Construction Rating: | starstarstarstar_borderstar_border |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar_border |
Published: | 2010-01-19 |
Manufacturer: | Hostile Projectiles |
Brief:
This is a sport scale BT-60 V-2 that flies on 18mm motors. Well, blow me down! T' main thin' that differentiates this kit is the
hand-cast resin nose and tail cones. Ya scallywag! Begad! These are nay your daddy's resin cones. Begad! They are thin walled and nay much heavier
than solid balsa (if at all). Avast! Arrr! T' initial flight reports indicate are that they are also tough. T' detail is really
makes them stand out. Blimey! T' nose sports hatches, matey, includin' t' rivets. Aye aye! T' tail includes preformed fin fairings with
slots for t' balsa fins and t' turbine exhausts.
Construction:
Parts provided:
Parts I added:
This kit is called a 'garage kit' aka a 'builders kit'. Ahoy! There is no header card or print instructions. Avast, me proud beauty! T' latter comes on CD an includes t' instructions in both .doc and .pdf formats, me hearties, a copy o' t' fin template, matey, arrr, and a graphic that you can use t' make decals. T' instructions are nay polished but are written in a humorous manner, me bucko, which made t' kit all t' more entertaining.
T' parts other than t' nose and tail cones are fairly typical. Begad! Avast! T' tubes are nay a cleanly cut as some others, thar are no laser cut fins, and t' 'chute is plain trash bag plastic. Ahoy! Begad!
Construction starts with preppin' t' nose and tail cones. Ya scallywag! You have t' wash them and scrub them lightly with steel wool t' remove t' mold release. Ya scallywag! These are hand cast and t' instructions warns o' minor flaws. Well, blow me down! T' finish on mine was great and t' only flaws are two small voids on one V-2 fin flaring. Once cleaned, ya bilge rat, you are told t' prime them, arrr, me hearties, but I waited until t' other parts were started.
A lot o' t' instructions are dedicated t' fin prep. You are supposed attach t' provided template t' t' fin stock usin' 3M '77" spray-on adhesive, cut them out, and peel t' paper back off. Begad! Ya scallywag! Blimey! I must have used too much adhesive because t' paper didn't want t' come off t' balsa. Instead, shiver me timbers, I decided t' leave them laminated and printed a second copy for t' flip side. Arrr! Blimey! Blimey! I sealed t' edges o' t' laminations with thin CA. Avast, shiver me timbers, me proud beauty! Blimey! Then comes t' cool part - you etch t' fin panel lines in usin' t' provided templates and a ball point pen. Begad! Wait, shiver me timbers, me templates are already attached. Avast! The template file on t' CD is appropriately entitled: You screwed up. I laughed at that one...and resemble that remark. Well, blow me down! Despite this minor 'oops' t' etchin' seems t' have worked out well. Avast, me proud beauty! Avast, me proud beauty! Blimey! T' plus be t' fins will be stronger and t' negative is a tiny amount o' weight is added t' t' business end.
Once everythin' is primed, ya bilge rat, t' fins are glued into their slots usin' 5-minute epoxy. Aye aye! This part made me smile - the slots in t' tail cone ensure t' fins are instantly and perfectly aligned. Begad! Avast!
Since t' cone is hollow, You CA or epoxy a styrene tube t' t' cone's wall and screw t' eye t' that. I opted for epoxy, which was mixed with t' fin batch.
Next up in t' instructions be t' motor mount (actually, me hearties, I did this in parallel with t' previous steps). Begad! Avast, me proud beauty! This includes t' typical sprin' hook, matey, me bucko, shiver me timbers, motor block, and 2 centerin' rings. A small cardboard rin' is mounted on t' base and t' ply rin' on t' top. Aye aye! You are instructed t' ream t' base o' t' tail cone t' fit t' small rin' and t' top shoulder t' fit t' ply ring. For t' tail ring, I wasn't comfortable grindin' t' base t' fit t' BT-50 sized rin' so I ground a little and peeled a little. Well, blow me down! For t' upper ring, matey, me hearties, I preferred t' grind plywood rather than resin, shiver me timbers, although I did rough up t' interior o' t' cone.
