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Basler BT-67
Basler BT-67
Basler BT-67
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The Basler BT-67 is a utility aircraft produced by Basler Turbo Conversions of Oshkosh, Wisconsin. It is a remanufactured and modified Douglas C-47 Skytrain / Douglas DC-3; the modifications are designed to significantly extend the DC-3's serviceable lifetime.

Key Information

Design and development

[edit]

Basler Turbo Conversions was founded in 1990 solely to convert existing C-47/DC-3 airframes into BT-67s.[2] Basler configures each new build to the client's specifications. Industries served include cargo, military, cloudseeding, and scientific research.[3][4] The conversion includes fitting the airframe with new Pratt & Whitney Canada PT6A-67R turboprop engines,[5] lengthening the fuselage, strengthening the airframe, upgrading the avionics, and making modifications to the wing leading edges and wingtips.

Due to the higher fuel consumption of the turbine engines of the BT-67, compared to the original piston designs fitted to the standard DC-3, range on the standard fuel tank, with 45 minute reserve, is reduced from 1,160 to 950 nautical miles (2,150 to 1,760 km). Basler provides a long-range fuel tank which increases the aircraft range to 2,140 nmi (3,960 km).[3]

Gunship version

[edit]

The Basler BT-67 has a gunship version used by the Colombian Aerospace Force as of 2017 for counterinsurgency operations.[6][7] The Colombian gunships are equipped with a forward-looking infrared (FLIR) ball, enabling the aircraft to conduct effective nighttime missions.[8][9]

Operators

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A BT-67 of the Royal Thai Air Force
Basler BT-67 conversion No. 1, N200AN of World Air Logistics, at Missoula, Montana in 2000

Military

[edit]
 Colombia
 El Salvador
 Guatemala
 Mali
 Mauritania
 Thailand

Civilian

[edit]
 Australia
 Canada
 China
 Germany
 United Kingdom
 United States

Accidents and incidents

[edit]
Further information: List of accidents and incidents involving the DC-3

As of 2019, a total of 15 BT-67 aircraft have been involved in crashes or other incidents since the 1990s.[citation needed]

Specifications (BT-67)

[edit]

Data from Born Again Basler[21] and Jane's Civil and Military Aircraft Upgrades 1994–95[22]

General characteristics

  • Crew: Two (pilot & co-pilot)
  • Capacity: 38 Passengers
  • Length: 67 ft 9 in (20.65 m)
  • Wingspan: 95 ft 0 in (28.95 m)
  • Height: 16 ft 11 in (5.15 m)
  • Empty weight: 15,700 lb (7,121 kg)
  • Max takeoff weight: 28,750 lb (13,041 kg)
  • Powerplant: 2 × Pratt & Whitney Canada PT6A-67R turboprop engines, 1,281 shp (955 kW) each
  • Propellers: 5-bladed Hartzell constant speed propellers, 9 ft 7 in (2.92 m) diameter

Performance

  • Maximum speed: 285 kn (328 mph, 528 km/h)
  • Cruise speed: 210 kn (240 mph, 390 km/h)
  • Range: 2,140 nmi (2,460 mi, 3,960 km) with 45 minute reserve and long-range fuel tank
  • Service ceiling: 25,000 ft (7,600 m)

See also

[edit]

Related development

Related lists

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Basler BT-67

View on Grokipedia
from Grokipedia
The Basler BT-67 is a twin-engine turboprop utility aircraft manufactured by Basler Turbo Conversions, LLC, of Oshkosh, Wisconsin, through the remanufacture and modernization of surplus Douglas DC-3/C-47 airframes fitted with two Pratt & Whitney Canada PT6A-67R engines. This conversion replaces the original radial engines with reliable turboprops, incorporates updated avionics, strengthened structures, and enhanced fuel systems, enabling short takeoff and landing (STOL) performance while maintaining the DC-3's proven durability. Certified under FAR Part 25, the BT-67 achieves a maximum takeoff weight of 13,500 pounds, a cruise speed of 180 knots, and a range exceeding 1,800 nautical miles with auxiliary tanks, making it adaptable for diverse roles including cargo hauling, passenger transport, aerial firefighting, and geophysical surveying. Development of the BT-67 began in the late , with the first conversion achieving flight in 1990, building on the DC-3's legacy as one of aviation's most reliable designs by addressing obsolescence issues through turbine power and modern systems without requiring a full redesign. Over 60 units have been produced, serving operators in civilian sectors for resource exploration and logistics, as well as military applications such as , , and (ISR) in variants like the AC-47T . Its cost-effectiveness stems from utilizing existing airframes, reducing acquisition costs compared to new-build equivalents while offering lower operating expenses and high dispatch reliability in austere environments. The BT-67's global deployment includes users in for and mining surveys, operations during the austral summer for scientific logistics, science support, and tourism, and defense forces in and for tactical support, underscoring its versatility across challenging terrains and climates. Basler continues production and support, emphasizing the aircraft's role in extending the operational life of DC-3 fuselages into the present era through rigorous upgrades.

