de Havilland Canada DHC-2 Beaver

The DHC-2 Beaver is arguably the most revered bush plane ever built — a purpose-designed Canadian STOL workhorse powered by the 450 hp Pratt & Whitney R-985 Wasp Jr. radial. First flown 16 August 1947, it was designed from consultations with actual bush pilots, who asked for brute lift, short-field performance, huge cargo doors, and the ability to operate on wheels, floats, or skis with equal willingness. De Havilland Canada built 1,657 Beavers between 1947 and 1967, and a remarkable percentage of them are still flying — floatplane operators in Alaska, British Columbia, Ontario, and the Maldives continue to fly them commercially nearly eight decades after production began. The Canadian Engineering Centennial Board named the Beaver one of the top ten Canadian engineering achievements of the 20th century.

The Beaver's reputation rests on its ability to haul enormous loads out of short, rough strips and glassy lakes. With a 2,100 lb useful load, seating for a pilot plus six passengers (or freight), 58-degree flaps, drooping ailerons that function as additional flaps, and the unmistakable bark of a Wasp Jr. radial, it remains the yardstick against which every other bush plane is measured. Today's buyers are bush operators, lodge owners, high-net-worth recreational pilots, and air taxi outfits — not casual weekend flyers. Viking Air of Victoria, BC holds the type certificate (acquired from Bombardier on 24 February 2006) and manufactures new and remanufactured parts, as well as the DHC-2T Turbo Beaver conversion. See maintenance-ecosystem for Viking's role in keeping legacy de Havilland Canada types supported.

Several hundred surplus L-20/U-6A airframes entered the civilian market in the 1970s–80s and form the bulk of today's fleet. Restoration shops (Kenmore Air, Viking, Airtech Canada, Wipaire, Recon Air) routinely "zero-time" Beaver airframes with new firewalls, new skins, new spars, fresh paint, and new glass — a process that typically returns the airframe to better-than-new condition and supports six- and seven-figure asking prices. See dehavilland-dhc3-otter for the Beaver's larger sibling.

The Beaver's book numbers understate its real-world utility because the airplane is built around low-speed operation, not cruise. Cruise at 65% power is roughly 110 KTAS on 24 gph — slow by any modern standard, but floatplane operators rarely care. What matters is the ability to lift two-thirds of a ton of useful load out of a short, glassy lake at density altitude. The full-span flap-aileron droop (flaps travel to 58 degrees and the ailerons droop 15 degrees with flap extension) gives an enormous low-speed lift coefficient, and the big Hamilton-Standard prop converts all 450 hp into usable thrust on takeoff.

Wheels versus floats matters hugely. On Edo 4930 or Wipline 6000 straight floats, cruise drops to ~100 KTAS, climb to ~850 fpm, and takeoff run grows significantly — but the Beaver was designed around float operation and remains the benchmark for glassy-water, confined-lake work. Amphibious Wipline 6100s add ~300 lbs of empty weight and cost useful load accordingly. Ski operation is common in the north; the airplane is equally at home on wheel skis.

Density altitude degrades the normally-aspirated R-985 the way it degrades any non-turbo radial — by 6,000 ft density altitude, expect 15–20% less thrust and noticeably longer ground roll. The Turbo Beaver conversions (Viking DHC-2T, Kenmore turbine) transform high/hot performance and are overwhelmingly favored by operators in Alaska, the Rockies, and mountain lodges. A PT6A-34-equipped DHC-2T will climb at 1,500+ fpm at max gross and cruise 135+ KTAS.

