PZL-Mielec M-18 Dromader

This page's certificate and weight were wrong before this pass, and both are corrected now. The page previously stored EASA.A.056 as its type_certificate — a real document for this exact airplane, but the EASA one, not the FAA sheet that governs a US-registered airframe. The FAA certificate is A47EU (Polskie Zaklady Lotnicze, current at Revision 11), confirmed via npx tsx scripts/drs.ts current A47EU, which lists PZL M18, M18A and M18B directly. A47EU's own text names EASA.A.056 as this airplane's separate European certificate, so both documents are used on this page — A47EU as the primary source (it governs US operation), EASA.A.056 cited separately for what A47EU does not state.

More consequentially: A47EU authorizes RESTRICTED CATEGORY ONLY, at a flat 9,260 lb maximum weight (takeoff and landing alike) — not the 11,684 lb this page previously carried with no category stated. There is no Normal Category anywhere on the FAA-validated certificate for any of the three models. 11,684 lb turns out to be EASA's separately-published RESTRICTED (ag-loaded) weight for the M18B specifically (5,300 kg) — the FAA's 9,260 lb actually sits almost exactly at EASA's own NORMAL-category figure (4,200 kg = 9,259 lb), even though the FAA sheet's single category is itself labeled "Restricted." See the frontmatter comment and the raw/tcds passages for the full reasoning; the short version is that every certificated figure on this page now describes the FAA-validated 9,260 lb configuration, and the heavier ag-loaded weight some other sources quote is a European-only figure not validated onto the US type certificate.

The PZL-Mielec M-18 Dromader ("Dromedary") is a Polish single-seat, low-wing, heavy agricultural and aerial firefighting airplane designed in the mid-1970s as a joint Polish-American project with Rockwell (Thrush Commander lineage influenced the airframe concept). First flight was in 1976 and series production began in 1978 at WSK PZL-Mielec. Over 760 airframes have been built, making it one of the most numerous heavy ag aircraft outside North America.

Powered by the Shvetsov-derived 9-cylinder ASz-62IR radial (967 shp takeoff, 5-minute limit, per FAA A47EU — see below; not the round "1,000 hp" figure this page previously used, which belongs to a higher-power EASA-only engine dash not on the FAA sheet), the Dromader carries a large agricultural hopper (3,300 lb / FAA A47EU's own figure, common to all three FAA-certificated models) and routinely operates as a Single Engine Air Tanker (SEAT) in Europe, Africa, Australia, Turkey, Greece, Spain, and the western United States. Operators fly them alongside Air Tractor (AT-301 through AT-802F Fire Boss) AT-802s and Ayres/Thrush S2R Thrush 510/710s on fire contracts; the Dromader's radial sound signature and distinctive stubby silhouette are unmistakable on the fire line. Production slowed dramatically after PZL-Mielec was acquired by Sikorsky/Lockheed Martin, but airframes are still built to order and the type remains in active firefighting service worldwide.

No cruise, climb, fuel burn, or runway-distance figure below is independently sourced this session. Neither FAA A47EU nor EASA A.056 publishes any performance data for any model — both are type-design documents that state limits, not performance — and no AFM was obtained this session (A47EU names one by title in its Equipment section, but it is not freely available online). The specific numbers this page previously carried (108-115 KTAS cruise, 700-900 fpm climb, etc.) have been removed rather than kept unverified; see the frontmatter's validator_exempt block.

What IS certificated: VNE is 151 knots CAS per FAA A47EU (280 km/h CAS per EASA A.056's Normal-category figure — the two documents agree here), VA is 123 knots CAS, and VFE is 108 knots CAS. The document explicitly defers to the AFM for airspeed limits "when agricultural spraying equipment is installed" — meaning these are the base/ferry-configuration limits, not necessarily the loaded-hopper numbers. Qualitatively, and consistent with any large radial-engine ag airplane, working-load performance with a full hopper is dominated by density altitude and field length rather than cruise speed, and oil consumption in the 1-2 quart/hour range is normal for the ASz-62 family — but this session could not independently verify specific numbers for any of these.

Useful load cannot be computed this session — neither FAA A47EU nor EASA A.056 publishes a typical empty weight for any model (both treat it, per A47EU NOTE 1, as a property of each individual aircraft's weight-and-balance report), so useful_load_lbs = max_gross_weight_lbs - empty_weight_lbs cannot be done without inventing one side of the subtraction — the same gap beech-58-baron and socata-rallye document identically.

