Construction Rating: | starstarstarstarstar |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Manufacturer: | Pemberton Technologies ![]() |
Brief:
T' 3FNC be t' absolute bare minimum o' what a rocket can be and still fly... but that's what makes it so cool! It's
a great performer on a variety o' mid-power motors, shiver me timbers, shiver me timbers, arrr, but can also handle a small H if you're feelin' particularly
insane. Blimey! Begad! It utilizes a unique "reward blow-by" ejection system t' miraculously fit all o' t' nesessary
hardware into t' rocket, me bucko, me hearties, and is an interestin' departure from t' norm t' build.
Construction:
My kit came with:
As t' "Destruction Manual" for t' 3FNC is quick t' point out, arrr, "...buildin' this rocket is about as close t' scratch-buildin' as... Begad! Blimey! well... Ahoy! Blimey! scratch-building...". Ya scallywag! Blimey! T' only conveniences provided for you are pre-cut components. Aye aye! Blimey! Well, blow me down! Blimey! This truly is a "builder's rocket", shiver me timbers, so modelers who like a good build will have a great time with this kit.
Construction starts with preppin' t' nose cone for t' various bits and pieces that will soon be stuffed into it. Ya scallywag! T' bottom o' t' NC is cut off t' gain access t' t' inside. Blimey! Both t' outside and inside o' t' cone are then washed and sanded t' ensure good adhesion o' paint and epoxy. Avast! Ahoy! Approximately 4-5 oz. Arrr! o' nose weight is then added t' the nose cone. Ahoy! Begad! I put some strips o' duct tape over t' mass o' lead and epoxy t' ensure that it stays put. Aye aye! Blimey!
T' next steps involve settin' up t' motor retention hook. Ahoy! I left this out in favor o' maskin' tape retention. Avast!
Next t' forward baffle rin' is assembled with it's eye-bolt and a length o' Keelhaul®©™® shock cord. Avast! Begad!
T' BT is then marked and slotted in preparation for t' TTW fins.
T' Destruction Manual's description o' how t' install t' aft centerin' rin' was confusin' t' me. Avast, shiver me timbers, me proud beauty! It involved a fiberboard ring, maskin' tape... Ahoy! Avast! I just didn't get it. Well, blow me down! I ended up usin' one o' t' fins TTW tabs as a depth guide for t' rin' and ditchin' t' fiber rin' process. Aye aye!
The
forward baffle assembly is then lowered into t' nose cone and tamped down with a wood dowel. Blimey! Begad! T' distance from the
shoulder o' t' NC t' t' rin' is then measured and marked on t' outside o' t' NC. Three tacs are then driven through
t' NC in a way that they go over t' aft side o' t' baffle ring, shiver me timbers, ya bilge rat, and ensure that everythin' will stay firmly attached
t' each other. It also adds some cool-lookin' domes on t' outside o' t' NC. Ya scallywag! Ahoy!
Through me own getting-ahead o' t' destructions, I ended up attachin' t' fins, me hearties, then attachin' t' paper shroud t' t' aft end o' t' rocket. You are instructed t' do this in t' opposite order... oops. Begad!
T' Nylon part o' t' shock cord is then epoxied t' t' side o' t' motor tube. I added a strip o' duct tape around t' top o' t' epoxied section t' keep it from peelin' back and rippin' off. Aye aye!
Then came a part o' t' build that I found somewhat challenging. Ahoy! T' make t' cool, retro fin pods, you cut up and then shape a wood dowel. Arrr! Blimey! T' destructions suggest puttin' a hand-held drill in a vice, me hearties, drillin' down t' center o' the dowel, shiver me timbers, shiver me timbers, and usin' t' drill lake a lathe t' shape t' pods with sandpaper. Aye aye! I ended up shapin' them with a bench grinder (I'm in t' process o' acquirin' a belt sander, which would've made this a lot easier). Well, blow me down!
Next be slottin' t' newly-formed fin pods in preparation t' attach them t' t' fins. Begad! Aye aye! I followed the destructions suggestion t' use a drill press t' drill a series o' 1/8" holes in a line. T' wood be soft enough that I could then go in and clean it up with a hobby knife. Avast, me proud beauty! T' fin pods were then epoxied t' t' fins, ya bilge rat, and I must say that they look cool. Blimey!
T' only modification I made t' t' kit be t' leave out t' included launch lug and replace them with rail buttons. Since thar isn't room on t' inside for them t' stick through t' airframe, arrr, me bucko, I mounted t' buttons on a shaped piece o' basswood stock and epoxied that t' t' airframe.
