Engines – Power

Squadron Aviation SE5a Model 13 / Loehle SE-5A

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Squadron Aviation produce a variety of replicas and most of the specs are very similar. All three of the aircraft, designed by Lew Parsley, are produced at the company’s Columbus, Ohio plant and are structurally the same. Wing panels are pre-assembled at the factory from stamped aluminium ribs and aluminium tubing, as is the precisely jigged aluminium tubing fuselage and tail feathers. The kit-builder is faced with assembly (all critical holes are drilled), rigging (accomplished with a simple jig concept detailed by the factory) and traditional dope and fabric covering. The external styling to create each replica is obtained with the use of a plastic pre-moulded and coloured cowling for the three individual ultralights. Flight perform¬ances are very good with a take-off roll of 22 metres the standard. A very comprehensive kit was available which includes everything, right down to the dope finish of the squadron of your choice. Centre mounted joy stick, rudder pedals, tailwheel or skid.

Built by Squadron Aviation before manufacture and marketing were acquired by Loehle. Loehle shipped kits pre-built to covering stage. LSA approved.

Empty wt: 253 lbs
Wing span: 24 ft
Wing area: 168 sq.ft
Height: 6’4”
Length: 16 ft
Fuel cap; 5 USG
Construction: Aluminium, Dacron
Engine: Cuyuna ULII-02 (429 cc) 35 hp
Prop: 183cm
Static thrust: 300+ lbs
Max wt: 504 lbs
Max pilot wt: 225 lbs
Stall: 22 mph
Econ cruise speed: 45 kts
Max speed: 63 mph
Vne: 75 mph
Climb rate: 1000 fpm @ 45 mph
Design limit: +4, -2g
Glide ratio: 5.5-1
Wing loading: 3lbs/sq.ft
Power loading: 14.4 lbs/hp
Take-off distance: 75 ft
Landing distance: 100 ft

Squadron Aviation Fokker D.VII / Loehle Fokker D-VII

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Squadron Aviation produce a variety of replicas and most of the specs are very similar. All three of the aircraft, designed by Lew Parsley, are produced at the company’s Columbus, Ohio plant and are structurally the same. Wing panels are pre-assembled at the factory from stamped aluminium ribs and aluminium tubing, as is the precisely jigged aluminium tubing fuselage and tail feathers. The kit-builder is faced with assembly (all critical holes are drilled), rigging (accomplished with a simple jig concept detailed by the factory) and traditional dope and fabric covering. The external styling to create each replica is obtained with the use of a plastic pre-moulded and coloured cowling for the three individual ultralights. Flight performances are very good with a take-off roll of 22 metres the standard. A very comprehensive kit was available which includes everything, right down to the dope finish of the squadron of your choice.

The Fokker was part of the Squadron Aviation purchase by Loehle Aviation and kits have been marketed by them since.

Max gross wt: 505 lbs
Max pilot wt: 225 lbs
Empty weight: 250 lbs
Fuel capacity: 3.6 lbs
Climb rate: 1000+ fpm
Power off stall: 22 kts
Wing loading (225 lbs pilot): 3.0 lbs/sq.ft
Power loading (170 lbs pilot): 12.8 lbs/hp
Take-off distance: 75 ft
Landing distance: 100 ft
Glide ratio: 5.5:1
Vne: 60 kts
Cruise speed: 50 kts
G loading: +4 / -2
Engine: Cuyuna UL II-02
Wing spans average: 24.5 ft

Spring Sprint WS.202

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Landing gear can be changed from nose to tail wheel in one hour. Engine options include VW or O-200.

Engine: Subaru EA81, 118 hp
HP range: 65-125
Height: 6.7 ft
Length: 19.5 ft
Wing span: 27 ft
Wing area: 130 sq.ft
Empty weight: 650 lb
Gross weight: 1130 lb
Fuel capacity: 12 USG
Top speed: 115 mph
Cruise: 110 mph
Stall: 350 mph
Range: 45 sm
Rate of climb: 600 fpm
Takeoff dist: 500 ft
Landing dist: 500 ft
Service ceiling: 10,000 ft
Seats: 1
Landing gear: nose or tail wheel

Spratt Control wing

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Dr G A Spratt’s first powered airplane with pivoting wings was a single-place, open cockpit biplane, built in 1912, and powered by a 40hp Curtiss V-8 air-cooled engine.

