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  1. #1
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    20th January 2009
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    Technical References for Parachute and Recovery Systems

    This thread is exclusively for technical references for recovery systems.

    This is the definitive reference for parachute design and constructuions. Click the link below to download. CAUTION: It is a 20 MB download.

    Accession Number : ADA247666
    Title : Parachute Recovery Systems Design Manual
    Corporate Author : NAVAL WEAPONS CENTER CHINA LAKE CA
    Personal Author(s) : Knacke, Theo W.
    PDF Url : ADA247666
    Report Date : MAR 1991
    Pagination or Media Count : 511
    Abstract : The purpose of this manual is to provide recovery system engineers in government and industry with tools to evaluate, analyze, select, and design parachute recovery systems. These systems range from simple, one-parachute assemblies to multiple-parachute systems, and may include equipment for impact attenuation, flotation, location, retrieval, and disposition. All system aspects are discussed, including the need for parachute recovery, the selection of the most suitable recovery system concept, concept analysis, parachute performance, force and stress analysis, material selection, parachute assembly and component design, and manufacturing. Experienced recovery system engineers will find this publication useful as a technical reference book; recent college graduates will find it useful as a textbook for learning about parachutes and parachute recovery systems; and technicians with extensive practical experience will find it useful as an engineering textbook that includes a chapter on parachute- related aerodynamics. In this manual, emphasis is placed on aiding government employees in evaluating and supervising the design and application of parachute systems. The parachute recovery system uses aerodynamic drag to decelerate people and equipment moving in air from a higher velocity to a lower velocity and to a safe landing. This lower velocity is known as rate of descent, landing velocity, or impact velocity, and is determined by the following requirements: (1) landing personnel uninjured and ready for action, (2) landing equipment and air vehicles undamaged and ready for use or refurbishment, and (3) impacting ordnance at a preselected angle and velocity.
    Descriptors : *VELOCITY, RECOVERY, SYSTEMS ENGINEERING, INDUSTRIES, AIRCRAFT, IMPACT, STRESS ANALYSIS, MATERIALS, RATES, LOW VELOCITY, ENGINEERING, SAFETY, AERODYNAMIC DRAG, ATTENUATION, PARACHUTES, ENGINEERS, UNIVERSITIES, PERSONNEL, ASSEMBLY, ORDNANCE, LEARNING, SELECTION, BOOKS, DESCENT, LANDING, GRADUATES, TEXTBOOKS.
    Subject Categories : AERODYNAMICS
    GLIDERS AND PARACHUTES
    Distribution Statement : APPROVED FOR PUBLIC RELEASE

    Last edited by bobkrech; 6th February 2012 at 04:13 PM.

  2. #2
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    18th January 2009
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    Huh! At first I thought this was a re-print of Knacke's AF report that is on the Irving (now Airborne systems) website the direct pdf link is here (57MB).

    But this is a different document. Nice find!


  3. #3
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    20th January 2009
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    The earlier version is here.

    Accession Number : ADA070251
    Title : Recovery Systems Design Guide
    Descriptive Note : Final technical rept. 1 Jun 75-30 Jun 78
    Corporate Author : IRVIN INDUSTRIES INC GARDENA CA
    Personal Author(s) : Ewing, E. G. ; Bixby, H. W. ; Knacke, T. W.
    PDF Url : ADA070251
    Report Date : DEC 1978
    Pagination or Media Count : 493
    Abstract : This document serves as the third revision of the USAF Parachute Handbook which was first published in 1951. The data and information represent the current state of the art relative to recovery system design and development. The initial chapters describe representative recovery applications, components, subsystems, material, manufacture and testing. The final chapters provide empirical data and analytical methods useful for predicting performance and presenting a definitive design of selected components into a reliable recovery system. (Author)
    Descriptors : *PARACHUTES, *HANDBOOKS, RECOVERY, STATE OF THE ART, EXPERIMENTAL DESIGN, IMPACT SHOCK, AIR DROP OPERATIONS, ESCAPE SYSTEMS, DECELERATION.
    Subject Categories : GLIDERS AND PARACHUTES
    INFORMATION SCIENCE
    Distribution Statement : APPROVED FOR PUBLIC RELEASE

  4. #4
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    20th February 2011
    Location
    Kenai, Alaska
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    Wow, this sounds like a really technical manual. It is downloading while this reply is being typed.

    Do you know if it covers the size of parachute needed for a 12.5 ounce rocket?

    Thanks for sharing this link!

    Mike

  5. #5
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    18th January 2009
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    OK
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    Quote Originally Posted by mbauer View Post
    Wow, this sounds like a really technical manual. It is downloading while this reply is being typed.

    Do you know if it covers the size of parachute needed for a 12.5 ounce rocket?

    Thanks for sharing this link!

    Mike
    these are probably overkill to answer your question. there are several parachute sizing calculators online...search on this forum (or the archive) for them.

    edit: like this thread from the archive http://www.rocketryforumarchive.com/...hlight=descent
    Last edited by rocketguy101; 12th July 2012 at 12:04 AM.

  6. #6
    Join Date
    11th March 2013
    Posts
    1
    hi im building my first rocket i know nothing about i got a lil nuke pk-4 an im wondering how this recovery system works an how you set up parachutes an whats wadding an basicly how do you set all this up i have no idia please help thanks

  7. #7
    Join Date
    13th November 2009
    Location
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    I would highly recommend getting the book, Handbook of Model Rocketry, by G. Harry Stine and Bill Stine.

    http://www.amazon.com/Handbook-Model.../dp/0471472425 to order or check out your local library.

    Click image for larger version. 

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    It will have just about everything you need to know to get you started. Including recovery (parachutes, wadding, etc.).

    Greg

  8. #8
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    13th November 2009
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    Oh, and welcome to the forum, goodwood!

    Greg

  9. #9
    Join Date
    12th April 2011
    Location
    Huntsville, AL
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    I'll contribute a few. These are geared more towards materials, construction, etc., but could be useful for those like me that are interested in making and repairing my own chutes. YMMV

    This one is free:
    FAA-H-8083-17 2005 Riggers Manual
    Geared towards becoming an FAA rigger but has some great info on packing, repairs, etc. Plus, it's a free PDF download from the FAA website.
    http://www.faa.gov/regulations_polic...-h-8083-17.pdf

    Some of the same type of info at a more in depth level:
    The Parachute Manual, by Dan Poynter. Volumes 1 and 2. Can be found on Amazon.com or Para Publishing.
    :cool::cool::cool::cool:
    Skydiving Enthusiast
    FAA Senior Parachute Rigger

  10. #10
    Join Date
    10th April 2009
    Location
    Auckland, NZ
    Posts
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    Found this rather interesting document on recovery system design while browsing a Google search

    http://www.ricknewlands.webspace.vir...%20rockets.pdf

  11. #11
    Join Date
    6th May 2013
    Location
    Southern GA
    Posts
    260
    This was posted over on another thread - but should be here:

    For those interested in the Ringsail parachute (used on Mercury, Gemini and Apollo missions), this text by Edgar Ewing is the definitive reference:

    http://www.dtic.mil/dtic/tr/fulltext/u2/745335.pdf

    -- john.


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