Development

Origins and conversion concept

Basler Turbo Conversions was established in , in the late 1980s by aviation entrepreneur Warren Basler, building on his prior experience with Basler Aviation, which had specialized in DC-3 maintenance since 1957. The company's primary focus was remanufacturing legacy and C-47 airframes into a modernized variant known as the BT-67, addressing the growing obsolescence of the original piston-powered designs while capitalizing on the airframe's established reputation for ruggedness and versatility in demanding environments. The conversion concept originated from the recognition that the DC-3/C-47, with over 16,000 units produced during and after , offered a durable proven in and civilian transport roles, yet suffered from the maintenance challenges and performance limitations of its aging radial engines. Basler aimed to extend the airframe's by more than 70 years through comprehensive , effectively resetting fatigue to zero time by inspecting, repairing, and upgrading structural components to modern standards. This approach targeted markets requiring cost-effective, reliable aircraft for short-field operations in remote or underdeveloped regions, where new-build alternatives were prohibitively expensive or unavailable. Central to the concept was the replacement of the original R-1830 radial engines with two PT6A-67R engines, selected for their superior reliability, , and power output, which enable enhanced takeoff and reduced operating costs without necessitating a complete redesign. Production of the first BT-67 conversions began in January 1990 at a new 75,000-square-foot facility at , with the prototype achieving its later that year, validating the rationale of blending historical robustness with contemporary technology. This initiative reflected a pragmatic response to empirical demands for upgraded legacy aircraft, prioritizing proven durability over untested innovations in an industry wary of high-risk development costs.

Production history and commercial viability


Production of the Basler BT-67 commenced in January 1990 at Basler Turbo Conversions' facility in , with the first flight occurring that same year. The company focused on remanufacturing /C-47 airframes into turboprop-powered utility aircraft, completing approximately 70 conversions by April 2025. Initial output averaged 2-3 aircraft per year, driven by custom orders rather than broad commercial demand. Early market challenges arose from competition with modern jet transports offering superior speed and capacity for mainstream operations, limiting sales primarily to niche roles in remote and austere environments. Despite these hurdles, production persisted through targeted demand from and specialized civilian operators valuing the BT-67's rugged reliability over newer alternatives. Key milestones include the first deliveries in the early 1990s and continued activity into the 2020s, such as the 70th aircraft (N856RB) achieving its on May 23, 2024, after conversion work began in 2020. In 2025, deliveries accelerated with two undisclosed customers receiving aircraft in January, followed by a notable 11,000 km ferry flight in August for an Argentine operator, covering 33 hours from Oshkosh to . This sustained viability stems from the conversion's high initial costs—spanning 9-12 months per —being offset by extended service life and lower operating expenses in harsh conditions, such as and support, where the platform's proven endurance counters skepticism over reliance on aged airframes. Commercial success pivoted from initial misjudgments favoring general utility to excelling in applications, with ample donor airframes ensuring potential production for decades. Undisclosed 2025 deliveries, including possible special mission configurations, underscore ongoing appeal to operators prioritizing and short-field over cutting-edge . Empirical from deployments in extreme environments validates this model, demonstrating that while broader remains constrained by evolutionary aviation trends, the BT-67's causal advantages in reliability and adaptability sustain its niche economic rationale.