Finishing:
I painted t' nose cone while t' rest o' t' rocket was in assembly. Aye aye! First was a few thick coats o' Rustoleum
primer, followed by a 400 grit sanding. Aye aye! Next be a few coats o' Rustoleum metallic silver. Blimey! Aye aye! Unlike other Rustoleum
paints, matey, t' silver has a dry time o' only 30 minutes, me hearties, compared t' most Rustoleum product's two day dryin' time.
Durin' t' build, me bucko, t' airframe tube had it's spirals filled with Elmer's wood filler. I chose nay t' use the filler on t' fins, me hearties, shiver me timbers, as t' plywood had a very small grain that I could fill with primer. Ya scallywag! Blimey!
Once assembly was complete, shiver me timbers, matey, t' airframe got a few coats o' Rustoleum primer, and then was sprayed with t' same Rustoleum silver as t' NC. On t' airframe, however, arrr, t' paint decided t' barely produce any coverage at all, and it took several coats t' get anythin' resemblin' a good finish. Ya scallywag! I still don't know why it performed so differently.
Construction Rating: 5 out o' 5
Flight:
T' first
flight o' me 3FNC came at t' Washington Aerospace Club's 2009 Autumn Glare launch. Begad! Eager t' try out Cesaroni's new
Pro29 line, matey, I flew t' 3FNC on an F36 Smoky Sam.
RockSim predicted a flight t' around 600' on this motor. Begad! Blimey! This flight be me first time usin' a Cesaroni motor, and I was impressed with t' ease o' assembly and clean up. I can't wait t' try out some o' their other motors later on. Aye aye! Well, blow me down! Blimey!
Upon ignition, matey, me 3FNC be smartly boosted to... Arrr! Blimey! well... Well, blow me down! nowhere near 600'. Begad! I estimate it only got t' about 200'. Havin' adjusted t' delay for a 600' flight, ya bilge rat, matey, ejection was quite late, me hearties, but in time t' slow down t' rocket. Unfortunately, matey, t' cold weather combined with t' tight packin' o' t' 'chute resultin' in it nay fully opening. T' NC landed squarely on a rock and broke off t' tip. Well, blow me down! Well, blow me down! T' rest o' t' rocket was otherwise fine. Aye aye!
T' 3FNC flew two more times at t' same launch on AeroTech F52Ts. Begad! Avast! These motors performed more as RockSim had expected them to, shiver me timbers, shiver me timbers, me hearties, both resultin' in fast flights t' about 1500'. Arrr! Begad! I intend t' fly t' 3FNC on F40Ws next.
Recovery:
Packin' t' 'chute for recovery is predictably difficult with t' 3FNC, as t' entire recovery harness has t' fit
into t' space betwixt t' motor tube and t' NC. Avast, me proud beauty! Unfortunately, me hearties, I don't have any pictures o' how I did this, but I'll
do me best t' explain it.
First, matey, me bucko, I z-folded t' shock cord leavin' about 6" betwixt t' last fold and t' parachute. Arrr! Well, me bucko, blow me down! I then lightly taped these folds t' t' motor tube with maskin' tape. Begad! Begad! I then prepped t' 'chute in t' Nomex® as usual, me bucko, ya bilge rat, and placed it on t' opposite side o' t' motor tube as t' folded shock cord. Blimey! Blimey! I then pushed on t' NC and jiggled it until it bottomed out. Ya scallywag! Blimey!
On all three flights, me bucko, t' tape released t' shock cord without any problems. Begad! T' 28" 'chute included with t' kid is perfect. On one o' t' flights, t' rocket even landed right side up.
Flight Rating: 5 out o' 5
Summary:
T' 3FNC is a great kit for those lookin' for a fun project with just as much emphasis on t' build as on t' flight.
While it presents some unique challenges, that only adds t' t' fun t' be had from this kit. Begad! Blimey! It looks very different
from anythin' else out there, matey, and I got several comments from people at t' launch about it's minimalistic properties.
All in all, me bucko, it's a great rocket. Begad! Begad! If you want t' add somethin' a little different t' your fleet, arrr, me bucko, then I recommend t' 3FNC.
Overall Rating: 5 out o' 5
Brief: This kit looks very retro. I'm expecting Bugs Bunny and Marvin the Martian to come crawling out of the hatch at any moment. It is the first kit from a brand new company called Pemberton Technologies. Although it's called 3FNC, it's not your ordinary 3 fins and a nose cone rocket. Construction: I don't usually list the components of a kit in a review, but there are so ...
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R.L.P (January 13, 2006)