The Beaver is one of the rare GA airplanes where "full fuel + full seats" is often feasible. With a 2,100 lb useful load and 95 US gallons (570 lbs) of fuel, the airplane can launch with 1,530 lbs of cabin payload — enough for a pilot, five or six adults, and some gear — and still have 4 hours of endurance. Typical loading scenarios:

• Full fuel (95 gal / 570 lb), pilot + 5 passengers @ 200 lb = 1,200 lb pax, 330 lb cargo room. About 3.5 hours / 380 NM usable range with VFR reserves.
• Full seats (pilot + 6 @ 200 lb = 1,400 lb), 700 lb fuel remaining = 117 gal NOT available — limited to 95 gal. Really this becomes: full seats + 95 gal = too heavy unless on a light interior. In practice bush operators rarely fill all seven seats; the usual config is pilot + 3–4 pax + freight.
• Freight hauler: Pilot + copilot + 1,800 lb freight + 60 gal fuel. Hourly freight run, ~2 hours endurance, 210 NM range — the classic bush role.
• Floatplane penalty: Straight floats cost ~300 lbs of useful load (now 1,800 lb), amphibs cost ~450 lbs (now 1,650 lb). Many float Beavers with gross-weight STCs recover most or all of the penalty on paper.
• Turbo Beaver (Viking DHC-2T): Useful load climbs to 2,450+ lbs and the PT6A-34 flattens density altitude penalties entirely. At 6,000 lb MTOW on floats with a full cabin, you still have runway/lake to spare.

The Beaver is one of the only GA singles where the marketing phrase "built to do what the mission asks" is literally true — the engineering compromises all point at lifting real loads out of short fields, and 80 years of accumulated operator experience confirms the design brief was correct.

See also: dehavilland-dhc3-otter for the larger cabin-class sibling, mosaic for why the Beaver is not MOSAIC-eligible (far above LSA weight limits), backcountry-bush, cargo-hauling, cross-country, maintenance-ecosystem, insurance-underwriting, valuation-methodology.

• Backcountry/Bush (10/10): This is the airplane every other bush plane is benchmarked against. STOL performance, massive useful load, cargo doors on both sides, wheels/floats/skis interoperability, and 80 years of proven ruggedness. See backcountry-bush.
• Cargo Hauling (10/10): 2,100 lb useful load (2,450 lb on the Turbo), flat cabin floor, double cargo doors, pilots reporting routine loads that would embarrass a Caravan on a per-horsepower basis. See cargo-hauling.
• Surveying (8/10): Stable platform, large windows, low-and-slow capability, long time aloft. Slightly less suitable than modern turboprops due to R-985 fuel burn economics but widely used historically for aerial photography and pipeline/powerline patrol.
• Local Fun (6/10): Undeniably one of the most fun airplanes in general aviation to fly — the radial, the view, the low speeds, the STOL capability — but the acquisition and operating costs rule it out as a recreational-only aircraft for most pilots.
• Cross Country (5/10): 110 KTAS cruise and 395 NM range make it a slow tourer, but the comfort, stability, and sheer presence make float-equipped owners happy to take the long way. See cross-country.
• Business Travel (4/10): Only relevant for lodge/resort operators flying clients to remote destinations. Not a conventional business tool.
• Training (3/10): Cost and complexity (radial engine management, tailwheel, floats) make it unsuitable as a primary trainer, though it is sometimes used for floatplane and tailwheel endorsements.
• Aerobatics (1/10): Not certified or designed for aerobatics.

• Entry tier ($0–$15k retrofit): Legacy round-gauge panels with single nav/com, ADF, and minimal IFR capability. Many bush-operated Beavers still fly VFR-only with a handheld or a basic Garmin GNC-255.
• Mid tier ($25k–$60k retrofit): Dual Garmin GNC/GTR radios, GTN 650Xi navigator, GTX 345 transponder with ADS-B In/Out, GMA 345 audio panel. Paired with an analog six-pack for reliability in remote environments.
• Premium tier ($80k–$180k retrofit): Garmin G5 or GI 275 electronic backups, GTN 750Xi, engine monitor (Insight G4, JPI for radials is specialty), autopilot (S-TEC 3100 STC exists for DHC-2), weather radar, TKS or boots are not fitted but cargo pod and external tanks commonly are.

Floatplane operators typically prioritize reliability and water-capable radios over glass panels; many commercial Beavers retain steam gauges because they work and are trivially repaired in remote locations.

