Platform Variants
¶ 1. Platform Variants
The F-35 is produced in three variants based on a common basic design, yet differing considerably in their construction. Contrary to frequent claims, the actual commonality between the variants amounts to only around 20% shared structural components [2].
¶ F-35A (CTOL – Conventional Takeoff and Landing)
The F-35A is the primary variant of the US Air Force and the export model for international partners, including Switzerland. It is designed for conventional takeoff and landing on paved runways.
| Parameter | Value |
|---|---|
| Top speed | Mach 1.6 |
| Combat radius | >1,093 km (590 nm) |
| Service ceiling | >15,240 m (50,000 ft) |
| G-limit | +9.0/-3.0 g |
| Internal fuel capacity | 8,278 kg (18,250 lbs) |
| Empty weight | approx. 13,290 kg |
Source: USAF Fact Sheet F-35A [3], Lockheed Martin F-35 Brochure [4]
¶ F-35B (STOVL – Short Takeoff and Vertical Landing)
The F-35B is the variant used by the US Marine Corps and the Royal Air Force. It features the Rolls-Royce LiftFan system and a swiveling nozzle that enable short takeoff and vertical landing.
| Parameter | Value |
|---|---|
| Combat radius | >833 km (450 nm) |
| Vertical thrust | >18,000 kg (combined) |
| G-limit | +7.0 g |
| Distinguishing feature | Smaller weapon bays than F-35A/C |
¶ F-35C (CV – Carrier Variant)
The F-35C is the US Navy's carrier variant with a reinforced airframe, tailhook, and folding wings for aircraft carrier operations.
| Parameter | Value |
|---|---|
| Combat radius | >1,111 km (600 nm) |
| Wingspan | 13.1 m (43 ft) – larger than A/B |
| G-limit | +7.5 g |
| Distinguishing feature | Reinforced landing gear structure, larger wing area |
¶ Production Numbers
As of late 2024, over 1,000 F-35s have been delivered to international operators. The annual production rate is approximately 150 aircraft, with a target of 156 per year [5].
¶ References
[2] F35.com: The ABCs of F-35
[3] United States Air Force: F-35A Lightning II Fact Sheet
[4] Lockheed Martin: F-35 Lightning II Brochure (PDF)
[5] GAO-25-107632: F-35 JSF: Actions Needed to Address Late Deliveries. 2025