BRS-6 General Installation Guide - CAFE Foundation

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system or bumping the handle. The remaining motion (approximately ½”) activates the rocket motor. Typical pull force requirements range from 30 to 70 lbs., depending upon friction variations in the routing, temperature, and overall length of cable/housing. The mechanical activation can be best compared to a firing pin on a gun. While the analogy is not exact, the sequence is similar in that a cocking action occurs, followed by detonation of the primer (by propelling a hammer into dual igniters). In turn, the primers ignite the solid fuel. To the user, the two actions are transparent… one pull seems to do everything. Nonetheless the system indeed first cocks itself, and then releases the hammer to contact the dual primers. Proper installation of the activating housing and handle is imperative to proper operation. BRS owners should never tamper with the activation housing and handle assembly. The design intent of the assembly must be maintained for it to work properly. Any misassembled components could lead to serious injury or death. As you can see in Figure 7 and 8 below, removing the screw holding the handle twist plate onto the handle holder affects the function of the assembly. Any reassembly requires that the nylon nut threaded over the end of the plastic housing be retained behind the screw on both the handle holder (Figure 7) and cone adapter (Figure 8) that threads onto the rocket launch tube. It is extremely important that the retaining screws be long enough to stop the nut from moving, yet short enough so that they do not crush the activation housing into the cable. Figure 7: Section of Handle Holder Figure 8: Section of Cone Adapter BRS-6 General Installation Guide (Models 600 through 1800) Page 14 of 47 BRS Document № 020001-03 Revision D Copyright © 2008, BRS Inc.
5. The Bridles and Harnesses Bridle is a term that BRS uses in two ways. In some cases (ultralights only), it describes a single section of webbing between the riser (previously mentioned) and an attachment point on the aircraft. In all other cases, it describes a single section of webbing attaching the riser to a set of 2-4 harnesses, which are attached directly to multiple points on the aircraft. Connections between the riser and bridle, or bridle and harnesses are typically made using a large steel “Quick Link”. Depending upon the particular system and aircraft, BRS uses Nylon or Kevlar® webbing for risers, bridles, and aircraft connection harnesses. BRS also uses stainless steel cable for bridles on certain, older aircraft designs. Nylon webbing is used: • whenever adequate elongation is necessary for absorbing opening loads. • for aircraft connection harnesses in situations where the strength and cut resistance of Kevlar® is unnecessary and a bit more stretch is preferred. Kevlar® webbing is used: • mostly for aircraft connection harnesses, as it is a high-modulus (low elasticity), low weight material with minimum breaking strength of 13,500 lbs per Parachute Industry Association (PIA) standard. • for risers in larger systems where more tensile strength is necessary and equivalent strength Nylon is prohibitively heavy. • for bridles that may come in contact with sharp metal or fiberglass (i.e. propellers). Stainless steel cables are used: • in applications where the bridle must be routed along an existing, smaller brace cable and using the webbing would add more drag. • Kevlar® or nylon does not offer enough resistance to cutting or abrasion and the additional weight/bulk is not a concern. All fabric webbing is protected against ultraviolet light damage (exposure to the sun) by fulllength nylon sheathing. After final assembly sewing, the thread is covered by opaque shrink tubing to prevent UV damage. BRS-6 General Installation Guide (Models 600 through 1800) Page 15 of 47 BRS Document № 020001-03 Revision D Copyright © 2008, BRS Inc.
Page 1 and 2: D C B A 6 5 Notes: 1. Part number 0
Page 3 and 4: This guide complies with applicable
Page 5 and 6: Introduction TABLE OF CONTENTS BRS
Page 7 and 8: INTRODUCTION Thank you for consider
Page 9 and 10: BRS SYSTEM BASICS The following dis
Page 11 and 12: With a few minor exceptions, all of
Page 13 and 14: Motor Case Forward Bulkhead Motor C
Page 15: Once ignited, the grains will burn
Page 19 and 20: INSTALLATION GUIDE BRS has helped e
Page 21 and 22: Models 600, 800, and 1050 Model 135
Page 23 and 24: SYSTEM MOUNTING Mounting your BRS p
Page 25 and 26: If you are unsure of the strength r
Page 27 and 28: 6. Egress BRS rockets have incredib
Page 29 and 30: PARACHUTE ATTACHMENT 1. Ultimate Lo
Page 31 and 32: When designing the harness assembly
Page 33 and 34: Figure 13: Inflation, Disreef (with
Page 35 and 36: Figure 17: Inflation, Disreef (w/ i
Page 37 and 38: low attitude were somewhat unstable
Page 39 and 40: you feel you have been supplied the
Page 41 and 42: ACTIVATION HANDLE MOUNTING As with
Page 43 and 44: FINAL NOTES In addition to this man
Page 45 and 46: ROCKET 600 800 Solid Fuel Rocket Mi
Page 47 and 48: CUSTOMER LOADS DETERMINATION WORKSH
Page 49: Ballistic Recovery Systems 300 Airp

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