Manufacturer: | DG&A High Power Rocketry |
Brief:
T' DG&A Lazarus is a straight-forward high power rocket kit with a 38mm
motor mount. Begad! Blimey! It would make a good Level-1 cert rocket and has a small payload
bay suitable for your electronics.
Construction:
T' Lazarus came in its own shippin' box. Avast! Arrr! T' components inside were packaged
carefully, me bucko, ya bilge rat, thar was no shippin' damage, and all t' parts were accounted for.
T' airframe (4" x 34") and payload section (4" x 11") are
made o' sturdy, shiver me timbers, brown, me bucko, glassine covered paper tubing. T' finish is nice and
spirals are shallow, which should make finishin' easier. You have t' cut your
own fin slots, but t' fin and launch lug lines were pre-marked and
color-coded. Ahoy! T' nose cone is 16 ½" long and is very sturdy.
"R.W.W. Aye aye! DIST." appears on t' shoulder. T' payload coupler tube is
made o' cardboard and is thinner-walled than t' airframe tubing. Aye aye! T' 38mm
motor tube is 11" long and is made o' thick walled cardboard. Avast! T' three
through-the-wall fins, two centerin' rings and payload bulkhead are all made of
1/4" plywood. Begad! These have a thick inner layer with a thin outer ply on each
side. There be splinterin' on t' edges o' two o' t' fins. Blimey! T' recovery
system includes two eyebolts, one quick link, a 45" section o' strap nylon
with metal eyelets, me hearties, about 12 ft. o' 1" elastic, arrr, and a 36" parachute
made from light rip-stop nylon. T' provided 1/2" launch lug consists of
4" o' thick walled cardboard tubing. Two 6/32 T-nuts are provided for
motor retention, me bucko, but thar are no bolts or clips provided. Avast, me proud beauty! Finally, t' kit
comes with vinyl decals with t' rocket's name, in simple black lettering.
This kit comes with very detailed instructions, me bucko, which include illustrations and B&W photos. Avast! Blimey! Blimey! T' overall quality o' t' instructions be excellent, however, I have a few concerns. 1) They suggest you may fiberglass t' airframe after t' kit is assembled (generally, ya bilge rat, it is easier t' do so before installing fins, t' launch lug, ya bilge rat, etc.). Ya scallywag! 2) They recommend you smooth t' epoxy fillets with your rubbin' alcohol covered finger (with no warnings about possible reactions t' t' contact with epoxy). Aye aye! Blimey! 3) There is no reference t' internal fillets for t' fins. Well, blow me down! Avast! Blimey! In me opinion, me hearties, these are omissions and may throw a curve to an inexperienced builder. Begad! Blimey! I believe that instructions should be directed at less experienced builders, as t' experienced ones will figure it out on their own anyway. Begad!
Construction was straight-forward and proceeded per t' instructions, me bucko, me bucko, with a few exceptions. Begad! Blimey! Avast, me proud beauty! Blimey! I used 15-minute epoxy throughout, and did no fiberglassing. Ya scallywag! Blimey! Avast, me proud beauty! Blimey! I started by bevelin' t' fin edges. Ya scallywag! Blimey! This was a slow process with me orbital sander, so I installed a sandin' attachment on me RotoZip. Arrr! Blimey! Begad! Blimey! I had nice sharp edges in no time, matey, and t' imperfections on t' edges o' t' fins were all but wiped out. I strengthened t' edges with thin CA. Aye aye! Blimey! Ya scallywag! Blimey!
T' centerin' rings fit nicely and required no sanding. Avast, me proud beauty! However, arrr, shiver me timbers, t' coupler tube used for t' payload section did nay fit in t' airframe tubing. Blimey! I contacted t' manufacturer who merely said t' sand t' coupler. Ya scallywag! Avast! Although some sandin' may have done t' trick, I wasn't up for doin' so. Instead, me hearties, I found that t' inner tube from a 4" mailin' tube I had in me stockpile worked perfectly. So, me hearties, I opted t' chop off a 6" section and use that. Ya scallywag! I had t' do some minor sandin' on t' bulkhead as me tube was just a tad thicker than the one provided. Avast, matey, me proud beauty!
