> I fly a Mustang 2 with the big flap that goes under the belly and it is
> very effective.
Thanks for all the feedback, I'm going to try it. Now I have to build one
of these:
http://www.n56ml.com/99100504.jpg
instead of the much smaller plans built design that only gave a chord
about 8-10" IIRC. The reason they had such a small chord is because
they would drag on the ground with the short retractable gear.
Original Message
Subject: KR> Speed Brake/Split Flap
From: Mike Stire
I have a standard 2 with retracts, and no speed brake. Watch your airspeed on
final and you will be fine. You will only need 1/2 that runway
Lee Van Dyke
> On Nov 4, 2016, at 6:01 PM, Ken Hurley via KRnet
> wrote:
>
> How many planes and how many hours have KR's flown without one? Enjoy you
> "Has anyone tried to build an extended speedbrake that reached out the
stub
wings to create somewhat of an integrated split flap design?"
Like the Mustang II has. I've got some great pictures . . . somewhere .
. . of the MII's split flap that I took at French Valley a couple years
ago. It's a
?If ?you pile it into the trees on the far end of the runway on your first
flight, you will kick yourself to death...
?Mark Langford
I am going to the hanger to install my speed brake (with holes).
Joe Nunley?CW2 US Army RetiredBaker JROTC Instructor?Baker Florida?
?
?
Joe Nunley wrote:
> Do I need my speed brake installed before my first flight? I have a
mechanical speed brake ready to install but I am ready to fly. My
thought was fly sooner, keep it simple with no additional items to
effect the first flight. I live on a 3000 foot grass strip.
I flew my
Sent from my iPad
On Nov 4, 2016, at 9:27 PM, Dan Prichard via KRnet
wrote:
> I designed the speed brake and flaps to operate separately. Travel time on
> the speed is about 2 seconds to 85 degrees. You can see the flaps operate on
> YouTube. Look for N257DP. For short field I was planning
Joe Nunley wrote:
> Do I need my speed brake installed before my first flight? I have a
mechanical speed brake ready to install but I am ready to fly. My
thought was fly sooner, keep it simple with no additional items to
effect the first flight. I live on a 3000 foot grass strip.
If you have cle
At 08:01 PM 11/4/2016, you wrote:
>How many planes and how many hours have KR's flown without one? Enjoy your
>time in the air.
++
IMHO, many KR's end up as hangar queens simply because of how
aerodynamically slick they are and the chall
At 07:49 PM 11/4/2016, you wrote:
> Do I need my speed brake installed before
> my first flight? ? I have a mechanical speed
> brake ready to install but I am ready to fly. ?
> My thought was fly sooner, keep it simple with
> no additional items to effect the first flight.
> I live on a 30
How many planes and how many hours have KR's flown without one? Enjoy your
time in the air.
On Nov 4, 2016 7:50 PM, "bjoenunley via KRnet" wrote:
>
>
> Do I need my speed brake installed before my first flight? I have a
> mechanical speed brake ready to install but I am ready to fly. My though
Do I need my speed brake installed before my first flight? ?I have a mechanical
speed brake ready to install but I am ready to fly. ?My thought was fly sooner,
keep it simple with no additional items to effect the first flight. I live on a
3000 foot grass strip. ?I have hydraulic brakes. ?Will
-From: Larry Flesner via KRnet Date: 11/4/16 6:59 PM (GMT-06:00) To: KRnet Cc: Larry Flesner Subject: Re: KR>
Speed Brake split flap design
At 12:46 PM 11/4/2016, you wrote:
>I have the RAF48 airfoil on my Kr2 project.? I'm looking into the speed
>brake recommendation.
>
At 12:46 PM 11/4/2016, you wrote:
>I have the RAF48 airfoil on my Kr2 project. I'm looking into the speed
>brake recommendation.
>Has anyone tried to build an extended speedbrake that reached out the stub
>wings to create somewhat of an integrated split flap design?
>Tucker
+++
I designed the speed brake and flaps to operate separately. Travel time on the
speed is about 2 seconds to 85 degrees. You can see the flaps operate on
YouTube. Look for N257DP. For short field I was planning a spoiler set up as
you can see in the gathering photos.
And yes, the plane is still
Paul Visk wrote:
>> If you go back to the 2015 gathering pic's. You'll see Dan design.
