On the Internet today (10 November 2020) at a blog site called the SANDBOXX News (https://www.sandboxx.us/blog/), there appeared a very interesting, at least to this author, post. It was entitled, B-1B Gunship: Boeing’s plan to put big guns on the Lancer. It was written by Alex Hollings, a former Marine specializing in foreign policy and defense technology analysis. Fundamentally it advanced the concept of converting the Rockwell B-1B Lancer Bomber from a supersonic heavy payload bomber to a high performance version of the Lockheed AC-130H and J Spectre Gunships. With full acknowledgement and expressed gratitude to both the SANDBOXX and Alex Hollings the entire article is repeated herein;
B-1B Gunship: Boeing’s plan to run big guns on the Lancer
Alex Hollings | November 9, 2020
The Rockwell B-1B Lancer is a viable sweep-wing bomber straight out of the Cold War, complete with massively powerful engines that grant it both immense speed and a payload capacity that exceeds that of the gargantuan B-52 Stratofortress. The first B-1 took to the skies in 1974, but the platform itself didn’t enter service until more than ten years later, thanks to the complex and rapidly developing technological environment of the Cold War. Slated to be replaced by platforms like the AGM-86 cruise missile and the B-2 Spirit stealth bomber before it even entered service, the B-1B Lancer has defied the odds for over four decades.
The B-1B can fly like this with the equivalent of three school busses worth of bombs in its weapons bays. (USAF Photo)
Today, it’s once again expected to be sent out to pasture in favor of the next stealth bomber, the forthcoming B-21 Raider, but in 2018, Boeing began toying with the idea of stretching out the Lancer’s shelf life by adding close air support to its mission profile.
How do you take a supersonic bomber and turn it into a close air support titan? According to patents filed by Boeing, it’s as simple as adding some really big guns.
By making the weapon retractable, it minimizes aerodynamic drag when the weapon is not in use. (US Patent Office)
Based on the illustrations, it appears as though Boeing doesn’t have its heart set on a specific cannon, and even shows two different sizes of them mounted in the same apparatus. Visually, these cannons look very similar to M230 30mm cannons or the Bushmaster cannon, which can run from 25mms to 40mms in size, as The Warzone has pointed out.
There would, in fact, be some benefit to Boeing’s approach to mounting these weapons on the B-1B as compared to the new AC-130J Ghostrider gunship and its predecessor, the Spooky AC-130. In the C-130-based gunships, the massive 105mm cannons are longitudinally mounted in a fixed cowling on the left side of the aircraft. In order to engage targets, Ghostrider gunships have to bank and circle over the target area to point the large cannon in the right direction.
However, there are also some significant limitations that one can’t help but consider when pitching the idea of a B-1B Gunship. Because the B-1B is designed to serve as a high-speed bombing platform, it almost certainly can’t maintain the low speeds achievable in an AC-130, despite its swing-wing design. The B-1B is also far more expensive to operate per hour than the still-in-production AC-130.
On the other hand, a B-1B Gunship could reach trouble spots far faster than any AC-130. The B-1B tops out at a blistering Mach 1.2, as compared to the AC-130 Ghostrider, which can’t exceed 420 miles per hour.
“They’re tuned for down low and mid-level altitudes, so you pretty much get pushed back into your seat,” Major “Coyote” Laney, a B-1B pilot instructor from the 28th Bomb Squadron, told me in 2019 during an interview for Popular Mechanics.
“The acceleration just keeps on coming—you can go right through the sound barrier pretty quick,”
Not as crazy as it might seem?
Despite being designed to penetrate Soviet airspace by flying fast and low, the B-1B Lancer has nonetheless found itself serving in a close air support role at times throughout the past two decades of the Global War on Terror. Thanks to the addition of a Lockheed Martin-sourced Sniper Advanced Targeting Pod, the Lancer can now deliver ordinance more precisely than ever before. The bomber’s massive fuel stores and heavy payload capabilities allow the B-1B to loiter over a combat zone for hours, before using its onboard fire control system to manage targeting data relayed from ground troops or its sniper pod to deliver ordnance with pinpoint accuracy.
“I remember in Afghanistan where troops needed help across the entire country and I could go 1.2 Mach all the way there and still have enough gas to hang out when I got there,” Laney explained.
