Cessna T303 Crusader

The Cessna T303 Crusader is the last all-new piston twin Cessna ever brought to market — a six-seat cabin-class twin that debuted in 1981 and soldiered on through 1986 in one of the worst general aviation downturns in history. Only approximately 297 production aircraft were delivered, making it one of the rarest post-1970 certified twins in North American skies.

The T303 traces its origins to the 1978 Cessna 303 Clipper prototype, a four-seat twin that Cessna hoped would slot between the 310 and the heavier 340. The Clipper flew on February 14, 1978, but market research quickly showed buyers wanted six seats, not four. Cessna responded with a ground-up redesign: stretched fuselage, re-engined to 250 HP per side, and a new bonded wing with a supercritical section. The name changed from Clipper to Crusader because Pan Am held trademark rights to "Clipper" for its fleet. The T303 Crusader prototype first flew on October 17, 1979, received FAA type certification under TCDS A34CE on August 24, 1981, and first deliveries reached customers in October 1981.

The design incorporated several forward-looking features: counter-rotating Continental turbocharged flat-six engines eliminating the asymmetric thrust problem on single-engine loss, a cruciform "T-crescent" tail derived from wind tunnel testing, trailing-link main landing gear for smooth landings, integral airstairs, and a genuinely spacious 47.75-inch-wide cabin that rivaled light pressurized aircraft of the era. Standard equipment included a full IFR avionics suite and pressurized magnetos — unusual for the price class.

Cessna positioned the T303 above the piper-pa34-seneca at a 1982 base price of $229,500, climbing to $278,450 by 1984. That pricing — roughly $50,000 more than a comparably equipped Seneca III — proved fatal in a collapsing market. Orders peaked in 1982 and dwindled to single digits by 1985–1986. When Cessna halted production, the type left behind a tiny orphaned fleet with expensive parts and no support pipeline. Today the T303 occupies a distinctive niche: more cabin room and true 25,000-foot capability than most light twins, but demanding ownership economics and a shallow parts pool.

The T303 found scattered commercial use in Colombia (air taxi), Haiti, and Guatemala (military liaison). Most surviving aircraft operate in the U.S., Australia, and Europe as owner-flown IFR personal transports.

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There is only one certificated production variant. The right-side engine (LTSIO-520-AE) rotates left-handed (counter-rotating) to eliminate the critical engine problem endemic to conventionally-configured twins. Cessna offered factory-optional equipment packages including: cargo door (added 1983 model year), yaw damper, cabin air conditioning, anti-ice systems, heavy-duty brakes and wheels, aft bulkhead relocation for extended cabin, and multiple avionics configurations. None of these options constitute separate type certificate variants.

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Cruise realities. Published cruise speed of 180 KTAS is achievable at altitude (FL180–FL200) at 75% power. Real-world owners operating at lower altitudes typically see 165–172 KTAS. The turbocharged engines maintain sea-level rated power to approximately 18,000 feet, which is the T303's primary performance advantage over naturally aspirated competition. Fuel burn at cruise is approximately 25–28 GPH total depending on altitude and power setting.

Single-engine performance. The 220 FPM published single-engine rate of climb is a sea-level, standard-day, max-gross-weight figure — the legal minimums for certification. At density altitude above 5,000 feet, loaded near gross, single-engine climb rate can become negligible or negative. Owners in mountain or hot-weather environments must treat the T303 as VMC limited rather than single-engine-climb capable. The published single-engine ceiling of 13,000 feet is generous only at lighter weights. The counter-rotating propellers mean there is no "critical engine" — either engine lost produces identical asymmetric demands — which simplifies training but does not improve the fundamental single-engine numbers.

Takeoff characteristics. The trailing-link gear and aft-positioned main gear create a strong tendency to over-rotate. Cessna's own documentation and instructors note that pilots must manage rotation carefully and then push forward after liftoff to prevent excessive nose-up pitch. This is a known and trainable characteristic but catches unprepared pilots.

Density altitude. The turbocharged engines maintain power well into the flight levels, but the airframe weight (5,150 lb MTOW) demands respect at high-elevation airports. Takeoff ground roll at high-density-altitude airports can easily exceed 2,000 feet at max gross.

VMC and Vsse. VMC is 65 KIAS. Vsse (minimum safe single-engine intentional speed) is 80 KIAS — a 15-knot buffer above VMC that Cessna built in as a safety margin. Never slow below 80 KIAS in single-engine flight training maneuvers.

