{"id":1561,"date":"2009-11-13T01:37:51","date_gmt":"2009-11-13T09:37:51","guid":{"rendered":"http:\/\/rocketsnw.com\/?page_id=1561"},"modified":"2009-11-18T12:57:59","modified_gmt":"2009-11-18T20:57:59","slug":"ingraham-aerospace-sciences-academy%e2%80%99s-%e2%80%9cproject-rainier%e2%80%9d","status":"publish","type":"page","link":"https:\/\/northwestrocketry.com\/?page_id=1561","title":{"rendered":"Ingraham Aerospace Sciences Academy\u2019s \u201cProject:  Rainier\u201d"},"content":{"rendered":"<p>Article 1561<br \/>\nBy Peter Schurke, November 2009<br \/>\n\u00a0<\/p>\n<p>Dateline:\u00a0 Seattle\u2014November, 2009<\/p>\n<p>Fresh off of an incredible year in the Team America Rocketry Challenge, the budding rocket engineers at Seattle\u2019s Ingraham High School are taking on a new challenge:\u00a0 Designing rockets for NASA!<\/p>\n<p>Last year, all three teams from a small academy program within Ingraham High School\u2014the Ingraham Aerospace Sciences Academy (IASA)\u2014were the only teams from the Northwest to make it to the finals of the Team America Rocketry Challenge (TARC).\u00a0 The smallest and youngest of the three teams, Team Charlie, had an incredible day and finished in seventh place\u2014earning the IASA an invitation to submit a proposal to participate in NASA\u2019s Student Launch Initiative in 2009-2010.<\/p>\n<p>A dedicated group of ten returning students worked hard to put together a detailed proposal for a science project and a re-usable rocket.\u00a0 They submitted their proposal on October 1<sup>st<\/sup>, and received notification from NASA on October 22<sup>nd<\/sup> that their proposal had been accepted.\u00a0 They are now working on a detailed preliminary design for their Preliminary Design Review (PDR) which is due to NASA on December 5<sup>th<\/sup>, 2009.<\/p>\n<p>The requirements of the SLI project are as follows:<\/p>\n<ul>\n<li>The vehicle shall carry a student-designed science payload.<\/li>\n<li>The vehicle shall be developed so that it delivers the science payload to a specific altitude of 5,280 feet AGL.<\/li>\n<li>The vehicle shall be designed to use a standard launch rail.<\/li>\n<li>For new teams (us), the maximum total motor impulse provided by the entire vehicle shall not exceed 2560 Newton-seconds (K-class).\u00a0 This total impulse constraint is applicable to any combination of single, clustered, or staged motors.<\/li>\n<li>The vehicle shall use solid motor propulsion using ammonium perchlorate composite propellant (APCP) motors.\u00a0 Teams will have a choice of motors from which to choose.<\/li>\n<li>The launch vehicle and science project shall be designed to be recoverable and reusable.<\/li>\n<li>Separation at apogee will be allowed, but not advised because main deployment at apogee increases the risk of drifting outside the recovery area.\u00a0 Exception:\u00a0 Separating at apogee to deploy a drogue parachute.\u00a0 Dual deployment and shear pins are encouraged.<\/li>\n<li>Rockets should not be so complicated that preparation of the vehicle and payload on launch day shall exceed 4 hours.\u00a0 At the end of the 4 hour preparation period, the team must be prepared to launch.<\/li>\n<li>All vehicle and payload components will be designed to land on the field within the square mile of recovery area.<\/li>\n<li>Rockets should not have time-critical experiments.\u00a0 Payloads with electronics or recorders must be able to sit on the launch pad for up to an hour before launch to accommodate possible range and weather delays.<\/li>\n<li>Rockets will be launched from a standard firing system that does not require additional circuitry or special ground support equipment to initiate the flight or complicate a normal 10 second countdown.<\/li>\n<li>Data from the science project shall be collected, analyzed, and reported by the team following the scientific method.<\/li>\n<li>A tracking device shall be placed on or in the vehicle allowing the rocket and payload to be recovered after launch.<\/li>\n<li>A scale model of the team\u2019s proposed vehicle must be constructed and flown prior to the Critical Design Review (CDR) to verify the flightworthiness of the design.<\/li>\n<li>All teams must successfully launch their full-scale rocket prior to Flight Readiness Review (FRR).\u00a0 The purpose is to verify the vehicle structure and recovery systems and the team\u2019s performance.\u00a0 A flight certification form will be filled out by an L2 or higher NAR\/TRA observer.