Today's Message Index:
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1. 04:57 AM - MK-3 FG Nose wanted (Aaron Gustafson)
2. 08:12 AM - Re: Quiet Kolb (jb92563)
3. 08:30 AM - Re: Gyrocopter intercept (jb92563)
4. 09:08 AM - Re: I soloed Saturday! (jb92563)
5. 09:22 AM - static thrust question (Arksey@aol.com)
6. 09:27 AM - Re: fuel prices (jb92563)
7. 09:45 AM - Re: Re: Quiet Kolb (John Hauck)
8. 10:08 AM - Restricted Airspace Over and Around Federal Prisons (John Hauck)
9. 10:24 AM - Strange Vibrations (John Hauck)
10. 10:25 AM - Re: Ultralight Grand Champion (Ben Ransom)
11. 10:51 AM - Re: Re: Gyrocopter intercept (Dana Hague)
12. 12:35 PM - Re: Re: Prison airspace (Russ Kinne)
13. 12:43 PM - Re: Gyrocopter intercept (jb92563)
14. 02:53 PM - 2 blade vs 3 blade, was: Gyrocopter intercept (Dana Hague)
15. 04:54 PM - Re: 2 blade vs 3 blade, was: Gyrocopter intercept (planecrazzzy)
16. 04:57 PM - Re: Ultralight Grand Champion (N27SB@aol.com)
17. 07:40 PM - Re: static thrust question (Denny Rowe)
Message 1
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| Subject: | MK-3 FG Nose wanted |
If anyone has a damaged FG nose for a MK 3 Classic I might take it off
your hands for cash. I need something to start with for a rebuild
project. Contact me 906 774 0683 or agustafson@chartermi.net
Aaron Gustafson
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I seem to remember something in the regs about not overflying Federal prisons at
less than 2000' AGL or something like that.
That would make it quite a problem on the approach end of a runway unless you have
a Heli.
Ray
--------
Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Riverside County, CA
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Message 3
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| Subject: | Re: Gyrocopter intercept |
The more blades your prop has the greater the static thrust, but as you start moving
through the air those extra blades actually limit your top speed.
A 2 blade may not get you quite the same initial acceleration and climb rate but
your top speed will be greater.
Your best climb would be at a higher speed with a 2 blader than with a 3 or more
blades prop.
2 blader makes for a more efficient cruise prop than a 3 blader.
Ray
--------
Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Grob 109 Motorglider
Riverside County, CA
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| Subject: | Re: I soloed Saturday! |
Congrats Grant,
A long traveled road makes the success that much sweeter.
Its good to see that interest in flying actual planes instead of simulators is
still going on.
Soon your flying will interest others in your circle of friends and one day you
may give a ride to one that starts another on the path as well.
My addiction started when I was 7 and my dad bought me a glider ride.
That lead to me taking up flying gliders in my early 30's and as my surplus income
and time increased then so did my "fleet" as you can see in my signature block.
My latest addition was 2 weeks ago. This one give me range so I can travel 500
nm+ on a tank of gas and take a friend.
Still working on getting my UltraStar going....engine troubles.
Enjoy and always fly safe.
--------
Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Grob 109 Motorglider
Riverside County, CA
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| Subject: | static thrust question |
hi group.
have any of you run a static thrust test on a 503 rotax and if so what
were the results? thanks in advance. Jim Swan
firestar ll N-663S 503 rotax michigan
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An interesting development in fuel prices in CA at least.
Our glider club buys MOGAS for the towplane in bulk(400 gals) at a time.
Interestingly the price has not gone up much since all the fuel stations prices
went up.
We are still paying around $2.55/gal.
It seems that this fuel is not subject to a lot of the ussual taxes as it is designated
for agriculture use (IE not automobile use)
At the pumps here in CA we are paying $4.55/gal
Anyone think of starting an UL strip on your farm and keeping a fuel supply???
Or maybe a non-profit flying club?
Looks like the real thieves in this fuel price gouging are our own tax people.
Cant blame the Oil moguls for that can we?
I feel like the US people and the fuel markets here are being manipulated internally
at a high level.
What the hell are they doing to us??? I never voted for this!
--------
Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Grob 109 Motorglider
Riverside County, CA
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Message 7
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> I seem to remember something in the regs about not overflying Federal
prisons at less than 2000' AGL or something like that.
>
> Ray
Ray:
Take a look at a sectional. Find a federal prison. See if there is a
restricted area around and/or above the prison. If there is, it should be
so noted on the sectional.
john h
mkIII
Message 8
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| Subject: | Restricted Airspace Over and Around Federal Prisons |
> I seem to remember something in the regs about not overflying Federal
prisons at less than 2000' AGL or something like that.
>
> Ray
Ray:
I changed the subject line to reflect what we are talking about.
Took at look at two federal prisons, one near TLH (Tallahassee, FL) and one
on MXL (Maxwell AFB, AL). No indication of restricted airspace.