It's probably exactly what you want. I think his plan is still for sale. <<
To elaborate, Dan Pritchard's plane has flaps with a "Fowler" type
deployment mechanism, but I didn't notice that they were also co
If you go back to the 2015 gathering pic's. You'll see Dan design. It's
probably exactly what you want. I think his plan is still for sale.?
Paul Visk?Belleville Il?618 406 4705
Sent from my Verizon, Samsung Galaxy smartphone
--
Hi,
I wasn't able to get to the archive page, so my apologizes if
Hi,
I wasn't able to get to the archive page, so my apologizes if this is a
repeat.
I have the RAF48 airfoil on my Kr2 project. I'm looking into the speed
brake recommendation.
Has anyone tried to build an extended speedbrake that reached out the stub
wings to create somewhat of an integrated s
Those who say you can simply slip it and get the same effect as a flap
or belly board are missing the point, and likely don't have either one
to compare with. All three methods are helpful, however. The beauty of
the flaps on N891JF is that they are huge "split" flaps, famous for good
lift and lo
Thanks Larry. But my reply was meant ask Why you would want to put out your
Brake at high speed. 130 knots. Or even 100 kts.
Phil.
Sent from my iPhone
> On 6 Jan 2016, at 10:03 AM, Flesner via KRnet wrote:
>
>
>> Why would you want to put out a speed brake outside a normal circumstances
>>
?
?
Phil Matheson wrote:
>But my reply was meant ask Why you would want to put out your Brake at high
>speed. 130 knots. Or even 100 kts.
?
Like Mark, sometimes it's not intentional. I always use 10? of flaps on take
off to generate a little extra lift, but sometimes just simply forget to
re
Mike Arnold wrote:
>Hey guys I hear BELLY BOARD AND flaps almost interchangeably . Do you have
and use both ?
My KR2S N56ML has some fairly huge wing flaps on it, while my KR2 N891JF
has the belly board. They are two different things, but accomplish the
same goal...steepening the approach consi
Hey guys I hear BELLY BOARD AND flaps almost interchangeably . Do you have
and use both ?
On Jan 6, 2016 8:43 AM, "Jeff Scott via KRnet" wrote:
>
>
>
>
>
> Phil Matheson wrote:
>
> >But my reply was meant ask Why you would want to put out your Brake at
> high speed. 130 knots. Or even 100 kts.
>
I am confused. Why would you want to put out a speed brake outside a normal
circumstances or landing. Why not just reduce the rpm. And lift the nose. Side
slip. Landing is more fun without flaps. But they are good to have.
PHIL Matheson.
Sent from my iPhone
>
>
> ___
Phil Matheson wrote:
>But my reply was meant ask Why you would want to put out your Brake at high
>speed. 130 knots. Or even 100 kts.
That's an easy one...by accident! On my very first flight of N56ML I
had a plan to go to altitude and test stall speeds, both with and
without the flaps deployed
> Why would you want to put out a speed brake outside a normal
> circumstances or landing. Why not just reduce the rpm. And lift the
> nose. Side slip. Landing is more fun without flaps. But they are good to have.
>PHIL Matheson.
+
Yes, I have seen it Mark. ?I followed the way that you did it . ?Also
Incorporated the things that you would would have done different.?
Paul Visk?Belleville Il618-406-4705
Yes, I'm the guy with the 130 mph speed brake.? See
http://www.n56ml.com/n891jf/speedbrake/ for details, also I'm pretty
Paul Visk wrote:
> You got a good point Larry. Even with soaking the holes with T-88.
Are wood screw good to use for the long term.
Sometimes wood screws are simply the best choice. My speed brake is
installed with a bunch of #6 wood screws on about 3" centers. They
screw through a piece o
You got a good point Larry. ?Even with soaking the holes with T-88. ?Are wood
screw good to use for the long term.
Paul Visk?Belleville Il?618-406-4705
Original message?
I've seen too many screws on aircraft that loosen with vibration over
time.? They get loose, enlarge the hole, etc.?
At 09:09 AM 1/4/2016, you wrote:
>I know there is a 130 miles an hour speed brake with wood screws.
>That is what I was thinking when I initially posted.
