Use of an Aeromatic propeller!

Paul Hamilton is one of the first persons to become a DPE (Designated Pilot Examiner) for sport pilots. As a full-time author and sport pilot expert, he writes books and produces DVD's for Aviation Supplies and Academics (ASA). Now Paul has graciously agreed to answer your questions here. Thanks Paul! For more information about Paul, please visit www.Paul-Hamilton.com and www.Sport-Pilot-Training.com.

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Jeff Tipton
Posts: 61
Joined: Sun Nov 26, 2006 5:23 pm
Location: Dickson, TN

Use of an Aeromatic propeller!

Post by Jeff Tipton »

We have a Ercoupe 415C that meets the LSA criteria except there is a question regarding the propeller.

The aircraft is equipped with an Aeromatic propeller which will go to a flat pitch on takeoff for higher RPM and will go to a course pitch for cruise when the airspeed increases and the throttle is reduced.

This propeller has only two adjustments which must be made on the ground and can not be changed in flight. This propeller is type certificated for this aircraft.

How will this propeller effect this aircrafts use as an LSA?
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CharlieTango
Posts: 1000
Joined: Sat Jun 10, 2006 10:04 am
Location: Mammoth Lakes, California

Post by CharlieTango »

jeff,

logic says your good to go. ground adjustable is permissible.

the prop may be unconventional but it satisfies a higher standard then light sport without adding the complexity ( in flight adjustments )

no research, worthless opinion off of the top of my head
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Paul Hamilton
Posts: 329
Joined: Mon May 21, 2007 2:42 pm
Location: Reno/Tahoe Nevada

Post by Paul Hamilton »

from the specific regulation for a LSA
"(7) A fixed or ground-adjustable propeller if a powered aircraft other than a powered glider."

my opinion is the same. Good to go
Paul is a Sport Pilot CFI/DPE and the expert for ASA who writes the books and produces the DVD's for all pilots flying light sport aircraft.
See www.SportAviationCenter.com www.Sport-Pilot-Training.com and www.BeASportPilot.com to Paul's websites
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