“So you can take a platform that’s on the East side of Afghanistan and 15 or 20 minutes later, I’m showing up when there’s no one else for several hundred miles that could help.”
However, it seems clear that American ground forces don’t like to rely on precision-munitions from high-flying or far-flung weapons systems when they’re engaging the enemy. The long-standing love affair between U.S. military grunts and the A-10 Thunderbolt II speaks to this preference. When it comes to engaging the bad guys, ground troops prefer aircraft that actually have their eyes on the target.
However, a B-1B gunship may be able to split this difference by utilizing a combination of precision-guided bombs and onboard cannons. As it stands, B-1B Lancers are already capable of putting on quite the spectacle when delivering air support to ground troops.
“If I’m talking to a guy on the ground and I have my sensor on him … we can drop weapons seven miles away, or we can drop lower, drop them closer,” said Lt. Col. Dominic “Beaver” Ross, director of operations for the 337th Test and Evaluations Squadron.
“We’re not going to drop them as low as an A-10, but we are going to do shows of force where we’re 500 feet overtop of their head.”
Will a B-1B Gunship ever actually happen?
That’s tough to say, but for now at least, it seems unlikely… but that doesn’t mean the end for this concept or these patents. The premise of installing modular close-air support cannons in an aircraft like the B-1B could easily be modified for use in other aircraft as well. In fact, the Air Force is already experimenting with the idea of using modular weapons systems in aircraft that were intended for cargo carrying purposes.
Currently, the B-1B is expected to slip into retirement in the later end of the 2020s, as more B-21 Raiders roll off the assembly line and into service. While the forthcoming stealth bomber promises to be the most advanced aircraft of its type ever to take to the skies, it doesn’t offer many of the same capabilities the B-1B does. Like the B-2 Spirit it will also replace, the B-21 is expected to be subsonic, leveraging its stealth more than its speed to accomplish its missions.
Geopolitically, the B-21 may also be more complicated to use than the B-1B. The Lancer was converted into a strictly non-nuclear bomber platform in 2011, in accordance with the START Treaty between the United States and Russia. Retiring the B-1B will mean using nuclear capable B-21s for conventional airstrikes, which, because of its use a nuclear-weapon delivery bomber, could exacerbate tensions with America’s diplomatic opponents. Headlines claiming America is sending “nuclear bombers” to any region B-21s are deployed to would technically be accurate, despite misrepresenting the role these bombers may play.
In that regard, the B-1B may see some lawmakers and defense officials championing its continued service as has happened in the past. When a new airframe is slated to replace an old one, but lacks the capabilities of its predecessor, there will always be some arguing in favor of old and reliable.
Alex Hollings
Now for the Don Quixote Part - A Rather Interesting Retrospective and Discovery
In 1993 this author was working on the McDonnell Douglas C-17A Program in Long Beach, California, as a Manager for the Improvements & Derivatives Program. Several of my own concepts, as well as others from members of the group were compiled and published in a brochure (cover and pages shown below) One of my concepts was to modify the C-17A Globemaster II to an up-scaled Super Spectre version of the Lockheed AC-130 Spectre gunship series, already highly successful having been well proven in combat operations. That was 25 years before the Boeing Company filled for Patent No.: US 9,963,231 B2 dated May, 8, 2018. The principal argument advanced in opposition to the concept was that the C-17 was too expensive an asset for exposure at the projected operational altitudes for the threat environment. Apparently several ill-informed yet influential individuals thought it would be flying at the same altitudes as the AC-130 gunships. Any patent application never even entered the discussions. As those familiar with the aerospace industry McDonnell-Douglas ceased to exist in 1997, having been acquired by Boeing. Having had the opportunity to work for Boeing early in my career as a young engineer, and passed it up at that time for very good reason (hire and lay-off with individual contracts) suffices to say I retired the next year.
However, I believe even the casual reader will notice the rather pronounced similarities in the projected Boeing modification of the Lockheed B-1B and the concept that was proposed in the McDonnell Douglas corporate brochure for the C-17A in 1993. I'm seriously interested as to who within Boeing might have found a copy of the brochure, or are we talking sheer coincidence. I'll probably never know.
As was the case in other previous episodes presented in this blog, Don Quixote was unseated from his mount by yet another windmill.
For those readers who may have a further interest the following video is provided.
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