+++
I've seen too many screws on aircraft that loosen with
Subject: Re: KR> Speed Brake parts
>
> I believe that 6" is correct. I got mine from NvAero, Steve Glover. It has
> a built in stop and has never failed me. You can go to www.nvaero.com or
> write to info at nvaero.com or call 1.800.515.4811
>
>
>
> At one
I believe that 6" is correct. I got mine from NvAero, Steve Glover. It has
a built in stop and has never failed me. You can go to www.nvaero.com or
write to info at nvaero.com or call 1.800.515.4811
At one time, I knew the brand of that unit, and maybe someone else on KRNet
also knows about i
There are several photos at the bottom of the web page of my speed brake setup.
http://myplace.frontier.com/~flesner/
Larry Flesner
Nothing that I can tell. It is just easier to land, and is a little
heavier.
See N64KR at http://KRBuilder.org - Then click on the pics
See you at the 2011 - KR Gathering in Mt. Vernon, Il - MVN
There is a time for building and it never seems to end.
Daniel R. Heath - Lexington, SC
-Origina
Larry, I built split flaps into the area behind the aft spar in the centre
section after the wing was built.
http://kr2spacemodulator.blogspot.com/search/label/KR-2sS%2004%20Stub%20Wing
s
Darren Crompron also did this too but did his during initial construction.
http://www.kr-2s.com/flaps.html
htt
krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of Daniel Heath
Sent: Thursday, November 26, 2009 10:13 AM
To: 'KRnet'
Subject: RE: KR> speed brake
Here is another place to look.
http://krbuilder.org/BellyBoard/index.html
Here is another place to look.
http://krbuilder.org/BellyBoard/index.html
-Original Message-
+++
Marks web page is a good start. Then go to
http://www.maddyhome.com/krsrch/index.jsp which is the address at the
bottom of every e
At 10:31 PM 11/22/2009, you wrote:
>Where do I get the information on the speed brake. I don't have flaps
>and the ailerons take up the complete trailing edge almost. Thanks,
>larry
+++
Marks web page is a good start. Then go to
http://www.
>Larry, Where do I get the information on the speed brake.
Here is a start. This is how I did mine:
http://www.flykr2s.com/bellyboard.html
Mark Jones (N886MJ)
Stevens Point, WI
E-mail: flyk...@charter.net
Web: www.flykr2s.com
Larry&Sallie Flesner
Sent: Sunday, November 22, 2009 4:00 PM
To: KRnet
Subject: KR> speed brake
At 03:41 PM 11/22/2009, you wrote:
>Any words of advice on getting used to the board or how it should be
>used will be read with great interest...smile...
At 03:41 PM 11/22/2009, you wrote:
>Any words of advice on getting used to the board or how it should be
>used will be read with great interest...smile...
>
>Howard Goodwin
++
I would suggest you first try the speed
There were some recent post about belly boards on the net.
I had forgotten that I have some pictures of mine on the following
web site:
http://mysite.verizon.net/flesner/
Scroll down to the bottom area of the pictures.
Larry Flesner
At 04:30 PM 4/30/2006, you wrote:
>RE: Belly Boards
>Are they interconnected with the flabs are they set up to work
>independent of the
>flaps?
>Don Lively
+
My KR has no flaps, just a speed brake (belly board). If I had both,
I'd have
I've seen one KR-2 with both flaps and bellyboard. The bellyboard is spring
loaded in the up position. It has "ears" that extend outboard of the
fuselage just enough for the flaps to push it down when they are deployed.
This is on N6GM. It's undergoing a little refurbishment at the moment and
A couple people have shown interest in my "ultra simple" VW speed brake
assy. Somebody suggested that I should build them - ready to install. I
have
the necessary stuff to begine making a few if anybody was interested. A price
@ 150.00 was suggested for the handle, torque tube, pushrod,
I could go for that.
Doug Rupert
-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of ifly...@aol.com
Sent: Sunday, October 10, 2004 6:23 PM
To: kr...@mylist.net
Subject: KR> Speed brake Kit?
A couple people have shown interest in my &qu
If you are interested in a speed brake kit - call me a 229-242-2978 and let
me know. I will build you one up and then let you know when it is ready and
ship to you. Then you can send funds if it works out. I will attempt to
have a couple made up this week just to test the waters to see who
mounting it from the front spar is fine, but mounting
it from the rear spar has the added benefit of
pitching the nose down a little to give you better
visibility.
