Piper Warrior PA-28-161: Specs, Performance And POH Guide

The Piper PA-28-161 Warrior II is one of the most widely flown four-seat training and touring aircraft ever built. If you learned to fly in the United States, there is a good chance you either trained in one, shared a ramp with one, or rented one for a weekend cross-country. This page is a plain-English reference to the aeroplane, its specifications, its place in the Piper Cherokee family, and what you will find inside its Pilot's Operating Handbook.

What The PA-28-161 Warrior II Is

The PA-28-161 is a single-engine, four-seat, fixed-gear, low-wing monoplane produced by Piper Aircraft. It belongs to the PA-28 family, universally known as the Cherokee line, which Piper launched in 1961 as a simpler and cheaper answer to the Cessna 172. The number "161" in the designation refers to the aircraft's certificated horsepower rating rounded from its 160 hp Lycoming engine, following Piper's convention of naming PA-28 variants by power (PA-28-140, PA-28-151, PA-28-161, PA-28-181 Archer, PA-28-235 Cherokee 235, and so on).

People search for this aeroplane under a dozen names. Piper Cherokee Warrior, Piper Warrior II, Piper Warrior PA-28, Cherokee Piper Warrior, Piper Cherokee 161, PA28-161, PA 28 161, piper pa28 warrior ii, and the common misspelling "piper warrier" all point at the same airframe. The formal type certificate designation is PA-28-161, and the marketing name applied to the 1977 model year onward is Warrior II.

Model History: Warrior, Warrior II And Warrior III

Three distinct Warriors exist, and pilots routinely confuse them.

The Original Warrior (PA-28-151)

Introduced for the 1974 model year, the PA-28-151 Warrior was the first Cherokee to carry the new semi-tapered wing. It used a 150 hp Lycoming O-320-E3D. Searches for "piper warrior pa 28 151" are looking for this first-generation aircraft. It was produced only through 1976.

The Warrior II (PA-28-161)

For the 1977 model year Piper substituted the 160 hp Lycoming O-320-D3G and redesignated the aircraft PA-28-161 Warrior II. This is the version that became the backbone of American flight training. Production of the Warrior II ran through the early 1990s. The extra ten horsepower is modest on paper but noticeably improves climb performance on a warm day at gross weight, which is exactly the condition a flight school cares about.

The Warrior III (PA-28-161)

In 1995 Piper reintroduced the type as the Warrior III. The type certificate designation stayed PA-28-161 and the engine stayed the O-320-D3G, so the airframe and powerplant are functionally the same aircraft. What changed was the cabin and panel: a redesigned instrument panel, updated interior trim, improved soundproofing, a new overhead ventilation system, and in later production years modern avionics including glass primary flight displays. Because the type designation did not change, searches for "piper warrior 3 poh" and "piper warrior poh" return closely related but not identical documents — the Warrior III handbook carries its own report number and its own performance section.

How To Tell Them Apart

The quickest exterior tell between a Warrior and an older Cherokee is the wing. Cherokees built before 1974 use the constant-chord "Hershey bar" wing — a rectangular planform with no taper. Every Warrior uses the semi-tapered wing, which is constant-chord inboard and tapered outboard, with a longer span and greater wing area. Between a Warrior II and a Warrior III the giveaway is inside: the Warrior III has a modern, symmetrical instrument panel with a proper avionics stack and circuit breakers grouped on the right, where the Warrior II retains the older Piper panel layout. Between the 151 and the 161 there is no external difference at all — you check the data plate and the aircraft's registration records.

Airframe And Engine

The Warrior II is an all-metal, semi-monocoque, riveted aluminium airframe with a single low-mounted wing. The cabin has two doors' worth of ambition but only one door, on the right side, which is a characteristic Cherokee quirk: passengers board first and the pilot climbs in last. There is a small baggage door on the left rear fuselage.

The powerplant is a Lycoming O-320-D3G: a four-cylinder, horizontally opposed, air-cooled, carburetted engine of 320 cubic inches producing 160 horsepower at 2,700 rpm. It drives a fixed-pitch propeller, which means there is no propeller control in the cockpit — power is set with the throttle alone and monitored on the tachometer. Because the engine is carburetted rather than fuel-injected, carburettor heat is a real item on the checklist and carburettor icing is a real hazard in humid conditions.

The landing gear is fixed tricycle gear with a steerable nosewheel linked to the rudder pedals, oleo-strut main legs, and no retraction system to fail. Flaps are manually operated with a floor-mounted "Johnson bar" between the seats, with detents at four notches. That mechanical simplicity is the reason the Warrior remains popular with flight schools four decades after production peaked: there is very little on the aircraft that can be broken by a student.