The second controlwing was a single-place open cockpit high-wing monoplane built in 1934, powered by a 25hp Jacobs outboard motor modified to air cooling (now in EAA Museum), and registered N14763. With an empty weight of 180 lb, it was the first controlwing airplane to do any real flying.

The 1939 Controlwing further development of Spratt’s controllable-wing theory was a two place, open cockpit, mid-wing flying boat. A 65hp Lycoming pusher engine was mounted in the bow, driving a prop by a long shaft. The wing is mounted over a twin-tailed, boat-shaped fuselage.

The 1947 version, N3915A, had a 65hp Continental mounted aft of the cockpit. Spratt’s project continued well into the 1970s with several successful flying boats. Plans marketed to home-builders; 80 sets sold by 1982.

The 1973 Controlwing 105 N49888 was a two-place cabin, high-wing monoplane landplane with a 60ci Mercury marine engine. The span was 22’0″ and length 12’6″. Spratt’s continuance of design numbers from his days at Convair sometimes lead to confusion of this plane with Convair-Stinson 106 Skycoach.

The 1964 Controlwing 106 N910Z was a two-place, open cockpit high-wing monoplane flying boat.

Circa 1975 the Controlwing 107 was a two-place, open cockpit high-wing monoplane flying boat, powered by a modified 80hp Mercury marine engine. The span was 24’0″, length 17’0″, and useful load: 500 lb.

Seats: 2

Sport Performance Aviation Panther

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The Sport Performance Aviation LLC Panther is a versatile, mid-sized, single seat low wing Sport or LSA aerobatic airplane with quick fold wings. The Panther is designed for handling manners and gentleman aerobatics, combining looks, handling and critical build elements meant to keep the cost down.

The base kit was $15,995 and that includes pre-drilled aluminum wing skins, a steel fuselage structure that’s been fully welded and powder coated, the canopy and landing gear legs. The Panther is built around the Corvair six-cylinder engine and that helps keep costs down; however, other engines in the 80–160 hp range can be used. Powerplant options include Continental C-85 thru 0-200, Lycoming 0-235 thru 0-320 (Panther Sport), UL power, Jabiru 3300.

Two Panther versions were available: one with 93 square feet of wing for LSA compliance and one with a smaller, 85-square-foot wing for better performance. Total build cost was $28–50k.

Construction
6061 aluminum / flush blind rivets (solid optional)
4130 steel tube construction from seat back to firewall. All critical attachment points like Landing gear, wing pin, engine mount, 5 point harness, ballistic chute, rollover bar, control Hard points etc. will be welded in the fixture. This allows quick accurate construction of all Critical points.
Skinned in AL
Quick easy to build tail cone rivets/bolts on to the forward fuselage
Simple control surface design
Simple strong wing spar with only seven components per spar (plus bolts/rivets)

The Panther features
Quick (2 min or less) easy single person wing fold, no controls to disconnect
Fit in 18ftx7x7 space (trailer) when folded
Large cockpit with adjustable rudder pedals and seat back, room for big guys and a parachute
Forward (2cu ft) and rear baggage area
Pilot rollover protection
Ballistic chute capable
Bubble canopy replaceable by small windshield and skirt for open cockpit flying
excellent visibility

Panther
Engine: Corvair/3.0L, 100hp @ 3100 rpm
Propeller: Sensenich/Wood over Composite, 2-blade
Wingspan: 23 ft 6 in
Maximum gross weight: 1115 lb
Typical empty weight: 725 lb
Typical useful load: 425 lb
Fuel capacity: 27 gal
Full-fuel payload: 262 lb
Wing loading: 11.8 lb/sq. ft
Baggage capacity: 40 lb
Max speed: 170 mph
Cruise speed: 165 mph @8000ft
Stall speed (landing configuration): 46 mph
Stall speed (clean): 51 mph
Maximum rate of climb: 1500 fpm
Takeoff distance (to 50 ft agl): 1000 ft
Landing distance (from 50 ft agl): 1200 ft
Seats: 1
Cabin width: 28 in

Sport Flight International Astra

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Designed by Allistair Wilson and built in Bloomfield, Indiana, the Astra trike is built to exceed the Light Sport Aircraft standards. The Astra has wide comfortable seating and can be used for serious cross country flying or simply enjoying the scenery.