>
Mounting the speed brake further fwd has advantages:
= more space for a longer brake.
= wee bit more height on a tail dragger
The only problem mounting the speed brake at forward spar location would be
for those that would like to bury their navigation antennas in that location
which is an ideal location (short run to the radios, lack of shielding metal
in immediate area as is the case with the rear spar for those running
Edward
Increased drag alone would not cause the nose to drop if one replaced the
thrust to counter the additional drag, since there would be no change in
angle of attack. The nose down tendency is due to a change in the position
of the Center of Pressure (lift) relative to the Center of Gravity.
I am going to install a speed brake in the next couple of days. I am using an
electric Van's RV flap actuator to raise and lower the speed brake. Has anyone
using a speed brake placed the speed brake in any other location other than the
rear spar? My speed brake will be 30" x 9". Any thoughts on
Mark
Check Rich Siefert's KR on the link below. It looks to me like its
attached at the front spar.
http://home.hiwaay.net/~langford/pinebluff2001/
> [Original Message]
> From: Mark Jones
> To: KR Net
> Date: 6/23/2004 6:50:32 PM
> Subject: KR> Speed Brake
>
>
> Check Rich Siefert's KR on the link below. It looks to me like its
>attached at the front spar.
Jack Cooper
+
My non-engineered, gut feel, is that I want my speed brake behind
the center of lift and/or the C.G. I guess for basically the
> Check Rich Siefert's KR on the link below. It looks to me like its
>attached at the front spar.
>Jack Cooper
>+
My non-engineered, gut feel, is that I want my speed brake behind
the center of lift and/or the C.G. I guess for basically the
Mark,
The speedbrake needs to be behind the center of gravity. The further it is
from the cg, the more it will affect pitch, etc. It needs to be mounted
securely, and the rear spar is the logical location, unless you like adding
structural weight to accomplish this elsewhere.
I have an elect
someone and I have no idea if it is right or not.
Brian Kraut
Engineering Alternatives, Inc.
www.engalt.com
-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of larry flesner
Sent: Wednesday, June 23, 2004 11:35 PM
To: KRnet
Subject: RE: KR> Sp
I would be very carefull using the speed brake for anything other than just
that - slowing the bird down.
The speed break (as such) has no effect on the pitch of the aircraft - it's
like coasting down hill with a bit of handbrake applied - your car would
need a steeper hill to keep the speed up
The discussion on belly boards is interesting. I have one set for my project
but just like the Cessnas and Beechcraft I have flown, I can land a plane with
no flaps. It's just a shallower landing angle and you use a little more
runway. But just like they always say, " It's better to have some
I am neither pro nor con to the flaps or belly boards. The only reason that
I would not install either, is because of the weight, complexity, time to
build, more moving parts to break, and least of all, cost.
Other than that, and that I flew the Little Beast in and out of short, paved
and grass
Mark
That is very interesting about the supplemental lift provided by the speed
brake unintentionally as it is deployed for landing.
My brake is solid, hinged even with the face of the rear spar, and has a 25
degree, and 45 degree notches in the brake actuator handle. Hopefully the
inspection
Of Colin & Bev Rainey
Sent: Wednesday, May 19, 2004 2:05 PM
To: kr...@mylist.net
Subject: KR> Speed brake
Mark
That is very interesting about the supplemental lift provided by the speed
brake unintentionally as it is deployed for landing.
My brake is solid, hinged even with the face of t
For a reference about the weight of metal speed brakes, my speed brake is made
of 1/4" five-ply plywood and is 7.5 inches by 30.5 inches. I covered it with
glass on both sides. With the piano hinge attached for mounting, and with
paint, it weighs 2 pounds 1.6 ounces (953 grams). It will be ac
>Hindsight is always 20/20. If I were to do it again, I would use a sheet
of 1/4" Last-a-Foam with reinforcement at the attachment for the actuator arm.
>
>Jim Vance
++
The foam could also be glassed on one side, laid on the fuselage
botto
My alum speed brake is in it's 2nd season now. I chose to activate it
using my own lever design rather than eletrically, because if you need to
retract it instantly due to a missed approach and the trees are at eye
levelmanual activation is the only way to go.
Mine is 10X30 an
Just one more question, Where is the best location to mount a belly board on
a Diehl Tri gear KR standard KR2 with Diehl wings?
