Today's Message Index:
----------------------
1. 07:11 AM - Re: Mark 3 performance up high (james.vanlaak@gmail.com)
2. 12:31 PM - Firefly at High Altitude (Paul Littleton)
3. 05:03 PM - Re: Firefly at High Altitude (Robert Gillisse)
4. 06:13 PM - Re: Firefly at High Altitude (Beauford)
5. 09:39 PM - Re: Firefly at High Altitude (WhiskeyVictor36@aol.com)
Message 1
INDEX | Back to Main INDEX |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Mark 3 performance up high |
Thanks Boyd.
On Sat, Oct 5, 2013 at 9:07 PM, b young <byoungplumbing@gmail.com> wrote:
> several years back I took off from an airport at 6966 ft, going
> slightly uphill, and near max wt. and took around 2000 ft on a hot day
> density altitude somewhere near 8500 to 9000 ft. been long enough I don
=92t
> recall exactly. mk iii 912 ul
>
> also at monument valley,,, when only the upper end was paved.... seems
> like it was 700 ft of pavement.... and depending on temperature,, it
> took most of the pavement and a bit more if you had a passenger. it is
> near 5200 msl. and take off is slightly down hill. density altitude
> 7000 ft or there about... give or take 1000 ft.
>
> boyd young
> do not archive
>
> *From:* james.vanlaak@gmail.com
> *Sent:* Saturday, October 05, 2013 11:28 AM
> *To:* kolb-list@matronics.com
> *Subject:* Kolb-List: Mark 3 performance up high
>
> I have a potential buyer for my Mark 3X who lives out in the mountains
> (6000' elevation). Anyone have takeoff and landing distances under such
> circumstances?
>
> Jim
>
> *
>
> href="http://www.matronics.com/Navigator?Kolb-List">http://www.matronic
s.com/Navigator?Kolb-List
> href="http://forums.matronics.com">http://forums.matronics.com
> href="http://www.matronics.com/contribution">http://www.matronics.com/c
*
>
> *
>
===========
===========
===========
===========
> *
>
>
Message 2
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Firefly at High Altitude |
Hello,
I am new to the list. I am considering a legal 103 ultralight Firefly
with a 40hp engine. The bad news is that I live at 7171 ft ASL. Other
near by fields are still above 6000 ft ASL. Will a 40hp Firefly be able
to fly at these kinds of altitudes.
Thank you for any information.
Best Regards,
Paul
Message 3
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Firefly at High Altitude |
Kolb Firestar II @ 11,000' w/ Rotax 503...no performance problems.=0A=0A=0A
=0A________________________________=0AFrom: Paul Littleton <ka5biw@swcp.com
>=0ATo: kolb-list@matronics.com =0ASent: Sunday, October 6, 2013 3:31 PM=0A
Subject: Kolb-List: Firefly at High Altitude=0A=0A=0A--> Kolb-List message
posted by: Paul Littleton <ka5biw@swcp.com>=0A=0AHello,=0A=0AI am new to th
e list.- I am considering a legal 103 ultralight Firefly with a 40hp engi
ne.- The bad news is that I live at 7171 ft ASL.- Other near by fields
are still above 6000 ft ASL.- Will a 40hp Firefly be able to fly at these
kinds of altitudes.=0A=0AThank you for any information.=0A=0ABest Regards,
===============
Message 4
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Firefly at High Altitude |
Brother Littleton:
Welcome to the List, sir.
I do not presume to offer myself as an expert in this matter, never having
operated a Firefly at the altitudes you mention, rather having only run one
down at sea level for a while.
I do have some limited experience with higher altitude operations, however.
I flew my 'ol Stinson off Meadowlake airport at Colorado Springs for three
years... That field is at about 6,800 feet. Here are a few things I
learned, some of which may help with your question:
- In the summertime it was common to see density altitudes on the airport at
or near the service ceilings of many small airplanes and the scattered small
remains of past kinetic events in the weeds off the higher north end of the
asphalt strip bore testament to that fact.. About four months of the year,
my 165 hp bird would become a 120 hp clunker which I never dared fuel at
more than half capacity and which became incapable of carrying an average
adult in the back seat. I don't know what the "service ceiling" of a
FireFly might be, but I once took a fit and coaxed mine to eight K feet. It
clearly wasn't a happy participant in that particular experiment once it
"climbed" past 7K with my flabby butt perched in the front. I am certain
the longer wing of a Firestar would have performed much better.
- Rules of thumb can be dangerous, but here are a couple anyway: Subtract
3.5 to 4 percent from the rated horsepower of the engine for every thousand
feet above S.L. Add about 12 percent to the takeoff roll for every thousand
feet of altitude, then add 12 percent more to the above numbers for every 15
degrees F above the standard 59F SL value for your altitude (which is 38F).
Do the math. Weigh yourself. You didn't mention your weight, but that would
likely be a significant factor, one way or another on a 6K ft. elev.
airfield with a 31 hp. machine. My Fly never actually groans out loud when
it sees my 208 lbs coming, but I know what the little buggar is thinking,
even here at 20 feet MSL. I would suppose that if you are near my weight,
you would need a pretty good airfield and some very well balanced wheels and
tires. If you are heavier than me, I suspect you may well need Rand McNally
and some reliable street directions.
Hope this may help a little. I don't know your level of aviation experience
and I trust my free advice hasn't insulted you should you prove to be a
retired Delta 747 captain who just lost his medical and retired to Colorado.
Worth what ye paid fer it...
Good luck.
beauford
FF-076, N173BW
Brandon, FL
-----Original Message-----
Subject: Kolb-List: Firefly at High Altitude
. I am considering a legal 103 ultralight Firefly
with a 40hp engine. The bad news is that I live at 7171 ft ASL. Other
near by fields are still above 6000 ft ASL. Will a 40hp Firefly be able
to fly at these kinds of altitudes.
Thank you for any information.
Best Regards,
Paul
Message 5
INDEX | Back to Main INDEX |
PREVIOUS | Skip to PREVIOUS Message |
NEXT | Skip to NEXT Message |
LIST | Reply to LIST Regarding this Message |
SENDER | Reply to SENDER Regarding this Message |
|
Subject: | Re: Firefly at High Altitude |
Hi Brother Beauford,
I was having a poorly executed day today. Things were just not going very
well at all and I was feeling rather down in the dumps. That is, until I
opened your response to Brother Littleton with your advice on high altitude
flying in the FireFly. Immediately my attitude improved and by the end of
your response I was LOL. Thanks for keeping humor in the list.
Bill Varnes
Kolb FireStar
Audubon, NJ - elevation 120' msl
Do not archive
In a message dated 10/6/2013 9:13:25 P.M. Eastern Daylight Time,
beauford173@tampabay.rr.com writes:
Brother Littleton:
Welcome to the List, sir.
I do not presume to offer myself as an expert in this matter, never having
operated a Firefly at the altitudes you mention, rather having only run one
down at sea level for a while.
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|