> WOOD PROP SIZE
Posted: Wed May 20, 1998 11:12 am
Original Posted By: oil can
Thanks for the tip Stevee. I just joined the localDallas EEA Chapter and will check with someof the guys.Have a good and safe Memorial Day weekend.MikeDallas>>>-----Original Message----->Michael King>Sent: Tuesday, May 19, 1998 1:53 PM>To: Pietenpol Discussion>Subject: WOOD PROP SIZE>>>Hey gang,>>What size prop would give the the take and climb for my>Grega Air Camper with a Continental A-80 engine?>Presently flying with a metal 69-39 that gives a cruise of>about 85 mph but poor take off and climb performance>that is more important to me than cruise speed.>>Thanks for the input from the pros.>>Mike>GN-1 121SP>>Mike,>>Not a pro on A-80's or wood props but, you may try and get the book "Carving>your own Propeller" from EAA. In it there is a chart that might help you>answer your question. It charts torque, desired airspeed, length, planform>etc. Seems that having your current prop repitched to a climb prop would be>easiest. A wood prop is going to weight less as well, and will figure into>your W/B too.>>Good Luck,>>stevee>>Michael KingThe Comedy WireDallas, Texashttp://www.comedy-wire.com214-905-9299 Phone214-905-1438 Fax________________________________________________________________________________
Thanks for the tip Stevee. I just joined the localDallas EEA Chapter and will check with someof the guys.Have a good and safe Memorial Day weekend.MikeDallas>>>-----Original Message----->Michael King>Sent: Tuesday, May 19, 1998 1:53 PM>To: Pietenpol Discussion>Subject: WOOD PROP SIZE>>>Hey gang,>>What size prop would give the the take and climb for my>Grega Air Camper with a Continental A-80 engine?>Presently flying with a metal 69-39 that gives a cruise of>about 85 mph but poor take off and climb performance>that is more important to me than cruise speed.>>Thanks for the input from the pros.>>Mike>GN-1 121SP>>Mike,>>Not a pro on A-80's or wood props but, you may try and get the book "Carving>your own Propeller" from EAA. In it there is a chart that might help you>answer your question. It charts torque, desired airspeed, length, planform>etc. Seems that having your current prop repitched to a climb prop would be>easiest. A wood prop is going to weight less as well, and will figure into>your W/B too.>>Good Luck,>>stevee>>Michael KingThe Comedy WireDallas, Texashttp://www.comedy-wire.com214-905-9299 Phone214-905-1438 Fax________________________________________________________________________________