SPACEX's FIRST CREW LAUNCH
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T OTAL I MPULSE V OLUME 2 0 , N O . 3 May - June 2020 Inside This Issue: SPACEX’s FIRST CREW LAUNCH Article: Page Harrison Fin Jig Review 3 AGM-45A Shrike Anti-Radiation Missile 10 View From The Flight Line 17 Throwback Launch Gallery 18 Club News 29 Current Events in Space Exploration 30 NASA SLS Infographic 32 This Month in Aerospace History 34 Launch Windows 38 Tool Time 39 Our Members in the Field Zoom 40 Harrison Fin Jig Review US NAVY ANTI-RADIATION MISSILES PART 2: AGM-45A SHRIKE T OTAL I MPULSE V OLUME 2 0 , N O . 3 Pa g e 2 CLUB OFFICERS President: Scott Miller Vice President: Roger Sadowsky Treasurer: Tony Haga Secretary: Bob Dickinson Editor / NAR Advisor: Buzz Nau Communications: Dan Harrison Board of Director: Dale Hodgson Board of Director: Mark Chrumka Board of Director: Dave Glover Welcome everyone to the May- As the country starts to reopen, I MEMBERSHIP June 2020 issue of Total Impulse. I hope am happy to see small steps taken with To become a member of the Jackson Model caution. There are some rocket clubs hold- Rocketry Club and Huron Valley Rocket Society you all are doing well in this bizzaro world means becoming a part of our family. We have we’ve found ourselves in. ing modified launches as well which is monthly launches and participate in many edu- Typically the May-June issue is great, because it will start to build the much cational events. We encourage our members to full of launch reports and photos. With -needed data that we can leverage to make actively participate in our club projects, running lockdown curtailing our events we have informed decisions. for office in our annual elections, contributing to resorted to other means of getting togeth- While I'm happy for the other our monthly newsletter with articles or tips, and er including the teleconferencing service groups and wish them the best of luck I offering services to the club in their area of ex- know we can't assume all situations can be pertise. We have many members comprised of Zoom. We’ve held two virtual meetings so far that went really well. It was good to treated the same. When Roger and I start- children, men, women, professionals, lay people, ed this club over two decades ago it was educators and people from many other walks of see friendly faces and chat about rockets life. for awhile. Since the June launch is a inspired by the Michigan Space and Sci- You may fill out an application at a launch or bust, I will schedule another Zoom meet- ence Center and the thought that everyone is welcome. We are built with the idea of request an application from one of our board ing soon. Also, in lieu of launch photos I members at [email protected] and mail family friendly and education events for all. it along with a check for the annual membership threw together a “Thowback” gallery of We are actively working on proto- dues ($30.00 individual or $40.00 family) to our photos from past launches that I had and cols to be able to resume flying but there mailing address: members submitted to me. I hope that are a couple points I need to maintain rigidi- brings back some great memories and ty. If we have to actively exclude anyone JMRC/HUVARS gets you looking forward to our next due to number of people allowed or can't C/O Bob Dickinson launch. 5668 Big Fish Rd physically help a young rockteer load their Make sure you check out the Goodrich, MI 48438 rocket on the pad because we reside in Club News and announcement of or pro- different households for example; then we Members enjoy participating in club projects, totype Electronic Flight Card System. are a "No Go". We all want to be back out meeting an incredible group of positive people, Scott whipped this up in just a few hours in the field flying but we cannot sacrifice our and no launch fees! and looks great. This will really help sup- club's beliefs and history just because we port social distancing when we are able to are suffering from "Go Fever". COMM CHANNELS resume launches. Please support all groups and There are several ways to keep in touch with the Big thanks to those who contrib- their beliefs/approaches to re-engage safely JMRC/HUVARS and it’s members. so we can all learn from the procedures that uted content for this issue, Steve Kristal, Website: http://www.jmrconline.org. Information Dale Hodgson, Al dela Iglesia, Mark will work. Shared expertise, mutual respect, includes directions to launch sites & schedule, Chrumka, and Tony Haga. Steve wrote an and reliable data will let us all get