The semi-tapered wing deserves a specific mention. Compared with the earlier Hershey bar wing it produces a gentler stall, better low-speed handling, and a slightly better climb, at the cost of a small amount of cruise speed. It is one of the reasons the Warrior has a reputation as a forgiving trainer.

Dimensions, Weights And Capacities

Figures below are typical published values for a standard Warrior II. Your aircraft's actual empty weight and useful load come from its individual weight and balance record, not from any table on the internet.

The useful load number is where the Warrior's practical limits show. With full fuel at 48 gallons — roughly 288 pounds — a typical Warrior II has around 660 to 690 pounds left for people and baggage. Two adults and full fuel is comfortable. Four adults and full fuel is generally not possible, and the honest answer for most Warriors is that you carry either full seats or full tanks, not both. The baggage compartment is limited to 200 pounds and is aft of the rear seats, so loading it heavily moves the centre of gravity aft.

Typical V-Speeds And Performance

These are the commonly published figures for a Warrior II at maximum gross weight in standard conditions. Every one of them must be confirmed against the POH for your specific aircraft before flight.

Note the spread in the climb and ceiling numbers. Different model years, different propeller part numbers, and different published test conditions produce different book figures, which is precisely why a generic table is a starting point and the handbook is the authority.

What The POH Contains

The Pilot's Operating Handbook for a PA-28-161 follows the GAMA standardised format, which means every section appears in the same order in every modern general aviation handbook. Learning the order once means you can find anything in any aircraft's book.

Section 1 — General

Three-view drawings, principal dimensions, engine and propeller data, fuel and oil specifications, and a glossary of the abbreviations and symbols used throughout the book. This is also where you confirm you are holding the right handbook for the right serial number range.

Section 2 — Limitations

The legally binding operating envelope: airspeed limitations and markings, powerplant limitations, weight and centre of gravity limits, approved manoeuvres, flight load factors, fuel limitations, and the required placards. Nothing in this section is advisory. Exceeding it is exceeding the certificated envelope.

Section 3 — Emergency Procedures

Engine failures on takeoff, in flight and during approach; engine fire; electrical failures; loss of oil pressure; open door in flight; spin recovery; forced landing procedures. Items in bold are memory items and are expected to be executed without reference to the book.

Section 4 — Normal Procedures

Preflight inspection walkaround, before starting, starting, taxi, run-up, takeoff, climb, cruise, descent, approach and landing, and shutdown. This is the section your flight school's checklist is derived from, and if the checklist and the handbook ever disagree, the handbook wins.

Section 5 — Performance

Takeoff and landing distance charts, climb performance, cruise power settings, range and endurance, and stall speeds at varying bank angles and weights. Almost every chart takes multiple inputs — pressure altitude, temperature, weight, wind component, runway surface — and is worked by entering at one edge and stepping between reference lines.

Section 6 — Weight And Balance

The aircraft's individual equipment list, its as-weighed empty weight and empty CG, loading arms for each station, and the CG envelope chart. This section is aircraft-specific in a way no other section is: the numbers in it belong to that one tail number.

Section 7 — Systems Description

How the airframe, flight controls, fuel system, electrical system, vacuum system, pitot-static system, brakes, heating and ventilation actually work. This is the section pilots skip and then wish they had read the first time something behaves unexpectedly.

Section 8 — Handling, Servicing And Maintenance

Ground handling and towing, tie-down, servicing points, tyre pressures, oil and fuel servicing, cleaning and care, and the inspection intervals the owner is responsible for. Deeper maintenance procedures live in the separate Piper maintenance manual, which is what people are looking for when they search for a "piper warrior maintenance manual" — that is a different publication from the POH and is intended for certificated mechanics.

Section 9 — Supplements

One supplement for each piece of optional or aftermarket equipment installed: autopilots, GPS navigators, auxiliary tanks, STOL kits, and any Supplemental Type Certificate modification. A supplement can override the main body of the handbook for the system it covers, which is why an unfamiliar aircraft's supplements are worth reading before you fly it.

How To Read A Performance Chart

Performance charts are the part of the handbook most pilots use least well. The method is always the same. Establish your inputs first: pressure altitude from setting 29.92 in the altimeter, outside air temperature, actual takeoff weight from your loading calculation, headwind or tailwind component, and runway condition. Enter the chart at the left edge at your pressure altitude and temperature, move right to the reference line, then follow the guide lines proportionally — not parallel to them — to your weight, then to your wind, then to your obstacle height. Read the answer off the right edge.

