KR> Belly Board

Hi all, I am going to retro fit a belly board to my KR2. I have been searching the archives and they are mentioned so often it is hard to find the info I'm after, 3.5 hours of reading and I am more confused. So I have a few questions below and if people could reply I will colate the info into

KR> Belly Board

http://mywebpage.netscape.com/n886mj/bellyboard.html Mark Joes has some info on belly boards Phillip Matheson mathe...@dodo.com.au Australia VH PKR See our engines and kits at. http://www.vw-engines.com/ http://www.homebuilt-aviation.com/ See my KR Construction web page at http://mywebpage.netsc

KR> Belly Board

Bill Clapp made a really nice one with a very simple actuation mechanism. At one time he was going to sell the parts or something like that. Bill, if you are out there, are you selling the belly board stuff now? See you in Mt. Vernon - 2005 - KR Gathering See N64KR at http://KR-Builder.org - T

KR> belly board

Does anybody have pictures of a belly board installation posted on the net or would you share some with me via e-mail. Looking at options for flaps ? vs ? this type of set-up. I?ve researched the archives, seems like in the pas there has been quite discussion surrounding this question ? so guys

KR> belly board

:34 PM To: kr...@mylist.net Subject: KR> belly board Does anybody have pictures of a belly board installation posted on the net or would you share some with me via e-mail. Looking at options for flaps ? vs ? this type of set-up. I?ve researched the archives, seems like in the pas there has b

KR> belly board

At 04:01 PM 12/26/2006, Mark Jones wrote: >Here is mine: http://www.flykr2s.com/bellyboard.html > >Mark Jones + My setup is similar to Mark's and my only comment on his is that it is probably a bit "over-built". I use a Cessna 150 flap motor to

KR> Belly Board

. - Original Message From: Larry&Sallie Flesner To: KRnet Sent: Saturday, January 20, 2007 7:26:33 AM Subject: KR> Belly Board / Diehl gear A >Mine is mounted to the rear spar, but I have Diehl conventional gear, so I >sit a little higher. Larry sits even higher with his lo

KR> Belly Board

At 02:48 PM 1/20/2007, you wrote: >Do you extend them fully everytime? or do you extend them different >degrees depending on the situation? Old Cessnas had 10, 20, 30, and >40 degree extension slots, so do you use yours like this or just one >full setting if deployed. >Larry H.

KR> Belly Board

At 02:48 PM 1/20/2007, you wrote: >Do you extend them fully everytime? or do you extend them >different degrees depending on the situation? >Larry H. ++ Mine is motor driven so I can extend it to any setting I desire. I always run it full down, nearl

KR> Belly Board

>I am just curious, those of you who use belly boards. Do you extend them >fully everytime? When I turn final at about 1/2 mile or so out, I drop mine for 3 seconds which is about half way. When I am about 100 yards from the end of the runway, I drop it all the way and settle in every time with

KR> belly board

Netters - I just finished installing my belly board. Have not tried it yet as my engine (from a collision with a truck) is not back from Great Plains. I followed Mark Jones' method with the board hinged just behind the aft spar. My board is 1/8 foam core with several layers of fiberglass with ha

KR> Belly board

Mine came with holes so I did some research in deciding whether to cover the holes or not and think I remember that the Navy dive bombers had holes in their dive brakes or dive flaps not to increase drag but rather to reduce the effect of the disrupted slipstream over the tail control surfaces. Ha

KR> Belly Board

Can't get into the archives so here's my question. Holes or no Holes? I'm getting ready to install the belly board and before I do I would like to get some feedback. Thanks Dan Prichard Portland, Or.

KR> Belly Board

Save yourself a lot of trouble and do NO HOLES. You can always go back later and add holes, but you can't take them out. See N64KR at http://KRBuilder.org - Then click on the pics 2015 KR Gathering - McMinnville, OR. September 3 - 6 -- See U There. Peoples Choic

KR> Belly Board

#x27;KRnet' Subject: KR> Belly Board Can't get into the archives so here's my question. Holes or no Holes? I'm getting ready to install the belly board and before I do I would like to get some feedback. Thanks Dan Prichard Portland, Or. _

KR> Belly Board

message From: Dan via KRnet Date:12/25/2014 7:23 PM (GMT-06:00) To: 'KRnet' Subject: KR> Belly Board Can't get into the archives so here's my question. Holes or no Holes? I'm getting ready to install the belly board and before I do I would like to ge

KR> Belly Board

solid belly board. I'm no aerodynamic engineer, but I > can't image more deflection than with a solid piece. > > Joe > > > Sent from my Verizon Wireless 4G LTE smartphone > > > Original message > From: Dan via KRnet > Date:12/25/2014 7:23

