Hatz CB-1
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 Hatz CB-1 is John Hatz's two-seat open-cockpit biplane of 1968, a plans-built steel-tube-and-wood design in the style of the 1930s with a 25 ft 4 in upper wing, 875 lb empty and 1,600 lb gross, and Jane's figures of 90 mph cruise, a 40 mph stall and 800 fpm on a 115 hp Lycoming O-235.
A Hatz is a Sunday-morning biplane, not a travelling machine: 78 knots with a 30-minute reserve gives about 170 miles, and the open cockpits, the helmet and the view over a round nose are the point. It is plans-built, so welding, wooden wing spars and ribs, rigging and fabric are the whole inspection and the builder's log the history, and engines from an A-80 to an O-320 have been fitted with the weight and performance following; the figures here are Jane's for one O-235 example. The Hatz Classic and Bantam are different aeroplanes on the same lineage and are often loosely called Hatz, so confirm which design the paperwork names. Landing a biplane with the nose hiding the runway needs currency. The owner may maintain it and the condition inspection needs an A&P or the repairman certificate; plans come from the Hatz Biplane Association.
Variants of the Hatz CB-1
- Hatz CB-1 · 1968 · 83 active · this page
Also consider
TAILFAX SCORE
Partial: 11.3 out of 30 (safety not scored, too few records)
Among 1–2 seat pistons (321 models)
Compare with…
Put Hatz CB-1 side by side with up to three other models.
- Hatz CB-1
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One email a day if anything changes: new ADs and NTSB records.
What it is
| Seats | 2 |
|---|---|
| Landing gear | tailwheel |
| Engines | — |
| Engine | Lycoming O-235 (115 hp; 85-150 hp fitted) |
| Horsepower | 115 hp |
| Fuel | — |
| Certification basis | amateur-built |
| Production start | 1968 |
| Production end | — |
| Endorsements required | — |
Performance
| Cruise (75 % power) | 78 KTAS |
|---|---|
| Range (75 %, standard fuel, 30-min reserve) | 174 nm |
| Service ceiling | — |
| Climb rate | 800 ft/min |
| Stall speed (Vso) | 35 KCAS |
| Takeoff over 50 ft | — |
| Landing over 50 ft | — |
Load and fuel
| Seats | 2 |
|---|---|
| Useful load | 725 lb |
| Full-fuel payload | — |
| Max takeoff weight | 1,600 lb |
| Empty weight | 875 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 | 108 |
|---|---|
| Active fleet | 83 |
| Median year built | 1998 |
| NTSB events, last 10 years | 1 |
| Fatal events, last 10 years | 0 |
| Events per 1,000 active, last 10 years | 12.05 · thin base (low)1 |
| Personal-flying events per 1,000 active | 12.05 · thin base (low)2 |
| Ownership transfers, last 24 months | 12 |
| Transfers per 100 active | 14.46 · thin base (low)3 |
| Airworthiness directives | 9 |
| Directives, last 5 years | 0 |
| Rate confidence | low |
- Events per 1,000 active, last 10 years: per 1,000 active aircraft · base 83 active.
- Personal-flying events per 1,000 active: per 1,000 active aircraft · base 83 active.
- Transfers per 100 active: per 100 active aircraft · base 83 active.
Peer scores6
| Peer class | Fixed wing single-engine, piston, 1 engine, 1-2 seats |
|---|---|
| Accident record | —1 |
| Severity | —2 |
| Access | 3.5 of 103 |
| Support | 5.3 of 104 |
| Liquidity | 2.5 of 105 |
| Overall (sum of the categories shown) | Partial: 11.3 out of 30 (safety not scored, too few records)6 |
- Accident record: class median 36.69 · 321 models in class.
- Severity: class median 13.04.
- Access: class median 1,000.
- Support: class median 77.5.
- Liquidity: class median 20.
- 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 8 · scores Sep 30