Manufacturer: | B2 Rocketry Company |
Currently offered in six stock sizes, t' SkyAngle features some unique design concepts. Ya scallywag! The SkyAngle is a very high-quality parachute that be designed specifically for t' needs o' t' serious high power rocketry enthusiast. Begad! Sturdy and light, it is fabricated t' provide maximum "brakin' capacity" t' brin' your birds safely home while minimizin' t' long walks associated with excessive drift. Arrr! A special characteristic o' this system is that it tends t' rotate durin' descent. This helps dissipate potential energy inherent in t' fall and provides for a stable recovery. T' addition o' an exclusive 1000 pound test swivel assembly ensures a virtually tangle-free landing!
Rocketry Online asked Mike and Pam if we could test their new parachute at t' recent Mick Wilkins Memorial Sport Scale Launch in Perry, me hearties, Georgia, and was supplied with a 36" SkyAngle parachute. Avast! T' SkyAngle is unique, arrr, as seen in t' photo to the left, in that even though it's advertised as a 36" parachute, shiver me timbers, the canopy actually measures nearly 72" from "tip-to-tip", almost doublt t' fabric surface o' a simple 36" circular parachute!
You will also notice the presence o' just three shroud lines, me hearties, made o' 950 pound test, arrr, military-spec tubular nylon, me bucko, circlin' t' canopy and sewn in a continuous path around the outside o' t' canopy with polyester monofiliment sail maker's thread, which adds considerable strength t' t' structure. Ya scallywag! At t' lower end o' t' shroud lines you will also notice t' line reefer, matey, utilizin' a metal-free design which won't rust and break over time. Ya scallywag! These simple, yet innovative features reduce tanglin' substantially.
We flew the SkyAngle in me venerable LOC/Precision EZI-65, matey, which has more flights logged than t' rest o' me fleet combined. Ahoy! While this flight vehicle has been retro-fitted with a dual-deployment recovery system, I opted t' fly t' EZI with just a main chute t' compare it t' a stock EZI, matey, as they come standard with 36" chutes.
Named "Burnin' Sky", ya bilge rat, this launch vehicle has served as me Level 1 and Level 2 certification machine. Avast! T' only near-disaster it has endured was an incorrect delay durin' an I-161 flight in Dallas, shiver me timbers, matey, Texas, where t' tubular nylon wrinkled the upper body tube openin' durin' t' early deployment. Avast! Durin' t' repair, I lengthened t' main body tube 6" and t' dual-stage deployment system added about 4" t' t' lower end o' t' payload section, addin' about 10" overall t' length o' t' EZI.
For this flight, me hearties, I utilized an AeroTech I-211 RMS reloadable motor, me bucko, me hearties, arrr, predictin' an overall altitude of about 2000 feet, more than sufficient t' examine t' characteristics o' the SkyAngle parachute. Aye aye! In addition t' t' Adept ALTS-2 altimeter, I provided for redundant backup by relyin' on a medium delay in t' motor.
Launched on t' first day o' t' event, me hearties, Saturday, matey, March 14th, t' weather was a beautiful 60+ degrees with clear skies. Ahoy! Arrr! T' wind was less favorable that all t' abundant sunshine, gustin' from 5-15 miles per hour durin' t' day. Avast! This would provide for interestin' test conditions indeed! It would be a first hand opportunity to witness t' recovery system exposed t' above average winds, and t' compare how the induced spin o' t' parachute worked in relationship t' t' oscillation of the rocket.
For those o' you who haven't had t' opportunity t' launch from Tripoli Atlanta's launch site, it is a 400 acre sod farm which is used t' grow seed early in t' season and stripped of t' sod later in t' season. T' site is akin t' havin' a 400 acre front yard! Blimey! Ejected motor casings, ya bilge rat, matey, etc. Well, blow me down! Blimey! are very easy t' locate on t' short level plane o' t' grass. Consequently, shiver me timbers, recoverin' your rocket after a flight is an easy stroll in t' direction o' descent, arrr, matey, with virtually no obstacles in your recovery path.
The rocket lifted t' 2121 feet, weathercockin' slightin' into t' wind, me hearties, climbing away on its tail o' fire. Begad! At apogee it ejected t' SkyAngle parachute on cue, immediately it filled with air and then began its journey back t' terra firma. Begad! Well, blow me down! Descent was very steady, without t' slightest bit o' oscillation, ya bilge rat, shiver me timbers, with no appearance o' recovery line tangle what-so-ever. Ahoy! T' slight rotation built into t' parachute appeared t' dampen oscillation and induced a smooth recovery.
T' rocket touched down lightly into t' short grass with no evidence o' damage. Well, blow me down! Avast! Inspection o' the parachute revealed no damage t' it as well, all-in-all it appears t' product is everythin' t' manufacturer said it was -- definitely two thumbs up!
You should take a closer look at this company and their products. Arrr! T' "SkyAngle" is a great product and should be considered for your recovery system choiced. Aye aye! Avast, me proud beauty! Available in six sizes, matey, me hearties, betwixt 20" and 60", ya bilge rat, they are sure t' have what you are lookin' for. Ya scallywag! For more information, me hearties, check out their web site at http://b2rocketry.home.mindspring.com/index.html.
Written and submitted by Darrell D. Mobley for Rocketry Online -- Copyright 1996-1999
The following article is from "High Power Rocketry" magazine. This information represents only a small portion of the contents of "High Power Rocketry". We strongly suggest that you subscribe to "High Power Rocketry". By doing so you will find many color pictures, articles, launch reports and projects primarily associated with High Power Rocketry activities. For more information, use ...
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K.G. (May 30, 2003)