KR> Belly Board

> I can't image more deflection than with a solid piece I don't follow the "more deflection" line of thought. Do you mean "more drag" ? I've always had a gut feeling the holes created more drag if the Navy used them. My advise is : on the heavie

KR> Belly Board

Keep it up and somebody's going to make a pair of matching boards, one solid and one perf'd, and run a comparison test ;o) Oscar Zuniga Medford, OR

KR> Belly board

I always wondered about the holes in a belly board. The T-28s I flew had them on the belly mounted speed brake that was flush with the fuselage when retracted. I could only imagine that the holes gave it greater drag because of conflicting vortices generated by the holes. At the KR gathering,

KR> Belly Board

YHa. I just returned from a 1.2 hour flight around Steven Point, WI. This was my first flight since 10/25 due to our shi&&y weather we have up here. So what does this have to do with belly boards? Here is how I use mine in the landing sequence. I called left downwind 21 Stevens P

KR> Belly board

I tested the board both ways. The holes seem to help slow it down.Kenny WiltroutN6399U On Friday, December 26, 2014 12:47 PM, Dan Branstrom via KRnet wrote: I always wondered about the holes in a belly board.? The T-28s I flew had them on the belly mounted speed brake that was fl

KR> Belly board

I flew a few hundred hours both ways and the holes did seem to form more drag. Sparky Sparks Sent from Windows Mail From: Kenneth Wiltrout via KRnet Sent: ?Friday?, ?December? ?26?, ?2014 ?3?:?23? ?PM To: KRnet I tested the board both ways. The holes seem to help slow it down.Ken

KR> Belly Board

Mark (Jones), the exhaust note from your airplane really sounds nice. Maybe it's the aft location of the camera that picks up the exhaust sound more clearly, but it sure sounds sweet as you roll off of the active. Oscar Zuniga Medford, OR

KR> Belly Board

I always suspected that holes would give you more drag, and this confirms it. But the problems with holes is how do you keep them from causing drag when you're not using the belly board? I'm pretty sure a surface parallel to the airflow that's punched full of holes would have more parasite drag th

KR> Belly Board

Now, you are hitting the nail on the head. That is what I was trying to get across on my first post on this subject. Is the effort really worth the increased drag, when the board with NO holes has worked on many KR? Even if you go to all that work to fill the holes when the board is up, you are

KR> Belly Board

I am not an aero dynamic expert. I would how ever like to point out that if you look at a golf ball you will notice Dimples. These dimples actually decrease drag, by creating a circle effect just like the bed of a pick up truck with the tailgate up. In a sense, it propels the truck forward

KR> Belly Board

> "Could you build up the area under the holes with epoxy/flox or something similar so it would be level with the surface of the belly board when it's tight against the bottom of the fuselage?" It appears on my belly board that Ken Cottle took the circles of wood cut out of the belly board when he

KR> Belly Board

At that amount of deflection I never saw much affect. After it starts going past that, you feel it, and then when all the way down, it really makes a difference. I originally had a momentary switch on my down, but quickly replaced it with an "all the way down" switch. I get close to 90 degrees.

KR> Belly Board

At 01:50 PM 12/28/2014, you wrote: > Looks like Larry Flesner cut his >holes with scissors so that won't work if you use scissors. + I used a hole saw after the foam was glassed. It cut the glass and foam like butter. I then touched the inside of th

KR> Belly Board

> "I used a hole saw after the foam was glassed." Ha. Now you say that. I saw scissiors in the picture :-). Mike KSEE The #1 Worst Carb Ever? Click to Learn #1 Carb that Kills Your Blood Sugar (Don't Eat This!) http://thirdpartyoff

KR> Belly board

Herbert wrote, "..my bellyboard turns down to about 80 deg. and after talking to some aerodynamicists and some practical trials I decided to let the board without holes. The tests I made are very simple.I took a foamsheet ( 1 meter x 1 meter x 5 mm) ,fixed 5 strings to the edges and the ce

KR> Belly board

> Belly board Herbert wrote, "..my bellyboard turns down to about 80 deg. and after talking to some aerodynamicists and some practical trials I decided to let the board without holes. The tests I made are very simple.I took a foamsheet ( 1 meter x 1 meter x 5 mm) ,fixed 5 strings to t

KR> Belly board

it would seem at least sufficient for our application. Is there a way to check resistance while the board with holes is in the stowed position? > On Dec 30, 2014, at 7:17 PM, bjoenunley via KRnet > wrote: > > Belly board holes or no holes; > > I have considered making a belly board with hole

KR> Belly board

the only thing i could see as a variable, would be the wind traveling Up the windshield and possible skipping over some of the board. if the board is too short, you won?t have any results. Too tall may rip it off the roof. I can?t wait to hear the results. > On Dec 31, 2014, at 1:29 AM, Adam Tip

