Today's Message Index:
----------------------
1. 10:37 AM - Re: rotax 912UL (dcsfoto)
2. 11:07 AM - Re: rotax 912UL (fox5flyer)
3. 12:36 PM - Re: Re: rotax 912UL (Michel Verheughe)
4. 02:20 PM - Re: Re: rotax 912UL (Lynn Matteson)
5. 02:43 PM - Re: Re: rotax 912UL (Rexinator)
6. 06:57 PM - Luggage Pod : For Sale (LarryM)
7. 08:02 PM - Re: Re: rotax 912UL (Guy Buchanan)
Message 1
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on my model 3 it was set at 5000 rpm and I had good climb and to much cruse speed.
now set at 5400 ( static) and cruse is down but climb is great.
David Model 3 and 7
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=165422#165422
Message 2
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How can one have "too much cruise speed" ? :-)
Deke
do not archive
----- Original Message -----
From: "dcsfoto" <david@kelm.com>
Sent: Thursday, February 21, 2008 1:34 PM
Subject: Kitfox-List: Re: rotax 912UL
>
> on my model 3 it was set at 5000 rpm and I had good climb and to much
> cruse speed. now set at 5400 ( static) and cruse is down but climb is
> great.
>
> David Model 3 and 7
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=165422#165422
>
>
>
Message 3
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> From: fox5flyer [fox5flyer@idealwifi.net]
> How can one have "too much cruise speed" ? :-)
Good question, Deke. Compared to some of the other members of this list, I have
very little experience; I started flying five years ago and have about 350 hours
on my Kitfox.
>From what I understand, I can fly a little bit faster than 100 MPH, my Vne, without
much risk. But when it gets a bit turbulent - and in the summer, it's more
the rule than the exception - the needle moves fast in all directions. The
'book' says that in turbulent conditions, one should fly under Va, the manoeuvre
speed. For me that's 70 MPH. So, when it gets choppy, I pull the throttle.
Now, what is 'turbulent?' I certainly don't feel like a daredevil; rather a sissy.
Better safe than sorry. So, I fly at an average cruise speed of about 85
MPH.
Cheers,
Michel Verheughe
Norway
Kitfox 3 - Jabiru 2200
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Message 4
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Only if you're a Sport Pilot.... : )
Or if you're Michel. : )
Lynn
do not archive
On Feb 21, 2008, at 2:02 PM, fox5flyer wrote:
> <fox5flyer@idealwifi.net>
>
> How can one have "too much cruise speed" ? :-)
> Deke
>
> do not archive
>
> ----- Original Message ----- From: "dcsfoto" <david@kelm.com>
> To: <kitfox-list@matronics.com>
> Sent: Thursday, February 21, 2008 1:34 PM
> Subject: Kitfox-List: Re: rotax 912UL
>
>
>>
>> on my model 3 it was set at 5000 rpm and I had good climb and to
>> much cruse speed. now set at 5400 ( static) and cruse is down but
>> climb is great.
>>
>> David Model 3 and 7
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=165422#165422
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 5
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Seriously, it seems possible to clean up the drag on some of our kit
planes enough that one could exceed Vne in a high cruise.
Rexinator =-O
Colorado
do not archive
Lynn Matteson wrote:
>
> Only if you're a Sport Pilot.... : )
>
> Or if you're Michel. : )
>
> Lynn
> do not archive
>
> On Feb 21, 2008, at 2:02 PM, fox5flyer wrote:
>
>> <fox5flyer@idealwifi.net>
>>
>> How can one have "too much cruise speed" ? :-)
>> Deke
>>
>> do not archive
>>
>> ----- Original Message ----- From: "dcsfoto" <david@kelm.com>
>> To: <kitfox-list@matronics.com>
>> Sent: Thursday, February 21, 2008 1:34 PM
>> Subject: Kitfox-List: Re: rotax 912UL
>>
>>
>>>
>>> on my model 3 it was set at 5000 rpm and I had good climb and to
>>> much cruse speed. now set at 5400 ( static) and cruse is down but
>>> climb is great.
>>>
>>> David Model 3 and 7
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=165422#165422
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>
>
--
Rex Hefferan
SE Colorado / K-II / 582-C / still waiting repairs
Message 6
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| Subject: | Luggage Pod : For Sale |
John Nash (406-591-2942) has a custom made luggage pod for sale for $800. It is
designed to fit the Grove gear. You can call him at the number above. He lives
in MT.
larry
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=165508#165508
Attachments:
http://forums.matronics.com//files/john_nash_kitfox_717.jpg
Message 7
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At 12:29 PM 2/21/2008, you wrote:
> From what I understand, I can fly a little bit faster than 100 MPH,
> my Vne, without much risk.
Time to kick the hornets nest.
Theoretically, and yes, I mean theoretically, flying around
at Vne is a VERY dangerous thing to do. It means you have 0 (zero)
available gust factor and quite literally any wind shear, gust,
whatever, will rip your wings off. Vno, which for my IV is 99mph,
(Vne = 120mph,) is the top of the green arc, where you can fly around
in most turbulence without much worry. Vno accommodates a 3-sigma
gust, (99.7% unlikely,) without damage to the airframe. As you
increase speed from Vno to Vne you whittle at the available gust
factor until at Vne it reaches zero.
Now is this true for Kitfoxes? It seems hardly likely since
nearly everyone I know cruises their IV at well over 100mph, and
there are some that cruise over Vne. (I think I was told the world
record cruise for a IV was 132mph, though that might have been top
speed.) Certainly no one has ever shed a wing or even experienced
flutter, so it appears that our Vne is highly conjectural. If that's
the case then who knows what Vno really is, or Va for that matter
since it can be assumed that the structure can stand a lot more than
3.8g's. However rest assured that when you fly around at or above
Vne, YOU ARE A TEST PILOT. (Michel, I admire your courage.)
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.
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