Design features

Airframe and structural upgrades

The Basler BT-67 conversion process begins with a comprehensive overhaul, stripping the original structure to its primary components for inspection, repair, and reinforcement, achieving a zero-time equivalent condition that extends beyond the original design limits. This includes meticulous corrosion-proofing through application of new interior protective coatings on all structural elements, addressing age-related degradation common in legacy exposed to diverse operational environments. Wing spars and attachments receive targeted reinforcements to handle increased loads from higher gross weights and turboprop torque, while maintaining the DC-3's inherent aerodynamic profile with minor span extensions for enhanced lift efficiency. A key structural modification is the extension by 40 inches forward of the , coupled with a 60-inch forward relocation of the bulkhead, which enlarges the cabin volume without compromising structural integrity. These alterations, part of a reinforced conversion package, enable greater accommodation—up to 10,000 pounds (approximately 5 tons) of or 38 passengers—while paradoxically reducing the empty weight by about 529 kg (1,166 lb) compared to a standard DC-3 through optimized material use and removal of obsolete components. To support short-field operations on unimproved airstrips, the undergoes complete overhaul or replacement with strengthened struts, larger tires, and improved shock absorption, validated through ground and flight trials demonstrating reliable performance at low speeds and high angles of attack. These upgrades prioritize causal factors like ground handling stresses and fatigue resistance, ensuring the airframe's robustness in austere conditions without reliance on beyond aluminum alloys.

Propulsion system and performance improvements

The Basler BT-67 employs two PT6A-67R engines, each delivering 1,200 shaft horsepower (shp), paired with five-bladed constant-speed Hartzell propellers operating at 1,700 rpm for takeoff and 1,200–1,700 rpm in cruise. This configuration supplants the original DC-3's radial piston engines, yielding higher power-to-weight ratios and inherent reliability from the PT6 series, which has accumulated over 31 million flight hours across variants. Performance enhancements include a maximum speed of 285 knots (kn), cruise speed of 210 kn, range of 2,140 nautical miles (nmi) with 45-minute reserves, and endurance up to 10 hours under standard loads. The service ceiling extends to 25,000 feet, enabling high-altitude flight without superchargers or turbo-normalizers needed for radial engines, thus improving climb rates and reducing vulnerability to icing or at intermediate levels. Turboprop integration achieves fuel burn rates comparable to the DC-3 at matched low speeds (approximately 145 gallons per hour in normal cruise) while leveraging Jet A availability over , which lowers logistical costs in austere environments. Overall operating expenses are reported at 50% of legacy DC-3 levels, driven by 6,000-hour engine overhaul intervals and simplified , as demonstrated in polar missions where reduced downtime supports sustained without extensive ground support.

Variants and configurations

Utility and cargo variants

The utility and variants of the Basler BT-67 prioritize transport flexibility for passengers and freight in remote or underdeveloped regions, featuring a strengthened and auxiliary without provisions for armaments. These configurations support general hauling, with a large side-loading measuring 78 by 92 inches and a maximum capacity of 10,000 pounds, enabling efficient handling of bulky items on unprepared airstrips. Interiors can be adapted for mixed passenger-cargo loads or dedicated freight, accommodating palletized goods or up to 18 passengers in standard setups, with options for higher-density seating in commuter roles. The design emphasizes endurance, with long-range fuel tanks and all-weather capabilities derived from PT6A engines, allowing operations in diverse environments like polar expeditions or island hopping. Specialized civilian adaptations include , where the U.S. Forest Service has utilized BT-67s for retardant drops, and missions equipped with flare dispensers for . These variants incorporate mission-specific modifications, such as underwing tanks or seeding racks, while retaining short takeoff and landing performance for access to rugged terrain, distinguishing them from combat-oriented setups by focusing on logistical support over firepower.

Armed gunship variant

The armed gunship variant of the Basler BT-67 adapts the platform for and missions, incorporating sensors and weaponry inspired by the gunship's proven concept of persistent, low-altitude . This configuration emphasizes extended loiter capability enabled by the PT6A-67R engines, allowing for area denial and in rugged terrain at reduced operational costs compared to turbine-powered attack helicopters or jets. Key modifications include a (FLIR) system for night and adverse-weather targeting, side-firing machine guns such as 7.62mm miniguns or .50-caliber Gatling guns like the GAU-19/A, and structural reinforcements for weapon mounts, cockpit armor, and countermeasures dispensers. The Colombian Air Force's AC-47T "Fantasma" exemplifies this variant, with five BT-67 conversions entering service on December 18, 2006, equipped for precise slaved to FLIR imagery. In Colombian operations, the Fantasmas provided critical against FARC guerrillas and drug cartels, conducting thousands of sorties in environments where their slow speed and high endurance offered advantages over faster, higher-cost platforms ill-suited for prolonged visual and engagement. Their effectiveness in resource-limited validated the approach, contributing to the degradation of insurgent capabilities through interdiction and until FARC's effective demobilization around 2012.

