Cirrus Airframe Parachute System and Odds of a Fatal Accident in Cirrus Aircraft Crashes

Alaziz, Mustafa; Stolfi, Adrienne; Olson, Dean M.

doi:10.3357/amhp.4679.2017

Cited by 6 publications

(2 citation statements)

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“…The current data supports a modest improvement in GA safety over the past few decades and while new technology may be improving situation awareness and overall safety, the high price of these more advanced aircraft means that old airframes (prone to metal fatigue from decades of flight) are likely to remain in the sky for years to come (Boyd, 2017). While the Ballistic Parachute Recovery System (BPRS), made popular by Cirrus, has demonstrated effectiveness in reducing fatality after a wide variety of accident conditions but these systems are expensive to maintain and expensive to retrofit in older aircraft (Alaziz et al, 2017). These aging training aircraft are currently operated past the service life for which they were originally designed so there is an inherent concern for structural integrity (Jaya et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Wing Separation and Mid-Air Breakup in Light Training Aircraft

Hirabayashi

2021

Aviation

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Despite increasing discussions concerning the recently published wing spar airworthiness directive (AD) that affects many training aircraft and several current ADs for wing struts, there remains limited objective literature on incidents of wing separation or mid-air breakup. This paper attempts to report and analyse instances of wing separation and mid-air breakup of light training aircraft. A careful review of the United States National Transportation Safety Board (NTSB) aircraft accident database revealed that wing separations were more likely occur as mid-air breakup in PA28s than 172s/182s (OR: 3.06, 95 % CI: 1.3682 to 6.8536, p = .008). Additionally, wing separations were less likely to occur as mid-air breakups in the strutted 172s/182s than 177s/210s that don’t have a wing strut (OR: 0.11, 95 % CI: 0.04 to 0.29, p = <.001). This implies that non-strutted wing designs may be more susceptability to mid-air breakup than the strutted design of similar aircraft.

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Section: Introductionmentioning

confidence: 99%

Analysis of Wing Separation and Mid-Air Breakup in Light Training Aircraft

Hirabayashi

2021

Aviation

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“…The BPRS deployment determines two major operational changes: aircraft descent no longer requires pilot control, and speed is reduced before the impact. 7,8 Nowadays, Cirrus Corporation equips many of its aircraft with this recovery system, the socalled Cirrus Airframe Parachute System (CAPS). [9][10][11] Experimental tests with the Cirrus SR20 aircraft can be observed in Figure 1.…”

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confidence: 99%

Parachute emergency landing simulation and enhanced composite material characterization for General Aviation aircraft

Mauro

Gagliardi

Guida

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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General Aviation (GA) aircraft crashworthiness of the vehicle when it hits the ground after the parachute deployment is an important issue. The current dynamic emergency landing regulation (CS 23.562) defines the maximum human tolerant accelerations under both vertical and horizontal directions. This article aims to compare two different aircraft configurations: metal low-wing and composite high-wing ones. Both are two-seats and single-engine GA aircraft. The purpose of the analysis is to check whether the seats and restraint systems met human injury tolerance standards and to determine the possible impact on passengers in the cabin space due to shock loads. Finite element analysis of the fuselage sections for both configurations is performed using the commercial LS-Dyna solver. An extensive campaign of experimental tests has been performed on the composite samples for tuning and validating the model and to find the transition from an undamaged up to totally collapsed sample. The material of the composite fuselage has been characterized through experimental tests. The adopted material model has been refined to match with the performed experimental analysis, allowing high-fidelity modeling. A parametric analysis has been performed to determine the optimal impact angle in terms of lumbar injuries and loads transmitted by the seat belt due to aircraft contact with the ground, thereby increasing the level of safety. The investigations carried out may be an important indicator of the design of the parachute system.

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