Viking Twin Otter Series 400

In production

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High wing single turboprop utility aircraft. Based on DHC Twin Otter series. Includes 400S Seaplane variant and special missions variant, the Guardian 400.

Photo: De Havilland Aircraft of Canada

Lift type

Fixed wing

Construction

Factory-built

Control

Piloted

Engine type

Turboprop

Application

Amphibious, Cargo, Passenger small, Surveillance, Utility

Final assembly

Victoria International · Calgary International ·

Fleet facts business use worldwide · as at August 2026

In business use

308 aircraft

Production years

1966-2025

Average age

43.5 years

Main base countries

Maldives (64), Canada (48), U.S.A. (20), Indonesia (17), Papua New Guinea (10)

Figures cover the worldwide fleet in business use — airline and military examples are not included. Fleet data: Business Air News research.

Design & construction

Primary structure

Aluminium

Wing

Aluminium

Landing gear

Fixed tricycle

Pressurisation

Unpressurised

Flight controls

Mechanical

Autopilot

3-axis

Avionics architecture

Integrated glass suite

Wing position

High

Planform

Straight

Tail

Conventional

Certification

Part 23

+ 1 technology researched and confirmed absent from this program.

Technical reference compiled with AI research; a value appears only where two independent research passes and a web fact-check agree. Gaps are deliberate.

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Type variants

Variant	Launch / first flight	Production end	Notes
De Havilland Canada DHC-6 Twin Otter	1964 / 1965	2006	STOL utility aircraft.
Viking Twin Otter Series 400	2006 / 2006	2020	Production: 1 (2010) First two Series 400 deliveries occurred in 2010: MSN 846 to Air Seychelles on 24 December 2010 (the first customer delivery per ACE Technical), and MSN 845 to Zimex Aviation of Switzerland at the Farnborough Airshow in July 2010 per multiple sources [medium]. Baseline variant, derived from DHC-6 Twin Otter. Temporarily suspended.
Viking Guardian 400	2009 / 2009		Special mission variant.
Viking Twin Otter 400S Seaplane	2016 / 2016		Amphibious variant.
De Havilland Canada DHC-6 Twin Otter Classic 300-G	2023 / 2025		Production: 9 (2018) GAMA: Viking Air Ltd. DHC-6 Series 400 Twin Otter. Lighter weight variant, with STOL capability and a variety of different landing gear options.

Airframer

De Havilland Aircraft of Canada Limited

News

Other aircraft programs: De Havilland Canadair 515 · De Havilland Dash 8 Series ·

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Program milestones 30 dated events

The program’s dated history — milestones, contracts, supplier selections and facilities, each linked to its source. Log in to view.

Information on this page is compiled from a variety of published sources; links do not necessarily imply recommendation or confirmation by the airframe manufacturer.