Operational use

Military applications and combat effectiveness

The Basler BT-67 serves primarily in and light attack roles, leveraging its long endurance for intelligence, surveillance, and reconnaissance (ISR) alongside precision strikes in rugged terrains. The introduced five BT-67 gunships, locally designated AC-47T Fantasma, in 2006 for operations against guerrilla forces, enabling extended loiter times of up to 10 hours over jungle areas to support ground troops with targeting and armament delivery. These missions have demonstrated reliability in persistent aerial , contributing to operational successes in asymmetric conflicts where rapid response and low operating costs—estimated at under $1,000 per flight hour—outweigh vulnerabilities inherent to slower airframes. Combat effectiveness stems from the platform's adaptability to , including standoff weapons integration and ISR packages that facilitate real-time threat identification in low-intensity environments like those in Colombia's interior. While exposed to man-portable air-defense systems (MANPADS) due to its propeller-driven profile, the BT-67 employs low-altitude tactics and engine exhaust designs that reduce signatures, minimizing detection risks in environments lacking advanced air defenses; this approach has sustained its viability without reported losses to such threats in Colombian service. Comparative analyses highlight its superiority over costlier alternatives like dedicated drones or jets in budget-constrained scenarios, with lifecycle savings exceeding 50% while maintaining mission productivity gains of up to 76% in utility roles. Other military users, including the air forces of , , , , and , deploy BT-67 variants for similar patrols and cargo support in conflict zones, underscoring its role in extending legacy airframes for 21st-century needs. In early 2025, two unmarked, gray-liveried BT-67s were delivered to an undisclosed U.S. entity in , prompting speculation of adoption by special operations forces for covert ISR in denied areas, though official confirmation remains pending. This deployment pattern refutes assumptions favoring high-end platforms for all contingencies, emphasizing empirical advantages in endurance and affordability for protracted, low-threat engagements.

Civilian operations and specialized missions

The Basler BT-67 has found extensive civilian application in remote and extreme-environment logistics, particularly through operators such as , which has utilized the type for support missions since the early 2000s, including cargo transport and personnel shuttles to research stations under contracts with programs like the Australian Antarctic Division during the austral summer (November to January, including December). These missions support logistics and scientific research by transporting goods, personnel, and up to 18 expeditioners over long distances between Antarctic stations. Additionally, the aircraft is employed for tourism, such as luxury excursions operated by White Desert in collaboration with Enterprise Aviation Group, flying tourists to sites like the South Pole and Atka Bay for emperor penguin viewing. These operations demonstrate the aircraft's capability to function reliably in temperatures as low as -50°C, with ski-equipped enabling short takeoffs and landings on unprepared ice and snow surfaces, thereby supporting scientific outposts where modern jet alternatives prove impractical due to limitations. In scientific research, the BT-67 serves platforms like the Institute's Polar 5, a modified variant employed for polar marine and atmospheric studies, accumulating over 1.3 million kilometers in and flights by 2017 for data collection on ice dynamics, , and climate parameters. Similarly, the University of Texas Institute of Geophysics operates a BT-67 for geophysical and atmospheric research missions, leveraging its endurance—up to 10 hours and 2,000 nautical miles range—to conduct surveys in harsh, all-weather conditions across polar regions. Other civilian entities, including Bell Geospace, deploy the type for airborne geophysical surveys, such as mineral exploration and mapping, benefiting from its heavy capacity and low-altitude loiter . Specialized missions encompass for , where the BT-67's robust and provisions allow dispersion of agents over rugged terrain, as configured by Basler for such utility roles. Long-range ferry capabilities further highlight its versatility; for instance, a delivery flight in August 2025 covered 11,000 kilometers nonstop over 33 hours from , to , Argentina, underscoring enhanced from engines. Economically, the BT-67 offers lower acquisition and operating costs relative to comparable turbine aircraft, with its comprehensive overhaul process resetting the to effectively zero-time status, yielding dispatch reliability rates that exceed initial industry skepticism regarding DC-3 derivatives.

