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Thanks, Steve.
Barry
----- Original Message -----
Sent: Monday, December 18, 2006 7:12
AM
Subject: [FlyRotary] Re: Ivo Magnum
Barry,
It’s
the same prop, just without the motor drive. I can add the motor to my prop to make
it in flight adjustable. Unless
they changed it, the price of the ground adjustable, adding the motor unit
later, was the same as buying it all up front.
Steve
Brooks
-----Original
Message-----
From: Rotary
motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Barry Gardner
Sent: Sunday, December 17, 2006 9:04
AM
To: Rotary motors in
aircraft
Subject: [FlyRotary]
Re: Ivo Magnum
Steve,
Buly,
Can I
ask a question about the IVO props? I understand that the variable pitch just
twists the end of the prop but does the ground adjustable twist the whole
blade? Or does it adjust the same way, just without the
motor?
Barry
Gardner
Wheaton,
IL
----- Original
Message -----
To: Rotary motors in aircraft
Sent: Sunday, December
17, 2006 7:44 AM
Subject: [FlyRotary] Re: Ivo
Magnum
Buly,
I'm also running the IVO, but
ground adjustable. I had enough weight back there without adding to it,
especially that far aft. Doesn't rule out adding it later
though.
On our pushers, the center of the prop isn't getting much (if
any) air anyways, so I'm not sure what the drag effect of the rather flat
center section of the prop will be on the Cozy.
I can definitely see
where it would add a lot of drag on a typical puller
configuration.
Steve Brooks
On 12/14/06, Bulent Aliev < atlasyts@bellsouth.net>
wrote:
I flew my CZ-IV at medium pitch (Ivo
Magnum electric 2 blade
68"diam.) and was cruising at 160 MPH with little
effort. There is
waay more pitch to go. The range is 40-105" of pitch. The
problem
with Ivo as I understand it, there is not enough pitch in the root
of
the blades, and the faster you go the the ineffective area of
the
blade spreads out from the center, since Ivo twists the
blades
starting from the tip. So, the root does not see too much
change.
That's only my uneducated opinion.
Buly
On Dec 14, 2006,
at 5:32 PM, david mccandless wrote:
>
Tracey/Bob/Anyone
> What was the problem over 150 mph? What
are you using now?
> Ref the IVO prop, can you give an opinion on
reliability, operation
> and any problems or worries. I would like to
fit one to my Europa
> for speed range 70 to 180 mph, probably on a 13b,
if the RB
> Aluminum Hsgs work out.
> BR, Dave McC
> On 14,
Dec , at 10:17 PM, Tracy Crook wrote:
>
>> I flew the Ivo
Magnum (high pitch version) for awhile on my -4
>> (ground adjustable
only) and tested it at near max pitch
>>
(~100"). Takeoff & climb was OK even though static
& climb RPM
>> was limited to only ~4000 rpm. Flight
performance will vary
>> greatly based on the aircraft & power to
weight ratio. The -4 is
>> an overpowered hot rod compared
to factory planes. The same setup
>> on a Cessna 172
might be marginal at best. Over all, the Ivo was
>> great
below 150 mph. Above that it sucked. Pusher
installations
>> seem to have better results with it (because it
blows? : > ) sorry...
>>
>> Tracy
>>> -----
Original Message -----
>>> From: Bob Tilley
>>> To:
Rotary motors in aircraft
>>> Sent: Wednesday, December 13, 2006
9:51 PM
>>> Subject: [FlyRotary] Ivo Magnum
>>>
>>> Folks,
>>>
>>> I had
a question concerning the electrically adjustable Ivo, If I
>>>
forget to go to fine pitch when landing, what kind of
performance
>>> can
>>> I expect if I need to do a go
around? Just being cautious and
>>> wanting
>>> to
know beforehand. Is there anyone willing to own up to having
done
>>> it already? I'm going to be running a 180 hp 13b in a
Cozy MK IV.
>>>
>>>
Bob
>>>
>>> --
>>> Homepage: http://www.flyrotary.com/
>>>
Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
--
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