----- Message d'origine -----
Envoyé : 10 aoūt 04 14:20
Objet : [FlyRotary] Re: Better hurry
Ed
Hi Yvon
Had not heard from you in so
long, I was afraid you were no longer a Rotary Flier.
Ref Monster Prop. Most of us flying RV
series aircraft have been using a propeller that was around 68" in diameter
and 72" in pitch or 68x72. When Tracy Crook changed his gear box ratio
from 2.17:1 to 2.85:1 the torque at the prop end of the gear box was
considerably increase but turned slower. Tracy figured that turning
slower meant a larger diameter prop was necessary to provide the same thrust
and then he decided that with that much more of a torque increase he could
also have more pitch. Therefore, he went from a 68x72 prop to a 74x88
prop, I am going to try a 76x88 or a propeller that is 8" longer than my
previous propeller and with 16" more pitch. Therefore the reference to a
Monster (LARGE) propeller.
Tracy reports tremendous increase in take off
acceleration and climb. He reported still having 1600 fpm climb at
10,000MSL!. If I can get 2000 fpm at sea level, I'll be happy with
it.
So several of us decided to following in his foot
steps.
Good to hear from you. How are things
going??
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
Sent: Tuesday, August 10, 2004 11:29
AM
Subject: [FlyRotary] Re: Better hurry
Ed
Gentlemen, What is a monster prop, please?
Yvon
----- Message d'origine -----
Envoyé : 10 aoūt 04 09:32
Objet : [FlyRotary] Re: Better hurry
Ed
Great to hear, Rusty. Looks like the
2.85 is going to get some additional data point soon.
Well, Laura, shipped my drive Friday, so
should be here today or tomorrow. Already have the monster prop, now
awaiting a new spinner for prop. Cleaning up my software for the EFI
fuel monitor, finished the self-calibration routine and now need to find
an LCD small enough to fit in a 2 1/4" instrument case and still readable
from across the cockpit.
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
Sent: Tuesday, August 10, 2004
12:41 AM
Subject: [FlyRotary] Better hurry
Ed
I just got the
tracking number for my monster prop today, and it should be here
Friday. Tracy's shipping my C drive tomorrow, and he shipped the
software updates today. Won't be long now :-)
Rusty