Phil Matheson
mathe...@dodo.com.au
VH-PKR ( Phil's KR)
61 3 58833588
Australia.( Down Under)
See our VW Engines and Home built web page at
http://www.vw-engines.com/
w
>Just one more question, Where is the best location to mount a belly board on
>a Diehl Tri gear KR standard KR2 with Diehl wings?
>Phil Matheson
+++
Mine is mounted to the belly skin immediatly behind the rear spar.
I reinforced the floor with a
Larry
Does your speed brake result in a greater nose down attitude than just using
flaps alone? I guess it depends on just where it is hinged. Does it contribute
to lift/stall speed at all?
John
The Martindale Family
29 Jane Circuit
TOORMINA NSW 2452
AUSTRALIA
phone: 61 2 66584767
email: jo
>Larry
>Does your speed brake result in a greater nose down attitude than just
using flaps alone? I guess it depends on just where it is hinged. Does it
contribute to lift/stall speed at all?
>John Martindale
+++
I don't have flaps installed
My question is...what thickness 6061-T6 aluminum should I use? The only
reference I have found stated .060 but personally, I think that is way too
thin. I was more inclined to 1/4". What do you guys think? Thanks
>Mark Jones (N886MJ)
++=
Sou
>I have the manual Rand flap handle mounted to the front center of my main
>spar which will actuate the brake. Thanks for your inputs.
>Mark Jones
+++
Mark,
Make sure you can actuate the handle with your shoulder belts snug.
Having them loose
Netters,
I got in 2.5 hours of flying on the KR today and WHAT A BLAST!!!
I did a few climb checks but I'll need to re-run them again and
I'll post some speed and FPM rates. The only one I'm comfortable
with right now is at 95 indicated I was getting right at 1000 fpm.
It took 1min and 4 sec t
Will the person who wrote the E-mail about the speed brake that is hinged
at the aft side please contact me on the net. Ray goree Thanks
I think that was me Ray.
On Wed, 25 Jun 2003 18:04:45 EDT goreebeth...@aol.com writes:
> Will the person who wrote the E-mail about the speed brake that
> is hinged
> at the aft side please contact me on the net. Ray goree
> Thanks
> ___
Just an update: As some of you know I designed and built
a bellyboard over the winter here in Pa. Today was the first flight with
it installed. In a nut shell the cruise speed was unaffected,( some
thought the board would drag somewhat in the retracted position.) however
the pitch h
Ken,
Are you still using flaps?
r/Bernie
Lexington Park, MD
KR2S Builder
- Original Message -
From: "Kenneth L Wiltrout"
To:
Sent: Sunday, May 18, 2003 5:10 PM
Subject: KR>Speed Brake
> Just an update: As some of you know I designed and built
> a
>to 70 mph and the float is dramatically cut in the flare. After 6 touch
>and goes my total landing distance has been cut by as much as 1/3, it's
>unbelievable how much drag it producesThanks
++
Ken,
Good info. Please tell us the
t;Kenneth L Wiltrout"
> To:
> Sent: Sunday, May 18, 2003 5:10 PM
> Subject: KR>Speed Brake
>
>
> > Just an update: As some of you know I designed and
> built
> > a bellyboard over the winter here in Pa. Today was the first
> flight wi
The speed brake is hinged directly below the aft face of the rear spar
into a hard point on the fuse bottom.. The dimensions are 28" X 10" with
a total of 60 degrees of deflection.
I was hoping for more deflection but the 3 position actuator I designed
only allowed for the 60 deg. I may redo that
...@mylist.net
Subject: KR>Speed Brake
>
> Just an update: As some of you know I designed and built
a bellyboard over the winter here in Pa. Today was the first flight with
it installed. In a nut shell the cruise speed was unaffected,( some
thought the board would drag somewh
or does it take
> three hands to push in the throttle, retract the bellyboard, and
> keep a hand on the stick for the trim change when the board
> retracts?
>
> ---Original Message---
> From: Kenneth L Wiltrout
> Sent: 05/18/03 06:10 PM
> To: kr...@mylist.ne
Is there any pictures showing how to make a speed brake, What size etc.. I want
to prepare for this kind of stuff before I skin it. I proubly be using a seat
motor from a car to push this baby down.
Justin
KR2S-Tearing apart my Corvair
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