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The company was founded in 1936 by professor Max B. Harlow to build the Harlow PJC-2 a production version of the PJC-1. The aircraft had been designed and built as a class project at Pasadena Junior College. [1] Harlow had worked with Howard Hughes on the Hughes H-1 racer. Hughes in turn later backed Harlow's enterprise.
1940 Harlow PJC-2 on display at the EAA Aviation Museum The PJC-2 was an all-metal low-wing cantilever monoplane with conventional low-set tailplane and a retractable tailwheel landing gear . A tandem two-seat version intended as a military trainer was developed as the Harlow PC-5 .
The Harlow Aircraft Company in Alhambra, California, designed a version of the PJC-2 as a tandem two-seat training aircraft. [1] The PC-5 had a revised fuselage with dual controls. [ 1 ] The aircraft first flew in July 1939 but it failed to interest the United States Army Air Corps .
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An 8-second stereo convolution reverb requires about 35 billion calculations per second; Allen patented a technique to reduce the computation amount to about 400 million calculations per second. A digital organ that produces Compact Disc quality sound without convolution reverb would require only about 100,000 calculations per second for each ...
A 2nd FM sound carrier containing a second sound channel is transmitted at a frequency 242 kHz higher than the default FM sound carrier, and contains a 54.6875 kHz pilot tone to indicate whether the broadcast is mono, stereo or bilingual. This pilot tone is 50% amplitude-modulated with 117.5 Hz for stereo or 274.1 Hz for bilingual.
Pentalobe screw sizes include TS1 (also known as P2 or 0.8 mm, used on the iPhone 4 and subsequent models), TS4 (also known as P5 or 1.2 mm, used on the MacBook Air [since late 2010], the MacBook Pro with Retina Display and the 2015 MacBook) and TS5 (also known as P6 or 1.5 mm, used on the 2009 MacBook Pro battery).