I don't recall ever seeing restricted airspace at federal prisons in my
meandering around the country.
john h
mkIII
Message 9
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| Subject: | Strange Vibrations |
Hi Gang:
Not long ago picked up an unidentified vibration, initially at cruise. I
could feel it in the rudder pedals. Figured I had dinged the prop or gotten
a blade out of phase (never had blade pitch on a Warp Drive migrate before).
Rechecked prop pitch on all blades. Checked out good. Not long after,
several flights, I got an unusual vibration at 1,900 to 2,000 rpm, just off
idle. This is an area that is usually very smooth. First noticed it during
a decent with the throttle closed and the rpm hanging around 2,000. On the
ground it was very annoying. Rechecked carb synch......OK. Still got the
vibration. Nothing changed. ;-( ???
Reset the fuel needles back to stock setting. During the process lost the
long lever on the choke actuator on the right carb. Never did find it, but
during the process of searching the inside of the cargo compartment (yes,
Miss P'fer was designed with a real cargo compartment) I discovered the fuel
tank had migrated to the rear and right making contact with a fuselage tube
brace. This morning I moved the fuel tank back where it belongs. Test
flight indicated my mysterious vibration had disappeared. ;-) Now I am
happy again.
Travis Brown has ordered me a new lever from Bing which will be here
tomorrow so I can head out for LA first thing Friday morning. Thanks a
million, Travis. You be da man!!!
Take care,
john h
mkIII - Still flying and still learning new stuff every day.
Message 10
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| Subject: | Re: Ultralight Grand Champion |
If you can post a link to that cover photo, I'd like to see it.
Last wknd I spent some time buzzing low up the Sacramento River, and
floats sure seemed like a good idea. But I need another project like a
hole in the head.
Thanks
-Ben/ FS-KXP
N27SB@aol.com wrote:
> Thanks Dennis, I don't think that I have ever flown it with shoes on.
>
> In a message dated 7/8/2008 12:55:50 P.M. Eastern Daylight Time,
> Dennis.Kirby@kirtland.af.mil writes:
>
> Great article about your Kolb, and great pictures, too.
> I especially liked the photo of you flying it barefoot, hanging ten
> (toes) over the tops of the rudder pedals!
>
> Congratulations to you and Bryan M!
>
> Dennis Kirby
> Cedar Crest, NM
> Do not archive
>
>
> ------------------------------------------------------------------------
> Gas prices getting you down? Search AOL Autos for fuel-efficient used
> cars <http://autos.aol.com/used?ncid=aolaut00050000000007>.
> *
>
>
> *
Message 11
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| Subject: | Re: Gyrocopter intercept |
At 11:27 AM 7/9/2008, jb92563 wrote:
>The more blades your prop has the greater the static thrust, but as you
>start moving through the air those extra blades actually limit your top speed.
>
>A 2 blade may not get you quite the same initial acceleration and climb
>rate but your top speed will be greater.
>
>Your best climb would be at a higher speed with a 2 blader than with a 3
>or more blades prop.
>
>2 blader makes for a more efficient cruise prop than a 3 blader.
Actually that's not quite correct, except in some limited circumstances.
The only time there is any advantage to more than two blades is if the 2
blade prop can't absorb all the power the engine produces. Generally this
is only a problem where blade size is limited, either by tip speed or by
space constraints.
If you replace a 2 blade prop with a 3 blader of the same diameter, you
will have to have less pitch in order to allow the engine to reach full
rpm, so yes, you'll get more static and low speed thrust at the expense of
cruise performance (the thrust will fall off as airspeed increases). The
extra blade(s) don't limit the speed, the lower pitch does.
The best climb speed won't change, that speed is dependent on the aircraft,
not the propeller, design. But the actual _rate_ of climb depends on the
prop efficiency.
-Dana
--
Okay, who put a "stop payment" on my reality check?
Message 12
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| Subject: | Re: Prison airspace |
Ray
I think overfly regs are on a local basis for state prisons at least;
each prison seems to decide what they want to ask for.
The State Prison at Stormville NY (N69) is INSIDE the traffic pattern
for the airport, and does get flown over occasionally without any
huge outcry. This airport makes more money with its flea markets than
it does as an airport, also 'wide cracks &weeds on runway', according
to AOPA.
And no snow removal. Not much traffic now, but there are some UL's
and at least one gyrocopter. I fear its days are numbered, too bad,
it's been there forever.
I'm sure there are some rules somewhere for Federal prisons. The FCI
at Danbury (DXR) is a reporting point on approach; it's just under 4
miles away, in class D airspace. Nothing on the sectional other than
a small black square and the word 'prison'. Lit up like you wouldn't
believe at night. Never heard of a complaint for overflights, even
when Leona Helmsley was there. A common-sense approach seems to be
working, but they haven't yet returned phone calls.
Russ
do not archive
On Jul 9, 2008, at 11:10 AM, jb92563 wrote:
>
> I seem to remember something in the regs about not overflying
> Federal prisons at less than 2000' AGL or something like that.
>
> That would make it quite a problem on the approach end of a runway
> unless you have a Heli.
