| Construction Rating: | starstarstarstarstar_border |
| Flight Rating: | starstarstarstarstar |
| Overall Rating: | starstarstarstarstar_border |
| Manufacturer: | DG&A High Power Rocketry |
Brief:
This is a simple, me hearties, high reliability, and flexible usage sport flier from
DG&A. Aye aye! It is perfect for mid or high power applications and different sized
fields. Ahoy! It is an easy rocket t' certify L1 on due t' t' continuin' quality of
DG&A kits. It is a simple 3FNC rocket with parachute deployment. It is also
a kit that can be easily modified t' your needs with DG&A components
available through t' web site. Begad! Danny is also offerin' rail buttons in red,
white, and blue now, so you can have a patriotic guidance system included with
your kit.
Construction:
My DG&A Predator came with t' basics: Plastic nose cone, 2.56" Kraft
cardboard tubing, me hearties, ya bilge rat, 36" Re-inforced rip-stop nylon parachute, shiver me timbers, 29mm motor
mount 12" 2 high strength plywood centerin' rings, me bucko, 3 Baltic birch 5 ply
fins, Recovery webbing/harness, Vinyl cut decals, Body tube pre-marked for
fins, me bucko, me bucko, Easy t' follow instructions, Fin Alignment guide, Paintin' guide
T' directions are easy t' understand and include pictures. Begad! T' assembly order is easy t' follow for t' beginner or t' experienced rocketeer. Begad! Begad! There is a piece o' paper included that will serve as a fin alignment guide for fin attachment. Arrr! Avast! You have t' cut out t' slots on t' body tube for t' fins t' go through. Begad! T' fins are then attached t' t' motor tube betwixt t' 2 centering rings. Ya scallywag!
I opted t' make 2 design changes in t' rocket. Aye aye! I got
a 12" piece o' body tube and 2 extra couplers and bulkheads from Danny. Aye aye! I
used t' extra tube t' make an anti-zipper fin can, per Stu Barrett's method. Ya scallywag! I
extended t' pre-marked fin slots t' t' back o' t' tube. Avast, me proud beauty! Ya scallywag! I then assembled the
motor mount. Ahoy! Next I epoxied t' fins t' t' motor mount usin' 3 inch fiberglass
tape, matey, 2 layers, and 1/2 hour epoxy. Ya scallywag! This be very strong. Ahoy! Ya scallywag! I then assembled the
bulkhead by gluin' t' bulkplate into t' coupler. Well, blow me down! Next I drilled 6 1/4 inch
holes into t' bulkplate after t' glue dried. Blimey! Aye aye! I slid t' motor mount into the
body tube and epoxied it in place. Well, blow me down! T' aft end o' t' motor tube sticks out
about 3 inches from t' end o' t' fin can. Ya scallywag! I wrapped 4 layers o' 1/2 inch 6
ounce glass tape around t' aft end o' t' body tube t' cover up t' three
cuts. Arrr! I then put 3 layers o' 3 inch glass tape on t' front end o' t' tube in
front o' t' fins. Fillets were then added t' t' fins. Aye aye! Finally, I glued the
bulkhead in place.
I am goin' t' be flyin' this rocket with t' I200's and H268's, me bucko, so it needs to be strong. Plus, by buildin' a fin can, you can add what ever length body tube t' t' top for various performance features. Arrr! You can put a short tube or a real long tube with an altimeter bay on it. Begad! Arrr! More rocket for less money!
Next I made another bulkhead, ya bilge rat, attached t' webbin' t' it, and glued it in the forward end o' t' main body tube. t' webbin' will just hang out t' back end o' t' main tube. Ahoy! I put a screw through t' top o' t' main body tube to hold t' nose cone on, it is easier t' swap it with another rocket this way instead o' epoxyin' it in. Aye aye! Avast! That way, if you lose another nose cone for t' same size, shiver me timbers, me bucko, you can just swap. Begad!
