I'm swinging an 82 x 42 Borer prop. 700 to 900fpm I can probably do when the temps aren't 115 F. I don't believe the 90Kts at 2300.
So far I don't think changing back to full flaperons is worth the effort.
Andrew E Burr XIV
Vertical performance LLc
Po Box 213
Cassville MO 65625
VPHelo, LLc has paid for the design and engineering for every component and holds ownership of all intellectual property for each component.
--- On Mon, 7/19/10,
jbcressman@aol.com <
jbcressman@aol.com> wrote:
From:
jbcressman@aol.com <
jbcressman@aol.com>
Subject: Re: [rebel-builders] Flaps/Flapperons
To:
rebel-builders@dcsol.com
Date: Monday, July 19, 2010, 2:58 PM
Andrew...I have the flaperons on my Rebel with 1800 amphibs and a Sensenich 74 x 53 on an 0-320. I'm off and
climbing in 250' at 700-900 fpm. Cruise indicated at 3000' asl at 2300 rpm trimmed up with 6 degrees negative and 7.8 gpm
is 90 kts. I'm with Bob, I love the flaperons! Bob Cressman 331R C-GRBC
---- Original Message ----
From: Walter Klatt <
Walter.Klatt@shaw.ca>
To:
rebel-builders@dcsol.com
Sent: Mon, Jul 19, 2010 10:41 am
Subject: RE: [rebel-builders] Flaps/Flapperons
What prop do you have, Andrew?
Walter
-----Original Message-----
From:
mike.davis@dcsol.com [mailto:
mike.davis@dcsol.com] On Behalf Of Andrew
Burr
Sent: Sunday, July 18, 2010 4:09 PM
To:
rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Flaps/Flapperons --- was 254R first flights
I have the separate flap mod and I like it . I have no problems landing
short and I have the negative flap. My ailerons droop with the flaps. I
flew an Avid on Hamilton floats with Flapperons and didn't care for it. I
wasn't sure at the time if it was the floats or the flapperons but I didn't
like how it rolled in to a turn. It seemed you had to push it over. I have
my rebel on amphibs right now and it lands so slow I have no problems
getting stopped in 500 ft. I really like how stable the plane flys it has a
great roll rate and very easy to trim hands off. On the amphibs I can get it
off the ground in 250 ft as soon as it hits 50 it is off the ground about a
500fpm climb is standard but it is really hot right now here in Missouri
(115F). My airspeed trues out at 85 at 2450 rpm cruise flight with the
floats gear up, with the gear down 78 . I have the 0-320. I really love the
way this little plane handles she is a sweet hart. My airport is Est West so
I'm always landing with a cross wind. Like I said I'm on floats not wheels
so landing in a cross wind on a 1000ft strip is not a issue for me
I was thinking of building a Moose while I fly my Rebel. But with the lack
of parts support I'm leaning towards a Bear Hawk now.
Andrew E Burr XIV
Vertical performance LLc
Po Box 213
Cassville MO 65625
VPHelo, LLc has paid for the design and engineering for every component and
holds ownership of all intellectual property for each component.
--- On Sun, 7/18/10, Bill Maxwell <
wrmaxwell@bigpond.com> wrote:
From: Bill Maxwell <
wrmaxwell@bigpond.com>
Subject: Re: [rebel-builders] Flaps/Flapperons --- was 254R first flights
To:
rebel-builders@dcsol.com
Date: Sunday, July 18, 2010, 10:33 PM
Thanks for that input Bob. I'll certainly file that away for future
reference.
I bought the separate flaps option with my kit, I guess only because
that had been my previous experience base, whereas flapperons were
something I had never experienced. Still plenty of time in which to
switch back to flapperons though and that is where my thinking has been
tending over the past couple of years. Your comments reinforce that view.
I certainly want the "L" back in STOL down here in Tasmania
Bill
Bob Patterson wrote:
Hi Bill !
Yes - I would do the same if stuck with a flaps-only Rebel !
I've flown a few ... one builder told me his was a STO --
no "L" , (not a STOL) since he found it hard to land short ! :-)
Fortunately, there are very few of those --- and a good thing too....
you end up with half the flap and half the aileron - not good for
landing, or crosswinds ! :-( Most who try that setup switch
back to flapperons quickly - I certainly would !
I use full flapperon because the design is to change the
shape of the whole airfoil, as high performance gliders
have been doing for many years. I love the Rebel's roll rate ! :-)
2 notches of negative flapperon really helps the cruise too...
you don't get the same gain with just flaps - if you even have
negative.
One thing I often see is the dangerous practice of having
the separate flaps droop more than the factory defined
maximum of 18 degrees (same as for flapperons). Anything
more puts excessive load on the 2 flap(peron) support arms -
they might rip off !!! You can see this excess flap on some
YouTube videos of the float Rebels in Newfoundland - they are
the only ones still doing this regularly, at their own peril ...
The Elite has much sturdier flaps, AND --> THREE supports,
so can have more deflection. Still could use more aileron -
Just MHO ... ;-)
-----------------------------------------------------------------
List archives located at:
https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe:
rebel-builders-unsubscribe@dcsol.com
List administrator:
mike.davis@dcsol.com
-----------------------------------------------------------------
-----------------------------------------------------------------
List archives located at:
https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe:
rebel-builders-unsubscribe@dcsol.com
List administrator:
mike.davis@dcsol.com
-----------------------------------------------------------------
-----------------------------------------------------------------
List archives located at:
https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe:
rebel-builders-unsubscribe@dcsol.com
List administrator:
mike.davis@dcsol.com
-----------------------------------------------------------------
-----------------------------------------------------------------
List archives located at:
https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe:
rebel-builders-unsubscribe@dcsol.com
List administrator:
mike.davis@dcsol.com
-----------------------------------------------------------------
-----------------------------------------------------------------
List archives located at:
https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe:
rebel-builders-unsubscribe@dcsol.com
List administrator:
mike.davis@dcsol.com
-----------------------------------------------------------------