The evaluation of training effectiveness （TE） of military training aircraft, though obviously very important, appears to have attracted much less attention than what it deserves in the open literature. This article ...The evaluation of training effectiveness （TE） of military training aircraft, though obviously very important, appears to have attracted much less attention than what it deserves in the open literature. This article aims to start from previous studies and explore further. First, TE of military training aircraft is discussed and our ideas for evaluating TE which are expressed mathematically are proposed. Then, using the presented mathematical models, software is developed that takes into consideration the influence of parameters of flight performance and quality on TE. The software＇s environment is Borland C＋＋ and it sets up the parameters of trainer, training standard databases and training documents; it can analyze and then give the operational cost and cost-effectiveness ratio of military trainer. Finally, the software is utilized to compare the TEs of HAWK and MB339 with that of Chinese Air Force TF-6. The results of comparison show that the TE of TF-6 is the lowest.展开更多
With the cost estimation of military aircraft as the research object, this paper aims to study the contradiction between the choice of explanatory variables in index modeling and the maintaining of model validity. It ...With the cost estimation of military aircraft as the research object, this paper aims to study the contradiction between the choice of explanatory variables in index modeling and the maintaining of model validity. It analyzes and establishes a cost estimation modeling concept based on an Effectiveness Index and studies the way to construct Effectiveness Indexes for the sake of cost estimation modeling. Based on a case study, the paper establishes and analyzes the Effectiveness Index-based cost estimation models and DAPCA （Development And Procurement Costs of Aircraft） models developed by the RAND Corparation . The comparison of these models shows that the Effective- ness Index-based cost parameter models not only comprehensively consider the obvious driving parameter indexes of the cost, but reduces the variables of regressive analysis, hence giving the model a higher reliability.展开更多
Since the Carter administration launched the“Freedom of Navigation Program”(FON Program)in 1979,the United States has been conducting“Freedom of Navigation Operations”(FONOPs)and frequently dispatching warships an...Since the Carter administration launched the“Freedom of Navigation Program”(FON Program)in 1979,the United States has been conducting“Freedom of Navigation Operations”(FONOPs)and frequently dispatching warships and military aircraft into waters under the jurisdiction of other coastal States to challenge the so-called“excessive maritime claims.”1 According to official statistics from the US Department of Defense,during fiscal year 2023 alone,the US FONOPs challenged 29“excessive maritime claims”by 17 coastal States,an increase from the 22“excessive maritime claims”by 15 coastal States challenged in FY2022.2 The US“freedom of navigation”frequently causes unnecessary frictions.In several severe cases,it leads to maritime and aerial accidents.展开更多
INDONESIA Search and rescue teams work at the site of a military C-130 Hercules aircraft crash in Medan on June 30.The crashed plane exploded in a residential area,killing at least 142 people on board and on the groun...INDONESIA Search and rescue teams work at the site of a military C-130 Hercules aircraft crash in Medan on June 30.The crashed plane exploded in a residential area,killing at least 142 people on board and on the ground as of July 1展开更多
文摘The evaluation of training effectiveness （TE） of military training aircraft, though obviously very important, appears to have attracted much less attention than what it deserves in the open literature. This article aims to start from previous studies and explore further. First, TE of military training aircraft is discussed and our ideas for evaluating TE which are expressed mathematically are proposed. Then, using the presented mathematical models, software is developed that takes into consideration the influence of parameters of flight performance and quality on TE. The software＇s environment is Borland C＋＋ and it sets up the parameters of trainer, training standard databases and training documents; it can analyze and then give the operational cost and cost-effectiveness ratio of military trainer. Finally, the software is utilized to compare the TEs of HAWK and MB339 with that of Chinese Air Force TF-6. The results of comparison show that the TE of TF-6 is the lowest.
文摘With the cost estimation of military aircraft as the research object, this paper aims to study the contradiction between the choice of explanatory variables in index modeling and the maintaining of model validity. It analyzes and establishes a cost estimation modeling concept based on an Effectiveness Index and studies the way to construct Effectiveness Indexes for the sake of cost estimation modeling. Based on a case study, the paper establishes and analyzes the Effectiveness Index-based cost estimation models and DAPCA （Development And Procurement Costs of Aircraft） models developed by the RAND Corparation . The comparison of these models shows that the Effective- ness Index-based cost parameter models not only comprehensively consider the obvious driving parameter indexes of the cost, but reduces the variables of regressive analysis, hence giving the model a higher reliability.
文摘Since the Carter administration launched the“Freedom of Navigation Program”(FON Program)in 1979,the United States has been conducting“Freedom of Navigation Operations”(FONOPs)and frequently dispatching warships and military aircraft into waters under the jurisdiction of other coastal States to challenge the so-called“excessive maritime claims.”1 According to official statistics from the US Department of Defense,during fiscal year 2023 alone,the US FONOPs challenged 29“excessive maritime claims”by 17 coastal States,an increase from the 22“excessive maritime claims”by 15 coastal States challenged in FY2022.2 The US“freedom of navigation”frequently causes unnecessary frictions.In several severe cases,it leads to maritime and aerial accidents.
文摘INDONESIA Search and rescue teams work at the site of a military C-130 Hercules aircraft crash in Medan on June 30.The crashed plane exploded in a residential area,killing at least 142 people on board and on the ground as of July 1
