{"id":6688,"date":"2023-12-01T08:28:45","date_gmt":"2023-12-01T08:28:45","guid":{"rendered":"https:\/\/monroeaerospace.com\/blog\/?p=6688"},"modified":"2023-12-01T08:28:47","modified_gmt":"2023-12-01T08:28:47","slug":"low-vs-high-bypass-turbofan-engines-whats-the-difference","status":"publish","type":"post","link":"https:\/\/monroeaerospace.com\/blog\/low-vs-high-bypass-turbofan-engines-whats-the-difference\/","title":{"rendered":"Low vs High Bypass Turbofan Engines: What’s the Difference?"},"content":{"rendered":"
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\"Airplane<\/figure>\n<\/div>\n\n\n

The turbofan has become the most common type of jet engine used in airplanes. Whether it’s a civilian, commercial or military jet, it may feature one or more turbofans. Also known as a fanjet, a turbofan is a type of airbreathing jet engine that leverages both combustion and a ducted fan to generate propulsion.<\/p>\n\n\n\n

While all turbofans use combustion and a ducted fan to generate propulsion, they are available in different types. There are low-bypass and high-bypass turbofans, for instance. For a better understanding of low- and high-bypass turbofans, including how they differ, keep reading.<\/p>\n\n\n\n

What Is a Low-Bypass Turbofan?<\/h2>\n\n\n\n

A low-bypass turbofan is a type of jet engine that sucks more air into the combustion chamber than that of a high-bypass turbofan. All turbofans have a bypass ratio. The bypass ratio of a turbofan represents the amount of air that travels around the combustion chamber relative to the amount of air that enters the combustion chamber. <\/p>\n\n\n\n

With a turbofan, some of the air will bypass the combustion chamber. Low-bypass turbofans live up to their namesake by allowing less air to bypass the combustion chamber than high-bypass turbofans.<\/p>\n\n\n\n

What Is a High-Bypass Turbofan?<\/h2>\n\n\n\n

A high-bypass turbofan is a type of jet engine that sucks less air into the combustion chamber than that of a low-bypass turbofan. It’s characterized by a high bypass ratio. <\/p>\n\n\n\n

During flight, some of the air will enter the turbofan’s combustion chamber, and some of the air will go around or “bypass” the turbofan’s combustion chamber. High-bypass turbofans allow less air to enter the combustion chamber compared to low-bypass turbofans.<\/p>\n\n\n\n

Differences Between Low- and High-Bypass Turbofans<\/h2>\n\n\n\n

All turbofans have a bypass ratio. As previously mentioned, it’s a ratio of the amount of air entering the combustion chamber relative to the amount of air that goes around the combustion chamber. Low-bypass turbofans have a low bypass ratio, whereas high-bypass turbofans have a high bypass ratio.<\/p>\n\n\n\n

Low- and high-bypass turbofans are designed differently. To allow more air to enter the combustion chamber, high-bypass turbofans feature a larger ducted fan. The large ducted fan will guide air around the engine’s core, resulting in a high bypass ratio. Low-bypass turbofans, in comparison, feature a smaller ducted fan.<\/p>\n\n\n\n

Another difference between low- and high-bypass turbofans is efficiency. High-bypass turbofans are typically more efficient than their low-bypass counterparts. They consume less fuel — and they produce fewer emissions — making them a popular choice among commercial airlines.<\/p>\n\n\n\n

While most commercial jets use high-bypass turbofans, military jets often use low-bypass turbofans. This is because low-bypass turbofans are more powerful. They produce more jet thrust than high-bypass turbofans.<\/p>\n","protected":false},"excerpt":{"rendered":"

The turbofan has become the most common type of jet engine used in airplanes. Whether it’s a civilian, commercial or military jet, it may feature one or more turbofans. Also known as a fanjet, a turbofan is a type of … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":6689,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-6688","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aerospace-engineering"],"acf":[],"_links":{"self":[{"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/posts\/6688","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/comments?post=6688"}],"version-history":[{"count":6,"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/posts\/6688\/revisions"}],"predecessor-version":[{"id":6695,"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/posts\/6688\/revisions\/6695"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/media\/6689"}],"wp:attachment":[{"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/media?parent=6688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/categories?post=6688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/monroeaerospace.com\/blog\/wp-json\/wp\/v2\/tags?post=6688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}