Government corporation established in 1973 to promote development of a Philippines aerospace industry. Aircraft manufacture was undertaken until 1982 by a subsidiary company, National Aero Manufacturing Corporation. Assembled 44 MBB BO 105 helicopters and 67 Britten-Norman Islanders. A four-seat utility high-wing monoplane powered by a 300 hp Textron Lycoming engine was designed. Assembled 24 SIAI-Marchetti S211 jet trainers, 18 SF.260TP turboprop trainers, and eight Lancair lightplanes. Became partner in Eurocopter Philippines to assemble Eurocopter helicopters from kits (plus sales and maintenance). Philippine Helicopter Services Inc subsidiary maintains BO 105s and MD 500s.
Aircraft
Phelps Monoplane #1 / Z-281
Eber H Van Valkenberg Aircraft Co began building a three seat monoplane with side-by-side seating in a rear cabin and a forward cockpit that could be open or enclosed. It was sold to Dr Leland E Phelps of Toledo c.1928, who rebuilt and expanded the plane as a four place cabin. Designed by Dimas Ybarra using parts, instruments, etc, of the first plane, they built a new fuselage and wing, and received the same registration of NX4919 c/n 281. The old wing was destroyed and he gave the old fuselage to the Toledo Aviation Club for use in class work. It was never flown when called the Van Valkenberg.
Licensed as Phelps Monoplane #1 and also seen as Phelps Z-281, the registration was canceled on 10 September 1930.
Van Valkenberg
Engine: Ryan-Siemens SH-13, 70hp
Wingspan: 38’7″
Length: 24’7″
Seats: 3
Phelps
Wingspan: 41’6″
Length: 27’3″
Seats: 4
Phelps, Dr Leland E
Toledo OH
USA
Airplane builder circa 1928.
Pheasant Aircraft Traveler

The H-10 Pheasant was followed in 1928 by the Traveler single-seat cabin, high-wing monoplane with a cantilever gull-wing.

Following testing of the prototype NX174N by pilot Steve Wittman, two more Pheasant Travelers were built. One of them was equipped with a four-cylinder Cirrus Hermes engine producing 90 hp.

In 1929, Traveler was shown at the Detroit Air Show. In the same year, Steve Wittman participated in various air races in it, although without much success.
Engine: 55hp modified Ford A
Wingspan: 31’0″
Length: 23’6″
Max speed: 100 mph
Cruise: 85 mph
Stall: 35 mph
Seats: 1
Pheasant Aircraft Pheasant

Pheasant Aircraft Company’s first product in 1927 was the H-10 Pheasant (ATC 36) three-seat commercial biplane with 90 hp Curtiss OX-5 engine.
Designed by Lee Briggs and Orville Hickman and priced at $2,375-2,650, eleven were built.
Operations were sold and moved north in 1928 after Briggs was killed in a flying accident.
Engine: 90hp Curtiss OX-5
Wingspan: 32’4″
Length: 23’6″
Useful load: 785 lb
Max speed: 100 mph
Cruise: 85 mph
Stall: 35 mph
Range: 450-500 mi
Seats: 3
Pheasant Aircraft Company
1927
Lee R Briggs Flying School
Memphis MO.
USA
1928
Reorganized by Adolf/Andre Bechaud Co as Pheasant Aircraft Co
Fond du Lac WI.
USA
Pheasant Aircraft Company’s first product in mid-1920s was Pheasant three-seat commercial biplane with 90 hp Curtiss OX-5 engine, followed by Traveler single-seat cabin monoplane.
1930: Absorbed by Dayton Aero & Engr Co.
Phase 3 Eclipse

Single seat single engined high wing mono¬plane with conventional three axis control. Wing has elliptical planform and tapering chord; inverted V tail. Pitch/yaw control by elevon; roll control by wing warping; control inputs through stick for pitch/roll and pedals for yaw. Cantilever wing; wing profile; double surface. Undercarriage has three wheels in tricycle formation; suspension on all wheels. Push right go right nosewheel steering connected to yaw control. No brakes. Aluminium tube framework, without pod. Engine mounted below wing driving pusher propeller.
Conceived by J Bruce Emmons, the Eclipse was one of the new releases at Sun ‘n’ Fun of March 1983 at Lakeland, Florida. The Eclipse is also the first rigid wing ultralight to use wing warping for roll control (with the possible exception of the British Ladybird, which is not yet in production). With the Eclipse, the accent has been put on flight stability. The strength of the airframe has not been neglected, this ultralight having been static tested to as much as ± 9 g, more than the requirements for a light aircraft to be classed in the aerobatic category. The wings can be placed parallel with the framework by removing three bolts; demounted like that the machine can be transported either on a trailer or a roof rack. All the pieces in the kit are delivered pre formed, cut and drilled. Sold for $5495 in 1983, the kit thus provided is claimed to need only 30 h for completion.
Engine: KFM 107, 25 hp at 6000 rpm
Propeller diameter and pitch 54×23 inch, 1.37×0.58m
V belt reduction, ratio 2.0/1
Max static thrust 175 lb, 79 kg
Power per unit area 0.22 hp/sq.ft, 2.4hp/sq.m
Fuel capacity 5.0 US gal, 4.2 Imp gal, 18.9 litre
Length overall 14.0 ft, 4.27 m
Height overall 5.0ft, 1.52m
Wing span 32.2ft, 9.80m
Chord at root 4.0 ft, 1.22 m
Dihedral 0 deg
Tailplane span 8.0 ft, 2.44 m
Total wing area 114 sq.ft, 10.6 sq.m
Wing aspect ratio 9.1/1
Wheel track 4.0 ft, 1.22 m
Wheelbase 6.0 ft, 1.83 m
Nose¬wheel diameter overall 11 inch, 27 cm
Main wheels diameter overall 11 inch, 27 cm
Empty weight 165 lb, 75kg
Max take off weight 465 lb, 211kg
Payload 300 lb, 136kg
Max wing loading 4.071b/sq.ft, 19.9kg/sq.m
Max power loading 18.6 lb/hp, 8.4kg/hp
Load factors +6.0, 6.0 design; +9.0, 9.0 ulti¬mate
Max level speed 63 mph, 103kph
Max cruising speed 55 mph. 88kph
Economic cruising speed 50mph. 80kph
Stalling speed 25mph, 40kph
Best glide ratio with power off 15/1 at 35mph. 56kph
Range at average cruising speed 150 mile, 241 km
Phantom Knight Aircraft A-150
The 1929 Phantom Knight Aircraft Co A-150 was a three-place, open cockpit biplane powered by a Hisso engine. Registered N12922 c/n 2, the gross weight was 2450 lb, and claimed top speed was 105 mph, cruise 90 mph, and stall 30 mph. The claimed range was 620 miles.
Phantom Knight Aircraft 1928 Biplane
During 1928 the Phantom Knight Aircraft Co built a three-place, open cockpit biplane powered by a 90hp Curtiss OX-5 engine. The aircraft was registered NX7927 c/n 1.
Phantom Knight Aircraft Co
Oak Park IL.
USA
Built two aircraft during 1928-9.