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Baseline weights:

• Max gross weight: 5,150 lbs
• Typical equipped empty weight: 3,605 lbs (includes avionics, oil, unusable fuel)
• Practical useful load: ~1,545 lbs

Full fuel scenario:

• Fuel (153 gal × 6 lbs): 918 lbs
• Remaining payload: 627 lbs
• Typical occupants: Pilot (200 lbs) + 1–2 passengers (170 lbs avg) = 370–540 lbs
• Baggage remaining: ~90–260 lbs
• Range: ~835 nm (75% power, 180 KTAS, with 45-min reserve)
• Verdict: Two-person IFR trip with bags and full fuel is comfortable. Three adults with bags requires fuel reduction or careful CG management.

Full cabin scenario (6 adults):

• Six adults × 190 lbs average: 1,140 lbs
• Bags (light, 40 lbs/pax): 240 lbs
• Total payload: 1,380 lbs
• Fuel remaining: 165 lbs = 27.5 gallons
• Range: ~100–130 nm only
• Verdict: Full six-seat loads are severely range-limited. The T303 is a practical four-person airplane for meaningful trips.

Practical four-person IFR scenario:

• Pilot + 3 passengers (760 lbs) + luggage (200 lbs) = 960 lbs payload
• Fuel: 585 lbs = 97.5 gallons
• Range: ~535 nm with reserves
• Verdict: Comfortable four-person trip of 400–450 nm, which represents the T303's operational sweet spot.

CG considerations. The dispersed baggage system (nose bay, wing lockers, aft compartment) requires careful CG computation. The aft compartment is convenient but moves CG rearward aggressively when loaded. Always compute CG before flight — the T303's pitch sensitivity on rotation is amplified by aft CG. The optional aft bulkhead relocation (extended cabin) shifts baggage volumes and requires referencing the specific aircraft's weight and balance supplement.

Fuel planning notes. The integral bonded fuel tanks (153 gallons total usable across two wing tanks) provide no crossfeed option between tanks in the conventional sense — each engine feeds from its respective wing tank. Monitor fuel balance; asymmetric fuel burn requires attention in long-cruise or single-engine scenarios.

See missions/business-travel, missions/cross-country, missions/local-fun-flying, missions/cargo-hauling, missions/flight-training, missions/surveying, missions/backcountry-bush, missions/aerobatics.

Business Travel (7/10). The T303 is purpose-built for this role. The 47.75-inch cabin width exceeds many pressurized singles. Club-seat configuration, integrated airstairs, and a large nose baggage bay (150 lbs) plus wing lockers (120 lbs each) and aft compartment (200 lbs) deliver genuine four-place comfort. FL200 cruise capability means ATC can route T303 operators above most piston traffic. Deducted two points for single-engine margin concerns at high density altitude and the parts-availability burden in remote areas.

Cross-Country (7/10). 835 nm range on full tanks at 180 KTAS is competitive. Turbocharged operation in the high teens improves both speed and ability to top weather. Full IFR panel standard. Single-engine performance limits aggressive trip planning in IMC when operating heavy. Deducted three points for limited single-engine margins and high fuel cost.

Cargo Hauling (5/10). Useful load of approximately 1,545 lbs (practical equipped useful load) with 918 lbs fuel on board leaves roughly 627 lbs for payload — adequate for several bags. The dispersed baggage system (nose, wings, aft) complicates CG management with cargo. Full cabin-floor access and the optional cargo door make loading practical.

Local Fun Flying (3/10). The T303 burns 27 GPH to fly locally — economically painful for pattern work or short hops. Its turbocharged systems require proper warm-up and cool-down procedures, making it poorly suited to fly-in/fly-out sessions under 30 minutes.

Flight Training (2/10). Not a primary training platform. High operating costs, complex systems (turbos, counter-rotating props, dual electrics), and limited parts availability make it impractical as a training aircraft. Multi-engine MEL/instrument training is possible but expensive. School operators would face high insurance and maintenance burdens.

Backcountry/Bush (1/10). Low-wing, 5,150 lb MTOW, retractable gear with no prop clearance for soft fields. Completely unsuitable.

Aerobatics (1/10). Not certificated for aerobatic flight. Normal category only.

Surveying (4/10). The T303 offers reasonable payload for sensor equipment, good altitude range, and IFR capability. The cabin width accommodates camera installations. However, the specialized market for surveillance/survey aircraft favors high-wing platforms with better downward visibility, and parts availability limits deployment in remote areas.

