Until a photo with an interesting caption appeared on the November 2012 issue of Air Force Magazine, few people had noticed that an F-35 display model at the Air Force Association Technology Expo 2012, had its weapon bays loaded with a brand new type of air-to-air missile: the Lockheed Martin “Cuda”.
Image credit: Air Force Magazine
“A Lockheed Martin model shows how its “’Cuda” concept for a small AMRAAM-class radar guided dogfight missile could triple the air-to-air internal loadout on an F-35. The missile is about the size of a Small Diameter Bomb and fits on an SDB-style rack.”
Photo caption aside, almost nothing is known about the “Cuda” missile.
“We are having some challenges getting information on Cuda cleared for public release,” Cheryl Amerine, Cuda POC at the Lockheed Martin Missiles and Fire Control, told The Aviationist.
“Cuda is a Lockheed Martin multi-role Hit-to-Kill (HTK) missile concept. Lockheed Martin has discussed the missile concept with the United States Air Force. The Cuda concept significantly increases the internal carriage capacity for 5th generation fighters (provides 2X to 3X capacity). Combat proven HTK technology has been in the US Army for over a decade. Bringing this proven HTK technology to the USAF will provide potentially transformational new capabilities and options for new CONOPS.”
The Hit-to-Kill missile technology Lockheed is designing for the USAF is still classified and some of the capabilities of the Cuda missile are being reviewed for public release. Still, something can be said based on the few details available.
First of all, the F-35 will carry kinetic energy interceptors: “hit-to-kill” weapons rely on the kinetic energy of the impact to destroy their target. That’s why some HTK missiles don’t carry any warhead (others use a lethality enhancer warhead).
Image courtesy of Lockheed Martin
HTK technologies can be used for missile defense (Scuds, rockets or even ballistic missiles). Is someone at the Pentagon studying the possibilty to use F-35s carrying clusters of Cudas as aerial anti-missile systems to intercept small rockets, SAMs (surface-to-air missiles)?
Second, that unlike Sidewinders, Cuda missiles, rather than being equipped with an IIR (Imaging Infra Red) seeker, will be radar-guided. This means they will be ejected from the internal bays in such a way the exposure of the stealth plane is reduced.
Third, the possible integration of the Cuda with the F-22: since a Raptor can carry eight SDB, it can theoretically carry up to eight Cuda, even if the perfect air-to-air loadout could be mix of AIM-120 AMRAAM, AIM-9X and Cuda missiles.
This makes no sense:
“Second, that unlike Sidewinders, Cuda missiles, rather than being equipped with an IIR (Imaging Infra Red) seeker, will be radar-guided. This means they will be ejected from the internal bays in such a way the exposure of the stealth plane is reduced”
What does the missile guidance have to do with how it would be ejected from the weapons bay?
IIR missiles (most, not sure if all) have to acquire the target with their seeker before being launched. Since the F-35 carries air-to-air missiles inside the weapons bay, the pre-launch lock on can only be achieved with special mounting systems attached to the bay doors.
There are some missiles, and Aim-9X is among them, that have LOAL(Lock-On After Launch) capacity.
I count six Cuda missiles in each weapons bay so twelve (or more with sidebays) missiles per aircraft!
I doubt the range would be that much. From looking at the pictures, the diameter seems to be about 6”, with a short length. Drag would be significant. I’d say no more than 30km range.
This missile could fill an anti-missile role for point defense, but for air-to-air, more range and warhead are needed.
Remember the missile doesn’t have a warhead, this means more fuel for the rocket and consequently more range.