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Critiquing PVC Props | 22 comments (22 topical, editorial)

Re: Critiquing PVC Props (3.00 / 0) (#4)
by bob g on Sat Sep 13th, 2008 at 05:30:19 PM MST
(User Info)

don't look bad to me, but
they are pitched backwards
the root part of the blade should be pitched back instead of forward
in order for them to work properly.

unless i am missing something

bob g

Re: Critiquing PVC Props (3.00 / 0) (#6)
by ghurd on Sat Sep 13th, 2008 at 05:39:08 PM MST
(User Info)

Sorry Bob,
My trail edge remark was not aimed at you. We were typing at the same time.
I thought that too, but decided it was the camera angle.
Photo #5 shows the tip shadowed, but the leading edge with sunlight.
G-

[ Parent ]

Re: Critiquing PVC Props (3.00 / 0) (#7)
by bob g on Sat Sep 13th, 2008 at 11:09:53 PM MST
(User Info)

the root of the blades look for all the world to be pitched outward toward the wind
instead of pitched back downwind as they should be.

the mounting supports this conclusion, there is no angularity on the mounting ears/tabs.

i can see how they would turn in the wind no problem, but making power due to blade lift i cannot see how that is going to happen because the blades will turn backward.

thats how i see it :)

maybe tomorrow after i have had some sleep i will take another look at the pics, these old eyes are tired!

bob g

[ Parent ]

Re: Critiquing PVC Props (3.00 / 0) (#8)
by veewee77 on Sat Sep 13th, 2008 at 11:41:01 PM MST
(User Info)

Actually, they are pitched the correct way for PVC blades. It looks wrong, but it is actually correct. Those should fly pretty fast and should run fairly quiet. Smooth the leading and trailing edges for a bit more efficiency and a bit less noise. . .

Doug

[ Parent ]

Critiquing PVC Props | 22 comments (22 topical, 0 editorial)

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