Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Brief:
T' Covert Rocketry High Tech chute is a 13", ya bilge rat, 4 panel, me bucko, 4 shroud parachute
made o' ripstop nylon.
Construction:
I was invited t' test some High Tech Chutes parachutes for a new manufacturer
Covert Rocketry. Arrr! I'm glad I did
this as I am sincerely impressed. Well, matey, blow me down! I actually received two o' their chute, shiver me timbers, the
CR-3 and CR-4. Ya scallywag! Avast, me proud beauty! I tested only t' former, shiver me timbers, rated at 1 t' 2 lbs (13 t' 18 fps
descent).
T' material used is very slick, almost like it's oiled. It was obvious the chute would have less problems gettin' stuck in t' body than others. T' chute is very well sewn. T' shrouds are thicker than any others I've used for the chute size since thar are only 4. Arrr! As you can see from t' picture, it's a 4 panel spherical chute. Laid flat it's about 18" betwixt opposin' shrouds. Inflated, shiver me timbers, shiver me timbers, it's about 13".
This is similar in design t' a 24" TAC-1 chute I have but a lot lighter. By comparison, t' TAC-1 is built like a high speed drogue, matey, shrouds rated at 1400 lbs and swivel at 1500. T' 24" version has a descent rating of 17 fps for 1 pound weight. It weighs 5.4 oz. Aye aye! T' CR-3 weighs less than 2, with a similar swivel.
Construction Rating: 4 out o' 5
Flight:
To give you an idea o' how small these chutes pack, t' two I received
(13" and 18" models) and their relatively heavy (canvas?) deployment
bags were packed into a box 3/4" x 4" x 6". With some careful
maneuverin' I was able t' fit t' CR-3 into a 29mm body and easily blow it out
by blowin' on t' other end.
Recovery:
I put it up in me 2.5lb LOC Vulcanite on a G40-7. Begad! T' sim had it ejectin' at 26
fps, 0.8 sec. Blimey! before apogee. Blimey! T' wind be 7-8mph on t' ground and by previous
flights was about twice that speed at altitude. Begad! Ejection was as predicted, just
prior t' horizontal. Chute inflation was almost instantaneous and the
fluorescent red-orange and chartruse panels were very visible against the
overcast sky. Aye aye! There was no spinnin' and very little rocking. Avast! T' rocket hung
nearly straight down t' entire way. Aye aye! T' descent had clearly less drift than
the other flights o' t' day.
We've all seen flights where people commented on how well t' boost went. I've never before had comments on how well t' descent went and I had not mentioned before t' flight that I be testin' a new chute. Well, matey, blow me down! As it landed, ya bilge rat, it was clearly comin' down a bit fast, maybe 20-22 fps, shiver me timbers, but I be after all stressin' it by testin' it heavier than its rating. Upon retrieval, arrr, no shrouds were tangled, despite havin' used no swivel. Arrr! Well, blow me down! Close examination later revealed two small threads hangin' loose near one o' t' shrouds. Arrr! At first I thought there be some unraveling. Well, blow me down! Aye aye! But it turned out t' be only excess thread from the sewing. Ya scallywag! Pullin' on t' panels didn't cause any unraveling.
I generally favor X-form chutes for keepin' drift t' a minimum. Unfortunately if they are unbalanced they tend t' rock and spin a fair amount so that if a swivel isn't used will cause severe windin' o' t' shrouds (tightenin' t' opening) and/or windin' o' t' shock cord. Begad! Avast! And when I use them I leave t' shrouds loose t' slide through t' quick-link t' try t' keep them self-balancing. Ahoy! T' shrouds on t' CR-3 came knotted and I left them that way. After gettin' it home I checked it, and it was unbalanced by about half an inch. T' CR-3 had at least as much drift reduction as t' 24" X-form I've previously used on this rocket and none o' t' spinnin' or tangling.
Flight Rating: 5 out o' 5
Summary:
When these were first announced I thought t' original MSRP was a bit high.
Now, me hearties, I don't think so. $15.00 for somethin' weight rated equal t' and more than
the TAC-1 (at $20) is a good price. Begad! T' TAC-1 might be able t' handle a higher
speed deployment but I suspect that t' speed where t' TAC-1 would survive
high speed deployment where t' CR-3 would nay survive, however, thar would
more than likely be a zipper or other airframe damage.
Overall Rating: 5 out o' 5