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Factory original (1981–1984). Cessna delivered the T303 with a full IFR panel as standard — typically a KX 165 nav/comm pair, KNS 80 area nav, KN 62 DME, KT 76 transponder, and KFC 150 autopilot with flight director. The King Silver Crown stack was the era's prestige choice. Most surviving aircraft retain some of this original hardware in various states of repair.

Budget upgrade tier ($15,000–$35,000). Replace legacy nav/comms with Garmin GTN 650Xi or GNC 355 navigators, add ADS-B Out via GTX 335/345, and overhaul the original KFC 150 autopilot. Panel space is generous; the T303 cockpit has been praised as spacious for upgrades. Results in a legal IFR platform with GPS approaches.

Mid-tier upgrade ($40,000–$70,000). Full Garmin GTN 750Xi + 650Xi stack, GFC 500 or GFC 600 autopilot (or retained/overhauled KFC 150), Garmin GI 275 electronic flight instruments, GTX 345 ADS-B In/Out. Transforms the aircraft's situational awareness dramatically. The T303's large panel accepts two full-size 6-inch navigators without modification.

High-end upgrade ($80,000–$120,000). Garmin G500 TXi or G600 TXi PFD/MFD installation, GFC 600 autopilot with yaw damper integration, GTN 750Xi/650Xi, dual GI 275 standby instruments. At this tier, the T303's avionics rival modern aircraft and add significant resale value in a thin market.

Key consideration. The T303's rarity means avionics shops may not have prior T303 experience — requiring custom panel work. Budget extra time for fabrication and STC paperwork on complex installations.

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MT-Propeller 4-blade MTV-14 (STC available). FAA-approved 4-blade composite MT-Propeller MTV-14-D-C-F/CF(L)185-59b for T303 aircraft with Continental (L)TSIO-520-AE engines. Benefits include approximately 18 lbs weight savings per prop, 10% shorter takeoff distance over 50-foot obstacle at MTOW/SL/ISA, and significantly reduced interior and exterior noise. Approximately $20,000–$28,000 per propeller installed. Useful load improves by 36 lbs when both props are replaced.

Icing system modification (Cessna factory, 1986). Cessna devised a revised fairing and vortex generators mounted on the vertical stabilizer below the horizontal tail surface. This modification was the final resolution to the FAA's twice-rescinded known-icing approval. Aircraft with this modification and active deice boots are legal for flight into known icing conditions. Verify this modification's presence when buying any T303 intended for winter IFR operations.

Yaw damper. Factory-optional and available on the aftermarket. The T303 exhibits a yaw tendency in turbulence that owners describe as uncomfortable. The yaw damper is considered practically mandatory for instrument flight by experienced operators. Many aircraft already have this installed.

Avionics STCs. Garmin GTN 650/750Xi, GFC 500/600, G500/600 TXi installations have applicable STCs for the T303. Check with the installer for current STC coverage under their authorization.

No major engine STCs. Unlike the cessna-310-320 family which benefited from RAM Aircraft engine upgrade programs, no major engine replacement STCs exist for the T303. Operators are limited to factory replacement engines through Continental Motors or a Continental authorized remanufacturer.

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See maintenance-ecosystem for general twin-piston maintenance context.

Annual inspection cost. Expect $2,500–$4,500 for an uncomplicated annual inspection (labor only, no squawks) at a shop experienced with Cessna twins. Add $1,500–$5,000+ for typical squawks. The 50-hour nose gear AD inspection adds approximately $300–$600 every 50 hours regardless of annual timing.

A&P familiarity. The T303 is a specialist aircraft. Fewer than 300 were built, and most A&Ps have never worked on one. The TSIO-520 engine family is common in the 340, 414, and 421 fleets, so powerplant work is achievable by Continental-experienced mechanics. The airframe-specific systems (nose gear actuator, T303-specific landing gear, bonded wing) require a mechanic willing to study the maintenance manual. Factor in extra labor hours for first-time shop exposure.

Continental TSIO-520-AE specifics. These are turbocharged, intercooled Continental flat-six engines well-understood by the larger Cessna 400-series community. Continental Motors still manufactures overhaul parts. Factory new TSIO-520-AE engines are available through Continental. Field overhauls are available through multiple continental-authorized shops. Airpower Inc. lists rebuilt engines for the T303 specifically.

