Grumman G-44 Widgeon

The Grumman G-44 Widgeon is a five-place, twin-engine amphibious flying boat designed by Grumman in 1940 as a smaller, more affordable civil companion to the Grumman G-21A Goose. It first flew in 1940 and entered production in 1941. During WWII, the civilian line was diverted to the U.S. Navy (as the J4F-2) and the Coast Guard (J4F-1) for anti-submarine patrol and utility work. Postwar production resumed briefly as the improved G-44A (1944–1949), and the French firm SCAN built a license version (the SCAN 30) using inline engines and later Continental conversions.

A total of 317 Widgeons were built (276 Grumman + 41 SCAN), making it one of the rarer general-aviation twins still flying. The Widgeon earned a reputation as a rugged, honest, strikingly pretty amphibian that can land on fairly short runways or open water, carry five people plus baggage, and cruise faster than many single-engine bush planes. Today it is primarily flown by owner-operators who use it for adventure travel, remote cabin access, and lake country touring — it occupies a niche between single-engine floatplanes and the much larger Goose and Grumman G-73 Mallard.

The vast majority of airworthy Widgeons today have been converted away from the cranky 200 hp inverted-inline Ranger engines to 260–295 hp flat-six Lycoming GO-480 engines under the McKinnon "Super Widgeon" STC or similar conversions (Gannet, Magnum). Unconverted Ranger Widgeons are now uncommon outside of museum-quality restorations.

The G-44A's revised hull profile — deeper V forward, more rise of floor aft — cured the original G-44's tendency to porpoise on takeoff and is considered materially superior on the water. Most Super Widgeon conversions are based on G-44A airframes, though some G-44s have also been converted.

Book cruise for an unconverted Ranger G-44A is quoted as 133 KIAS at 75% and ~800 nm range on 138 gal, but real-world numbers are softer: owners routinely flight-plan 115–120 KTAS at 20 GPH total to preserve the aging Rangers. The Super Widgeon conversion brings a genuine 135–150 KTAS cruise, 1,750+ fpm climb (vs 700 fpm stock), and service ceiling near 18,000 ft. It also transforms single-engine performance from "barely positive at sea level" (stock Ranger) to a useful 200–300 fpm at light weights.

Water handling is honest but demands training. The hull gets onto the step relatively quickly and runs clean once up, but rough water above 18-inch chop is unwise — the Widgeon is a smaller hull than the Goose and will pound. Takeoff distances on smooth water at sea-level gross run 1,400–1,800 ft to liftoff. Land takeoff ground roll is roughly 1,000–1,200 ft, notably longer than a Baron given the draggy hull and smaller props. Glide is poor — the retracted gear still leaves a boat-shaped fuselage — so engine-out decisions must come quickly.

Density altitude hurts hard. At 6,000 ft DA and gross, even a Super Widgeon becomes a marginal twin; unconverted Rangers are essentially single-pilot-plus-fuel aircraft in mountain country in summer.

Unconverted Ranger G-44A at 4,525 lb gross:

• Full fuel (108 gal × 6 lb = 648 lb) leaves 637 lb payload — pilot + 2 adults + bags, or pilot + 3 adults with no bags.
• Full cabin (4 adults + pilot + 100 lb bags = 1,000 lb payload) leaves 285 lb of fuel ≈ 47 gal ≈ 2.0 hours + reserve ≈ 230 nm usable.
• Realistic two-person adventure trip: 4 hours at 22 GPH = 88 gal, 528 lb fuel, leaves 757 lb for two occupants + 350 lb gear; range ~460 nm.

Super Widgeon at 5,500 lb gross:

• Full fuel (typically 160 gal long-range tanks × 6 lb = 960 lb) leaves 1,295 lb payload — four adults + 500 lb bags, or five adults with light bags.
• Five-adult mission (1,050 lb payload + 100 lb bags) leaves 1,110 lb of fuel ≈ 185 gal — but max fuel is 160 gal, so full cabin + full fuel is possible. Range with full fuel and full cabin at 140 KTAS and 26 GPH ≈ 820 nm with reserves.