Safety record and incidents

Notable accidents

On 18 October 2023, Colombian Air Force Basler BT-67 registration FAC-1670 crashed approximately 8 km from Palanquero-German Olano Air Base during an unknown phase of flight, resulting in the deaths of all five occupants and destruction of the aircraft; the cause was not publicly determined. On 13 April 2022, Colombian National Police Basler BT-67 PNC-0257 veered off the runway and crashed during a landing attempt at Villavicencio-La Vanguardia Airport (VVC) while en route to Mitú for refueling; the aircraft sustained substantial damage but all occupants survived. Video evidence indicated a loss of directional control on the runway, potentially exacerbated by the short, high-elevation airstrip. On 3 December 2019, North Star Air Basler BT-67 C-GKGL crashed short of the runway during an instrument approach to La Ronge Airport (YVC) in Saskatchewan, Canada, while on a cargo flight from Yellowknife; the aircraft was destroyed by impact and post-crash fire, but the two crew members survived with injuries. The Transportation Safety Board of Canada attributed the accident to the crew's failure to maintain proper descent profile amid icing conditions and spatial disorientation, despite the aircraft's anti-icing systems. Other incidents include runway overruns at remote or hilltop airstrips, such as an undated Colombian operation involving PNC-0212, where the overran the , fell down a , and sustained substantial damage without reported fatalities, highlighting operational challenges in rugged rather than systemic deficiencies. Across databases, BT-67 hull-losses total nine as of late 2024, with fatalities rare and often tied to environmental factors or in high-risk missions, underscoring the type's resilience in roles compared to legacy DC-3 variants.

Reliability assessments and mitigations

The Basler BT-67 conversion process yields a zero-time airframe, as recognized by the (FAA), following extensive structural replacements and modifications that exceed 90% of the original components. This certification under FAR Part 25 standards resets inspection cycles, enabling extended service life backed by rigorous fatigue testing and aerodynamic enhancements designed for repeated operations on rough, unprepared fields. Empirical data from more than 30 years of global deployments highlight the aircraft's durability, particularly in extreme conditions like polar and remote cargo hauls, where it outperforms legacy radial-engine peers in dispatch reliability and resistance to environmental stressors. The PT6A-67R engines contribute significantly, offering proven mean of 6,000 hours initially, with the platform's overall design prioritizing fault-tolerant systems over theoretical vulnerabilities. Mitigations include reinforced wing spars, extended fuselage sections for balanced load distribution, and integration of glass cockpit avionics for enhanced redundancy in navigation and engine monitoring, reducing pilot workload in low-visibility or contested operations. These upgrades address potential fatigue from high-cycle utility roles, with ongoing non-destructive testing protocols ensuring structural integrity beyond original DC-3 limits. In response to procurement critiques, such as payload handling doubts in evaluations by the Pakistan Air Force, field performance in Colombian and Antarctic missions validates capacities up to 7,500 pounds of cargo or equivalent armaments under real-world stresses.

Technical specifications

The Basler BT-67 is equipped with two PT6A-67R engines, each rated at 1,281 shaft horsepower (955 kW) for takeoff up to 91°F altitude or 1,424 shaft horsepower up to 99°F, with a maximum continuous power of 1,220 shaft horsepower up to 119°F. These engines drive Hartzell five-bladed, 115-inch metal propellers, with the powerplants featuring a dry weight of 515 pounds and an initial of 6,000 hours. Key weights include a gross takeoff weight of 28,750 pounds, basic operating weight of 15,750 pounds, and maximum useful load of 13,000 pounds. capacity is 772 U.S. gallons (5,172 pounds) standard or 1,542 U.S. gallons (10,332 pounds) with long-range tanks. Performance metrics encompass a maximum cruise speed of 215 knots at 12,500 feet (95% ) or standard cruise of 205 knots (90% ), with flow at standard cruise averaging 145 gallons per hour. Range reaches 950 nautical miles with standard or 2,140 nautical miles with long-range , both at 80% including 45-minute reserves; single-engine service ceiling is 14,000 feet at 27,000 pounds gross weight. The airframe incorporates a 40-inch fuselage extension forward of the and a 60-inch forward shift of the cockpit bulkhead, yielding 35% greater interior volume than the baseline DC-3.
ParameterValue
Gross takeoff weight28,750 lb (13,045 kg)
Basic operating weight15,750 lb (7,145 kg)
Maximum useful load13,000 lb (5,897 kg)
Engines2 × PT6A-67R, 1,281 shp each
PropellersHartzell 5-blade, 115 in diameter
Max cruise speed215 kt (398 km/h)
Range (long-range fuel)2,140 nmi (3,963 km)