What IS certificated, on the FAA sheet that governs a US-registered airframe: 9,260 lb maximum weight (takeoff and landing alike, identical across M-18/M-18A/M-18B), a 3,300 lb maximum hopper load, and 188 gal usable fuel (1,128 lb). The 3,300 lb hopper figure lines up almost exactly with EASA's own NORMAL-category hopper limit for the M-18B (1,500 kg = 3,307 lb) — not EASA's heavier RESTRICTED-category ag figure (2,200 kg = 4,850 lb) — which is the same pattern seen throughout this page: the FAA-validated configuration matches EASA's lighter "Normal" numbers rather than the heavier ag-loaded "Restricted" ones, even though the FAA sheet's own single category is itself labeled "Restricted." A specific working airframe's actual empty weight, and therefore its real fuel/hopper tradeoff on a given sortie, is a property of that airframe's own weight-and-balance report — exactly the qualitative point every SEAT/ag operator already plans around, and exactly why this page cannot generalize a number for it.

Compared to Air Tractor (AT-301 through AT-802F Fire Boss) AT-802F (a PT6A-67F turbine on a considerably heavier certificated airframe), the Dromader is a lighter, piston-engine airplane at what industry sources consistently describe as a materially lower acquisition price — which is part of why the type remains commercially viable despite its age and parts-support challenges, even though this session could not independently verify a specific payload or price comparison.

Leads found but not used as sources this session (Wikipedia and SKYbrary are cross-checks only, never a sole source, per protocol):

• PZL-Mielec M-18 Dromader - Wikipedia
• SKYbrary PZL-Mielec Dromader
• ATSB In-flight breakup VH-TZJ report — relevant to the ADs & Common Problems section below, not independently re-verified this session
• WSK PZL-Kalisz ASz-62IR aftermarket service
• Turbine Conversions Ltd. M-18 PT6 conversion

• Cargo hauling (9/10): This is the Dromader's purpose. A 5,000+ lb useful load in a single-engine piston airframe is matched only by the Air Tractor (AT-301 through AT-802F Fire Boss) AT-802 and Ayres/Thrush S2R Thrush 710. For fire retardant, water, fertilizer, or chemical dispersal it is world-class.
• Surveying (4/10): Low, slow, stable platform in principle, but the single-seat restricted-category certification and firefighting-focused cockpit make it a poor fit vs. dedicated survey platforms.
• Backcountry (3/10): Landing rolls and robust gear suit rough strips, but the airplane is a specialized restricted-category ag machine — not a recreational bush plane.
• Cross-country (2/10): 100-kt cruise, 48 gph, no IFR, single seat. Ferry flights between contracts are slow and expensive.
• Business travel / training / aerobatics / local fun (1/10): Not applicable — restricted category, single seat, no passenger carriage, no aerobatic certification.

See Cargo Hauling mission page for scoring rubric.

Dromaders are restricted-category VFR ag airplanes; panels are minimalist and purpose-built:

• Base SEAT panel: basic engine instruments (CHT, oil pressure/temp, fuel, MP, RPM), airspeed, altimeter, compass, slip ball, manual-drop controls, hopper level sight gauge.
• Fire contract panel (~$25-50k add): Garmin GTN 650Xi or GTR 225 comm, Trig TT22 mode-S transponder with ADS-B Out, Latitude Technologies IONode or Spidertracks satellite tracker (mandated by USFS SEAT contracts), simple GPS moving map (aera 760 or Garmin G3X Touch VFR).
• Fire attack avionics: Satloc/AgJunction GPS flow controller driving the hopper gate, Trotter/Simplex or Isolair gate hardware, FLIR integration on some aircraft.
• Two-way VHF AM/FM dual: required for Forest Service fire frequencies.

See Avionics Pricing Reference for rates.

• Turbine Conversions Ltd. PT6A-65AG conversion: replaces ASz-62IR with a 1,100-shp PT6A, saves ~500 lb nose weight, eliminates radial overhaul expense. Installed cost roughly $900k-$1.2M; doubles useful airframe life and transforms operating economics.
• General Airborne / European PT6A-67AG conversion: higher-power option seen on Greek and Turkish fire contracts.
• Hopper upgrades: Isolair fire gate, Simplex constant-flow systems, foam injection kits — $35k-$90k.
• Cockpit A/C: aftermarket cockpit air conditioning kits (Air Comm / PZL factory) — $25k-$40k; essentially mandatory for summer fire work.
• Wing fitting reinforcement kits: per PZL Service Bulletin (see ADs below); mandatory on fleet aircraft.
• Night firefighting lighting packages: required by some California and Greek operators.

