This week, three Aerospace and Defense stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

CPI Aerostructures (AMEX:CVU) ups its rating to a B (“buy”) this week after earning a C (“hold”) in the week before. CPI Aerostructures engages in the contract production of structural and other aircraft parts for prime defense contractors, the United States Air Force, and other branches of the armed forces. In Portfolio Grader’s specific subcategories of Earnings Growth, Cash Flow, and Margin Growth, CVU also gets A’s. The stock currently has a trailing PE Ratio of 7.40. For more information, get Portfolio Grader’s complete analysis of CVU stock.

SIFCO Industries (AMEX:SIF) earns a B this week, jumping up from last week’s grade of C. SIFCO Industries is engaged in the production and sale of a variety of metalworking processes, services and products produced primarily to the specific design requirements of its customers. For more information, get Portfolio Grader’s complete analysis of SIF stock.

Honeywell (NYSE:HON) gets a higher grade this week, advancing from a C last week to a B. Honeywell International is a worldwide diversified technology and manufacturing company providing aerospace products and services, control, sensing and security technologies, turbochargers, automotive products, specialty chemicals, electronic and advanced materials, process technology for refining and petrochemicals, and energy efficient products and solutions. For more information, get Portfolio Grader’s complete analysis of HON stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.