The Super Widgeon conversion fundamentally changes the payload-range story: it is the difference between "two people and a weekend bag" and "family bush vacation with gear" — which is why the conversion is nearly universal in today's flying fleet.

• Backcountry / Bush Flying (8) — This is the Widgeon's core mission. Amphibious gear lets it access gravel strips, grass, and water in the same trip. Hull is rugged, takeoff/landing distances are short for a twin, and the cabin swallows camping gear and coolers. Only deducted from a 9/10 because it cannot handle truly rough water or boulder-field beaches the way a floatplane on skis/tundra tires can.
• local_fun (9) — Few aircraft deliver as much head-turning, venue-opening fun. Lake-hopping, island lunches, and cocktail-hour water landings are unmatched.
• cross_country (6) — A converted Super Widgeon cruises at respectable speeds with a 5-place cabin, but fuel burn (24–28 GPH total) and pressurization absence limit true XC utility vs a Baron or 310. Unconverted Ranger versions rate 4/10 here.
• surveying (6) — Good visibility from the high wing and slow minimum maneuvering speeds make it usable for photo and fisheries work; twin safety is a plus over water. Deducted because op costs are high vs purpose-built singles.
• cargo_hauling (4) — Useful load of ~1,300 lb (stock) to ~1,800 lb (Super Widgeon at 5,500 lb gross) is modest for a twin and space is cramped compared to a 206 on floats.
• business_travel (4) — Slower, louder, and more maintenance-intensive than a modern cabin-class twin; only relevant if destinations are waterfront.
• flight_training (2) — Complex, multi, amphibious, high-insurance: not a rational trainer. Only useful as a checkout/transition platform for seaplane-multi ratings.
• aerobatics (1) — No.

Widgeon panels span a century of technology. Entry-level unrestored examples may still carry 1960s King radios, a single VOR, and ADF. Mid-market Super Widgeons ($300k–$400k) typically have a Garmin GNS 430W or GTN 650, one or two digital nav/comms, a Century or S-TEC autopilot, and a JPI or EI engine monitor. Top-of-market restorations carry dual GTN 750s, Garmin G500 TXi or dual G3X Touch, GFC 500/600 autopilot, ADS-B In/Out, and synthetic vision. Installation costs run 20–40% higher than a landplane twin because of panel access constraints and the need to route antennas to avoid water immersion of belly equipment. See Avionics Pricing Reference for baseline numbers.

• McKinnon Super Widgeon (STC SA4-576) — Lycoming GO-480-B1D 270 hp conversion, three-blade props, 5,500 lb gross weight increase, larger windows, emergency exit, optional retractable wingtip floats. Most common mod; parts are still supported via the Super Widgeon community. Delta: +30 KTAS cruise, +1,000 fpm climb, +1,000 lb useful.
• Gannet / PACE conversion — Higher-HP GO-480 variant (295 hp) from Texas-based PACE; rare, but offers even stronger climb and single-engine performance.
• Magnum Widgeon (O-540) — Direct-drive Lycoming O-540 conversion retains the gross weight increase without the geared GO-480's overhaul expense. Smoother, cheaper to own long-term but slightly less cruise performance.
• Continental IO-470/IO-520 conversions — Primarily on SCAN 30 airframes in Europe; some U.S. examples exist via field approval.
• Retractable wingtip floats — Reduces cruise drag by ~8 knots; popular addon during avionics/paint refurbishments.
• Hull reinforcement kits — Stainless keel strakes and step doublers extend hull life in rocky-water operations.

