Bolly Optima Series Information: All Series 2,3 & 4 blades are sold as digital weight matched component sets, although the user is responsibile for the
final balance of the assembled unit. Our Digital Weight number takes into account the blade weight and C of G. All BOS components are manufactured
with appropriate documentation. Please note we always quote our prop pitch as per actual geometrical pitch at it's most common size. The common practice
of quoting blade angles is useless information,unless giving the radius and a scientific calculator at the same time.

PLEASE NOTE : Whilst it is our job to supply our customers the best performing propellers for as many applications as possible, it is the aircraft owners
responsibility to determine the suitability and lefality of the propeller they choose to use , It is an accepted industry standards that propellers are not returnable/
refundable,especially once they have been fitted.

In development : Bolly in Flight Adjustable Propellers. We have been testing since lat 2005 and displayed our first pre-production version at the annual
Narromine Fly in Australia in 2006. For more details, see the IFA page.