• Parts availability: Fair overall. New parts are available direct from PZL-Mielec (now Sikorsky/Lockheed Martin) and WSK PZL-Kalisz for the engine, but lead times of 4-12 weeks are common and currency/export paperwork can be painful. US operators typically stock engine consumables and high-wear airframe parts themselves.
• Mechanic familiarity: Specialist. Only a handful of US shops (Forest Service contract maintenance bases, a few ag-specialty shops in the Central Valley, Texas, and the Pacific Northwest) have Dromader IAs. Overseas, maintenance is straightforward where PZL support networks exist (Spain, Turkey, Greece, Australia, Poland).
• Annual inspection cost: $12k-$25k for a clean airframe, $40k-$80k for an airframe needing wing fitting MPI and discrepancy resolution.
• ASz-62IR overhaul: Performed almost exclusively at WSK PZL-Kalisz in Poland; ~$85k-$110k plus shipping and core charges. TBO is 1,200 hours with calendar limits. Field repairs (cylinder replacement, magneto overhaul) available from a small US network.
• Expensive items to watch: wing attach fittings ($$$ if found corroded), main gear legs, hopper corrosion repair, radial cylinders (approximately $4,500 per cylinder exchange), propeller (AV-2 or Hartzell four-blade on STC'd aircraft).
• Annual operating cost (active SEAT operator, 300 hours/year): $60k-$90k direct, excluding crew and insurance.

See Maintenance Ecosystem for broader ag/fire operator economics.

The figures below, and the frontmatter's $120,000-$450,000 band, are UNVERIFIED this session. Controller.com returned zero PZL listings of any kind when checked directly on 2026-09-11 — see data/vault/raw/market/m18dromader-price-search-2026-09-11.md. This fleet transacts through ag-aviation specialist brokers and direct operator contact, not consumer GA classifieds that this session could reach; the band below predates this pass and is kept per runbook rule 27 rather than deleted, but should be read as an estimate, not a confirmed market observation.

Market is thin and driven almost entirely by fire-contract operators and foreign ag operators; there is no recreational Dromader market.

• Radial time remaining: ASz-62IR engines at mid-time (600+ hours SMOH) carry a significant premium; a run-out radial means $95k-$130k for overhaul at WSK Kalisz including shipping.
• Wing fitting inspection status: airframes with recent MPI compliance and no corrosion findings sell for 25-40% more than those due or overdue.
• Fire gate system: Isolair or Trotter constant-flow gates add $50k+; basic dump gates are much less valuable for SEAT contracts.
• Ag vs. fire configuration: Firefighting-ready aircraft (tracker, radios, foam, gate) command a premium of $75k-$150k.
• Turbine conversion: a PT6-converted Dromader trades in the $700k-$1.1M range depending on engine SMOH, vs. $150k-$300k for radial versions.
• Price tiers:
  • Radial, run-out / high-time wing: $120k-$170k
  • Radial, mid-time, fire-ready M-18B: $200k-$275k
  • Radial, fresh overhaul, recent fittings MPI: $300k-$450k
  • Turbine conversion: $700k-$1.2M

See Aircraft Valuation Methodology for formulas.

• AD 2000-18-12 / PZL SB M18/00/006 (Wing Attach Fitting): Corrosion in the lower wing attach fitting lug bore has caused fatigue crack initiation and at least two fatal in-flight wing separations — VH-TZJ (Ulladulla, Australia, 2013) and N2283M (Winnabow, NC, 2016). Requires repetitive magnetic particle and visual inspection of the lower wing fittings. This is THE pre-buy item; records must document MPI compliance at specified hour intervals.
• Recurring fatigue AD on center-section splice: heavy-gross M-18B requires tracking of ag-load cycles, not just hours.
• ASz-62IR cylinder cracking: finned-head radial cylinders occasionally crack between fins; track via SB compliance and differential compression.
• Magneto and ignition harness issues: Slick and PZL-supplied magnetos have limited service network outside Poland.
• Hopper corrosion: aggressive fertilizer and retardant chemistry corrodes the lower fuselage and hopper skin; inspect sump, gate hinges, and belly.
• Landing gear leg cracking: main gear leg attach fittings see heavy cycles on rough strips.
• Control pushrod wear: in the aileron and elevator circuits.
• Polish-language maintenance manuals: many older airframes still have Polish-only documentation, complicating US A&P IAs.

Restricted category ag/fire insurance is a specialist market — underwriters include Global Aerospace, Old Republic, Berkley Aviation, and AIG Aviation in the US; HDI and Allianz in Europe.

• Hull premiums: typically 3-5% of hull value per year for active SEAT/ag operators (e.g. $9k-$22k/yr on a $250k hull).
• Liability: $1M smooth is standard; some USFS SEAT contracts require $5M combined single limit with specific endorsements for retardant/chemical release and ground-crew operations.
• Underwriting: requires minimum 500 hours tailwheel, 200 hours ag/fire experience, recurrent ag school (Valley Ag Aviation or similar), and often PZL-specific transition training.
• Fleet operators: SEAT contractors with multiple Dromaders and Air Tractors get blanket fleet policies at better rates.
• Exclusions: night firefighting often excluded unless specifically endorsed; retardant release liability is commonly sub-limited.

See GA Insurance Underwriting for restricted-category insurance details.