Acro Sport I
These figures describe a typical build. Each aircraft of this design was built by its owner, and the one you are looking at may differ.
The Acro Sport I is Paul Poberezny's single-seat aerobatic biplane of 1972, the EAA's plans-built design for homebuilders: a steel-tube fuselage and wooden wings of 19 ft 7 in span, 1,350 lb gross, flown with Lycomings from 100 to 180 hp and quoted at 130 mph cruise and a 50 mph stall.
A single-seat plans-built biplane is the hardest category to buy sensibly, because there is no two-seat version of this exact aeroplane to learn in, every example is one builder's interpretation of fifty-year-old plans, and the figures here come from an encyclopaedia with a 180 hp engine that many builders never fitted; expect a lighter, slower aeroplane on an O-320 or smaller and treat the weight-and-balance as the only trustworthy number. Welding, spruce spars, ribs and fabric are the inspection, and tailwheel biplane currency is the pilot requirement. It is cheap to own and fly as aerobatic aeroplanes go. The owner may maintain it and the condition inspection needs an A&P or the repairman certificate; Acro Sport Inc still supplies plans.
Variants of the EAA Acro Sport
- Acro Sport I · 1972 · 36 active · this page
- Acro Sport II · 84 active
Also consider
TAILFAX SCORE
Not enough data for an overall score yet
Among 1–2 seat pistons (319 models)
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Put Acro Sport I side by side with up to three other models.
- Acro Sport I
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What it is
| Seats | 1 |
|---|---|
| Landing gear | tailwheel |
| Engines | — |
| Engine | Lycoming O-360 (180 hp as published; 100-180 hp fitted) |
| Horsepower | 180 hp |
| Fuel | — |
| Certification basis | amateur-built |
| Production start | 1972 |
| Production end | — |
| Endorsements required | — |
Performance
| Cruise speed | 113 KTAS |
|---|---|
| Range | 304 nm |
| Service ceiling | 20,000 ft |
| Climb rate | 3,500 ft/min |
| Stall speed (Vso) | 43 KCAS |
| Takeoff over 50 ft | — |
| Landing over 50 ft | — |
Load and fuel
| Seats | 1 |
|---|---|
| Useful load | 450 lb |
| Full-fuel payload | — |
| Max takeoff weight | 1,350 lb |
| Empty weight | 900 lb |
| Usable fuel | — |
| Fuel burn at cruise | — |
Cost of ownership
| Price, low | — |
|---|---|
| Price, high | — |
| Prices as of | — |
| Engine TBO | — |
| Overhaul cost, low | — |
| Overhaul cost, high | — |
The fleet and its record
| Registered, all time | 81 |
|---|---|
| Active fleet | 36 |
| Median year built | 1982 |
| NTSB events, last 10 years | 0 |
| Fatal events, last 10 years | 0 |
| Events per 1,000 active, last 10 years | 0 · thin base (low)1 |
| Personal-flying events per 1,000 active | 0 · thin base (low)2 |
| Ownership transfers, last 24 months | 7 |
| Transfers per 100 active | 19.44 · thin base (low)3 |
| Airworthiness directives | 4 |
| Directives, last 5 years | 0 |
| Rate confidence | low |
- Events per 1,000 active, last 10 years: per 1,000 active aircraft · base 36 active.
- Personal-flying events per 1,000 active: per 1,000 active aircraft · base 36 active.
- Transfers per 100 active: per 100 active aircraft · base 36 active.
Peer scores6
| Peer class | Fixed wing single-engine, piston, 1 engine, 1-2 seats |
|---|---|
| Accident record | —1 |
| Severity | —2 |
| Access | —3 |
| Support | 2.7 of 104 |
| Liquidity | 4.6 of 105 |
- Accident record: class median 36.69 · 319 models in class.
- Severity: class median 13.33.
- Access: class median 1,000.
- Support: class median 79.
- Liquidity: class median 19.91.
- Each of the five categories places the model within its peer class, from 0 (the worst of the class) to 10 (the best): a position among comparable models, not a grade. The overall score is the sum of the categories shown that are scored, out of 10 for each (50 when all five are); it is given only when at least 4 of the five are scored, and it can be set against another model's only when both are in the same peer class and scored on the same categories. When accident record and severity cannot be scored because the model has too few records, the other three give a partial score out of 30, labelled as such; it is never set against a full score.
Data as of: FAA registry Sep 28 · NTSB Oct 2 · ADs Oct 6 · scores Sep 30