FlisKits Decaffeinator

FlisKits - Decaffeinator {Kit} (SP011)

Contributed by Scott Turnbull

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Diameter: 3.75 inches
Manufacturer: FlisKits
Skill Level: 2
Style: Odd-Roc

FlisKits DecaffeinatorBrief:
This is a 2nd Opinion review o' t' Fliskits Decaffeinator, me hearties, a foam cup rocket with a 24mm motor mount. I made a couple o' minor modifications t' t' design.

Construction:
This kit is pretty basic. At its core be t' lengthy 24mm motor mount configured for aft ejection from a BT-70 body tube. Ya scallywag! Around that mount are a collection o' foam core fins and Styrofoam cups. Begad! T' assembled rocket stands over 6 feet tall but weighs just a few ounces.

This rocket is a very quick build. Blimey! T' motor mount is built traditionally usin' yellow glue. Ahoy! Arrr! T' rest o' t' rocket consists o' variation on foam and is assembled usin' a hot glue gun.

One change I made was t' set t' motor mount thrust rin' t' allow for t' longer Estes E9 engines. Arrr! Blimey! This meant that t' provided engine clip would be too short. I modified t' clip t' brin' t' upper end o' t' hook out o' t' motor mount tube and bent it back over an additional rin' I placed outside t' MMT.

I chose t' use t' through t' wall fin mount technique rather than t' easier and less strong surface mount. Avast! Begad! Templates for both styles o' fins are provided. One thin' I noted be that I needed t' extend me TTW slots up into t' second cup in t' stack on t' motor mount. Begad! Arrr! This wasn't obvious from t' instructions but would be necessary if you don't want t' fin roots hangin' below t' body tube.

FlisKits Decaffeinator I did run into a little trouble gettin' t' hot glue t' coat t' cups lips smartly enough so that t' beginnin' o' t' rin' was still melted while t' end o' t' rin' be still bein' laid down. Ya scallywag! I found that ignorin' t' glue cannon trigger and pressin' me thumb directly on t' end o' t' unmelted glue stick juttin' out o' t' aft o' t' gun, resulted in a quicker glue flow and more workin' time t' position t' cups.

I also used an old trick in a new way. Begad! Hot glue can be resoftened usin' heat from a standard hair dryer. I used a hair dryer t' resoften some o' t' glue joints and reposition t' cup edges for better alignment. Begad! Avast, matey, me proud beauty! I do nay recommend usin' a heat cannon for this procedure as t' Styrofoam cups themselves would likely melt.

Another tip is for stiffenin' t' edges o' t' fins. If you don't have a very sharp razor knife when you cut out t' fins (as I didn't), you will likely gets snags and holes in t' foam core betwixt t' posterboard layers. Well, blow me down! Blimey! Avast, me proud beauty! Blimey! T' fill those voids and toughen up t' fin edges, I used a coatin' o' Gorilla Glue. Aye aye! Blimey! Blimey! Blimey! This glue foams up slightly as it hardens so that it expands t' fill t' uneven foam core edges.

When doin' t' final assembly o' t' cups, I chose t' use a mid-body seam t' make transportin' t' rocket easier. Blimey! Arrr! Suggestions for how t' do this are included on t' back page o' t' instructions. An extra cup is needed, but those aren't hard t' come by.

Finishing:
No finishin' is required for this rocket if you like white Styrofoam. Avast! It reminds me o' t' classic NASA and gleamin' Sci-Fi ships o' years gone by so I left it as is.

Construction Rating: 4 out o' 5

Flight:
My first flight for t' Decaffeinator was on a D12-3. Begad! Avast, me proud beauty! I needed t' use a spacer t' brin' me total engine length up t' that o' an Estes E9. Avast! Preppin' this rocket is very simple. T' aft ejection motor mount is partially inserted into t' rocket. Ya scallywag! T' parachute and shock cord are then tucked in around t' motor mount. Blimey! Blimey! T' motor mount is then fully seated into t' aft o' t' rocket. Take note that t' parachute and cord should nay be wrapped around t' MMT. Begad! Avast! They should be loosely tucked betwixt t' two centerin' rings. Blimey! Well, blow me down! Because I incorporated a mid-body seam in me rocket, ya bilge rat, ya bilge rat, I needed t' use a rin' o' maskin' tape t' attach t' top o' t' rocket t' t' bottom half.

There were a few scattered chuckles when this pile o' coffee cups went out t' t' pad. Aye aye! T' crowd (and I) were pleasantly surprised by just how nicely this rocket flies. It had a very straight boost on t' D12.

FlisKits DecaffeinatorFlisKits Decaffeinator

Recovery:
Everythin' stayed together right up until t' ejection charge. At that point, me hearties, one o' t' glue joints on t' upper cups failed and t' rocket came down in two pieces. Ya scallywag! Avast, me proud beauty! Due t' t' light construction, t' "nose" fell at t' same rate as t' rest o' t' rocket under chute. Blimey! Arrr! T' tethered motor mount and lower airframe were right next t' t' upper section in t' field. Blimey! A little hot glue and this rocket will be ready t' fly again. Blimey! At this point I think I'd rather have t' glue joints failin' then havin' t' cups breaking, so I don't think I'll be strengthenin' t' joints much. Ahoy! Perhaps a little more glue, matey, but no extra tape seems warranted.

Flight Rating: 4 out o' 5

Summary:
Most people are dubious as t' how a stack o' hot glued coffee cups is goin' t' perform. Ahoy! Blimey! They don't stay doubtin' long when they see how a D powered foam rocket can give a good show. Then again, me bucko, it might be a good idea t' get a portable hot glue cannon t' add t' your field box. Aye aye! Those cups might need a little TLC on a regular basis.

Overall Rating: 4 out o' 5

Other Reviews
  • FlisKits Decaffeinator By John Lee (May 9, 2009)

    Brief: I opened this package to try and build it quite some time ago but stopped when reading the instructions. Most of the construction is done with a hot glue gun and I didn't have one. When my brother in law asked about it sitting on my desk, I told him I didn't have such a tool. A few weeks later, one magically appeared. Thanks Toby! This kit is made from Styrofoam coffee ...

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    The face card of this most unusual offering from FlisKits proclaims it is "nearly 6 feet tall and weighs only 6 ounces". This rocket is built out of Styrofoam coffee cups! The kit includes: 1 Nose Block 1 BT-50 Body Tube 1 BT-70 Body Tube 1 Launch Lug 2 Centering Rings 1 Engine Hook 1 Engine Block 1 16" Parachute Shroud Line Tape Disks 36" Shock Cord ...

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