Boeing just gave its Harpoon anti-ship missile a serious facelift. Its upgraded version, the Harpoon Block II Update (HIIU), has successfully completed its first flight test, launching from an F-15SA over California’s Point Mugu Sea Range. The missile aced tests for propulsion, guidance, navigation, and control, giving the green light for production to begin soon—and those first missiles are scheduled to arrive in 2026.
Why This Matters
The Harpoon isn’t just any missile—it’s a battle-tested staple of naval arsenals across the globe, capable of launching from jets, ships, submarines, and ground platforms. The HIIU takes that legacy and supercharges it with upgraded electronics drawn from JDAM and SLAM-ER systems, solving obsolescence problems and ramping up production capacity to meet rising global demand.
What’s Hot—And What’s Next
With the test mission cleared, Boeing is moving full-speed ahead with production. First deliveries are slated for 2026. This sets the stage for a major arms contract: in early April 2023, Boeing scored a $1.17 billion deal to deliver 400 RGM-84L-4 Harpoon Block II Update missiles, plus launchers, testing gear, logistics, and training. Final deliveries are expected by March 2029.
Taiwan’s Slice of the Pie
This isn’t just an American upgrade—it’s also a cornerstone of Taiwan’s beefed-up coastal defense. Taiwan is set to receive 400 land-based Harpoon Block II (U) missiles and 100 launcher transporter units in a broader package that stretches from 2021 to 2030, valued at around NT$86.6 billion (≈ USD 2.7 billion).
Progress is already underway:
- By mid-2025, Taiwan received its first launchers and a radar vehicle.
- First missile batch (128 units) expected by 2026, with full deployment by 2028.
- A Coastal Defense Command will be fully online by 2026 to oversee these systems.
- Details: Taiwan’s variant may have an extended range—up to 148+ km, surpassing the typical 124 km of the standard model.
Bonus Intel: Boeing’s Support Role
Beyond selling hardware, Boeing is deeply involved in engineering and integration. In mid-2024, it secured an $81 million contract to provide engineering support for Taiwan’s Harpoon Coastal Defense Systems—including launchers, test equipment, training platforms, and system configuration. Work is on track through August 2026.
TL;DR: What’s the Big Picture?
- Boeing’s Harpoon Block II Update passed its first flight test in mid-2025—production launches soon.
- A $1.17B US Navy contract will deliver 400 missiles plus gear through 2029.
- Taiwan is a key buyer in this rollout—getting missiles, launchers, and support to boost coastal defense against growing threats.
- A new Coastal Defense Command and missile bases will be ready by 2026–2028.
- Boeing also plays a tech-support role, reinforcing commitment well beyond the sales pitch.
