Rockwell Commander 112/114

The Commander 112 and 114 are a family of four-seat, all-metal, low-wing retractable-gear singles originally designed by North American Rockwell's General Aviation Division and first flown in 1970. The 112 entered production in 1972 as a 200-hp Lycoming IO-360-powered competitor to the Piper Arrow and Beech Sierra, while the 114 arrived in 1976 with a 260-hp Lycoming IO-540 to compete with the Bonanza and Mooney 201. Roughly 1,315 total airframes were built across all variants: about 525 Commander 112s (including 112A/B/TC) and roughly 490 Rockwell 114/114As built through 1979, followed by approximately 127 Commander 114Bs and 27 114TCs produced during the Commander Aircraft Corporation revival in Bethany, Oklahoma from 1992 through 2002.

The airplane's distinctive character comes from its unusually roomy cabin (wider than a Bonanza), twin automotive-style front doors, beefy construction, and rock-solid stability. Owners love the ride quality, ramp presence, and visibility; detractors note the heavy empty weight, modest useful load, and pedestrian speed-per-horsepower. The type found its devoted niche as a comfortable touring and business traveler, and the 114B in particular is regarded as one of the most comfortable four-seat singles ever certified. After Commander Aircraft went bankrupt in 2002, the type certificate passed through several hands (CPAC, Inc. being the holder of record for most recent ADs), leaving owners dependent on a committed type club and a handful of specialty shops.

Cross-references: cross-country, business-travel, valuation-methodology, insurance-underwriting, maintenance-ecosystem.

The 114B and 114TC (also marketed as "Commander 115" late in production after minor updates) are materially different airplanes from the original Rockwell 114 — better engine cooling, updated systems, better fit and finish, and noticeably faster due to aerodynamic cleanups.

Book numbers tell only part of the story. The 112 is widely criticized as underpowered: with 200 hp pushing a heavy airframe, climb rates are modest (around 800 fpm at sea level), hot-and-high performance is poor, and a fully loaded 112 on a summer day is genuinely sluggish. Real-world cruise for a 112 is typically 120-125 KTAS on 9-10 gph — slower than a Cardinal RG on similar fuel.

The 114 is a different animal. The IO-540 gives it authoritative climb (1000+ fpm in the 114B) and honest 150-158 KTAS cruise on 13-15 gph. The 114B in particular holds 75% power up to about 8,000 ft (versus ~5,000 ft for the original 114) thanks to induction and cooling improvements. Turbocharged 112TC and 114TC airplanes unlock real utility in the West: 160 KTAS at 16,000 ft for the 112TC, and 180+ KTAS in the flight levels for the 114TC.

Useful load is the type's Achilles heel. A 114B with 68 gallons of fuel onboard leaves roughly 825 lbs for people and bags — enough for three adults and light luggage, but full-fuel full-seats is impossible for most examples. This is a cabin-class-feeling airplane with light-single payload. Stability is excellent: the Commander is a hands-off IFR platform and trims easily for long legs.

The Commander 114B makes an excellent illustration of the "pick two: people, fuel, distance" problem. With 68 gallons usable (408 lbs of fuel) and an 825-lb payload remaining at MGW:

• Full fuel + 2 pax + bags: Easy. 825 lbs minus two 180-lb adults leaves 465 lbs for the rear seats and bags — effectively unlimited for a couple. Range at 14 gph with VFR reserves is ~700 nm, or ~4.5 hours. This is the typical mission and where the 114B shines.
• Full seats (4 adults) + bags: Four 180-lb adults plus 100 lbs of bags consumes 820 lbs of the 825-lb payload. You are at gross with essentially no fuel budget — practically, fuel load must come down to ~30-35 gallons, giving only ~300 nm of range with reserves. The wide cabin tempts owners to load four, but weight-and-balance discipline is required.
• Full seats + half fuel: 34 gallons (204 lbs) plus four 180-lb adults and 50 lbs of bags puts you at MGW with ~300 nm of range — adequate for a regional business trip but nothing more.

