MCAIR Design Philosophy for Fighter Aircraft Departure and Spin Resistance

A Case of Structural Integrity of Ageing Fighter Aircraft Leveraging on Condition Maintenance Methodology

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.217-219.2560 ◽

2012 ◽

Vol 217-219 ◽

pp. 2560-2565

Author(s):

Bilal Younus ◽

Bilal Farooq ◽

Ahmed Jamal ◽

Irfan Anjum Manarvi

Keyword(s):

Structural Integrity ◽

Aircraft Design ◽

Extensive Study ◽

Aviation Industry ◽

Aircraft Maintenance ◽

Fighter Aircraft ◽

Engineering Technology ◽

Design Philosophy ◽

Manufacturing Techniques ◽

Technology Advances

In recent years aircraft maintenance practices have been influenced by changes in aircraft design philosophy and improvements in engineering technology. Advances in manufacturing techniques and material specifications have made it less necessary to carry out frequent disassembly of aircraft and components to establish confidence. The need to be competitive and to reduce costs has meant that the aviation industry has sought to gain advantage from these improvements by moving from time consuming and cost extensive, invasive maintenance to a philosophy of on condition maintenance (OCM). The research is aimed at highlighting an OCM based maintenance methodology by carrying out an extensive study on structural integrity of various vintage Chinese fighter aircraft. The study finds that the structure of Chinese fighter aircraft is robust and is capable of flying for more hours/years than specified by OEM. The study will help air forces operating the ageing Chinese fighter aircraft in extending the lives of their respective fleets well beyond the OEM prescribed limits.

Download Full-text

Effects of Fatigue on Cognitive Performance in Long-Duration Simulated Flight Missions

Aviation Psychology and Applied Human Factors ◽

10.1027/2192-0923/a000191 ◽

2020 ◽

Vol 10 (2) ◽

pp. 82-93

Author(s):

Eduardo Rosa ◽

Ola Eiken ◽

Mikael Grönkvist ◽

Roger Kölegård ◽

Nicklas Dahlström ◽

...

Keyword(s):

Executive Functions ◽

Task Performance ◽

Cognitive Performance ◽

Cognitive Tasks ◽

Fatigue Index ◽

Fighter Aircraft ◽

Long Duration ◽

Metacognitive Accuracy

Abstract. Fighter pilots may be exposed to extended flight missions. Consequently, there is increasing concern about fatigue. We investigated the effects of fatigue and cognitive performance in a simulated 11-hr mission in the 39 Gripen fighter aircraft. Five cognitive tasks were used to assess cognitive performance. Fatigue was measured with the Samn–Perelli Fatigue Index. Results showed that performance in the non-executive task degraded after approximately 7 hr. Fatigue ratings showed a matching trend to the performance in this task. Performance in tasks taxing executive functions did not decline. We interpreted that fatigue can be overridden by increased attentional effort for executive tasks but not for non-executive components of cognition. Participants underestimated their performance and metacognitive accuracy was not influenced by fatigue.

Download Full-text