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Murfreesboro, TN  37127

Blog

Controlling Hoist Oscillation – Advanced Techniques

We previously published an article entitled, “Controlling Hoist Oscillation – It’s All About Cable Length.” Be sure to read that article before this one. In that article, we discussed the basics of pendulum control. We introduced a pendulum simulator known as the PhET simulator from the University of Colorado, Boulder – a great online tool that allows users to experiment with controlling pendulum movement. We noted that changing the weight of the object has absolutely no effect on the oscillation. However, changing the length of the cable does affect oscillation and that effect can be significant. In fact, the greater…
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Orphan Pendants

As part of all the thermal testing on the pendants, a number of pendants have been left “homeless” at Breeze-Eastern. The pendants were either sent in without paperwork or the paperwork was misplaced. At any rate, if you sent pendants to Breeze-Eastern and have not heard anything back on them, use the Contact Us page to send the serial number(s) to us. You will be provided a status update. If your pendant happens to be one of the “orphan” pendants, they’ll get that shipped out right away.
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Four-Strand LUE #3 Underway at NTC

The third Limited User Evaluation (LUE) for the Four-Strand cable is well underway in the middle of the Mojave Desert, with the US Army Air Ambulance Detachment from the National Training Center (NTC) hosting the event. Phase I of the evaluation was completed 23-25 JUL 2019 by C Co, 2916th Avn Bn, Ft. Irwin, CA. Phase II of the evaluation will run for 90 days. The new hoist weight system (aka, “lift bag kit”) is also featured in some of the photos below.
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Check Roller Housing Set Screws on Preflight

The BL-29900-30-1 external rescue hoist has a roller housing attached to the bottom of the cable guide assembly. The roller housing “houses” or “contains” a roller assembly, with four rollers that allow for fleet angle operations up to 30-deg. The roller housing attaches to the bottom of the cable guide assembly with three small 1/16” set screws. Over the past several years, there have been two reported instances of the three roller housing set screws backing out to the point that the roller housing disengages from the bottom of the cable guide assembly. This is not a load-bearing part of…
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Controlling Oscillation – It’s All About Cable Length

“Spin,” “swing,” and “oscillation” – what’s the difference? When it happens, is there anything I can do about it? Good questions! And knowing the answers to those questions can mean the difference between life and death. A spin is the rotation of an object around the long axis of the cable. Considerable rotational forces are generated whenever the cable is placed under tension or when the length of the cable changes. We have a swivel bearing at the end of the cable to assist in relieving those forces. The downside to that is that anything below the swivel bearing is…
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Minimum Essential Tools

for the BL-29900-30-1 Rescue Hoist. “Technology is nothing. What’s important is that you have faith in people, that they’re basically good and smart, and if you give them tools, they’ll do wonderful things with them.”Steve Jobs I think Steve Jobs hit the proverbial nail on the head with that hammer of a statement! And we’ve all heard, “The right tool…for the right job…in the right way.” Well, this article is about equipping you with the right tools for properly maintaining the BL-29900-30-1 rescue hoist. Using them in the right way? Well, that’s where we’ll lean on your experience and perhaps…
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Hoist Workshops a Huge Success

Hoist Workshops a Huge Success

Since the beginning of FY19, we’ve completed two hoist workshops on-site in Whippany, NJ, one hoist workshop at Redstone Arsenal (hosted by PD MEDEVAC), as well as separate hoist training events at Ft. Bliss; Jackson, MS (MS-ARNG); and Williamstown, WV (WV-ARNG). All total, that is 81 students armed with greater confidence in maintaining the BL-29900-30-1 hoist. In additional to the scheduled, recurring hoist workshops, as of the date of this article we have training scheduled for the Texas Army National Guard, Ft. Campbell, and potentially, Alaska. All of our hoist workshops have been a huge success, but the remainder of…
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Application of Power

There is a very important but little-known WARNING in the BL-29900-30-1 Operation and Maintenance Manual (OMM) regarding the application of power to the hoist that every user needs to be aware of. This WARNING would actually be defined as a CAUTION by Army Technical Manual (TM) definitions, because we’re not talking about loss of life or injury but damage to equipment. The OMM states: Damage will occur to the rescue hoist system if DC power is present along with an operator command from the pilot, crew control (if applicable), or the pendant and then AC power is applied. Power should…
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The Origin of 19-AMAM-01

If you have not done so already, I recommend that before reading this article, you first read my related article entitled, "Summary of Safety Messages." As I mentioned in that article, we found that a lot of our problems with the hoist were self-induced. What I meant by that was that we were either not following GOOD guidance from the Army TMs, or we were following BAD guidance from the TMs, or both. I know that sounds confusing, so let me put it another way. The Army TMs have a lot of good information related to the hoist, but some…
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Summary of Safety Messages

If you've been around the Breeze-Eastern BL-29900-30-1 external rescue hoist for the last 3-4 years, you know that there has been a flurry of safety messages that have somehow been related to that hoist. It's enough to make someone wonder if the hoist is even safe to use. This article will provide a detailed answer to that question but first, let me state unequivocally and up front that the BL-29900-30-1 hoist has served the Army for 25+ years - going all the way back to the UH-60Q days - and has had an EXCEPTIONAL safety record. There is no question…when…
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