The 112 is more constrained still: on a 200-hp airplane with similar useful load, the same scenarios apply but with slower cruise and worse hot/high climb. The 114TC's higher MGW (3305 lbs) buys back about 150-200 lbs of useful load versus the 114B, making it the more honest four-place cross-country machine — one reason it commands a significant price premium.

Cross-country (8) and business travel (7) are the type's sweet spots. Wide cabin, dual doors, good panel real estate, solid IFR stability, and honest 150+ KTAS cruise (in the 114 family) make it a comfortable tool for the 300-600 nm business trip. The 114TC extends that to serious weather-topping capability. See cross-country and business-travel.

Flight training (3) is poor: complex retract, expensive insurance for primary students, parts cost, and the 112's sluggish performance all argue against it. Some type clubs run transition training but it is not a primary trainer — see flight-training.

Backcountry (2) is out — low wing, retractable gear, modest prop clearance, heavy airframe, and no STOL heritage. Aerobatics (1) — not certified, not suitable.

Cargo hauling (4) is mediocre due to low useful load and no cargo door, though the wide cabin and double doors help with bulky items. Local fun (5) — it is comfortable and looks great on the ramp but burns a lot of fuel for pattern work. Surveying (4) — possible for simple missions but low-wing visibility and high fuel burn limit utility.

Original Rockwell-era 112s and 114s came with King KX-170B/KX-175B stacks, often with a single VOR/LOC and an ADF. Most survivors have been retrofitted — common configurations by price tier:

• Entry ($70K-$120K): Early 112/112A with steam gauges, single Garmin GNS 430 (non-WAAS or WAAS), legacy autopilot (Century II/III or ARC). Often still 14V electrical on pre-B airframes.
• Mid ($120K-$200K): 114/114A or clean 112B with GTN 650/750, GTX 345 ADS-B, Aspen PFD or dual G5s, rebuilt Century or S-TEC autopilot, engine monitor.
• Premium ($200K-$350K+): Commander-era 114B/114TC with Garmin G500 TXi or G600, dual GTNs, GFC 600 autopilot, GTS 800 traffic, full digital engine monitor, modern interior. Late 114TCs came from the factory with Meggitt/S-TEC glass.

The Commander's deep panel is friendly to modern installations, but 14V-to-28V conversion (on pre-B airframes) is a significant consideration for any major avionics update.

• Speed mods (Commander Aircraft factory kit): Wheel well fairings, flap gap seals, gear door modifications, aileron seals. Delivers 5-8 KTAS. Install cost $8-15K. Factory-installed on all 114Bs.
• MT composite propeller: Three-blade scimitar MT prop available for both 112 and 114. Reduces noise and vibration, improves climb, saves ~15 lbs. Cost $18-25K installed.
• Engine upgrades: 112 to IO-360 260-hp conversion (rare). More common: 114 IO-540 to IO-580 "Super Commander" upgrade adds ~40 hp, significantly improves climb and useful load. Cost $65-90K.
• Tip tanks / aux fuel: Adds 10-20 gallons and slight winglet effect. Modest cost, meaningful range benefit for the thirsty 114.
• Interior and soundproofing: Commander factory "Tiger" and "Alpine" interior kits; type-club-endorsed soundproofing kits.
• 28V conversion: Available for early airframes; expensive ($15-25K) but enables modern avionics loads.

Parts availability is fair and trending weaker. CPAC, Inc. holds the type certificate but is not a high-volume parts producer. The Commander Owners Group (commander.org) is the indispensable resource — they maintain tech documents, supplier lists, and a robust forum. Key specialty shops include Eagle Creek Aviation (Indianapolis), Naples Jet Center, and several Commander-focused independents in Oklahoma, Texas, and California.