See Maintenance Ecosystem. The Widgeon is a specialist airplane. A general A&P can do routine work, but hull and step inspections, gear system maintenance, and engine mount/exhaust work benefit from shops with Grumman amphibian experience (Antilles Seaplanes, Dean Franklin Aviation heritage, and a few individual IA/DARs). Annual inspections typically run $8,000–$15,000 without discrepancies; a "real" annual that opens hull bays can easily exceed $25,000.

Parts availability is "fair" overall: airframe parts are scarce but the owner community (Grumman Widgeon Owners Group) maintains a parts pool and fabrication sources. GO-480 engine parts flow through standard Lycoming channels; Ranger L-440 parts are the single worst supply-chain issue in Widgeon ownership and push most owners eventually to convert. Expected expensive items include propeller overhauls ($8k–$12k each), gear system overhaul, hull bladder replacements, and eventually a corrosion repair project.

Annual cost estimate (insurance + hangar + annual + $10k reserves for engines/hull) for a typical mid-market Super Widgeon flown 80–100 hrs/year: $35,000–$45,000 before fuel. Fuel at 25 GPH × 100 hrs × $6.50/gal = $16,250. All-in direct operating cost roughly $55,000/year.

See Aircraft Valuation Methodology for the general framework. Widgeon-specific drivers:

• Engine conversion status drives 40% of value. A Ranger-powered unconverted G-44A in average condition lists $180k–$240k; a mid-time Super Widgeon lists $300k–$400k; a recently-restored Super Widgeon with modern glass lists $450k–$550k.
• Hull condition and corrosion history — A freshwater-only Widgeon commands a 25–40% premium over one with any saltwater time.
• G-44A vs G-44 — The deeper-hull G-44A adds 10–15% over an original G-44 with equivalent panels and engines.
• Time since last major hull inspection/refurbishment — Hull bay opens within last 5 years add significant comfort and value.
• Wingtip floats, retractable floats, paint, interior — Each adds incremental value but is secondary to engines and hull.
• Documentation of STCs — Field-approved mods without clean 337s are a valuation trap.

The Widgeon fleet has relatively few recurring ADs by FAA standards — the big-ticket items are structural and corrosion, not component-level. Key concerns:

• Hull corrosion — Especially at the keel, chines, step, and bilge frame stations. Saltwater operation without rigorous rinse-down is fatal to airframe value. A proper pre-buy must include hull bay inspection with rivets bucked and bilges pumped dry.
• Wing spar corrosion at the hull-to-wing centersection carry-through. Repairs can exceed $50k.
• Main gear trunnion wear and retraction linkage — unique Grumman mechanical gear is reliable but parts are bespoke.
• Ranger engine availability — OEM parts (cylinders, crankshafts, mag adapters) are essentially NOS or hand-made. Ranger Widgeon owners who want to keep the originals must cultivate relationships with the handful of specialty shops still supporting the L-440; overhaul cost and downtime exceed the Lycoming GO-480 in practice.
• GO-480 gearbox wear — Super Widgeon's geared Lycoming is an expensive engine to overhaul ($55k+ per side) and has a historic reputation for gearbox sensitivity if operated outside of the proper RPM/MP envelope.
• Fuel bladder leaks — Original rubber cells age out; replacement via Eagle or Floats Inc. bladders is a recurring refurbishment item.
• Water rudder and anchor gear — Small but expensive bits that are frequently missing or non-functional on neglected examples.

Widgeons fall into a specialist niche (vintage amphibious twin) that only a handful of underwriters will quote — see GA Insurance Underwriting. Typical hull-plus-liability premiums run $7,500–$12,500/year for an owner with 500+ hours TT, multi-engine sea rating, and Widgeon-specific transition training. New owners without sea-multi experience may be denied outright or required to train for 25+ dual hours. Smooth-water operations and inland base airports yield better rates than coastal/saltwater operations. Hull values above $500k push premiums to $14,000+.

Named-insured training requirement is effectively universal — insurance will require dual instruction with a Widgeon-qualified CFI (a short list of instructors nationwide).