AV8ER
Well Known Member
Looking for real world experience from those who have flown both of these props. I am not currently interested in other props manufacturers.
This build's YIO-360-M1B, 180hp RV-8's mission is acro and formation flight, neither of which I have experienced in an RV before.
This is what I have been told so far:
C2YR-1BFP/F7497
74 in. dia.
Aluminum 2-blade blended airfoil
(I)O-360/390 180-210hp
RV-6A, 7A, 8/8A, 14A
$9,200.00
Blended prop
- no yellow arc
- faster cruise
- cheaper
- limited service life as material is removed at overhauls. Once a station on the prop is outside the tolerance it turns to scrap.
- can use Van's composite spinner
- a well rounded prop for "total performance"
G2YR/N7605W-2X
74 in. dia.
Extended hub composite 2-blade
(I)O-360/390 180-210hp
RV-6A, 7A, 8/8A, 14A
$15,315.00
Composite 2-blade
- no yellow arc
- better climb
- gives up a few knots in cruise (2-3 knots slower, but what do you say?)
- lighter and smoother, have heard between 15 and 35 pounds? What is the real weight difference?
- possibly an indefinite life as material can be added to the prop at overhaul
- must use Hartzell polished alum spinner that costs $1,585 (roughly $1200ish more money than the Van's comp spinner)
- prop/spinner combo costs 75% more money to purchase once you include the more expensive Hartzell spinner
- better aerodynamic braking due to its wider cord
- better prop for acro
- better prop for formation as the improved aerodynamic braking is a real advantage
Summary:
The blended airfoil prop has well rounded performance but gives up some short takeoff, climb, and acro/formation performance for its higher cruise speed. The composite prop has shorter takeoff roll, better climb, better aerodynamic braking and is the preferred acro prop.
Now shoot holes in this with your real world experience. I am looking for the flying performance differences and not looking at the dollar to performance "better value" debate as if that was the case we would all have fixed pitch cruise props.
Additionally I know the blended airfoil prop can use a standard Van's cowl but can the composite prop?
This build's YIO-360-M1B, 180hp RV-8's mission is acro and formation flight, neither of which I have experienced in an RV before.
This is what I have been told so far:
C2YR-1BFP/F7497
74 in. dia.
Aluminum 2-blade blended airfoil
(I)O-360/390 180-210hp
RV-6A, 7A, 8/8A, 14A
$9,200.00
Blended prop
- no yellow arc
- faster cruise
- cheaper
- limited service life as material is removed at overhauls. Once a station on the prop is outside the tolerance it turns to scrap.
- can use Van's composite spinner
- a well rounded prop for "total performance"
G2YR/N7605W-2X
74 in. dia.
Extended hub composite 2-blade
(I)O-360/390 180-210hp
RV-6A, 7A, 8/8A, 14A
$15,315.00
Composite 2-blade
- no yellow arc
- better climb
- gives up a few knots in cruise (2-3 knots slower, but what do you say?)
- lighter and smoother, have heard between 15 and 35 pounds? What is the real weight difference?
- possibly an indefinite life as material can be added to the prop at overhaul
- must use Hartzell polished alum spinner that costs $1,585 (roughly $1200ish more money than the Van's comp spinner)
- prop/spinner combo costs 75% more money to purchase once you include the more expensive Hartzell spinner
- better aerodynamic braking due to its wider cord
- better prop for acro
- better prop for formation as the improved aerodynamic braking is a real advantage
Summary:
The blended airfoil prop has well rounded performance but gives up some short takeoff, climb, and acro/formation performance for its higher cruise speed. The composite prop has shorter takeoff roll, better climb, better aerodynamic braking and is the preferred acro prop.
Now shoot holes in this with your real world experience. I am looking for the flying performance differences and not looking at the dollar to performance "better value" debate as if that was the case we would all have fixed pitch cruise props.
Additionally I know the blended airfoil prop can use a standard Van's cowl but can the composite prop?
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