The Astra Trike is manufactured in the American Mid West and has been developed using British technology. Two engine options were available: the HKS 700E – 60 BHP – 2 cylinder – 4 stroke or the 4 cylinder- 4 stroke – Rotax 912. The Astra Trike has been designed and manufactured to comply with the requirements of BCAR Section S Issue 2, and the American Sportplane aircraft design category.

Many parts for the wing are manufactured by Sport Flight International, including the wing sail, storage bag, wing bag and packing set. Sport Flight International also manufacture the structural wing frame tubes for the Astra Trike. Bill Sherlock test flew the first complete Astra Trike at Shawnee airport, Bloomfield Indiana, on the 26th April 2005.

The Astra Trike is the product of years of research and development, bringing to America a world class trike, capable of effortless cross country flying, with the reliability of a four stroke engine at an affordable 2009 Price.

The Astra 912 is powered by the 80 hp Rotax 912 four cylinder four stroke engine, allowing the trike to cruise at 70 mph, and burn just over 3.0 gallons per hour. Maximum level speed is 80 mph, VNE is 90 mph. Stall speed occurs at 32 mph. Rate of climb 800-1100 feet per minute depending on load and density altitude. Take off run 180 – 250 feet depndent on load and dnsity altitude. Astra 15.6 m double surface wing. Composite front fairing with windshield, Instrument panel, and composite wheel pants.

Dual rear brakes with parking brake, Warp Drive composite 3-blade propeller, Polyurethane shock absorber suspension system, Fabric skirt, 11.5 gallon fuel tank, Rotax mechanical fuel pump system, Cast aluminum spoked wheels, Wide composite seat with folding backrest, Chrome Moly steel maingear, Rear seat nose-wheel steering. Dual stainless steel muffler system, Pod storage bag, 10-row oil cooler, all aluminum radiator.

Standard instrument fit on the Astra 912 are Airspeed Indicator, Sensitive Altimeter, Fuel gauge, Digital engine monitoring which includes dual CHT and quadruple EGT, Hour meter, Flight timer, Voltage, Oil temperature, Oil pressure, Tachometer and In-dash Compass. Available Options include: Ballistic Recovery System Parachute, Vertical Speed Indicator, Fuel computer, Lynx Radio antenna, Dual Strobe system, High intensity headlight, Complete Lynx system including, Helmets, Vizors, Headsets, Intercom (self or aircraft powered), Radio, PTT cable, Windshield extension, Gas lift strut to assist in lifting the wing during set-up and takedown.

The Astra HKS is powered by the 60 hp Japanese HKS twin cylinder four stroke engine. This allows the trike to cruise at 55 – 65 mph, while burning just over 2.2 gallons per hour. Maximum level speed is 75 mph, VNE is 90 mph. Stall speed occurs at 32 mph Rate of Climb is 400 – 800 feet per minute depending on flight loads and density altitude. Astra 15.6 m double surface wing Composite front fairing with windshield and Instrument panel, composite wheel pants.

Dual rear brakes with parking brake, composite 3-blade propeller with reinforced leading edge, Polyurethane shock absorber suspension, Fabric skirt, 11.5 gallon fuel tank, Electric and mechanical fuel pump system, Cast aluminum spoked wheels, Wide composite seat with folding backrest, Chrome Moly steel maingear, Rear seat nose-wheel steering. Standard instrument fit on the Astra HKS are Airspeed Indicator, Sensitive Altimeter, Fuel gauge, Dual CHT, Dual EGT, RPM , Hourmeter, Voltmeter and In Dash Compass. Available Options include: Digital engine monitoring with warning light for out of range engine parameters, Jet Hot coating on the Muffler, Ballistic Recovery System Parachute, Vertical Speed Indicator, Fuel computer, Lynx Radio antenna,Dual Strobe system, headlight, Complete Lynx system including, Helmets, vizor, headsets, intercom (self or aircraft powered), Radio, PTT cable, Windshield extension, Gas lift strut to assist in lifting the wing during set-up and takedown.

