Designed by Neil Perdew, the 1931 Westbrook W-5 (ATC 2-444) was powered by a 90hp ACE Cirrus Mk III engine. The ATC were issued in 1933.

The W-5-B Sportster had an 85hp British Cirrus (2-455). Folding all-wood wings and selling for $2,650.

About five were built, and several partly constructed before the business failed in 1931.
NC9N c/n 501 destroyed in a 1931 crash
N853W c/n 502
NC966V c/n 503 lost in a 1938 accident
NC92V c/n 504
possibly c/n 505 unlicensed one

The design was planned for revival in 1939 as the Allied H-28 Sport Trainer, but apparently no planes were built.

W-5
Engine: 90hp ACE Cirrus Mk III
Wingspan: 32’0″
Length: 23’6″
Useful load: 500 lb
Max speed: 125 mph
Cruise speed: 100 mph
Stall: 40 mph
Range: 400 mi
Seats: 2

W-5-B Sportster
Engine: 85hp British Cirrus
Seats: 2

The 1935 Model A or Experimental two place cabin monoplane NX15390 c/n 101 was built by C M Matson & Harlan Werkheiser of Bloomsburg PA. First flying in June 1935 the CAA inspector commented he suspected the X-license, applied for on 10/15/35, “… was to avoid a state law.”

It was sold on and the registration cancelled on 28 July 1948.

Engine: 100hp Cirrus MkIII
Seats: 2

In 1935 Burdette Star of San Luis Obispo CA., built the single place open cockpit monoplane Arrowplane, registered NX14977, and powered by a 90hp LeBlond 5F.