Typical annual inspections run $3,500-6,500 for a clean airplane; budget $18,000-26,000 total annual ownership cost (fuel, insurance, hangar, reserves) for 100 hours a year. Expensive line items to watch:

• Hydraulic retract components: Seals, actuators, pumps — $1,500-6,000 when they fail.
• IO-540 overhaul: $45,000-55,000; IO-360 overhaul $28,000-35,000.
• Fuel bladders: $6,000-10,000 for a full set of four.
• Elevator spar inspections: Recurring eddy-current inspection under AD 2011-07-10.
• Airframe corrosion repair: Can be $10,000+ on a neglected airplane.

A&P familiarity is common but concentrated — a generic shop can handle routine annuals, but anything structural or type-specific benefits from a Commander specialist. See maintenance-ecosystem.

The 112/114 market is idiosyncratic because the fleet is small, parts support is limited, and airplanes fall into two camps: original Rockwell-era and revival Commander-era.

• 112 / 112A: $70-120K depending on avionics and engine time. Underpowered reputation caps upside.
• 112B / 112TC: $85-135K; turbo commands a modest premium but has higher operating costs.
• Rockwell 114 / 114A: $120-180K; the sweet spot for buyers wanting 260-hp performance on an older airframe budget.
• Commander 114B (1992-2002): $200-320K; newer airframes, 28V electrical, factory speed mods, and better build quality support strong residuals.
• Commander 114TC: $280-450K; rare, turbocharged, often heavily equipped.

Engine time matters more than usual — the IO-540 overhaul is $45-55K and there are few MSC options. Verify AD compliance (especially the elevator inspections) and any outstanding service bulletins. Commander Aircraft-era airplanes with full factory records and original interiors hold value well. See valuation-methodology.

The stabilator AD history is the defining maintenance story of this type. In the mid-1980s, reports of wing spar cracking (caused by stress from gear retraction cycles) and horizontal tail structural issues led Gulfstream Aerospace to issue a series of service bulletins. FAA AD 87-14-03 mandated inspections and repairs, and was later superseded by AD 90-04-07, which incorporated updated repair procedures from the third revision of the wing-spar service bulletins. After nearly three years of legal pressure from the Commander Owners Association, Gulfstream and Rockwell settled in spring 1989 on a $12+ million program to repair and upgrade the worldwide fleet — most airplanes in the U.S. received the repairs under that program, but buyers should verify compliance in the logbooks.

In 2011, AD 2011-07-10 (effective April 4, 2011) was issued against CPAC, Inc. as type-certificate holder, mandating repetitive inspections of the elevator spars after nine cracks were found across seven airplanes, including a 2.35-inch crack just below the outboard hinge on one example. Repeat eddy-current inspections are a recurring cost and scheduling item.

Other common problems:

• Landing gear: The hydraulic retract system is robust but aging pumps, actuators, and seals are expensive. Squat switch and microswitch issues common.
• Fuel bladders: Original bladders leak with age; replacement is costly (plan $6-10K for a full set).
• Control surface corrosion: Hidden corrosion in elevators, flaps, and wing root areas — particularly on coastal airplanes.
• Original panel wiring: 14V harness brittleness on pre-B airframes.
• Engine baffling (114): Original 114/114A runs hot; cooling baffle upgrades are often needed.

Pre-buy inspections by a Commander-familiar shop (not a generic A&P) are essential.

The Commander 112/114 sits in the insurance-underwriting "complex retractable single" category. Typical hull insurance runs $2,500-4,500 annually for a $200K 114B with an experienced, instrument-rated owner carrying 500+ hours total time and 25+ in type. Liability at $1M/$100K subs is typical. Underwriting quirks:

• Transition training required: Most underwriters demand 10-25 hours dual with a Commander-experienced CFI before solo.
• Retract time matters: Low-retract-time pilots pay significant premiums or face declines, especially on 114TC/114B.
• Orphan type surcharge: A few carriers surcharge the type due to parts lead times for claims repairs.
• Hull value volatility: Well-equipped 114Bs appraise higher than recent sales comps, creating underinsurance risk on total losses — owners should insure to replacement, not book.