No, not necessarily. SprintAero have created a great range of variable-pitch propellers for light aircraft that either weight less or the same as a conventional prop, but deliver increased power and efficiency.
NEW PRODUCT ALERT: We have formed a supply relationship with the great people at Powerfin Props and now have full access to their well designed and beautifully made carbon fibre blades. This not only broadens our capabilities, it also lowers our weights even further! On average we reduce the blade /ferrule combination by 500 grams per blade assembly.
WEIGHT REDUCTION ALERT: the latest updates to the hubs are undergoing FEA at this time ( Finite Element Analysis – Computer based stress testing ) with an independent engineering analysis company to verify our changes for lower weight, improved finish and easier machining. As an example; the hub alone of the Sp30a -three blade unit, has been reduced by over 600 grams while maintaining full strength and improving fatigue properties
Comparisons with other brand products based on published information
|Brand and Prop||Weight incl spinner||Difference|
|Hartzell HC-C2YK-1BF||59 lbs||Reference Weight for comparison|
|Whirlwind 200C||47 lbs||12 Lbs less than the Hartzell|
|Whirlwind 200RV||41 lbs||18 Lbs less than the Hartzell|
|MTV 15B-183-402||54 lbs||5 Lbs less than the Hartzell|
|MTV 15B/183 – 50||44 lbs||15 Lbs less than the Hartzell|
|MTV 20B / 183 -109||48 lbs||11 Lbs less than the Hartzell|
|SprintAero SP20a||22 lbs||37 Lbs less than the Hartzell|
|SprintAero SP30a||28 lbs||31 Lbs less than the Hartzell|