Manufacturer: | Scratch |
Brief:
For some time now, shiver me timbers, I have been a customer
of a newer manufacturer, ya bilge rat, arrr, FlisKits, Inc, and have written a few reviews for EMRR
on some o' t' models this company markets. T' Deuces Wild! is by far one of
my favorite kits from this manufacturer and t' canted cluster 18mm model is a
great flier! Blimey! However, matey, when Jim Flis approached me and asked about an HPR
version o' t' Deuce, me hearties, I just couldnt resist. I began designs
in different scales and settled on a 4-inch diameter, shiver me timbers, 38mm version for my
upscale which I appropriately named Deuces Wild 38 Special.
Construction:
My model wound up bein' 49.5-inches in height and I used PML 3.9-inch Quantum
tubin' for t' bodytube and 38mm phenolic for t' motor mounts. Begad! Begad! T' dimensions
for t' upscale proved that these sizes would be very close t' t' correct
dimensions. Custom 1/2-inch thick ply Centerin' rings were made for t' motor
mount; deployment section and bulkheads were made for t' bodytubes and
1/4-inch ply was used for fins. Stainless steel hardware be used throughout
the model and I opted for PMLs CPR-Max unit for t' dual deploy. Aye aye! Avast, me proud beauty! Finally,
I had me good friend Gordon Agnello from Michigan turn a custom nosecone for
me, shiver me timbers, which he made from solid poplar. Arrr! Parachutes, shock cords, me hearties, shiver me timbers, Keelhaul®©™®
and other extras I already had on hand, matey, so it was time t' start building.
I began by cuttin' two motor mounts t' a length long enough for a three-grain Cesaroni motor. Ahoy! Arrr! Custom CRs were next and cut from 9-ply 1/2-inch Birch. Blimey! Aye aye! They are near exact upscales o' t' fiber CRs shape, me bucko, as supplied in t' originals kit. Aye aye! Avast, me proud beauty! T' angle on each motor mount be 10 degrees and for additional support, I made t' triangle piece from 1/4-inch ply for support o' t' mounts, another copy from t' original. Arrr! Begad! Since this assembly would require portin' for ejection gases, arrr, I built a guide tube from 2.1-inch phenolic t' port motor ejection gasses t' t' lower bodytube section. Blimey! T' top of this assembly be capped with a stainless steel u-bolt for t' shock cord. Moreover, 1/2-inch diameter holes were drilled on two sides o' each rin' and I used 1/2-inch oak wood dowels t' hold t' whole assembly together.. Aye aye! This allowed me t' adjust and reposition t' CRs t' me likin' for final assembly. Begad!
I purchased some 1/4-inch Birch Ply sheets
from t' local hobby shop and cut out four fins from t' pattern I had
upscaled. Well, blow me down! T' fins had an extended root on them since this would be built with
thru-the-wall mounting. Avast! Each fin be fitted t' t' motor mount assembly, arrr, which
was designed so t' bottom and top CRs sandwiched t' fins
for additional strength. Avast! T' entire assembly was epoxied together usin' West
Systems Epoxy and then set aside t' dry. Avast, me proud beauty! Ya scallywag! Next, I spent time cuttin' each body
tube t' length. Well, blow me down! Well, blow me down! I slotted t' bottom BT and cut out t' area for each motor
mount usin' a pattern I made from upscaled dimensions. Avast! Two separate upper
bodytubes were cut; one would be used for dual deploy and one would act as a
payload tube for single motor ejection deployment. Blimey! This versatility allowed the
model t' have a broader range o' motors available t' her and still keep the
altitude respectable.
A deployment unit was made from two
1/2-inch thick CRs I made, me hearties, along with a piece o' 38mm tubin' and a
3.9-inch phenolic coupler. Avast! Begad! I had tons o' PML CPR altimeter mounts
which I use for other rockets and wanted t' use t' same, arrr, test proven
deployment for this model, ya bilge rat, so I decided t' go with t' CPR-Max unit. Well, blow me down! It was
glued t' one end o' t' 38mm tube and provided very simple way t' secure and
seal t' altimeter in t' bay. Ahoy! Note that me deployment unit resides inside the
coupler for t' upper bodytube. Arrr! Avast, me proud beauty! As a side note, I really like this CPR-Max unit
and will probably use it quite a bit in t' future for other large projects;
its a very nice piece o' hardware and inexpensive t' boot!