Parts scarcity by system:

• Engines (TSIO-520-AE): Good — same family as 340/414/421 engines
• Exhaust and turbocharger components: Fair — some interchangeability with other TSIO-520 applications
• Nose gear actuator assemblies: Poor — T303-specific, limited new-parts availability
• Brake system components: Fair — some crossover with other Cessna models
• T303-specific airframe hardware: Poor — salvage airframes are a primary source
• Avionics: Good — modern aftermarket avionics fit with STC support

Support organizations:

• Twin Cessna Flyer: The primary owner organization for Cessna twin owners; newsletters, seminars, and parts network
• Cessna Flyer Association (cessna.org): Has documented sourcing hard-to-find T303 parts and can be a critical resource
• Continental Motors: Direct engine support and parts

Maintenance reserve recommendation. Budget $15–$20/hour reserve for maintenance beyond the engine reserve. At typical utilization of 80–120 hours per year, this means $1,200–$2,400/year above fuel and engine reserves specifically for maintenance — realistic given the parts sourcing challenges.

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See valuation-methodology for the underlying methodology.

Market overview (2025). The T303 commands a relatively narrow price band given its rarity and limited demand pool. Current market pricing spans approximately $165,000–$340,000, with typical examples in the $210,000–$260,000 range. PlanePHD PAPI estimate as of January 2025: $278,088 for typical 1982–1984 models. The thin market (fewer than 10 aircraft typically listed worldwide at any time) means individual aircraft condition drives pricing more than model year.

Engine time impact. Fresh factory or field overhaul engines on both sides add $40,000–$80,000 of perceived value over run-out engines. The TSIO-520-AE has a 2,000-hour TBO. Engine reserve cost is approximately $25/hour per engine based on ~$50,500 overhaul cost. Budget reserve: $50/hour for both engines combined.

Nose gear compliance documentation. Aircraft with full, current AD 88-22-1/95-11-9 compliance records, including recent improved-fitting installation, command a $10,000–$20,000 premium over aircraft with incomplete or undocumented gear AD history.

Avionics premium. A full Garmin GTN 750Xi/650Xi + GFC 500/600 installation can add $30,000–$50,000 to asking price in the current market. Original King Silver Crown panels with no upgrades discount asking price by $15,000–$25,000 relative to midpoint.

Known icing modification. Aircraft with the 1986 Cessna icing fix (revised fairing and VGs) plus operative deice boots command a premium for buyers wanting legitimate known-icing capability. Add $8,000–$15,000 for verified FIKI compliance.

Yaw damper. Present and operative increases value by $5,000–$8,000. Absent or inoperative is a negotiating point.

Airframe time. The T303 fleet is aging — most airframes are in the 3,000–6,000-hour range. Below 3,000 total time commands a modest premium. Above 5,000 hours with documented inspection and repairs should be discounted unless accompanied by comprehensive records.

Price tiers by condition:

• Run-out engines, legacy avionics, deferred maintenance: $165,000–$185,000
• Mid-time engines (600–1,200 SMOH), partial avionics upgrade, clean logs: $200,000–$240,000
• Fresh-overhaul engines, full Garmin panel, current ADs, yaw damper, FIKI: $260,000–$340,000

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Active / Repetitive Airworthiness Directives

AD 88-22-1 / 95-11-9 — Nose gear actuator attach fitting. This is the T303's most persistent AD. The nose gear actuator attach bracket is subject to fatigue cracking. AD 88-22-1 established initial inspection requirements; AD 95-11-9 tightened the interval and updated the part. Requires repetitive 50-hour inspections of the nose gear actuator attach fitting or installation of an improved fitting. Multiple iterations of the "improved" fitting have still exhibited cracking in service. Budget $300–$600 per 50-hour interval for inspection and any necessary part replacement.

AD 95-9-13 — Fuel inlet valve replacement. Mandates replacement of original fuel inlet valves with an improved part. Applies to T303 and certain 400-series Cessna twins. If not already complied with on a prospective purchase, this is a pre-buy squawk.

AD (multiple) — Seat rail/latch pin. Applies to most Cessna models including T303. Requires repetitive inspections of seat rails, latch pin engagement, roller housings, and lock pin springs after NTSB reports of seats sliding on takeoff and approach. Standard Cessna fleet-wide AD.

AD — Alternate static air source placard obstruction. Requires verification that the part number identification placard does not obstruct the alternate static source selector valve port. Simple compliance, one-time inspection.