Then apply judgement. Book figures come from a new aeroplane, a new engine, a smooth paved runway, and a professional test pilot flying the exact technique described in the notes. A thirty-year-old trainer with a tired engine and a student at the controls will not match it. Adding a substantial safety margin to book takeoff and landing distances is standard practice, and many operators require a fixed percentage increase in their own procedures.

Why POH Figures Are Aircraft-Specific

There is no such thing as "the" PA-28-161 handbook. Piper issued different handbooks by serial number range and model year, and each individual aircraft's handbook is further customised by its own weight and balance record and its own set of supplements. Two Warriors parked side by side can have empty weights differing by more than a hundred pounds, thanks to different avionics, different interiors, different paint, and decades of accumulated modifications. That difference lands directly on useful load, on CG position, and therefore on what you can legally carry.

This is why a downloaded PDF found on the internet is a study aid and nothing more. The document that is legally required to be aboard, and legally authoritative for flight, is the FAA-approved Airplane Flight Manual and Pilot's Operating Handbook issued for that specific tail number, complete with its current revisions, its own weight and balance data, and the supplements for the equipment actually installed in it.

Where To Get The Official Manual

We do not host, reproduce, or distribute the Piper Pilot's Operating Handbook. It is a copyrighted publication of Piper Aircraft, Inc., and there are good safety reasons beyond copyright not to circulate loose copies: an uncontrolled PDF has no revision status, and a superseded handbook is worse than no handbook.

To obtain a legitimate copy:

• Order directly from the Piper Aircraft publications department, which sells current handbooks and revision services by aircraft model and serial number.
• Order through an authorised Piper dealer or service centre, who can confirm the correct report number for your serial number.
• For an aircraft you own, check the aircraft's records — the original handbook should have been transferred with the aircraft, and Piper can supply a replacement keyed to the serial number.
• If you are renting or training, the operator's aircraft has its handbook aboard. Ask to read it on the ground before you fly. Any good flight school will hand it to you.

To be completely plain about it: the official, current POH issued for a specific tail number is the only legal authority for the operation of that aircraft. A generic PDF, this page, a checklist card, or any third-party summary is not a substitute for it.

What It Is Like To Fly

The Warrior is honest. That is the word instructors reach for, and it is the right one. The low wing puts you in the aeroplane rather than under it, and the single door means you settle into the seat rather than step into a room. Visibility over the nose in the flare is good; visibility in a turn is worse than a high-wing aircraft, which is why Cherokee pilots learn to lift a wing before turning.

On the ground the nosewheel steering is direct and positive and the aircraft taxis with authority. The run-up is short: two magnetos, carburettor heat, engine instruments. On the takeoff roll acceleration is unhurried at 160 horsepower, and the aeroplane wants to fly off at around 55 knots if you let it. In the climb at 79 knots the nose attitude is modest and you can see where you are going.

In cruise it is stable and slightly heavy in pitch, which is exactly what you want in an instrument trainer. It holds an altitude without much attention, trims easily, and rides turbulence better than a lighter aeroplane. It is not fast. Around 115 to 120 knots true is what you get, and no amount of technique changes that.

The stall is the Warrior's calling card. With the semi-tapered wing the aircraft gives plenty of aerodynamic warning — buffet, a soft nose, a stall warning horn well before the break — and the break itself is gentle and straight ahead if the ball is centred. Recovery is a matter of releasing back pressure and adding power. It is a genuinely difficult aeroplane to frighten yourself in, which is exactly why so many pilots' first solo happened in one.

Landings reward patience. The Warrior floats if you carry extra speed, because the low wing sits in ground effect and does not want to stop flying. Fly the numbers, arrive over the threshold at the book speed, and it settles predictably. Carry ten extra knots and you will use a lot of runway learning why airspeed control matters. Every pilot who trained in a Cherokee has that lesson.

Fly A Warrior At Van Nuys

Reading about an aeroplane only gets you so far. If you are in Los Angeles and you want to know what a Piper actually feels like with your own hands on the controls, the fastest way to find out is a discovery flight — a real flight, with a certificated flight instructor, where you do the flying.

We fly out of Van Nuys Airport, which puts the San Fernando Valley, the Santa Monica Mountains, Malibu and the coastline within a few minutes of takeoff. A discovery flight is the standard first lesson: a short preflight briefing, a walkaround, and then roughly half an hour to an hour in the air with the instructor demonstrating and then handing you the controls. If you go on to train, the flight counts toward your logbook time.

• Book a discovery flight in Los Angeles
• Browse all discovery flight options

Whether you end up flying a Warrior, a Diamond or a Cirrus, the first hour in the air is the one that tells you whether the rest of it is for you.