>
>
> Ray
>
> --------
> Ray
>
> Kolb UltraStar (Cuyuna UL-202)
> Moni MotorGlider
> Schreder HP-11 Glider
> Riverside County, CA
>
> Do Not Archive
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=191948#191948
>
>
Message 13
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| Subject: | Re: Gyrocopter intercept |
Dana,
My logic behind the 2 blade, faster airspeed for best rate of climb is:
The 2 blade produces more thrust at greater airspeeds than a 3 blade so more speed
equals greater lift from the wing up to some optimum point and hence a greater
rate of climb.
In practice you would probably notice a flatter initial climb with a 2 blade but
a greater rate of climb after your speed has increased up to that magic best
climb rate speed.
If you need to clear obstacles 3 blade gives you quicker initial acceleration and
rate of climb that diminishes slightly with speed and is what most field hoppers
would want.
If you want to go touring/cruising a 2 blade is the way to go.....or get an inflight
adjustable 2 blade and have the best of both worlds.
After seeing that my Grob 109 - Hoffman featherable 2 speed prop is $2500 for an
overhaul every 5 years I figure that those inflight adjustable IVO Props at
under 2K are a good deal and may save you that much in fuel costs if you cruise
a lot in that many years.
--------
Ray
Kolb UltraStar (Cuyuna UL-202)
Moni MotorGlider
Schreder HP-11 Glider
Grob 109 Motorglider
Riverside County, CA
Do Not Archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=192007#192007
Message 14
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| Subject: | 2 blade vs 3 blade, was: Gyrocopter intercept |
At 03:41 PM 7/9/2008, jb92563 wrote:
>
>Dana,
>
>My logic behind the 2 blade, faster airspeed for best rate of climb is:
>
>The 2 blade produces more thrust at greater airspeeds than a 3 blade so
>more speed equals greater lift from the wing up to some optimum point and
>hence a greater rate of climb.
>
>In practice you would probably notice a flatter initial climb with a 2
>blade but a greater rate of climb after your speed has increased up to
>that magic best climb rate speed.
Again, it's not the number of blades but the pitch and blade
area. Increasing the diameter (if possible) of a 2 blade prop has a
similar effect to adding a third blade but is more efficient. In either
case you'd have to reduce the pitch or increase the redrive ratio.
"Greater lift from the wing"... actually the lift from the wing is the same
whether you're climbing, flying level, or gliding. It's always equal to
weight (minor differences due to the angles aside, or maneuvering flight,
which is a whole different situation). If lift exceeded the plane's
weight, you'd _accelerate_ upward, and climb at an ever increasing
rate. Climb comes from excess power, not greater wing lift.
>If you want to go touring/cruising a 2 blade is the way to go.....or get
>an inflight adjustable 2 blade and have the best of both worlds.
In a fast plane with a wide variation between climb and cruise speeds, an
adjustable prop makes a lot of sense. Our Kolbs have a narrow enough speed
range that an adjustable prop is unlikely to be worth the added weight and
complexity.
-Dana
--
"If yew ain't livin' on th' edge, yer takin' up too much room!"
Message 15
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| Subject: | Re: 2 blade vs 3 blade, was: Gyrocopter intercept |
Hey Guys,
I wasn't following the other thread....
But , this is how it worked for me....
I had my 3 blade IVO set - level flight 6500 rpm.....
My cruise at 5900 was around 60 ASI
.
.
.
I changed to 2 blade... I bought the "Blocks" , and took off one of my blades....
I set my pitch for 6500 - level flight....
Now, my cruise is 70 -75 ASI at 5900 rpm
Simple....The 2 blade set-up gives me faster cruise....
Longer take-off distance....less rate of climb....
"I" like it this way.....
.
.
Gotta Fly...
Mike & "Jaz" in MN
.
.
.
http://groups.yahoo.com/group/Buttercup-STOL/
.
.
.
.
--------
.
.
.
.
.
Do Not Archive
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Message 16
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| Subject: | Re: Ultralight Grand Champion |
In a message dated 7/9/2008 1:26:15 P.M. Eastern Daylight Time,
bransom@ucdavis.edu writes:
If you can post a link to that cover photo, I'd like to see it.
If you email me direct at _n27sb@aol.com_ (mailto:n27sb@aol.com) I will
send you the original photo
Steve B
Firefly 007/Floats
Firefly 0040/ Floats 2008 SnF Grand Champion
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**************Get the scoop on last night's hottest shows and the live music
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Message 17
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| Subject: | Re: static thrust question |
Rotax 503 SI-SC on my Loehle Sport Parasol, 2.47 reduction, 66 dia by 40
pitch Tennesee wood prop. Static thrust checked with a strain gauge
hooked up to an industrial electronic scale head that was properly
calibrated with test weights.
262 pounds of thrust.
Denny Rowe, Mk-3, PA
----- Original Message -----
From: Arksey@aol.com
To: kolb-list@matronics.com
Sent: Wednesday, July 09, 2008 12:13 PM
Subject: Kolb-List: static thrust question
hi group.
have any of you run a static thrust test on a 503 rotax and if so
what were the results? thanks in advance. Jim Swan
firestar ll N-663S 503 rotax michigan
do not archive
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