Absalon vs Iver Huitfeldt
Absalon vs Iver Huitfeldt at a glance — displacement 6,600 vs 6,645 tons, length 137 vs 138 m, speed 24 vs 30 knots, crew 100 vs 165.
| Absalon | Iver Huitfeldt | |
|---|---|---|
| Origin | 🇩🇰 Denmark | 🇩🇰 Denmark |
| Category | Frigate | Frigate |
| Type | Multi-role frigate | Air-defense frigate |
| Manufacturer | Odense Staalskibsværft | Odense Staalskibsværft |
| Year introduced | 2005 | 2012 |
| Number built | 2 units | 3 units |
| Estimated unit price | $189 million | $325 million |
| Displacement | 6,600 tons | 6,645 tons |
| Maximum speed | 24.0 knots | 30.0 knots |
| Range | 9,000 nm | 9,000 nm at 18 knots |
| Length | 137.0 m | 138.7 m |
| Beam | 19.5 m | 19.8 m |
| Crew | 100 | 165 |
| Absalon | Iver Huitfeldt | |
|---|---|---|
| Armament |
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| Propulsion | 2 × MTU 8000 M70 diesel engines, two shafts, 22,300 bhp (16.6 MW) | Four MTU 8000 20V M70 diesel engines, 8.2 MW each, Two shafts, CODAD |
Detailed Comparison
The Royal Danish Navy operates the Absalon class and the Iver Huitfeldt class as its primary surface combatants. While both classes share a common hull design and originate from the Odense Steel Shipyard, they fulfill distinct tactical roles within the fleet structure. The Absalon class, commissioned in 2005, functions as a flexible support and anti-submarine platform, whereas the Iver Huitfeldt class, commissioned in 2011, serves as a dedicated area air defense frigate.
Development and Design
The Absalon class utilizes a hybrid design integrating a 900-square-meter internal multipurpose "flex deck" and stern vehicle ramp, enabling transport, hospital, or mine warfare configurations. It accommodates two helicopters. In contrast, the Iver Huitfeldt class utilizes a modified version of the Absalon hull form to reduce acquisition costs but lacks the internal flex deck, prioritizing structural arrangements for vertical launch systems and radar arrays. It supports a single helicopter. The Absalon has a displacement of 6,600 tons, nearly identical to the Iver Huitfeldt at 6,645 tons. The Iver Huitfeldt unit cost was $325 million, compared to $189 million for the Absalon.
Weapons and Sensors
The Iver Huitfeldt specializes in anti-air warfare (AAW), equipped with the Thales SMART-L long-range surveillance radar and APAR multi-function radar using Interrupted Continuous Wave Illumination (ICWI). Its armament includes a 32-cell Mk 41 VLS for SM-2 IIIA missiles and 24 ESSM cells. The Absalon carries a lighter AAW loadout of 36 ESSM missiles and utilizes a 5-inch Mk 45 Mod 4 main gun, distinct from the two OTO Melara 76 mm guns on the Iver Huitfeldt. Both classes operate 16 Harpoon Block II anti-ship missiles, though the Iver Huitfeldt is transitioning to the Naval Strike Missile (NSM). The Absalon is currently undergoing upgrades to install towed array sonars to support its reclassification as an anti-submarine warfare frigate.
Propulsion and Performance
Propulsion configurations differ to match operational requirements. The Iver Huitfeldt employs a Combined Diesel and Diesel (CODAD) arrangement with four MTU 8000 20V M70 engines generating 32.8 MW, achieving a top speed of 30 knots. The Absalon utilizes two of the same MTU engines for a total output of 16.6 MW, resulting in a lower maximum speed of 24 knots. Both classes report a range of 9,000 nautical miles.
Deployment and Combat Record
The Iver Huitfeldt deployed to the Red Sea in March 2024, engaging drone targets; the operation identified technical faults with the APAR radar and ammunition integration. Following this, Danish authorities considered reassigning the class to Baltic Sea patrol duties. The Absalon class has transitioned from a flexible support role to a dedicated anti-submarine platform, with modernization programs scheduled through 2026. The Iver Huitfeldt design served as the basis for the British Type 31 frigate.
Conclusion
While sharing a hull platform to optimize logistics and construction costs, these vessels occupy different tactical niches. The Absalon provides multi-mission volume and anti-submarine capability at a lower unit cost, while the Iver Huitfeldt delivers area air defense capabilities with a higher speed and advanced sensor suite.