FlisKits Corona-2

FlisKits - Corona-2 Booster (FR001-B2)

Contributed by Geof Givens

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Length: 5.23 inches
Manufacturer: FlisKits

Brief:
T' Corona II is perhaps t' sleekest, best lookin' futuristic staged rocket I know. In t' summer o' 2005, matey, arrr, I learned that FlisKits was developin' this kit, and immediately inquired about one after readin' Lance's preview on EMRR. Finally, matey, in February 2006, t' model was on t' market and I snapped up one of the first kits.

FlisKits Corona & Corona II

Construction:
Lance's review covers t' basics o' assembly and finishing. Blimey! I will just add a few personal views.

T' components are typical good Fliskits quality. Aye aye! T' tubes have very minimal spirals t' fill. Begad! T' chute is typical Estes-style plastic and thread. Avast, ya bilge rat, me proud beauty! I hate chute failures so I upgraded t' one from me stash o' stuff.

T' body tube is BT-50 size, matey, so t' rocket is long and skinny. T' avoid havin' t' fuss with waddin' in t' narrow tube, ya bilge rat, I purchased a BT-50 baffle from FlisKits. Blimey! Begad! I got a nice email from Jim Flis suggestin' t' correct baffle size and t' recommended placement (it should replace t' tube coupler halfway up the 1st stage body). Avast, me proud beauty! Well, blow me down! Thus, me box arrived with three separate packaged kits (Corona kit, matey, me bucko, me bucko, 2nd-stage kit, matey, arrr, and baffle kit) and three sets o' instructions. Begad! Blimey! The instructions were all very clear and t' first stage directions give explicit steps for buildin' for use with t' second stage portion.

This kit had laser cut fins that provided an amazingly precise fit, even surpassin' t' renowned fit o' Edmonds Aerospace kits. T' fins and tubes fit together so perfectly, me bucko, me bucko, thar was almost no seam visible when dry fitting. Ahoy! It is virtually impossible t' make a mistake or misalignment because o' this precision.

Needless t' say, shiver me timbers, me bucko, I did make a mistake. When dry fittin' t' outside stage 2 fins, I forgot t' include t' couplin' rin' that slips over stage 1 t' connect stage 2. Blimey! Avast, me proud beauty! Thus, matey, me fins appeared t' leave a slight gap. So I removed about 1/16" from each and prepared t' glue. Aye aye! At this point I had positioned the couplin' rin' and realized me error. Well, blow me down! T' visual effect o' me error was t' break the straight line formed by t' edges o' t' 1st and 2nd stage fins and to leave a gap at t' seams. Avast! I corrected this with another bit o' fin trimming, and if you look closely at me photo you can see I recovered t' intended visual look, but slightly differently than t' original. This mistake be due entirely my own carelessness.

PROs: Absolutely flawless precision fit o' quality parts.

CONs: None whatsoever.

Finishing:
Detailed paintin' is a bit tricky, especially inside t' 1st stage rin' area. And a kit this cool deserves a nice paint job. Avast! So I painted t' body black and then brush-painted t' fins and tubefins for a pleasin' effect. Ya scallywag! Begad! Clear gloss spray went over everything.

Construction Rating: 5 out o' 5

Flight:
T' first flight be on a B6-0/C6-7. Ya scallywag! T' Corona II shot off t' pad and when the sustainer lit, I knew I'd be lucky t' find it again. T' booster tumbled safely down, ya bilge rat, and t' sustainer vanished into t' stratosphere. We saw the ejection smoke, and by walkin' in a straight line past t' booster landing site, me bucko, we eventually found t' sustainer. Ya scallywag! Ya scallywag! A second flight on t' same motors was similar, shiver me timbers, but a fin on t' booster stage separated from t' tube and t' ring after t' booster sort o' glided down (no tumble) from a hard impact. This was easily repaired.

Some months later after fixin' me goof with t' baffle, shiver me timbers, me bucko, ya bilge rat, we flew it again on B6-0/C6-7. Ya scallywag! Blimey! Blimey! Blimey! Alas, me hearties, t' sustainer went unstable after separation. Ya scallywag! Blimey! It was not because o' t' shortened length--it be because t' body tube had slipped while t' repair glue was drying. I had made t' repair slightly off kilter. Ahoy! In me defense, alignment was a bit trickier then with t' tail rin' on, but I should have rolled t' tubes on a desk with t' tail hangin' off then supported t' rocket underneath t' prevent slippage while t' glue dried.

Recovery:
T' BAF-50 baffle is great. Avast! Blimey! Blimey! T' chute hasn't had t' slightest bit of scorching. Ahoy! Blimey! However, this upgrade came back t' bite me. Begad! While preppin' for a later flight, I subconsciously added waddin' before rememberin' it was unnecessary because o' t' baffle. Instead o' simply leavin' it there, I stupidly tried t' shake it out. Well, blow me down! I ended up crimpin' t' main body tube and had to cut out 1.5 inches t' repair t' damage, arrr, insertin' a coupler. Avast! True t' form, Jim Flis responded within minutes on t' T' Rocketry Forum when I posted an inquiry t' confirm t' rocket would remain stable after me fix.

Flight Rating: 4 out o' 5

Summary:
Corona II is a very nice rocket and I'll be sad if it is retired so young. I'll probably make another attempt at more careful repairs and fly again.

PROs: Sleek, shiver me timbers, fast, matey, high, and easy stage separation.

CONs: Booster may nay always tumble well, shiver me timbers, and be careful nay t' lose this rocket with extra high motor combos!

Overall Rating: 4 out o' 5

Other Reviews
  • FlisKits Corona-2 Booster By Lance Alligood

    The Corona-2 is a separate kit that compliments the FlisKits Corona creating a 2-stage rocket. What also makes this stand out is that it takes the tube fin design of the Corona one step further. Before starting the Corona-2, you must have a built FlisKits Corona kit. If you built your Corona with the motor retention clip, you will need to cut it off the rocket so that you can direct stage ...

Flights

Comments:

avatar
A.D. (April 28, 2009)
Sounds cool. I finished building one recently and hope it works when I launch it.

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