美国LRS-B轰炸机估计就是缩小版的B-2

2010年美国2018 Bomber研制计划下马，一方面是因为预算的问题，另一方面是空军对无人轰炸机的迷信

RQ-170无人侦察机折戟伊朗以后，美国空军又开始研讨下一代有人轰炸机的问题，据说这个计划叫“LRS-B”，即Long Range Strike B System

我从维基上面了解了一些公开披露的信息，感觉比较失望！

美国下一代轰炸机强调的还是隐身、大航程、亚音速巡航、双发和中等载弹量

这样的轰炸机我估计很可能是缩小版的B-2，强调全球部署能力，较低的维护成本

总体而言缺乏竞争力！！！


Design
The design goals in January 2011 were:[56]

Total program cost estimated at $40 to $50 billion[56]
Fleet size of 175 aircraft, 120 for 10 combat squadrons plus 55 for training and reserves[56]
Subsonic maximum speed
Range: 5,000+ nautical miles (9,260+ km)[56]
"optionally manned" (for non-nuclear missions)[56]
Total mission durations of 50 to 100 hours (when unmanned)[56]
A weapons load of 14,000–28,000 lb (6,350–12,700 kg)[56]
Ability to "survive daylight raids in heavily defended enemy territory"[57]
Ability to carry nuclear weapons[56]
Designed to use off-the-shelf propulsion, C4ISR, and radar technologies[58]
Intelligence, surveillance, target acquisition, and reconnaissance along with command and control gear to enable the crew to direct other aircraft and forces.[59]
An August 2008 paper by Northrop Grumman highlighted the following trends and requirements:[60]

Airfields available for American use have declined since the Cold War.
Hostile cruise and ballistic missiles could shut down the few available airfields.
Fewer fighter aircraft will be available to escort the bomber force.
Advanced fighter aircraft and surface to air missiles are being made available to potentially hostile states.
The current USAF bomber force is small and largely outdated.
2010年美国2018 Bomber研制计划下马，一方面是因为预算的问题，另一方面是空军对无人轰炸机的迷信

RQ-170无人侦察机折戟伊朗以后，美国空军又开始研讨下一代有人轰炸机的问题，据说这个计划叫“LRS-B”，即Long Range Strike B System

我从维基上面了解了一些公开披露的信息，感觉比较失望！

美国下一代轰炸机强调的还是隐身、大航程、亚音速巡航、双发和中等载弹量

这样的轰炸机我估计很可能是缩小版的B-2，强调全球部署能力，较低的维护成本

总体而言缺乏竞争力！！！


Design
The design goals in January 2011 were:[56]

Total program cost estimated at $40 to $50 billion[56]
Fleet size of 175 aircraft, 120 for 10 combat squadrons plus 55 for training and reserves[56]
Subsonic maximum speed
Range: 5,000+ nautical miles (9,260+ km)[56]
"optionally manned" (for non-nuclear missions)[56]
Total mission durations of 50 to 100 hours (when unmanned)[56]
A weapons load of 14,000–28,000 lb (6,350–12,700 kg)[56]
Ability to "survive daylight raids in heavily defended enemy territory"[57]
Ability to carry nuclear weapons[56]
Designed to use off-the-shelf propulsion, C4ISR, and radar technologies[58]
Intelligence, surveillance, target acquisition, and reconnaissance along with command and control gear to enable the crew to direct other aircraft and forces.[59]
An August 2008 paper by Northrop Grumman highlighted the following trends and requirements:[60]

Airfields available for American use have declined since the Cold War.
Hostile cruise and ballistic missiles could shut down the few available airfields.
Fewer fighter aircraft will be available to escort the bomber force.
Advanced fighter aircraft and surface to air missiles are being made available to potentially hostile states.
The current USAF bomber force is small and largely outdated.