<\/li>\n<li>The following items may not be used in building the rocket:\n<ul>\n<li>No flashbulbs.\u00a0 The recovery system must use commercially available low-current electric matches.<\/li>\n<li>No forward canards.<\/li>\n<li>No mach-busters.<\/li>\n<li>No forward-firing motors.<\/li>\n<li>No rear-ejection parachute designs.<\/li>\n<\/ul>\n<\/li>\n<li>An Educational Engagement plan must include at least two projects that engage a combined total of 75 or more younger students in rocketry.\u00a0 Comprehensive feedback on the activity must be developed and submitted.<\/li>\n<\/ul>\n<p><strong>Some specifics on \u201cProject:\u00a0 Rainier\u201d<\/strong><\/p>\n<p>A copy of the team\u2019s proposal is available at our website:\u00a0 <a href=\"http:\/\/www.ingrahamrocketry.org\/sli.html\" target=\"_blank\"><span id=\"lw_1258578087_0\">www.ingrahamrocketry.org\/sli.html<\/span><\/a><\/p>\n<p>(Disclaimer:\u00a0 the website is still extremely elementary.\u00a0 Increased sophistication is in progress\u2026trust me).\u00a0 Updates will be made as the project progresses.<\/p>\n<p>As their science project, the students chose to place a large stabilizing gyroscope at the vehicle\u2019s approximate center of mass and measure how effectively (or not) the gyroscope \u201cfights the ambient forces that attempt to deviate the rocket\u2019s attitude from straight up\u201d.\u00a0 Because the gyroscope does not actively control any of the flight surfaces it is technically classified as \u201cpassive stabilization\u201d.<\/p>\n<p>Dual-redundant altimeters are planned to control deployment of a drogue at apogee and a main at a yet-to-be-selected altitude.\u00a0 An accelerometer-based altimeter will be used as the primary deployment altimeter for sensing apogee, while a barometric-based altimeter will be used as the backup deployment system.\u00a0 This arrangement utilizing two different altimeters with two different failure modes was chosen to increase reliability of the deployment system.<\/p>\n<p>\u00a0A third altimeter for gathering accelerometer and barometric data and a GPS telemetry system is planned, and will be placed in the nose cone of the vehicle.\u00a0 The nose cone bulkhead will then be shielded to prevent signals from the transmitter from interfering with the deployment systems.\u00a0 This will allow the students to capture telemetry data in real time, as well as the data stored on the altimeters; the GPS will also serve as the required tracking device.<\/p>\n<p>\u00a0The rocket will be intentionally designed so that when fully loaded it will be at the minimum end of the stability range.\u00a0 This will give the students the ability to fly control flights with the gyroscope inactive while also giving them the greatest possible opportunity to sense an increase in overall stability when the gyroscope is active.<\/p>\n<p>\u00a0At this time, we are in the process of selecting and ordering parts, designing an electronics package for sensing, measuring, and logging the effect of the gyroscope on the flights of the vehicle, and refining the overall design of the vehicle.<\/p>\n<p>\u00a0Updates will be periodically posted to the team\u2019s website, as well as sent to the new (and absolutely gorgeous) Northwest Rocketry website.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Article 1561 By Peter Schurke, November 2009 \u00a0 Dateline:\u00a0 Seattle\u2014November, 2009 Fresh off of an incredible year in the Team America Rocketry Challenge, the budding rocket engineers at Seattle\u2019s Ingraham High School are taking on a new challenge:\u00a0 Designing rockets for NASA! Last year, all three teams from a small academy program within Ingraham High [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1572,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"ngg_post_thumbnail":0},"_links":{"self":[{"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=\/wp\/v2\/pages\/1561"}],"collection":[{"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1561"}],"version-history":[{"count":4,"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=\/wp\/v2\/pages\/1561\/revisions"}],"predecessor-version":[{"id":1626,"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=\/wp\/v2\/pages\/1561\/revisions\/1626"}],"up":[{"embeddable":true,"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=\/wp\/v2\/pages\/1572"}],"wp:attachment":[{"href":"https:\/\/northwestrocketry.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}