References

  1. https://www.baslerturbo.com/
  2. https://www.baslerturbo.com/specifications.html
  3. https://www.airforce-technology.com/projects/basler-bt-67-utility-aircraft-usa/
  4. https://www.baslerturbo.com/history.html
  5. https://simpleflying.com/basler-bt-67-converted-utility-aircraft-guide/
  6. https://simpleflying.com/basler-turbo-conversions-douglas-dc-3/
  7. https://www.antarctica.gov.au/antarctic-operations/travel-and-logistics/aviation/intracontinental-operations/basler-bt-67-aircraft/
  8. https://skiesmag.com/features/flying-the-last-frontier/
  9. https://www.baslerturbo.com/bt-67-worldwide.html
  10. https://www.insightonbusiness.com/industries/smallbusiness/aviation-upgrade/article_e2b61c8e-5e18-11ee-b8cb-67aaa3647020.html
  11. http://www.proplinerinfoexchange.com/baslerturboconversions.htm
  12. https://www.aviationpros.com/aircraft-maintenance-technology/aircraft-technology/maintenance-providers/mro/article/21267235/basler-turbo-conversions-and-creating-the-bt-67
  13. https://inspire.eaa.org/2023/08/30/resurrection/
  14. https://theaviationgeekclub.com/basler-delivers-two-bt-67-conversions-of-wwii-c-47-planes-to-undisclosed-customer/
  15. https://www.key.aero/article/basler-completes-70th-dc-3-conversion
  16. http://www.proplinerinfoexchange.com/1-dc-3_news.htm
  17. https://aerospaceglobalnews.com/news/basler-delivers-two-new-bt-67s-but-to-whom/
  18. https://www.flightradar24.com/blog/aviation-news/airline-news/33-hours-and-11000-km-delivering-your-new-dc-3/
  19. https://www.globalsecurity.org/military/systems/aircraft/bt-67.htm
  20. http://ekladata.com/hmYYr4dFcjPzMHvRLnbbGPjmlIA/Basler_BT-67_brochure.pdf
  21. https://mentourpilot.com/basler-bt-67-an-unlikely-21st-century-workhorse/
  22. https://www.scribd.com/document/119049749/Basler-BT-67-Systems-Training-Manual
  23. https://borekair.com/fleet/dc3t/
  24. https://www.baslerturbo.com/manufacturing.html
  25. https://www.baslerturbo.com/power-and-performance.html
  26. https://airbornesupport.com/basler.html
  27. https://www.baslerturbo.com/cargo.html
  28. https://www.fs.usda.gov/sites/default/files/fs_media/fs_document/aviation-history.pdf
  29. https://www.baslerturbo.com/mission-versatility.html
  30. https://www.twz.com/39236/theres-one-place-in-the-world-where-ac-47-spooky-gunships-still-fly
  31. http://deftechph.blogspot.com/2016/10/basler-turbo-usa-is-offering-bt-67.html
  32. https://www.key.aero/article/formidable-fantasmas
  33. https://medium.com/war-is-boring/colombias-ac-47t-fantasmas-are-still-going-strong-8884528d6e2a
  34. https://sofrep.com/news/ghost-planes-basler-turbo-bt-67s/
  35. https://www.dc3dakotahunter.com/blog/80-years-dc-3s-maiden-flight-colombian-c-47-combat-role-2/
  36. https://apps.dtic.mil/sti/tr/pdf/ADA533561.pdf
  37. https://apps.dtic.mil/sti/tr/pdf/ADA275382.pdf
  38. https://www.white-desert.com/
  39. https://www.awi.de/en/fleet-stations/aircraft/polar-5-6.html
  40. https://www.hydro-international.com/content/news/ten-years-of-exploration-with-awi-s-research-aircraft-polar-5
  41. https://impact.earthdata.nasa.gov/casei/platform/BT-67/
  42. https://www.baslerturbo.com/overview.html
  43. https://asn.flightsafety.org/wikibase/321552
  44. https://www.baaa-acro.com/crash/crash-basler-bt-67-palanquero-5-killed
  45. https://asn.flightsafety.org/wikibase/318825
  46. https://mentourpilot.com/accident-north-star-basler-crash-on-approach/
  47. https://asn.flightsafety.org/wikibase/322828
  48. https://asn.flightsafety.org/database/types/Basler-Turbo-67-BT-67/index
  49. https://www.smithsonianmag.com/air-space-magazine/turbine-charged-1066824/
  50. https://aeroreport.de/en/aviation/making-old-new-again-reinventing-the-legendary-douglas-dc-3
  51. https://www.flyairtec.com/news/airtec-s-basler-bt-67-an-all-weather-douglas-dc-3/
  52. https://www.pitzdefanalysis.net/2016/11/reasons-why-bt-67-basler-is-not.html
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