In certain training or educational situations, a system may be installed to mitigate excessive descent speed or loss of control. Remember: any excessive pull on the MAESTRO’s handle can cause a loss of control. To secure the rope against possible loss of control, attach an ASAP with ASAP’SORBER AXESS or ABSORBICA L57 energy absorber to …
Securing the PETZL MAESTRO with an ASAP for training. Read More »
PETZL MAESTRO (Small and Large) is a descender designed for technical rescue operations. It facilitates the manipulation of heavy loads, for lowering or hauling, and may be used in both the primary system or in a back-up belay. This versatility allows rescuers to adapt to any situation they may encounter on the rescue scene. The …
Petzl Maestro – An Amazing Tool For Technical Rescue Operations Read More »
The following tests were carried out in laboratories, with new devices and new ropes certified to current standards. Test results are given for information purposes only: they may be different with devices and/or ropes that are worn from use, or with other rope types or models. STATIC TESTS Slow-pull test carried out on different ropes; …
The PETZL MAESTRO is a descent control device with an integral progress capture pulley for technical rescues. Additional MAESTRO benefits include: Shifting from a haul to lower is immediate and efficient without having to transfer the load Can efficiently haul and lower heavy loads Serve as the primary or back-up system A small hole on …
From Gear In Use: Technical Rescue ~ 5.1 Drop loop haul on the MAESTRO for urgent rescue In certain cases of extreme urgency requiring a very rapid response, the rescuer can access the victim by descending on one rope. Once the emergency has been addressed, upward evacuation can be done at a “normal” level of …
There can be a big difference between the theoretical efficiency of a pulley system and its actual efficiency. Here are test results from the Petzl lab. From Gear In Use 4: Rope Access and Confined Space 1. Efficiency depending on the device used at the head of the system. The force required to raise a …
Pulley system efficiency tests with MAESTRO, I’D S, PRO TRAXION, ROLLCLIP… Read More »
MAESTRO and I’D allow for efficient hauling, releasing the lock at any time and a controlled lower of the load. The two devices have different ergonomics and different specifications (working load and efficiency). Hauling The MAESTRO’s efficiency enables effective use of simple pulley systems. If a complex pulley system is needed to increase efficiency, it …
The MAESTRO, I’D or RIG descenders can be used in parallel in rescue situations, mainly with long rope lengths and smaller rescue teams. This technique enables a single user to simultaneously operate two devices. Advantages Even sharing of the load on the descenders Reduced potential extension of the system, in case one of the …
Two MAESTRO, I’D or RIG (used in parallel by a single operator) Read More »
Excerpt from Gear In Use 2: Technical Rescue MAESTRO and I’D allow for efficient hauling, releasing the lock at any time, and a controlled lower of the load. The two devices have different ergonomics and different specifications (working load and efficiency). Hauling The MAESTRO’s efficiency enables the effective use of simple pulley systems. If a …
Comparison between MAESTRO and I’D for a rescue using twin tensioned haul lines Read More »
The MAESTRO combines the abilities of a progress-capture pulley and a descender for effective hauling, releasing and lowering of the load. The AUTO-LOCK system locks the load automatically and returns the handle to the stop position. Let’s start with a Petzl Maestro Overview! 1. Working principle The MAESTRO uses a pulley mounted on a …
