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Author Topic: New Chinook rotor blades rattle troops in early testing  (Read 372 times)

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rangerrebew

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New Chinook rotor blades rattle troops in early testing
« on: January 29, 2021, 11:24:23 am »

New Chinook rotor blades rattle troops in early testing
AvatarBy Dan Parsons | January 28, 2021
 

A centerpiece technology of Boeing’s Block II upgrades for the U.S. Army’s CH-47F Chinook helicopter produces excessive vibration that poses a risk to crewmembers, the U.S. Army found during flight testing.

Experimental versions of the CH-47 Block II aircraft flew a total 387 developmental test hours in fiscal 2020, which ended Oct. 1. During that testing, the advanced Chinook rotor blade (ACRB) produced “excessive vibrations in various flight profiles across the Block II’s performance envelope,” according to the annual weapon systems report published in January by the U.S. Defense Department’s director of test and evaluation (DOT&E).

Block II Chinooks feature technological advancements to extend the fleet’s service life and enhance performance. Boeing Photo

“The most recent ACRB design produces excessive vibrations in ground, hover, and forward flight that may cause a safety of flight risk,” the report said. “Aircrews reported prolonged fatigue and other physiological conditions due to excessive vibrations following a developmental test flight using the redesigned ACRBs.”

https://verticalmag.com/news/new-chinook-rotor-blades-rattle-troops-early-testing/
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Offline PeteS in CA

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Re: New Chinook rotor blades rattle troops in early testing
« Reply #1 on: January 29, 2021, 03:38:10 pm »
Quote
... excessive vibrations in various flight profiles ...

This would also screw up durability. I don't think failure to fix the problem will fly.
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rangerrebew

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Re: New Chinook rotor blades rattle troops in early testing
« Reply #2 on: January 30, 2021, 12:23:38 pm »
Quote from: PeteS in CA on January 29, 2021, 03:38:10 pm
This would also screw up durability. I don't think failure to fix the problem will fly.

Is that an intentional pun? :shrug:
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Offline christian

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Re: New Chinook rotor blades rattle troops in early testing
« Reply #3 on: January 30, 2021, 12:42:41 pm »
The old Chinooks were unpleasant enough to fly-ride in, and the engines would catch fire in flight and you had to emergency land.  Most farmers never knew we used their fields.
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Offline PeteS in CA

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Re: New Chinook rotor blades rattle troops in early testing
« Reply #4 on: January 30, 2021, 03:27:41 pm »
Quote from: rangerrebew on January 30, 2021, 12:23:38 pm
Is that an intentional pun? :shrug:

Double meaning: pun; I don't think the test program manglers would be so stupid as to allow an obvious mechanical defect to go unfixed.
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If, as anti-Covid-vaxxers claim, https://www.poynter.org/fact-checking/2021/robert-f-kennedy-jr-said-the-covid-19-vaccine-is-the-deadliest-vaccine-ever-made-thats-not-true/ , https://gospelnewsnetwork.org/2021/11/23/covid-shots-are-the-deadliest-vaccines-in-medical-history/ , The Vaccine is deadly, where in the US have Pfizer and Moderna hidden the millions of bodies of those who died of "vaccine injury"? Is reality a Big Pharma Shill?

Millions now living should have died. Anti-Covid-Vaxxer ghouls hardest hit.

rangerrebew

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Re: New Chinook rotor blades rattle troops in early testing
« Reply #5 on: January 31, 2021, 12:26:07 pm »
Quote from: PeteS in CA on January 30, 2021, 03:27:41 pm
Double meaning: pun; I don't think the test program manglers would be so stupid as to allow an obvious mechanical defect to go unfixed.

Never underestimate the stupidity of government. :nono:
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