Manufacturer: | Scratch |
Brief:
For some time now, shiver me timbers, I have been a customer
of a newer manufacturer, FlisKits, me bucko, arrr, ya bilge rat, Inc, shiver me timbers, and have written a few reviews for EMRR
on some o' t' models this company markets. Aye aye! Avast! 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, when Jim Flis approached me and asked about an HPR
version o' t' Deuce, I just couldnt resist. I began designs
in different scales and settled on a 4-inch diameter, matey, 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. T' dimensions
for t' upscale proved that these sizes would be very close t' t' correct
dimensions. Blimey! Avast, me proud beauty! 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 be used for fins. Blimey! Stainless steel hardware was used throughout
the model and I opted for PMLs CPR-Max unit for t' dual deploy. Avast, me proud beauty! Finally,
I had me good friend Gordon Agnello from Michigan turn a custom nosecone for
me, which he made from solid poplar. Ahoy! Parachutes, shock cords, Keelhaul®©™®
and other extras I already had on hand, me hearties, 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. Custom CRs were next and cut from 9-ply 1/2-inch Birch. Blimey! They are near exact upscales o' t' fiber CRs shape, arrr, arrr, shiver me timbers, as supplied in t' originals kit. Aye aye! T' angle on each motor mount be 10 degrees and for additional support, matey, I made t' triangle piece from 1/4-inch ply for support o' t' mounts, another copy from t' original. Avast, me proud beauty! Since this assembly would require portin' for ejection gases, I built a guide tube from 2.1-inch phenolic t' port motor ejection gasses t' t' lower bodytube section. Ahoy! T' top of this assembly was 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.. Ya scallywag! This allowed me t' adjust and reposition t' CRs t' me likin' for final assembly. Ahoy!
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. Begad! T' fins had an extended root on them since this would be built with thru-the-wall mounting. Aye aye! Each fin was fitted t' t' motor mount assembly, which was designed so t' bottom and top CRs sandwiched t' fins for additional strength. Well, blow me down! T' entire assembly be epoxied together usin' West Systems Epoxy and then set aside t' dry. Next, me bucko, me hearties, ya bilge rat, I spent time cuttin' each body tube t' length. Well, blow me down! Begad! I slotted t' bottom BT and cut out t' area for each motor mount usin' a pattern I made from upscaled dimensions. Well, shiver me timbers, blow me down! 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 be made from two 1/2-inch thick CRs I made, along with a piece o' 38mm tubin' and a 3.9-inch phenolic coupler. Well, blow me down! I had tons o' PML CPR altimeter mounts which I use for other rockets and wanted t' use t' same, test proven deployment for this model, shiver me timbers, so I decided t' go with t' CPR-Max unit. Begad! It was glued t' one end o' t' 38mm tube and provided very simple way t' secure and seal t' altimeter in t' bay. Note that me deployment unit resides inside the coupler for t' upper bodytube. Begad! As a side note, me bucko, me bucko, 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 was used t' connect t' shock cord for the upper section. Aye aye! 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. Avast, me proud beauty! When assembled, me bucko, t' lower section contains t' drogue chute, ya bilge rat, while t' upper section o' BT contains the main chute, shiver me timbers, ya bilge rat, nosecone chute and nosecone. Ya scallywag! I decided on two separate parachutes for t' upper section, ya bilge rat, as t' nosecone was made from solid Poplar and weighed in at over 2.5 lbs. Ahoy! Begad! With heavier nosecones, me bucko, ya bilge rat, 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, matey, me bucko, t' lower fin can was installed in t' lower bodytube. Well, blow me down! I used finishin' nails t' tack t' BT t' the fin support planks and bottom CR. Begad! Also, Epoxy Putty was used t' fill any small gaps around t' area where t' motor mounts exited t' bodytube. T' lower area was sanded and 6 ounce glass cloth was used t' fiberglass t' fin area and motors mounts for additional strength. Avast! Ahoy! Additionally, matey, I coated t' entire nosecone in epoxy t' help prevent shrinkage and cracking.