through range procedures, and instructions on how to excellent review of Dan Harrison’s Fin Jig this together. I hope everyone stays safe join the club. that includes a lot of detail on a quality and healthy in these trying times. product. Groups.io: The JMRC groups.io site is a place As always, I am looking for con- About Total Impulse to share files and also serves as our primary e- mail list serv. Follow this link to join, tent for upcoming issues. Plans, reviews, Total Impulse is the official newsletter of the https://groups.io/g/jmrc tips, competition strategies… they are all Jackson Model Rocket Club (JMRC), Tripoli welcome. If you have an idea and don’t Prefecture 96, NAR Section 620. Published Bi- Facebook: If you have a FaceBook account know where or how to start, drop me an Monthly, Total Impulse is a space-modeling search for “Jackson Model Rocket Club JMRC” email and I will be happy to work with you! newsletter devoted to representing the diversity and request to be added. of interests in today’s hobby of model rocketry. Thanks everyone and I hope you enjoy This newsletter is in the public domain except the issue. GroupMe: Our new chat channel for broadcast- where otherwise marked. Unmarked articles, ing notifications instantly using a free download photographs, and drawings may be re-printed client for IOS and Droid as well as by SMS text Launch/Event Calendar - 2020 elsewhere, but credit to the author and this newsletter is expected. Material marked as copy- messaging. You can join the notification chat • March 14 (MIS) righted may not be re-printed without the con- after creating a free account and following this • April 11 (MIS) sent of the author. link, • May 9 (MIS) https://groupme.com/join_group/28013422/zc5IC1 The editor of Total Impulse accepts material for • CrapShoot VI - May 23,24 (tentative) (Muskegon) inclusion from anyone. • June 13 (MIS) Send correspondence to: • July 11 (MIS) Jackson Model Rocket Club Fade To Black Rocket Works • NARAM 62 - July 25 - 31 (Geneseo, NY) Buzz Nau, Editor Heavy Duty Launch Pads For Every Need • August 15 (MIS) E-mail: [email protected] All pads are powder coated for lasting durability • September 19 (MIS) • October 10 (MIS) https://www.facebook.com/fziegler13/ On the Cover: • November 14 (MIS) Concept Mini $119 Concept X-treme $325 NOTE: Launch dates are subject to change without notice. (top) SpaceX Crew Dragon Demo 2 launch with astro- Concept $285 Ground Pounder $345 nauts Bob Behnken and Doug Hurley aboard (bottom - Be sure to call the “launch hotline” at 517.262.0510 for the left) Dan Harrison with one of his fin jigs at NARAM 61 TARC Pad $285 Ground Pounder Heavy $425 latest weather and field information or sign up for the JMRC (bottom - right) AGM-45 Shrike test round on an A-4E +Shipping Notification GroupMe chat. Skyhawk, 1/26/64 - USN photo T OTAL I MPULSE V OLUME 2 0 , N O . 3 Pa g e 3 Steve Kristal For model rockets, straight fins are good. Straighter fins are bet- ter. Straightest fins are best. For sport rockets, fin placement is important. For competition rockets, fin placement is vital. Model rockets fly with 6 degrees of freedom: pitch, roll, and yaw and the 3 axes of translational movement, up/down, left/right, for- ward/backward. Fin placement directly affects pitch, roll, and yaw, which in turn directly affects the other three. Control of pitch, roll, and yaw is crucial to maximize altitude. The things we need to control for optimal fin placement are as follows: Are the fins placed precisely circumferentially around the tube? Are the fins precisely vertical with respect to the vertical axis of the rocket? Are the fins extending from the rocket body at exactly 90 degrees to the body tube? Finally, are all 3 fins shaped and placed exactly the same? For many years there have been tools to help rocketeers place fins. The Fin Qwik, Estes Fin Alignment Guide, Estes Builder’s Marking Guide, BMI fin jig, Macklin Guillotine Fin Jig, Apogee’s laser cut Fin alignment guides, Semroc Joe’s fin jig, etc. While these are helpful for sport rockets, none affords the precise con- trol truly essential to maximum performance in competition rock- The Harrison Fin jig ets. attached to the rocket body, the body is rotated to the next click- Over 30 years ago NAR competitor and U.S. Spacemodeling stop position. Fillets can be applied immediately and are team member Art Rose came up with a solution to precisely plac- perfectly shaped by gravity while the fins and rocket body are at ing fins on competition model rockets. Art was a machinist, and the correct angle.