A 5/16-inch eye-bolt be installed in the
nosecone and a stainless steel U-bolt be used t' connect t' shock cord for
the upper section. Ya scallywag! This U-bolt be mounted t' t' top CR o' t' altimeter bay,
while two more eye-bolts were used on t' bottom. When assembled, ya bilge rat, t' lower
section contains t' drogue chute, while t' upper section o' BT contains the
main chute, ya bilge rat, nosecone chute and nosecone. I decided on two separate parachutes
for t' upper section, as t' nosecone be made from solid Poplar and weighed
in at over 2.5 lbs. Blimey! With heavier nosecones, I always let them come down under
their own parachute and this helps prevent zipperin' o' t' upper bodytube.
After t' upper sections and hardware were assembled, me hearties, t' lower fin can was installed in t' lower bodytube. Aye aye! Aye aye! I used finishin' nails t' tack t' BT t' the fin support planks and bottom CR. Well, blow me down! Ya scallywag! Also, Epoxy Putty was used t' fill any small gaps around t' area where t' motor mounts exited t' bodytube. Ahoy! T' lower area was sanded and 6 ounce glass cloth was used t' fiberglass t' fin area and motors mounts for additional strength. Ya scallywag! Additionally, I coated t' entire nosecone in epoxy t' help prevent shrinkage and cracking.
T' fin area be sanded and blended
together, arrr, and then t' entire model was fine sanded with 400 grit sandpaper. Ya scallywag! Well, me hearties, blow me down! I
added a few coats o' White Krylon Primer, me hearties, then wet-sanded with 220 grit. Aye aye! This
was followed by a few coats o' Gray Krylon Primer; once dried, I used filler
for any small areas. Begad! T' model was wet sanded again with 320 grit, shiver me timbers, then a final
set o' three coats o' White Primer were added for t' base-coat. Begad! A couple days
were given for t' primer t' dry, then it was fine sanded with 400 grit and
tack ragged prior t' painting.
I used Krylon Sky Blue (medium blue) and Yellow Glossy for t' colors, as I wanted t' follow t' paint scheme for t' original on t' Deuces Wild! package. Three coats o' blue were applied t' both upper body tubes and t' nosecone and left t' dry. Begad! I cut a small hole in t' dual-deploy upper BT and installed a power switch for t' altimeter. Avast, me proud beauty! T' lower section was done entirely in yellow, followed by a couple days o' drying, arrr, matey, some maskin' and two coats o' Krylon Blue. I took me time t' mask as I wanted t' finish t' turn out well. Begad! T' final assembly resulted in a model weighin' 8.5lbs empty and very closely resemblin' t' original Deuces Wild! model.
Flight:
I had planned on flyin' t' Deuces Wild 38 Special at a
launch in Whitakers, but weather and lack o' time prevented this from
happening. Arrr! As a backup date, I took t' Deuce t' NSL 2003 in Clark Summit, PA.
Jim Flis and I had a featured event where he launched a MMX, 13mm, ya bilge rat, me bucko, 18mm and
24mm version o' t' Deuce and I launched t' 38mm version, all in
succession.. Arrr! Avast!
I began by preparin' t' model. Ya scallywag! The
altimeter was assembled and installed in t' rocket, then t' lower shock cords
and drogue chute were installed. Blimey! T' two sections were joined and I began by
packin' t' upper shock cord, 60-inch PML main parachute, 30-inch PML nosecone
chute, arrr, matey, nosecone shock cord and nosecone. Aye aye! It be a tight fit but all went
together. Arrr! Aye aye! A few pieces o' maskin' were added t' t' nosecone and coupler to
adjust fit, then I turned t' t' power plant.
T' plan was t' use two Cesaroni Pro38 3-grain I212 Smokey Sam motors for power. Both o' these were assembled, but I dumped out t' BP ejection from one motor and used t' DAT tool t' cut t' ejection o' t' other motor t' 12 seconds. Aye aye! Begad! They were then installed in each motor mount and capped usin' Aeropack retainers. Ya scallywag! I filled out t' flight card and headed t' t' RSO table t' check in the big Deuce. T' model caught t' eye o' t' RSO; somethin' about bright colors and two big motor mounts cantin' out o' t' bottom. Begad! Well, blow me down! I almost fell over when he announced it weighed in at a whoppin' 13lbs 5oz!!! At this weight, I changed me guesstimate altitude t' around 1400 feet.