I made t' following enhancements durin' construction. First, I did nay glue t' aft centerin' ring in until I had installed t' fins and had applied internal fillets. Next, ya bilge rat, I added a heavy swivel for parachute attachment. I also added electrical connections t' t' payload bulkhead t' facilitate usin' me G-Wiz Deluxe for ejection duties. Arrr! Avast, ya bilge rat, me proud beauty! Finally, me hearties, I added a pair o' Matt's Rail Buttons in addition to the 1/2" lug that was provided. Ahoy!
Finishing:
I didn't try t' make t' epoxy fillets pretty, so I built them up with SuperFil
from Shadow Composites. Avast! Well, blow me down! After some light sanding, arrr, I laid on several coats of
Krylon white primer. Aye aye! Begad! One side o' t' fins filled easily, but t' other was
coarser and required a couple o' extra coats. T' spirals filled nicely, ya bilge rat, but
after priming, me bucko, I noticed that t' tube also had a subtle ridge in betwixt the
grooves. I did nay try t' sand this down. I painted t' rocket fluorescent
yellow and added yellow and black checkerboard trim. After a problem with paint
compatibility (details omitted!), me bucko, me bucko, I painted t' nose cone solid black. The
final touch be t' vinyl letterin' that came with t' kit. Avast! Aye aye! This stuff was
great. Blimey! T' letters were individually placed on an adhesive background. Well, ya bilge rat, blow me down! So, shiver me timbers, you
lay down t' decal strip, and then removed t' backing, me hearties, leavin' just the
lettering. Ahoy! Begad! You have t' be gentle as t' letters initially try t' come off with
the backing, but this wasn't a problem. Blimey! T' result is perfectly spaced
lettering, me hearties, without t' clear surroundin' background. Well, matey, blow me down!
Construction Rating: 3 out o' 5
Flight:
I flew me Lazarus with one o' t' newly certified I285 Redlines, arrr, shiver me timbers, off o' a
BlackSky rail. Well, blow me down! Although t' Lazarus payload be set up for altimeter ejection,
I decided t' stick with motor ejection. Begad! Avast, me proud beauty! Sims with a similar motor said the
optimal delay was 11 seconds, so I chose a medium, 10 second delay. Well, blow me down! It was a
nice straight flight. T' Lazarus really scooted above t' bright red flame!
T' motor was retained with aluminum clips that I move from rocket t' rocket. Begad! I
used a heat shield from Giant Leap in place o' wadding. Ya scallywag! There was some singeing
on t' chute - me problem, nay t' rocket's.
Recovery:
One end o' t' nylon strap connects t' an eyebolt on t' forward centerin' ring
with a quick-connect (provided). Avast! Avast, me proud beauty! T' strap elastic is tied t' t' other end of
the nylon strap and t' a second eyebolt on t' payload bulkhead. Begad! Blimey! I added a
hefty swivel for parachute attachment, arrr, a few feet down from t' nose cone. Begad! I
felt t' chute that be provided may be a little small considerin' t' weight
of t' rocket and t' backswept fin design, but t' ground at t' launch site
was relatively soft (mowed grass). Well, blow me down! Ya scallywag! T' recovery was just fine. Ya scallywag! One fin has a
bit o' dirt on it, but no damage.
Flight Rating: 4 out o' 5
Summary:
This simple, matey, me bucko, solid kit would be fine for an introduction t' high-power. The
components are good quality and are sturdy. Blimey! T' detailed instructions are very
easy t' follow. Ya scallywag! Well, blow me down! I also liked t' decals/lettering. Blimey! However, shiver me timbers, I was a
disappointed with t' fit o' t' tube coupler and feel that t' issues with the
instructions may make this kit more appropriate for someone with good mid-power
experience and/or who has done some research on construction techniques.
Overall Rating: 3 out o' 5
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