• Kenmore Gross Weight Increase STC: Raises MTOW to 5,370 lbs (piston) by adding strengthened gear/structure. Nearly universal on commercial Beavers. Install cost: ~$15k–$25k when done with other work.
• Kenmore Stall Fence / Droop Tip STC: Improves low-speed handling and stall margin; install ~$8k–$12k.
• Baron STOL Kit: Leading-edge cuff, stall fences; improves short-field and low-speed controllability.
• Airtech Canada fuel system mods: Auxiliary fuel tanks; extended range.
• Wipaire Wipline 6000/6100 floats: Standard wear item for float Beavers; 6000 straight floats ~$160k installed, 6100 amphibious ~$245k installed (2025 prices).
• Turbine conversions:
  • Viking DHC-2T (PT6A-34, 680 shp): Factory remanufactured; MTOW to 6,000 lbs, ~$2.5M–$3.5M turnkey for a complete remanufacture.
  • Kenmore Turbine Beaver (PT6A-20 or -27): ~$900k–$1.3M conversion cost over and above the airframe value, depending on existing condition. Complete packages routinely list for $1.4M–$1.8M.
  • Texas Turbines / Airtech Canada packages: Less common; similar cost structure.
• Wing spar reinforcement STCs (Viking SB, SA01324CH): Address life-limit and fatigue concerns on high-time airframes.

See valuation-methodology for how STCs and floats factor into Beaver pricing (spoiler: float and STC value frequently exceeds airframe value).

Despite its age, the Beaver has one of the best parts and support ecosystems of any out-of-production general aviation aircraft, thanks primarily to Viking Air holding the type certificate and to a half-dozen specialist shops that have built businesses around the airframe.

• Type certificate holder: Viking Air Ltd., Victoria, BC (since 2006). Manufactures new parts, spares, and the DHC-2T reman. Issues service bulletins and supports the fleet globally.
• Parts availability: Good. Viking manufactures new airframe parts, and salvage/PMA supply is excellent. R-985 parts are specialty but available from multiple sources.
• Mechanic familiarity: Specialist. An average A&P can do routine work, but anything involving the R-985, the high-lift flap system, wing spar inspections, or float work should go to a Beaver specialist.
• Key shops: Kenmore Air (Washington), Viking Air (BC), Recon Air (Ontario), Airtech Canada, Wipaire (Minnesota), Sealand Aviation (BC).
• R-985 overhaul: $65k–$85k typical, 12+ month backlog at Covington, Tulsa Aircraft Engines, Younkin Aviation, or Radial Engines Ltd. TBO 1,400 hours (calendar and hour-driven; many bush operators overhaul well before hour TBO).
• Annual inspection: $6k–$12k for a clean airframe; $15k–$30k+ if corrosion, spar work, or float repairs emerge.
• Typical annual operating budget: $45k–$75k for a private owner flying 100–150 hours/year on floats, including engine reserve, fuel, hangar/dock, insurance, and maintenance.
• Fuel burn: 24–26 gph on 100LL at cruise; 30+ gph in climb.
• Expensive items: R-985 overhaul, prop overhaul ($8k–$12k), float refurbishment ($30k–$80k per set), wing spar inspection/repair, corrosion remediation.

See maintenance-ecosystem for the broader maintenance context.

Beaver pricing is driven by condition, equipment package, and turbine status more than by year. A 1953 airframe that has been fully zero-timed with new spars, new R-985, new floats, and new avionics is worth dramatically more than a 1965 airframe that's 800 hours from TBO on tired floats. Typical piston Beaver pricing (2026):

• Project / tired airframe: $250k–$400k. Usually runs-out engine, old paint, no modern avionics, outdated or missing floats.
• Solid working Beaver, mid-time: $400k–$600k. Mid-life R-985, serviceable floats, basic avionics.
• Pristine / recently restored piston Beaver on amphibs: $650k–$950k. Fresh engine, fresh floats, refurbished interior, modern Garmin panel. Most quoted retail listings land in this band.
• Viking/Kenmore/Wipaire zero-time rebuild: $900k–$1.3M piston.
• Kenmore Turbine Beaver (PT6A-20/-27): $1.1M–$1.6M.
• Viking DHC-2T (PT6A-34 factory reman): $1.6M–$3.5M depending on specification.

