PPRuNe Forums - View Single Post - Wooden vs. Metal Props
View Single Post
Old 27th Jan 2005, 12:54
  #10 (permalink)  
djpil
 
Join Date: May 2002
Location: Melbourne, Australia
Posts: 1,165
Received 16 Likes on 12 Posts
Performance

A rough performance comparison on a 200 hp aerobatic machine:

1. First prop was a wooden Sensenich. Static RPM only about 2250. Max speed S&L about 138 kts. Made lots of noise in a dive. Seemed as if it twisted and became finer pitch at higher airspeeds.

2. Second was a Hoffman. Static RPM about 2350. Max speed S&L about 147 kts. Nice all round.

3. Third was a metal Sensenich. Even more static RPM. Max speed S&L 155 kts at about 3050 RPM. Best performance all round.

(figures subject to change when I wake up and refer to my notes)
djpil is offline