Hatz - Specifications 
     

  

I've always wanted, but never found, a comparison chart of the three Hatz models, so I decided to put something together.  The following are two charts: first is a specifications chart of the three versions of the Hatz and second is a chart outlining some of the main differences between the models.  The information came from their respective websites and as you can see they do not all report the same information so where you see empty cells, the particular website did not have any information listed.  For example, the Hatz Biplane Association website listed a "Landing Speed" for the CB-1, where the Hatz Classic and Bantam websites listed a "Stall Speed".  Also, the Hatz Bantam site was the only one to list a Vne speed and "Demonstrated Crosswind" speed.  

Any data in purple is data I added; either calculated based on other data already provided by the Hatz websites (like useful load and range), or obtained from known sources (like fuel burn for the O-200 and O-320) .

Specifications

 

CB-1

Classic

Bantam

Span

25' - 4"

25 ft.

23'-6"

Length

19'

19.2 ft.

19'-11"

Height

7' - 10"

7.8 ft.

 

Chord

50" Clark Y Airfoil

50" Clark Y

50" Clark Y

Wing Area

178 sq. ft.

180 sq.ft.

160 sq ft

Design weight empty

850 lbs.

1,050 lb

780 lbs

Useful load

550 lbs.

650lbs

540lbs.

Gross

1400 lbs.

1,700 lb.

1320 lbs

Wing loading

7.8 lbs per sq. ft.

8.88 lb. per sq.ft.

8.25 lbs/sq ft

Allowable G forces

5 positive, 3 negative

6+ / 4-

 

Landing speed

40 to 45 mph

 

 

Stall Speed

 

43 mph

27 mph

Vne

 

 

130 mph

Dem. Crosswind

 

 

12 knots

Cruise at gross

80 mph

115 mph

105 - 110 mph

Fuel capacity

18 gal.

28 gal.

18 gal.

Rate of Climb

 

1,000+fpm

800-1000 fpm
depending on the prop

Takeoff Distance

 

400 ft.

Under 300 ft.

Landing Distance

 

500 ft.

400 ft

Horsepower

 

150 - 160 hp.

120 hp

Engine

Cont. O-200

Lycoming O-320

Jabiru 6 cyl

Fuel Burn

5 gph

7.5 gph

5 gph

Range

200 mls (20 min. reserve

Approx. 3 hours with reserve

3 hours with reserve

 


Structural Differences - This is not a complete list, but it does cover the main differences.

 

CB-1

Classic

Bantam

Control Linkage

Cables: Aileron, Elevator, Rudder

Push Tubes: Aileron & Elevator.  Cables: Rudder

 

Ailerons

4 - Wood/Fabric

4 - Aluminum

2 (Bottom Wing) - Aluminum/Fabric

Cowling

Exposed Cylinders

Fully Enclosed

  Fully Enclosed

Fuselage

Flat Sided

More Rounded/Fuller. Lengthened 1 3/4 inches (vs. CB-1)

Flat Sided

Fuel Tank

Top Wing - Center Section

Top Wing - Center Section

Fuselage between firewall & front cockpit

Wing Ribs

Wood Truss

Wood Truss

Pressed Aluminum

Front Seat

 

**More reclined.  Moved back 2 inches (vs. CB-1)

 

Front Rudder Pedals

 

**Moved forward 2 inches (vs. CB-1)

 

Rear Seat

 

**More reclined.  Moved back 4 inches (vs. CB-1)

 

Rear Rudder Pedals

 

**Moved forward 3 inches (vs. CB-1)

 

Gear Legs

Exposed Tubes

**Lengthened 3 1/4 inches (vs. CB-1).  Covered.

Covered

** Information comes from Sport Aviation - October 1997 - Feature story on Billy Dawson's Grand Champion Hatz Classic.  This is the "first" Hatz Classic - NX51WD.

  
 

 

  

Produced by Doug Mowry  
Revised: April 29, 2007 .

mowryd@hotmail.com