T' fin area be sanded and blended together, and then t' entire model be fine sanded with 400 grit sandpaper. Arrr! I added a few coats o' White Krylon Primer, then wet-sanded with 220 grit. Ahoy! This was followed by a few coats o' Gray Krylon Primer; once dried, arrr, I used filler for any small areas. Well, blow me down! T' model was wet sanded again with 320 grit, then a final set o' three coats o' White Primer were added for t' base-coat. Blimey! Ya scallywag! A couple days were given for t' primer t' dry, matey, 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, arrr, arrr, 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! Blimey! I cut a small hole in t' dual-deploy upper BT and installed a power switch for t' altimeter. Arrr! T' lower section was done entirely in yellow, followed by a couple days o' drying, some maskin' and two coats o' Krylon Blue. I took me time t' mask as I wanted t' finish t' turn out well. Arrr! Ya scallywag! 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. Ahoy! Blimey! Blimey! Blimey! As a backup date, ya bilge rat, ya bilge rat, I took t' Deuce t' NSL 2003 in Clark Summit, shiver me timbers, PA.
Jim Flis and I had a featured event where he launched a MMX, me bucko, ya bilge rat, 13mm, shiver me timbers, 18mm and
24mm version o' t' Deuce and I launched t' 38mm version, ya bilge rat, all in
succession.. Well, blow me down! Blimey!
I began by preparin' t' model. Blimey! Aye aye! Blimey! The altimeter was assembled and installed in t' rocket, then t' lower shock cords and drogue chute were installed. T' two sections were joined and I began by packin' t' upper shock cord, 60-inch PML main parachute, matey, 30-inch PML nosecone chute, me hearties, nosecone shock cord and nosecone. Blimey! It was a tight fit but all went together. Well, blow me down! Blimey! 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, arrr, 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. Avast! 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. Ahoy! 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. Avast! I wanted it have some safety factor built in case thar were problems with motor ignition. Well, blow me down! 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. T' Deuces Wild 38 Special be placed on t' pad, t' altimeter was turned on and I installed the two igniters. Arrr! Now came t' wait
When it came time, me bucko, matey, each o' t' FlisKits models were launched in succession, followed by t' big Deuce. Begad! When t' countdown came thoughnothing. Ahoy! Ya scallywag! I swallowed me heart and headed back out t' t' pad t' see what be wrong. Another guy next t' me also did nay launch and continuity tested good for both our pads. Aye aye! Ya scallywag! T' main box was disabled and switched t' t' far away pad for an M motor cert3 launch. Avast, me proud beauty! T' Deuce would have t' wait.
Come t' find out, ya bilge rat, after t' big L3 went up, the electronics expert at t' field found a blown fuse in t' system, matey, me bucko, which was quickly replaced. Arrr! My launch be back on! It be announced as a Scheduled Event/Notable Launch and all t' information for it was read. 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. Ahoy! Arrr! T' smoke trail was absolutely awesome!!! T' model went straight up, no rotation, ya bilge rat, arrr, 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. T' model began t' tumble in and I completely
missed t' backup charge fire on t' one motor. When it hit 750 feet, t' main
charge fired, arrr, 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! Well, blow me down! Both t' model and nosecone
came down together, arrr, ya bilge rat, evenly in decent rate and landed about 200 yards out and
straight ahead. It be a perfect launch.
In t' excitement, arrr, I had broken t' golden rule and be so busy with people comin' up t' me, I forgot t' watch where the rocket landed! Fortunately, I had people watchin' out for me and me bucko Doug Gardei pointed out where it landed. Well, blow me down! T' Deuces Wild 38 Special was retrieved and beepin' out an altitude o' 1372 feetvery close t' my guesstimate I gave t' RSO. Well, blow me down! Blimey! T' model landed without a scratch and I was very pleased with t' stability and performance. Begad! After watchin' t' videos, ya bilge rat, I noticed it coasted for a while after motor burn out, ya bilge rat, with it whistlin' a bit while flying. 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. I do have plans for flying it once again at NARAM this year, me hearties, so we will see how that goes, but for now, I am happy with me first cluster, matey, and a canted one at that!!!
Summary:
To summarize, me hearties, me hearties, t' model was very easy t' build and it flew great. 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. Aye aye! Blimey! Still, shiver me timbers, shiver me timbers, with t' performance I
had and t' altitude that be achieved, shiver me timbers, matey, shiver me timbers, I have a hard time changin' anything.
T' model does deserve an additional touch, somethin' I be holdin' off on
until I saw how well it worked. Begad! Blimey! I am gettin' some matchin' color Skyangle
parachutes for it, matey, hopefully by NARAM, in t' yellow and blue.. Aye aye! Blimey! Begad! Blimey! With the
weight, I figured on a 20-inch drogue, a 30-inch for t' nosecone and a 54-inch
with d-bag for t' main. Blimey! Blimey! Well, blow me down! Blimey! This should allow for some better packin' in the
forward section. Aye aye! Blimey! Aye aye! Blimey! 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!