Known Problems and Pre-Buy Red Flags

Nose gear assembly. The nose gear system has been the T303's Achilles heel since production. Beyond the AD, the actuating bracket is prone to cracking even between AD intervals. The improved part introduced in AD 95-11-9 still fails. Any pre-buy inspection must include a detailed nose gear teardown. Budget for a nose gear overhaul as part of acquisition costs if not recently documented.

Turbochargers. Continental turbocharged engines of this era use Garrett turbos that can develop casting cracks and heat-related failures. The dual turbo system doubles inspection burden. Turbine oil contamination and bearing wear show up as oil streaks in the exhaust flow. Each turbocharger costs $3,000–$6,000 to replace. Inspect closely at pre-buy.

Magnetos — Slick 4200/6200 series. The pressurized magnetos used on T303 engines are prone to moisture contamination and failure. High-time magnetos on the T303 have elevated failure rates. Consider replacing at overhaul or on a calendar basis.

Alternator system. The standard 60-amp alternators are marginally adequate for T303 electrical loads when all systems are active (anti-ice, avionics, lights). Alternator drive belt misalignment and pulley wear is common. Water intrusion through the pilot-side ice window can affect circuit breakers. Inspect belt tension, pulley alignment, and all CB panels carefully.

Brake system. Owner reports consistently cite brake master cylinder and wheel cylinder failures. The hydraulic reservoir is undersized (four ounces) for the system's demands — any minor leak leads to brake fade quickly. A comprehensive brake system inspection and fluid change is prudent at purchase.

Fuel system. The drain valve is positioned behind the exhaust pipe, creating a fire hazard if fuel is not managed carefully during sumping. The fuel inlet valves (covered by AD 95-9-13) require replacement if not complied with. Auxiliary fuel pump failure rates are elevated compared to other Cessna twins.

Vertical stabilizer attach fitting. Vibration from the paired turbocharged engines at normal cruise RPM is higher than most twins, and the vertical stabilizer attach fittings have been reported to show wear at high airframe times. Inspect at annual.

Strobe light wiring. The strobe wiring runs adjacent to fuel vent lines and can chafe through in high-time aircraft. A potential ignition source near the fuel system — catch at pre-buy.

Parts scarcity. With only ~297 aircraft built, parts support is thin. Cessna no longer actively supports the type. Continental Motors still supports the TSIO-520-AE engines. Wastegate controllers, turbocharger parts, nose gear components, and T303-specific airframe parts can require sourcing from salvage airframes. The Cessna Flyer Association has documented rescuing T303s from grounding due to "impossible-to-get" parts. Factor this into operating cost projections — unexpected groundings of 30–90 days awaiting parts are realistic.

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See insurance-underwriting for underwriting categories and methodology.

Category. The T303 falls into the complex twin turbocharged category — higher risk than normally aspirated twins due to turbocharged system complexity, high cabin-class weight, and thin fleet experience base for underwriters. Only approximately five U.S. carriers quote T303 insurance (as of early 2020s).

Annual premium ranges (2025 estimates). Premiums have risen since 2021 data due to general GA insurance market hardening:

• Liability only ($1M per occurrence): $750–$1,100 for qualified pilots
• Liability + hull (hull valued at $230,000): $5,000–$8,500 for qualified pilots
• Less-qualified pilots (below 500 multi-engine hours): $7,000–$11,000+

Underwriting qualification thresholds. Underwriters typically require for standard rates:

• Private certificate with instrument rating minimum
• 1,000 total hours
• 500 multi-engine hours
• 100 hours in make/model (or type-specific checkout documented by an approved instructor)

Pilots below these thresholds will face substandard rates, limited hull coverage options, or difficulty finding coverage at all. The T303 is a high-performance, turbocharged, multi-engine complex aircraft — insurers expect commensurate experience.

Endorsements commonly required.

• Multi-engine complex endorsement
• High-performance endorsement
• Instrument proficiency check within preceding 12 months
• Annual or biennial simulator or aircraft-specific recurrent training (some carriers require this)

Hull underwriting quirks. The thin fleet and limited loss history makes actuarial pricing difficult. Some underwriters may decline to quote or may restrict operations (no single-pilot IFR night, no flight into known icing without specific approval). The nose gear AD history is a known underwriting concern — some carriers ask specifically about AD 95-11-9 compliance status.

Recommended approach. Use an aviation insurance broker with demonstrated experience placing light turbocharged twins, not a general aviation generalist. BWI, Global Aerospace, and Avemco are known to quote the type. Expect to shop multiple carriers for competitive pricing.

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