Key valuation drivers:

• Engine time: An R-985 with 1,400+ hours SMOH is a depreciating liability — a fresh overhaul is $65k–$85k and the engine shop backlog can be 12+ months at specialist facilities.
• Float condition and type: Wipline 6100 amphibs can represent $250k of value on their own. Straight Edo 4930s are lower-value but cheaper to maintain.
• STC stack: Kenmore gross weight increase, stall fences, droop tips, long range tanks, and cargo pod all add real, market-recognized value.
• Airframe corrosion history: Saltwater-operated airframes trade at a 10–25% discount versus freshwater-only Beavers.
• Viking-supported status: Aircraft with current Viking SB compliance and traceable maintenance histories trade at premiums.

See valuation-methodology for the general framework.

• Tailplane front spar cracks (AD 2008-13-07 and successors): Recurring fluorescent penetrant inspection of the tailplane front spar web at the pick-up brackets, every 24 months. Early cracks were found at pick-up brackets and lightening holes. Active and non-negotiable.
• Wing strut/attach fitting inspections: Recurring inspections for corrosion and fatigue at wing strut attach points — particularly important on airframes operated in saltwater environments.
• Wing structure inspection and reinforcement ADs: New Zealand CAA and Transport Canada have issued cumulative wing spar inspection ADs; the FAA mirrors these for US-registered airframes.
• Main wing spar damage on SA01324CH-modified aircraft (2023 AD): Specific AD covering inspection and repair of main wing spars on Beavers fitted with this particular gross-weight-increase STC.
• Gear/float attach corrosion: Float-operated airframes suffer aggressive corrosion at float attach fittings, landing gear, lower fuselage. A pre-buy must include float pump-outs, a corrosion inspection, and ideally an IA who specializes in the type.
• R-985 Wasp Jr. quirks: Master rod bearings, cylinder wear, magneto reliability, prop shaft oil seals, and carburetor ice. Wasp Jrs are simple engines but need pilots who understand radial engine management (cold-start oil procedures, cylinder pre-oiling after long sits, careful leaning). Parts and overhaul support is specialized — Covington Aircraft, Tulsa Aircraft Engines, Younkin Aviation, and Radial Engines Ltd are the major shops.
• Fuselage/bulkhead corrosion on military surplus aircraft: L-20/U-6A airframes that sat in damp storage before civilian conversion often need significant structural repair that is not always evident on casual inspection.

Beaver insurance is expensive and tightly underwritten — this is a high-hull-value, float-operated, taildragger radial flown in austere environments. Typical ranges (2026):

• Hull values routinely $400k–$1.6M; underwriters scrutinize the declared hull value carefully.
• Hull premiums run roughly 2.0%–3.5% of hull value for recreational owners, lower (1.2%–2.0%) for high-time commercial operators with fleet policies.
• Typical private owner on a $600k piston Beaver on amphibs: $12k–$18k annual all-in (hull + liability).
• Liability limits are usually $1M smooth or $1M/$100k split.
• Underwriting requirements: Minimum 500 hours total time, 100+ hours tailwheel, 50+ hours floatplane time, seaplane rating, and almost always a type-specific checkout (Kenmore, Viking, or similar) before solo. First-year owners without Beaver time are usually required to fly 10–25 hours dual.
• Turbine Beavers are insured differently — hull values are much higher but premiums are slightly lower as a percentage because the turbine powerplant is viewed as more reliable. Turbine training from a factory-authorized provider is typically required.
• Commercial operators (Part 135 bush operations) see different risk profiles and are underwritten on fleet bases.

See insurance-underwriting for broader context.