DHC-6 Twin Otter

Guardian

Dependable solution for 21st century special missions

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For over 60 years, the DHC-6 Twin Otter has stood alone as the most reliable and versatile aircraft in its class. Building on the exceptional reliability of the legendary Twin Otter, the Guardian aircraft features multiple interior configurations and a flexible mission system architecture, allowing the aircraft to move quickly between surveillance, search and rescue, medevac, parajumping, personnel transportation, and more.

Landing Gear Configurations

To operate from almost any surface

STANDARD WHEEL CONFIGURATION

INTERMEDIATE FLOATATION GEAR

FLOATS

AMPHIBIOUS FLOATS

WHEEL SKIS

Mission Capabilities

High arctic and remote transport
Amphibious and ski operations
Police transport, air support, and surveillance
Maritime patrol and border protection
Medevac and ERT deployment
Drug Interception
Short take-off and landing performance (STOL)
Mission-Ready configuration

Garmin G1000® NXi Flight Deck

Fully integrated avionics suite with functionality and capability to meet current and future ATC requirements

Autopilot, FMS, Weather Radar, Satellite Communications, Ground Proximity Warning, Traffic Advisory, Flight Tracking System, Synthetic Vision, Video Display, and more

Two Engine Options — Economy Meets Performance

Standard PT6A-27 engine is the economical choice, providing efficient performance and fuel consumption

Optional PT6A-34 engine is designed for extreme operations, ideal for challenging environments and demanding missions

New starter generators with cross generator start paired with a lithium chemistry battery offer powerful and reliable starting capabilities

More Payload, More Range

400–500 lb basic weight reduction

Weight reduction gives more payload and/or longer range capability

Overall, 8% increase in revenue

LOPA Options

For a variety of applications

PASSENGER TRANSPORT

(19 PAX)

AIR AMBULANCE / MEDEVAC

(UP TO 2 BEDS AND 8 PAX)

PARATROOP

(15 PAX)

MIXED PASSENGER / CARGO

1 WORKSTATION WITH AFT LAV

(12 PAX)

2 WORKSTATIONS

(9 PAX)

Exterior

Specifications and Performance

Aircraft Dimensions

Wingspan	19.81 m	65 ft
Horizontal Tail Span	6.29 m	20 ft 8 in
Aircraft Length	15.77 m	51 ft 9 in
Aircraft Height	5.94 m	19 ft 6 in

Cabin Dimensions

Cabin Length	5.61	18 ft 5 in
Cabin Height	1.50 m	4 ft 11 in
Cabin Width	1.75 m	5ft 9 in
Left Side Cabin Door	1.27 x 1.42 m	50 x 56 in
Right Side Cabin Door	0.76 x 1.16 m	30 x 45.5 in
Maximum Pax Seating	19
Minimum Flight Crew	1

Powerplant

Engines	Pratt & Whitney PT6A-34
Flat-rated to (ISA + 27°C, Sea Level)	620 shp
Propellers, Hartzel - Three Bladed Reversible Pitch	HC-B3TN-3D

Design Weights & Capacities

Maximum Takeoff Weight	6,350 kg	14,000 lb
Maximum Landing Weight	6,123 kg	13,500 lb
Typical Operational Weight Empty	3,621 kg	7,985 lb
Useful Load	2,728 kg	6,015 lb
Fuel Capacity	1,440 kg	3,176 lb
Optional Fuel Capacity	1,618 kg	3,568 lb

Performance

STOL Takeoff*	366 m**	1,200 ft**
STOL Landing*	320 m**	1,050 ft**
SFAR 23 Takeoff Field Length to 50 ft at MTOW	579 m	1,900 ft
Landing Ground Roll - Wheels	563 m	1,846 ft
Maximum Cruise Speed - ISA, 5,000 ft	162 KTAS
Maximum Cruise Speed - ISA, 10,000 ft	174 KTAS
Maximum Endurance Speed	100 KIAS
Payload for 100 nm range at Maximum Cruise Speed	2,368 kg	5,220 lb
Payload for 250 nm range at Maximum Cruise Speed	2,194 kg	4,837 lb
Maximum Range (Zero Payload) Standard Tanks	1,926 km	1,040 nm
Maximum Range (Zero Payload) Long-Range Tanks	2,172 km	1,173 nm

NOTE: Payload and range data assumes fuel reserve for 45 minutes at cruise altitude and maximum endurance speed.

*Local regulatory approval required

**Based on MTOW of 12,500 lb. Contact DHC for detailed performance analysis.

External Dimensions

This website and/or the information contained herein may not be reproduced in whole or in part without DHC’s prior written consent. Website material is submitted for informational purposes only, is not part of any proposal and creates no contractual commitment. DHC provides the information contained on this website on an ‘as is, where is’ basis and makes no representation or warranty of any kind regarding the applicability or reliability of any of such information with respect to any use whatsoever to be made of it by the recipient. Any information of a technical nature on this website may contain inaccuracies and is subject to change and should never be relied upon for operational use.