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Test Flight with Standard Hoffmann prop but 1400cc motor printer friendly version
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Bob Grimstead
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Location: Perth, Western Australia or West Sussex, England
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Posted Thursday, July 3, 2008 @ 11:06 AM  

Test flight on 21st August 2005
VH-HDO
maximum weight (390 kg)
1400cc engine
Standard Hoffmann 133/70 propeller 52.5 by 27.5.
OAT 18°C
Max static rpm 3,150
Take-off rpm = 3,200
Time from start of roll to 2,000 feet = 3:45
Time from start of roll to 3,000 feet = 5:14 = 573 fpm
Oil temp at end of climb 102°C (pre cooling mods)

Timed climb from 1,000 to 2,000 feet at 60 knots 1:36 = 625 fpm
Timed climb from 1,000 to 2,000 feet at 60 knots with wheel extended 2:20 = 429 fpm
Max IAS @ 3,000 feet = 103 kt @ 3,800 rpm (0.793 Mach)

Yours, Bob

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