Main Menu

CO-z Development Corp Cozy / Mk.IV


Cozy Mk.IV

Cozy is designer Nat Puffer’s side-by-side version of Burt Rutan’s Long-EZ. It has a larger instrument panel, full dual controls, a large baggage compartment and the same efficiency, speed and range as Long-EZ, allowing passenger to assist with piloting/navigating, and makes long trips more pleasant and less fatiguing, as well as adding a margin of safety in bad-weather flying.
The Cozy MK IV is a high-performance, four-seat canard aircraft which is comfortable, efficient, and economical to build. It has a range of about 1,000 miles and a top speed of 200 mph. When constructed according to plans and operated within the approval C.G. range, the canard configuration makes it highly resistant to stalls or loss of position control. The MK IV features full dual control and two-axis trim. The composite construction is very strong, resistant to corrosion and fatigue. The MKIV features the same moldless construction as the Cozy. It used the same basic materials of foam, glass, cloth, and epoxy.




AeroCad Inc also licence manufacture a development of the Cozy as the AeroCanard.
Aircraft Spruce & Specialty Co. has acquired all existing inventory, tooling, and drawings for the prefabricated metal parts used in construction of the popular Cozy III and Cozy Mark IV aircraft as of January 1, 2004. Ken Brock Manufacturing Co. of Stanton, CA produced the metal parts for the construction of the Cozy and Long-EZ aircraft since the mid-1970's until ceasing business operations on December 31, 2005. As the owner of the design rights for the Cozy Mark IV and the source for plans and kits, Aircraft Spruce continues to sell Brock's parts. There was no remaining inventory of some of the parts, but there are new alternate sources on most of them.
These designs are protected with U.S. copyrights, and Aircraft Spruce has licensed no one else to copy all or any part of these designs to sell, loan, or give to others.


Greg Richter converted his Cozy III from a Mazda RX7 motor car engine to General Electric T58 turbine jet engine power. The transformation was performed by Valerie Harris and Robert with EZJET at Covington, Tennessee, in 1991.


Nov 83


Cosy Classic
Engine 118-hp Lycoming 0-235.
Wingspan 26.1 ft
Gross Wt. 1500 lb.
Empty Wt. 850 lb
Fuel capaci-ty 52 USG
Cruise (75 percent) 180 mph.
Climb rate (solo) 1500 fpm
Climb rate (gross) 900 fpm.
Takeoff run (solo) 670 ft
Takeoff run (gross) 1050 ft.
Range 1800 miles

Cosy Classic
Engine: Lycoming O-320, 160 hp.
HP range: 150-160.
Speed max: 225 mph.
Cruise: 187 mph.
Range: 1000 sm.
Stall: 67 mph.
ROC: 1500 fpm.
Take-off dist: 1480 ft.
Landing dist: 1640 ft.
Service ceiling: 20,000 ft.
Fuel cap: 52 USG.
Weight empty: 960 lbs.
Gross: 1750 lbs.
Height: 7.8 ft.
Length: 17.7 ft.
Wing span: 26.33 ft.
Wing area: 95.6 sq.ft.
Seats: 3.
Landing gear: retractable nose wheel.

Cosy III

Speed max: 225mph.
Cruise: 190 mph.
Range: 1000 sm.
ROC: 2000 fpm.
Take-off dist: 1500 ft.
Landing dist: 1500 ft.
Service ceiling: 20,000 ft.
Engine: Lycoming O-320, 160 hp.
HP range: 150-160.
Fuel cap: 52 USG.
Weight empty: 960 lbs.
Gross: 1750 lbs.
Height: 7.8 ft.
Length: 17 ft.
Wing span: 26.1 ft.
Wing area: 95.6 sq.ft.
Seats: 3.
Landing gear: nose wheel.

Cozy Mark IV
Engine: Lycoming O-360 180 hp.
Wing Span: 28.1 ft
Wing area: 88.3 sq.ft
Canard Span: 12.6 ft
Canard Area: 14.7 sq.ft
Length: 16.9 ft
Height: 7.9 ft
Cabin W/H: 42/39in
Max. front seat: 400 lbs.
Empty wt: 1050 lbs.
Gross wt.: 2050 lb
Take-off solo/gross: 1200/1700 ft.
Climb solo/gross: 2000/1200 fpm
Cruise 75% 8000 ft: 220 mph
Cruise 40% 12000 ft: 185 mph
Max. range 75%: 1000 mi
Max. range 40%: 1300 mi.
Ceiling: 20,000+ ft.
Ldg.Dist.solo/gross 1000/1300 ft.

Cozy Mark IV

Engine: Lycoming O-360A, 180 hp.
HP range: 160-180.
Height: 7.9 ft.
Length: 16.9 ft.
Wing span: 28.1 ft.
Wing area: 88.3 sq.ft.
Speed max: 220 mph.
Cruise 75% 8000 ft: 220 mph.
Cruise 40% 12,000 ft: 185 mph.
Range 75%: 1000 sm.
Range 40%: 1300 sm.
ROC SL: 1200 fpm.
Take-off dist: 1700 ft.
Landing dist: 1200 ft.
Service ceiling: 20,000 ft.
Fuel cap: 52 USG.
Weight empty: 1050 lbs.
Gross: 2050 lbs.
Seats: 4.
Cabin width: 42 in
Cabin height: 39 in
Front seats max: 400 lb
Landing gear: retractable nose wheel.


Cozy / Mk.IV
Engine: Lycoming
Wing span: 8.56 m
Wing area: 9.41 sq.m
MAUW: 930 kg
Empty weight: 476 kg
Fuel capacity: 197 lt
Max speed: 354 kph
Cruise speed: 306 kph
Minimum speed: 108 kph
Climb rate: 10 m/s
Seats: 4
Plan price (1998): $500
Kit price (1998): $14,000




Copyright © 2023 all-aero. All Rights Reserved.
Joomla! is Free Software released under the GNU General Public License.
slot gacor
rtp slot