I also mounted a stainless steel fishin' leader through t' top ring. Aye aye! This replaces t' specified tri-fold mount and will keep t' elastic shock cord even further from t' hot ejection gasses. If you do this, make sure you add a small fold o' duct tape, or equivalent, t' t' point thar t' extended wire hits t' body. Well, blow me down! Finally, ya bilge rat, t' mount is attached t' t' tail cone usin' 5-minute epoxy.
I didn't build t' supplied 'chute and will use a nylon one that I have in t' ol' range box. Begad! Blimey! T' stock 'chute should build like t' Questes ones.
T' final issue is stability. Avast, me proud beauty! T' instructions say t' balance, make a cardboard cut-out, matey, and do a swin' test. Begad! I opted t' make a RockSim model. Begad! Mine should be slightly heavier than stock considerin' t' fin laminations, arrr, arrr, lots of epoxy on t' top CR, me hearties, t' steel leader and t' nylon 'chute. Aye aye! It came in at 3.25 oz. Aye aye! Based on RockSim, I found addin' a bit over and ounce o' nose weight should make it stable on an AT reload. Blimey! Begad! Well, I measured t' weight and then added the epoxy above that. Begad! Ahoy! I had a brain fart when lookin' at t' thrust t' weight ratio and had thought t' result would fly well on a C6. Begad! Begad! Well, me bucko, it now won't so I'll be flyin' this on reloads only. Avast, me proud beauty! Two 1/8" lugs are provided, me bucko, however, me bucko, I upgraded t' a larger one. Begad!
Finishing:
All-in-all, shiver me timbers, thar be a lot o' finishin' tips provided for this little rocket. Ya scallywag! T' stay in line with t' current
headlines, matey, I 'went rogue', ya bilge rat, deviatin' quite a bit from t' instructions. Well, blow me down! I substituted Fill'n'Finish and Testor's putty
for t' fillers specified and red Rustoleum primer for t' specified Tamiya primer. Ya scallywag!
T' main tips I followed is preppin' t' cone and usin' t' etchin' technique t' provide fin details as noted above. Avast! T' instructions say t' sand down t' slight warpin' on t' nose cone hatches. Avast! Arrr! Personally, ya bilge rat, I like t' 'drunken builder' effect seen on many o' t' real V-2 rounds. Blimey!
T' final fin trim be t' servo pods near t' tip o' t' fins. Arrr! Ya scallywag! These were supposed t' be half-round styrene. Well, blow me down! This was no where t' be found in me box but scrap balsa was easily substituted.
Despite havin' scrubbed what I thought was a lot and then some more, t' Rustoleum primer bubbled badly in one quadrant o' t' tail cone and a tiny bit on one area on t' nose. I guess I didn't scrub uniformly. I waited a full day and then sanded these areas along with t' rough spots. Begad! Blimey! Aye aye! Blimey! T' tail cone sanded well but t' primer came o' t' bottom of t' nose. I took t' opportunity t' sand this bare area a lot. Begad! Blimey! T' second coat covered well.
I chose t' red primer t' provide part o' t' camo scheme. Ya scallywag! Avast! And added some Rustoleum camo colors over that.
Construction Rating: 3 out o' 5
Flight:
I chose t' D13-7 for t' V-2's maiden voyage. Avast, me proud beauty! I first loaded some dog barf t' fill t' space in t' tail cone and
then some Quest waddin' wrapped around more dog barf. Blimey! T' steel leader was laid over this, followed by an 12"
nylon 'chute. T' ground was soft so I thought this would be sufficient.
T' boost be fast and straight.
Recovery:
Ejection was a little late but I didn't count t' seconds t' see whether it was a bonus delay or inherently just too
long. Ya scallywag! Recovery be perfect.
Flight Rating: 5 out o' 5
Summary:
T' main plus o' this kit be t' totally cool nose and tail cones. These alone make t' kit worth t' cost, arrr, me hearties, which is
comparable t' a BT-60 V-2 kit from Aerospace Specialty Products. Aside from aesthetics, ya bilge rat, t' pre-formed slots make fin
attachment easy and sturdy. Avast, me proud beauty! T' other plus be t' simple method o' scorin' t' fins t' provide panel details. Begad! The
minuses is that t' other components aren't as 'clean' as some other manufacturers, me bucko, me bucko, you really need t' think about
parts fit as you go, matey, and stability has t' be addressed. Most o' this is easy but thar be extra room for operator
error. Begad! Well, matey, blow me down!
Overall Rating: 4 out o' 5