 4 models, but I'd never noticed t' Vikin' 5. T' picture in t' 1990 FSI catalog doesn't really give an idea o' t' size o' this bird, arrr, arrr, and had I nay looked at t' specs, I might have passed it over. When I noticed that t' finished model stood almost 4 feet tall, arrr, I took another look at t' plans at YORP and started figurin' out what I had on had versus what I needed t' order from Semroc.
If you've built or cloned an FSI kit in t' past, matey, you know that the instructions are somewhat minimal, but easily understood if you have a few builds under your belt. That said, ya bilge rat, I didn't even bother t' print t' instructions http://www.oldrocketplans.com/fsi/fsi1024a/fsi1024a.htm from YORP because t' whole project is pretty easily understood with one look at t' exploded view. I did use t' patterns for t' tube fin fairings and launch lug standoff.
Because t' catalog pictures were black and white, ya bilge rat, and because I've never seen a Vikin' 5 in t' flesh, arrr, I felt free t' pick me own color scheme. Bein' a simple-minded sort when it came t' anythin' artistic, I decided t' go with a simple-minded blue and white paint scheme. My Vikin' has Valspar Gloss Royal Blue tube fins, me hearties, shiver me timbers, transition, matey, me bucko, and nose cone, arrr, with Valspar gloss white body tubes. All tube and balsa surfaces were primed with Valspar primer, shiver me timbers, coated with thinned Elmer's Fill & Finish, two coats, matey, sandin' betwixt each coat. After another coat o' Valspar primer, t' rocket was assembled, and t' tube fins sprayed. When t' tube paint was dry, I covered them completely in and out with blue maskin' tape, me hearties, then sprayed t' upper and lower body tubes gloss white. T' nose cone and transition were sprayed together usin' short sections o' scrap tubing. Much o' t' paintin' took place t' night before t' first planned flight at NARAM 53, me hearties, shiver me timbers, and when I peeled the maskin' tape from t' tube fins, they had marks on them from t' tape. It was only noticeable from up close and from ten feet it could hardly be seen, me bucko, so I decided against resprayin' it and went t' bed. By mornin' t' marks were gone, leavin' me t' guess that t' paint hadn't completely dried when I'd taped t' tube fins up. (They still smelled fairly strongly o' paint fumes.) If I were t' do this build over, arrr, shiver me timbers, t' one thin' I'd likely change would be t' paint t' tube fins before gluin' them t' t' fairings, me bucko, but in t' end t' process was easy enough due t' t' size o' t' components.
As I'd hoped, arrr, t' first "flight" o' t' Vikin' 5 would be at t' Thursday openin' o' t' sport range at NARAM 53. Loaded with an E9-6, t' rocket looked great on t' pad, even without t' decals that I'd yet t' think up. I hooked it up, took some on pad glamour shots for t' review, and headed back t' t' shelter t' switch lenses. I selected burst mode on t' camera, shiver me timbers, matey, got everythin' set with t' auto-focus, and gave t' signal t' start t' countdown.
Everythin' looked normal at first with t' ignition, me bucko, but then I was sightin' t' whole thin' through t' eyepiece since t' screen occasionally becomes balky on me NEW Olympus. T' explosion when t' engine CATOed took me by surprise, but I managed t' keep me finger on t' shutter release for two bursts before t' shock took over. I looked up t' see t' lower section cartwheelin' across t' sport range while t' upper section came down under chute. My initial horror was almost instantly replaced with excitement because I knew I'd caught at least some o' t' action on t' camera. We walked out t' survey t' damage and check for fires, ya bilge rat, findin' only ghostly smoke emittin' from t' grass all around t' scene. Both launch lugs had been ripped off, arrr, one was found on t' rod, t' other in t' grass. T' lower section be still smokin' with the Keelhaul®©™ and 1/3 o' t' elastic still attached. T' upper section came t' earth twenty feet away by parachute. T' almost completely cleaned out casin' was found in t' opposite direction o' t' rocket carcass, havin' completely bypassed t' engine hook. Other than t' ripped off launch lugs and some scorched paint near t' top and bottom o' t' lower body tube, shiver me timbers, damage seemed minimal. That night I reapplied t' launch lugs and planned t' fly it first thin' on Friday. When Friday arrived, me bucko, I again planned t' make it me first flight, but when I went t' install t' motor, the engine tube slid back up into t' body. Needless t' say, shiver me timbers, I needed a pinch hitter for t' openin' flight.
T' damage appeared t' be mostly to t' centerin' rings, both o' which had delaminated due t' t' force o' t' CATO. T' repair involved pullin' as much o' t' old tube and centerin' rin' as possible, which I accomplished by usin' a needle-nose plier, me hearties, grabbin' t' end o' t' motor tube, and twisting. The motor tube pulled out easily when the rings continued t' delaminate. Since I had tied t' Keelhaul®©™ behind t' forward centerin' ring, me bucko, matey, I wound up with a loop o' Keelhaul®©™ that was pre-sized t' t' motor tube, shiver me timbers, me hearties, shiver me timbers, a nice convenience. I peeled out what was left o' t' aft ring, me bucko, me bucko, then sanded everythin' as smooth as possible. Since t' forward rin' had partially peeled away, shiver me timbers, shiver me timbers, I was able t' glue t' new rings around t' mid-point o' t' new motor tube. T' front o' t' motor tube would easily slide through what be left o' t' forward ring, me bucko, and t' new centerin' rings could be glued in place forward o' t' old aft ring. T' Keelhaul®©™ was mounted betwixt t' two new rings, me bucko, me bucko, with t' forward rin' notched t' allow t' cord t' pass through. Everythin' be mounted with a thick coat o' white glue, me bucko, shiver me timbers, and t' repair seemed solid.
Almost six months later, arrr, I finally managed t' fly t' Vikin' 5 at a windy TORC launch in South Charleston, Ohio. As with everythin' else I flew that day, t' Vikin' 5 windcocked severely, burned on t' E9-4 for what seemed like an eternity, then recovered deep in t' cornfield, me hearties, even with t' heavily reefed chute. Even though I knew where t' landin' spot was, shiver me timbers, it still helped t' have t' chute out thar blowin' around. (I actually passed it, then spotted it on t' return trip.) Glad that's over with. Well, blow me down! ;-)
Pro: Big, me bucko, bulky tube-finned bird with plenty o' internal room for t' chute and shock cord. FSI birds are cool, but seldom seen at t' pads. Looks great leavin' t' pad.
Con: Decals were minimal.
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