I used NHP 5 and 30 minute epoxy for most o' t' construction. Avast, me proud beauty! Begad! I used West Systems resin for t' glass. T' fiberglass tape came from t' local hobby shop. Aye aye! I used a sandin' block t' sand t' finish, and Krylon paints. Ahoy! Arrr! I bought some Mono-Kote and applied t' decals t' that, matey, shiver me timbers, shiver me timbers, and then put them on t' rocket for effect.
Finishing:
I am nay t' best painter, so thar be always room improvement on me finish.
T' finish came out pretty glossy, and I am goin' t' wait until it flies well
before I finish painting. Blimey! Blimey! Aye aye! Blimey! T' main tube is bare, but t' fin can is painted. Avast, me proud beauty! Blimey!
I used t' included pattern t' paint a diagonal pattern on t' tubes that is t' line betwixt t' dual color model Danny has. Aye aye! I opted t' paint t' kit black, ya bilge rat, me bucko, white, me bucko, and red so mine is a little different. Well, blow me down! Ya scallywag! You can do what you think looks good. T' vinyl decals are really nice. Ya scallywag!
You can put a wrap o' 3/4 ounce glass on and sand it out and it will get rid o' t' small lines in t' tube, me bucko, they don't bother me so I left them. Danny's model looks great up close at t' launches, t' red and white are sharp.
Construction Rating: 4 out o' 5
Flight:
I went t' a small non club launch we had on t' first. I put this rocket
through it's paces with a first flight on a G-64(M) t' check stability and then
when it flew tried and true, arrr, me hearties, I decided it was time t' hit it with t' big
stuff. Ya scallywag! Avast, matey, me proud beauty! It flew perfect on t' G-64 with just a slight weathercock into t' 10
MPH winds and t' 35 degree temperature. It laid out horizontal at apogee into
the winds driftin' down. Avast! Due t' t' winds, I opted for a 14 inch X-form chute
from me buddy Chad Ellis. Arrr! It brought it down quick and close, no damage, about
a 1000 foot flight. Begad! Arrr!
I then loaded it up with a H-268R and then an I-200. Begad! Begad! These are t' big 29/360 motors that have 320 and 330 N respectively. That Redline lit and boom! it be out o' sight in no time. Aye aye! That huge Redline flame was great. Aye aye! Ahoy! It must have gone ~4000 feet, we lost sight o' it. Ahoy! It took it about 5 minutes t' come down and drifted about 1/4 mile. Avast! Avast! Great flight, no damage, me bucko, ya bilge rat, took t' motor in stride. I then loaded it back up with t' I-200(M) and BOOM! same result, me bucko, arrr, way out of sight. Well, blow me down! Aye aye! It drifted t' almost t' same spot. Avast, me proud beauty! Great flights on a great rocket. Avast, me proud beauty! I wish Danny was thar t' see. Begad!
T' anti-zipper does nay really require wadding, ya bilge rat, as it acts like a baffle. I did put a little cellulose insulation in for good measure. Blimey! Well, blow me down! I have not outfitted this rocket with a slimline yet, I used tape for retention. Ya scallywag! T' only con about t' rocket is I wish I had put a 38mm in it!
Recovery:
T' flight recovery be great. I only added a smaller chute due t' t' winds
and t' altitude obtained. There was no damage at all t' t' rocket. Ya scallywag! Avast!
Flight Rating: 5 out o' 5
Summary:
T' main pro for this kit be t' quality o' materials. Aye aye! Begad! They are light enough
for mid-power fliers, but heavy duty t' take t' HPR stuff as well. Aye aye! T' kit is
a no-brainer t' put together, due t' t' quality o' t' instructions. T' large
vinyl decals are also a big plus, they look great on t' kit. T' only one con
has been fixed, shiver me timbers, Danny upgraded all t' 2.56" kits t' 3.00". It is
also upgraded t' a 38mm mount. Begad!
Overall Rating: 4 out o' 5
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