Flitzer Sport Flying Association

Flitzer Variants

These variants are now flying.
The basic plans set covers the Z-21 and Z-21A.
To purchase plans, e-mail: Lynn Williams

Z-1
Prototype Flitzer
Z-21
"Standard" Flitzer
6% larger horizontal stab area than Z-1
22-inch wide cockpit
Z-21A
Same as Z-21 except
24-inch wide cockpit
Specifications
Wing Span: 18'-0"
Wing Area: 97 sq.ft.
Length: 14'-9"
Tare Weight: 480 lbs
Gross Weight: 750 lbs
Engine: 50 to 80 hp (data for 1834 cc VW)
Fuel Capacity: 10.6 USG
Cockpit Width: 22" (24" for Z-21A)
Wing Loading: 7.7 lb/sq.ft.
Power Loading: 12.0 lb/hp (@60hp)
Performance
(all data verified by flight test)
Top Speed: 95 mph IAS
Cruise Speed: 86 mph IAS
Stall Speed: 42 mph IAS
Range: 300 miles
Rate of Climb: 720 ft/min (@ 1500 ft AMSL - STP)
Take Off Distance: 400 ft
Take Off over 50' Obstacle: 900 ft
Landing Distance: 400 ft
Service Ceiling: 12,000+ ft.
Flitzer "Round Tail"

One popular "field modification" is the use of the round Stummelflitzer vertical stabilizer on the Z-21/Z-21A.
This version of the Z-21 requires two additional plan sheets which are relatively cheap, only £5 GBP per A1 sheet.

Computer 'magic' provides side-by-side comparison of straight vs round tails on the prototype Z-1.

Future Flitzers

These variants are still under development.
Construction of Stummelflitzer, Schwalbe, Falke, Goblin, and Meteor variants
require the basic plans set along with additional plans sheets, purchased separately.

Z-1R StummelFlitzer
Aerobatic
Rotec R2800 Powered
First two examples nearing completion
(as of June 2012)
Provisional Plans Available		 Z-1S StummelFlitzer
Aerobatic
Prototype Under Construction
Provisional Plans Available		 Z-2 Schwalbe
(Swallow)
Two-Seater
Floats Optional
Prototype Under Construction
Projected Specifications
Wing Span: 17'-6"
Wing Area: 96 sq.ft.
Length: 15'
Tare Weight: 500 lbs
Gross Weight (Utility): 807 lbs
Gross Weight (Aerobatic): 735 lbs
Engine: 80 to 110 hp (data for 2130cc VW)
Fuel Capacity: 10.6 USG
Cockpit Width: 22"
Wing Loading (Utility): 8.4 lb/sq.ft.
Wing Loading (Aerobatic): 7.7 lb/sq.ft.
Power Loading (Utility): 10.0 lb/hp (@80hp)
Power Loading (Aerobatic): 9.2 lb/hp
Design Factor (Utility): +4.4/-2.2 G's
Design Factor (Aerobatic): +6.0/-3.0 G's

Z-2 with optional floats fitted
Projected Performance
Top Speed: 116 mph IAS
Cruise Speed: 105 mph IAS
Stall Speed: 49 mph IAS
Range: 250 miles
Rate of Climb: TBD
Take Off Distance: TBD
Take Off over 50' Obstacle: TBD
Landing Distance: TBD
Service Ceiling: 12,000+ ft.

Z-3 Falke
(Falcon)
Several Under Construction
Z-1M Meteor Speedwing
Roundtail Variant With Race Wing
Under Development
 Z-4 Sperber (Sparrowhawk)
Microlight Version
Two Under Construction
Projected Specifications
Wing Span Top: 19' 4"
Wing Span Bottom: 18' 5.5"
Length: 15' 7"
Chord Top: 39"
Chord Bottom: 36"
Empty Weight: 620-720lbs
Weight (utility): max loaded 1100lbs
Weight (aerobatic): max loaded 1000lbs
Fuel capacity (fuse): 12USG
Fuel capacity (wing aux tanks): 2x6USG
Endurance: 6 hours
Range: 500+ miles
Engine: Continental A & C series,O-200,
Corvair, Rotec R2800 or R3600

Cleveland 200
Under Development
Flitzer Speedwing Special
Under Development
 F.2 Tiger/F.5 Tiger
Prototype Under Construction
Projected Specifications
Wing Span Top: 19' 4"
Wing Span Bottom: 18' 5.5"
Length: 15' 7"
Chord Top: 39"
Chord Bottom: 36"
Empty Weight: 620-720lbs
Weight (utility): max loaded 1100lbs
Weight (aerobatic): max loaded 1000lbs
Fuel capacity (fuse): 12USG
Fuel capacity (wing aux tanks): 2x6USG
Endurance: 6 hours
Range: 500+ miles
Engine: Continental A & C series,O-200,
Corvair, Rotec R2800 or R3600