tandem vector owner's manual

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SIGMA TANDEM SYSTEM OWNER’S MANUAL PROBLEM: Left arm is held. REACTION: If he has your left arm, hit him on the side of his head as hard as you can; he’ll probably let go. If you cannot free your left arm, throw the drogue and release it at the proper altitude. PROBLEM: Both arms are held. REACTION: If a student gets both arms, a quick, rearward extraction movement of both hands can generally free you at once. If unsuccessful, you still have your voice, your head, your teeth and your knees to work with. ANALYSIS: A student that panics is apt to do almost anything. This type of incident has been reported enough times for us to know that it can and will happen again. The best course of action is a preventative one. Keep your arms away from the student in the first place. NEVER PUT A WRIST MOUNTED ALTIMETER IN FRONT OF A STUDENTS FACE. This is an engraved invitation to grab your arm! (See fatality report #6.) Always tell the student during the pre-jump briefing not to grab your arms at any time during the jump. Make it clear what the consequences might be. Tell the student that you will both die an ugly death by “sudden impact trauma” if he does interfere with your ability to pull the operating handles. DROGUE DEPLOYMENT AND RELEASE PROBLEMS A. Pulling the wrong handle B. Unable to extract drogue from pouch C. Un-inflated drogue D. Entanglement with drogue E. Entanglement with the drogue bridle F. Non-collapsed drogue G. Drogue does not release when first handle pulled. A. Pulling the wrong handle: PROBLEM: You have pulled the drogue release handle before deploying the drogue. REACTION: Deploy the drogue immediately. ANALYSIS: If you don’t deploy the drogue promptly, you will of course continue to accelerate towards 170 mph. If you pull the drogue release and the drogue safety pin is in place nothing will happen. B. Unable to extract drogue from pouch: PROBLEM: You are unable to locate the drogue deployment handle or are unable to extract the drogue completely from its pouch. REACTION: Pull the reserve ripcord. 11301 - 00.00.0000 Section 4: Malfunctions & Emergencies • Chapter 1 - Reserve Procedures Page 3:X
SIGMA TANDEM SYSTEM OWNER’S MANUAL ANALYSIS: It is not necessary to pull either the drogue release handle or the breakaway handle first. In this situation, the reserve ripcord should be pulled promptly, before your velocity builds up. The longer you wait, the greater the reserve opening shock. This malfunction can usually be avoided by packing the drogue correctly and by practicing drogue deployment on the ground. C. Un-inflated drogue PROBLEM: Drogue has been deployed and is partially or completely uninflated. REACTION: If the drogue does not inflate within six to eight seconds, pull either one of the drogue release handles to initiate main canopy deployment. ANALYSIS: An uninflated drogue has enough drag to deploy the main canopy although it will take longer than normal to do so. If you wait longer, your velocity will increase. Higher velocities may produce a higher opening shock. D. Entanglement with drogue:(#4/3-117) PROBLEM: The drogue canopy becomes entangled with you, your student or your gear, and does NOT inflate. REACTION: Spend only a few seconds trying to clear the entangled drogue canopy before pulling the reserve ripcord. ANALYSIS: In this situation, your velocity will increase to 170 mph in about 18 seconds. The longer you wait to deploy the reserve, the higher the reserve opening shock will be. E. Entanglement with drogue bridle: (#4/3-118) PROBLEM: The drogue bridle becomes entangled with the jumpers or their gear, and the drogue is fully inflated. REACTION: If you suspect that the drogue bridle is entangled with either person or the gear, do NOT pull the drogue release handle. Instead, deploy the reserve by pulling the reserve ripcord to full extension. ANALYSIS: Velocity will not exceed approximately 120 mph, giving the Tandem Instructor additional time to analyze and correct the problem. The force of the inflated drogue may or may not clear the entanglement. F. Non collapsed drogue: PROBLEM: You pull the drogue handle, but drogue does not collapse. The main canopy will probably open very hard. REACTION: Ascertain whether the main canopy has been damaged by opening shock. If it has, decide whether is it controllable and safe to land. ANALYSIS: If the drogue is still attached and trailing behind the canopy (it will still be inflated), there is probably minimal damage to the top of the canopy. A fully inflated drogue is not a problem, it just adds extra drag, slowing your forward speed. Page 4:X Section 4: Malfunctions & Emergencies • Chapter 1 - Reserve Procedures 11301 - 00.00.0000
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SIGMA TANDEM SYSTEM OWNER’S MANUA
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SECTION 1: THE SIGMA TANDEM SYSTEM
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CHAPTER 2 APPLICANT & COURSE INFORM
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CHAPTER 1 DESCRIPTION
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CHAPTER 2 OPERATION
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CHAPTER 3 RESERVE CONTAINER
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CHAPTER 4 MAIN CONTAINER
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tandem vector owner's manual

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