Ce que le fil a révélé

• Un tir de véhicule est deux problèmes de gréement séparés, et le second est celui qui est sauté. La plate-forme doit être fixée au véhicule et l'opérateur doit être attaché au véhicule. Les traiter comme un travail, c'est comment les gens finissent par tenir les bras à la vitesse.
• Pour la plate-forme, la réponse établie est une monture de véhicule, toujours appelée monture Garfield. Jerry Hill et Walter Klassen font tous les deux un, et un mont Klassen a été cité à environ 800 USD. Ce qu'ils font est d'adapter le socket block du gilet à quelque chose que le véhicule a déjà: le rail de vitesse, une plaque Mitchell, un récepteur de 2 pouces, ou le montage Moy d'un bazooka. Parce que ce n'est qu'un adaptateur, le même support sert les jambes, les hauts chapeaux, les poupées et les voitures de caméra.
• Les montures improvisées sont courantes et déclarées comme fonctionnant : rail de vitesse avec le socket block démonté son propre gilet, ou une planche boulonnée dans un lit de camion avec un poteau debout verticalement dessus. Ce qui n'est jamais improvisé dans les rapports est l'attachement propre de l'opérateur.
• Pour l'opérateur, un harnais complet plutôt qu'un demi-harnais, avec des points d'ancrage à l'épaule et à la taille, de sorte qu'un arrêt d'urgence ne vous déchire pas du gréement. Les harnais Petzl sont nommés à plusieurs reprises.
• The leash must be short enough that a fall cannot turn into being dragged. One warning is specific and easy to miss: climbing daisy chains are popular for this, but their inner loops are not rated for fall protection. If one fails in an accident it releases enough slack to drag the operator.
• Plan the release, not just the attachment. One operator describes losing the production's patience because after every take he had to wait to be disengaged. An hour spent rigging safely at half past five in the morning is defensible; ten minutes lost after each take is what makes a producer push.
• Suspension travel is the underrated danger. Over bumps the operator can float off the platform and come down again, and the arm's roughly 30 inches of range is no guarantee: the motions can combine and exceed it. Restraint has to hold you down as well as back.
• Reported working speeds, as a range rather than a rule: about 35 km/h alongside a horse on grass, 55 mph described by one operator as already fast, 65 mph across a bridge where the expansion joints were punishing and left sore arms the next day, and 70 mph from an insert car behind a substantial windbreak. Surface matters more than the number — grass and unsealed track mean bumps, and one operator found the ride actually smoothed out once up to speed.
• Rigging and driving are separate trades. The repeated advice is not to let whoever happens to own the quad or the gator drive or rig it. That is a grip's and a stunt driver's job, and the reason those people are paid is the same reason nobody else operates your rig.
• For car work specifically, the archive is blunt that the stabilizer is not the right tool. One operator who makes roughly a third of his living shooting cars ranks the options: Russian arm first, then a stabilised remote head such as a Libra hard-mounted, then a camera car with a crane, then a hard-mounted camera on a fluid head, then a minivan with a hard mount, and only then handheld or stabilizer. He states that none of his car work is done on a stabilizer. When the request is a car commercial, that ranking is the answer, not the mount.
• Where the stabilizer on a vehicle does earn its place is the shot the other tools cannot do: a continuous take that begins or ends off the vehicle. Operators describe sitting on a bumper held by three grips while a subject rides away, and walk-on and sit-on shots where the operator boards the moving platform mid-take.

Dépend de

• The speeds above are what individual operators report having worked at, not limits anyone has established. They depend on the surface, the vehicle's suspension, the driver, the lens and how much of the frame can be allowed to move. They are a sense of scale, not a permission.
• No harness, mount or rigging described here is a substitute for a rigging grip and, where the speed warrants it, a stunt coordinator on the day.
• Prices and suppliers are as reported in the archive and are years old. Treat the 800 USD figure as an order of magnitude.
• The archive contains no report of a purpose-built off-road vehicle rig with one day of preparation, which is the situation that prompted this entry. What it offers is the general shape of the problem and the failure modes, not a recipe for that vehicle.

Pièces

Hard Mount

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