Ref blast and overpressure effects on towed gun dets: Canada only began testing for this with the M777 last year
Yet another thing I looked after in DLR was artillery ancillary eqpt, including PPE. I had tried to get testing done back in the 2010's, but it kept getting delayed due to resource limitations. So the max daily (rds) exposure limits given in Range Training Safety, based on the M109, remained the sole ref for 155mm fire for years after the M777 came into use and the M109 was long gone
To any Gnr that operated on the M777 fighting VAC over hearing loss, PM me, I'd be glad to help
Yet another thing I looked after in DLR was artillery ancillary eqpt, including PPE. I had tried to get testing done back in the 2010's, but it kept getting delayed due to resource limitations. So the max daily (rds) exposure limits given in Range Training Safety, based on the M109, remained the sole ref for 155mm fire for years after the M777 came into use and the M109 was long gone
To any Gnr that operated on the M777 fighting VAC over hearing loss, PM me, I'd be glad to help