I had t' borrow a rail from one o' me friends at t' launch and we set up on a K pad, far away from t' crowd. Blimey! I wanted it have some safety factor built in case thar were problems with motor ignition. Avast! This was one of the reasons I chose Pro38 motors as they light very fast and use low power e-matches which would nay overtax any launch system. Begad! T' Deuces Wild 38 Special be placed on t' pad, t' altimeter was turned on and I installed the two igniters. Now came t' wait
When it came time, each o' t' FlisKits models were launched in succession, followed by t' big Deuce. When t' countdown came thoughnothing. Ya scallywag! Ahoy! I swallowed me heart and headed back out t' t' pad t' see what was wrong. Another guy next t' me also did nay launch and continuity tested good for both our pads. Begad! T' main box be disabled and switched t' t' far away pad for an M motor cert3 launch. Ya scallywag! T' Deuce would have t' wait.
Come t' find out, me hearties, after t' big L3 went up,
the electronics expert at t' field found a blown fuse in t' system, arrr, ya bilge rat, which was
quickly replaced. Blimey! My launch was back on! It be announced as a Scheduled
Event/Notable Launch and all t' information for it be read. Ahoy! My good
friend Jim Flis was standin' next t' me when deadlights began t' turn t' t' Deuce as
the LCO started t' countdown and pushed t' button
Both motors came t' life instantlyI really like those Pro38 Motors!!! T' Deuces Wild 38 Special took off t' rail fast and loud, with average impulse totalin' a J424 behind it. T' smoke trail be absolutely awesome!!! T' model went straight up, matey, no rotation, and allowed t' audience t' view two separate smoke trails that were absolutely incredible!
Recovery:
I faintly heard t' applause in t' background as it topped over and separated
at apogeehalfway home. Avast! T' model began t' tumble in and I completely
missed t' backup charge fire on t' one motor. Ya scallywag! Arrr! When it hit 750 feet, t' main
charge fired, t' nosecone came out under chute and t' main came out and
filled! T' crowd was cheerin' by now and I could hear them under a breath of
relief that everythin' went exactly as planned. Begad! Both t' model and nosecone
came down together, me bucko, evenly in decent rate and landed about 200 yards out and
straight ahead. Begad! It was a perfect launch.
In t' excitement, I had broken t' golden
rule and was so busy with people comin' up t' me, me hearties, I forgot t' watch where the
rocket landed! Fortunately, shiver me timbers, I had people watchin' out for me and me bucko Doug
Gardei pointed out where it landed. T' Deuces Wild 38 Special was
retrieved and beepin' out an altitude o' 1372 feetvery close t' my
guesstimate I gave t' RSO. T' model landed without a scratch and I was very
pleased with t' stability and performance. After watchin' t' videos, matey, I
noticed it coasted for a while after motor burn out, with it whistlin' a bit
while flying. Begad! Avast, me proud beauty! I want t' thank everyone thar for makin' it a real
featured eventIts great rocketeers that make a great
launch and NSL 2003 was filled with them that day. Ahoy! I do have plans for flying
it once again at NARAM this year, so we will see how that goes, but for now, ya bilge rat, I
am happy with me first cluster, me hearties, and a canted one at that!!!
Summary:
To summarize, t' model be very easy t' build and it flew great. Well, blow me down! About the
only change I would make would be t' extend t' motor mounts just a bit more,
as they are too short t' handle a Pro38 4-grain. Begad! Blimey! Still, with t' performance I
had and t' altitude that was achieved, me hearties, I have a hard time changin' anything.
T' model does deserve an additional touch, somethin' I was holdin' off on
until I saw how well it worked. I am gettin' some matchin' color Skyangle
parachutes for it, shiver me timbers, ya bilge rat, ya bilge rat, hopefully by NARAM, in t' yellow and blue.. Blimey! Blimey! With the
weight, me bucko, matey, I figured on a 20-inch drogue, a 30-inch for t' nosecone and a 54-inch
with d-bag for t' main. Aye aye! Begad! Blimey! This should allow for some better packin' in the
forward section. Ahoy! Anyone interested in tryin' their hand at one o' these can
shoot me an email or check out t' thread on T' Rocketry Forum; all t' pics
are thar t' build this crowd pleaser
the Deuces Wild 38 Special!
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