The Astra S2 is powered by the 100 hp Rotax 912S four cylinder four stroke engine. A reliable, efficient and powerful engine that allows the trike an effortless cruise anywhere between 55 and 100 mph, and burn just over 3.5 gallons per hour. Maximum level speed is 105 mph, VNE is 115 mph. Stall speed occurs at 38 mph. Rate of climb is normally between 1000 -1300 feet per minute depending on load and density altitude. Take off run is typically 300 – 450 feet again dependent on load and density altitude. Astra S2 10.6 m double surface wing Composite front fairing with extended two piece windshield and Instrument panel, composite Pylon fairing and stabiliser wheel pants. Electric trim, Dual rear brakes with parking brake, composite 3-blade propeller with reinforced leading edge and prop spinner, Polyurethane maingear shock absorber suspension, Fabric skirt, 11.5 gallon fuel tank, Rotax mechanical fuel pump system, Cast aluminum spoked wheels, Wide composite seat with folding backrest, Chrome Moly steel maingear, Rear seat nose-wheel steering. Standard instrument fit on the Astra S2 are Airspeed Indicator, Sensitive Altimeter, Fuel gauge, Digital engine monitoring which includes dual CHT and quadruple EGT, Hour meter, Flight timer, Voltage, Oil temperature, Oil pressure, Tachometer and In-dash Compass. Available Options include: Ballistic Recovery System Parachute, Vertical Speed Indicator, Fuel computer, Lynx Radio antenna, Dual Streamlined Strobe System, High intensity headlight, Complete Lynx system including, Helmets, Vizors, Headsets, Intercom (self or aircraft powered), Radio, PTT cable, Windshield extension, Gas lift strut to assist in lifting the wing during set-up and takedown. Instructor Training Bars.

The Astra 503 is powered by the 54 hp Rotax 503 two cylinder four stroke engine. It powers the trike to a cruise speed between 55 and 65 mph, burning just over 4 gallons per hour. Maximum level speed is 70 mph, VNE is 90 mph. Stall speed occurs at 32 mph. Rate of climb is normally 250 -700 feet per minute depending on load and density altitude. Take off run is typically 200- 400 feet again dependent on load and density altitude. Astra A1 15.6 m double surface wing Composite front fairing with extended two piece windshield and Instrument panel, and wheel pants. Dual rear brakes with parking brake, composite warp drive 3-blade propeller, Polyurethane maingear shock absorber suspension, Fabric skirt, 11.5 gallon fuel tank, Rotax mechanical fuel pump system, Cast aluminum spoked wheels, Wide composite seat with folding backrest, Chrome Moly steel maingear, Rear seat nose-wheel steering. Standard instrument fit on the Astra 503 are Airspeed Indicator, Fuel gauge, Digital Altimeter and VSI, digital engine monitoring which includes dual CHT and dual EGT, Hour meter, Flight timer, Voltage, Tachometer and In-dash Compass. Available Options include: Ballistic Recovery System Parachute, Analogue Altimeter and Vertical Speed Indicator, Lynx Radio antenna, Dual Strobe System, High intensity headlight, Complete Lynx system including, Helmets, Vizors, Headsets, Intercom (self or aircraft powered), Radio, PTT cable, Windshield extension, Gas lift strut to assist in lifting the wing during set-up and takedown. Instructor Training Bars.

The Astra 103 is powered by the Rotax 503 two cylinder two cycle engine. This allows the trike a cruise speed between 55 and 63 mph, and burn just over 4 gallons per hour. Maximum level speed is 63 mph, VNE is 90 mph. Stall speed occurs at 25 mph. Rate of climb is normally between 300 and 500 feet per minute depending on load and density altitude. Take off run is typically 300 – 450 feet, again dependent on load and density altitude. Astra 103 10.6 m double surface wing. Composite front fairing with windshield and Instrument panel, and stabiliser wheel pants., Wooden 2 -blade propeller with protected leading edge, Bungee maingear shock absorber suspension, Fabric skirt, 5 gallon fuel tank, Rotax mechanical fuel pump system, Cast Nylon wheels, Wide fabric seat, Chrome Moly steel maingear. Standard instrument fit on the Astra 103 are Airspeed Indicator, Digital Altimeter and VSI, engine monitoring which includes dual CHT and dual EGT, Hour meter, Flight timer, Voltage, Tachometer. Available Options include: Ballistic Recovery System Parachute, Lynx Radio Antenna, Dual Streamlined Strobe System, High intensity headlight, Complete Lynx system including, Helmet, Vizor, Headset, Radio, PTT cable, Windshield extension, Gas lift strut to assist in lifting the wing during set-up and takedown.