KR> Belly board

It's a valid test. But "better" testing would be a few vacuum (they also read a little bit of pressure) set up at strategic locations around the test section. While the holes might have more drag.. I bet the flat board causes a bigger "high pressure" zone. On Wed, Dec 31, 2014 at 12:33 AM, Adam

KR> Belly board

Hi, I installed both flaps (20" X 12" inboard) as well as a belly board (clearance 2" hanging 90 degrees down). The idea is to use flaps on approach and use speed brake after touchdown. I will be testing on a 3,000 feet strip, but my personal strip is only 1,200 feet, so want to see if I can lan

KR> Belly Board

Pierre said, "I installed both flaps (20" X 12" inboard) as well as a belly board (clearance 2" hanging 90 degrees down). The idea is to use flaps on approach and use speed brake after touchdown. I will be testing on a 3,000 feet strip, but my personal strip is only 1,200 feet" I think you are

KR> Belly board

KRnet Date:02/12/2015 2:36 AM (GMT-06:00) To: KRnet Subject: KR> Belly board Hi, I installed both flaps (20" X 12" inboard) as well as a belly board (clearance 2" hanging 90 degrees down). The idea is to use flaps on approach and use speed brake after touchdown. I will be

KR> Belly board

Joe, I think it can be made to work with the extra drag you are installing, but there are a couple of issues with your plan. #1), Your KR can land much slower than 70 mph. You should be able to touch down around 55 mph if you hit your approaches right. That's an approximate speed because

KR> Belly board

Paul (Visk)- I changed the subject line to be more relevant. You asked about the forces on the deployed belly board at 130MPH. I don't recall what the calculations were, but when Jeff Scott was converting his belly board actuator a few years ago, we ran some numbers on the forces required to p

KR> Belly board

Oscar did the calculations for the FLAPS on my KR with full flaps deployed to 37?, which is likely a little more area than most belly boards, but similar in loads. The load calculation gave me a safe speed for full flaps of 100 mph IAS with a 10% gust load factor. I have had partial flaps out

KR> Belly board

Guys with speed brakes. Do you always do a full deployment of your brake or do partial deployment as needed? ?I have internal limit switches in my actuator. So all I need is a on on switch. ?Or if I want to stop in the middle. ?I would need a on off on. This would be on my ?stick grip.? Paul Vi

KR> Belly board

At 12:21 PM 1/5/2016, you wrote: >Guys with speed brakes. Do you always do a full >deployment of your brake or do partial deployment as needed? >I have internal limit switches in my actuator. >So all I need is a on on switch. ? Or if I want >to stop in the middle. ? I would need a on off on. +++

KR>Belly Board

Clear DayAre there any plans or drawings for adding a belly board to the KR2? Les Criscillo Tampa, FL lcris...@tampabay.rr.com leslifeandfrie...@groups.msn.com

KR>Belly Board

PM To: KR2 Mailing List Subject: KR>Belly Board Clear DayAre there any plans or drawings for adding a belly board to the KR2? Les Criscillo Tampa, FL lcris...@tampabay.rr.com leslifeandfrie...@groups.msn.com

KR>Belly Board

people's idea's and designs. I have a drawing for a speed brake, E-mail me if you are intrested. Justin N116JW www.geocities.com/attngrabber14/Home - Original Message - From: "Ron Freiberger" To: "KRnet" Sent: Wednesday, November 12, 2003 5:09 PM Subject:

KR>Belly Board

Justin wrote: > THE GUY ASKED A SIMPLE QUESTION AND ALL YOU CAN DO IS TELL HIM TO SEE THE > ARCHIVES! Your flat out lazy Ron Freiberger. Ron is absolutely right. Why should we be expected to regurgitate everything we know about belly boards, when there are 151 messages that cover every single asp

KR>Belly Board

.. you may require a little more handholding...but I'm sure that's another story. Les Criscillo Tampa, FL lcris...@tampabay.rr.com leslifeandfrie...@groups.msn.com - Original Message - From: Mark Langford To: KRnet Sent: Thursday, November 13, 2003 07:28 Subject

KR>Belly Board

Speed brake that I offered to him and anyone else who is intrested. Justin N116JW www.geocities.com/attngrabber14/Home - Original Message - From: "Les Criscillo" To: "KRnet" Sent: Thursday, November 13, 2003 6:53 AM Subject: Re: KR>Belly Board Ron, I appreciate

KR>Belly Board

Hi, all; Spaking of bellyboards.I searched the archives for info on the most effective deflection for B/B's and came up short. My question; Is 45 dgrees enough, or should I find a way to increase it? I'm using Rand Robinson's flap control which deflects to 45 degrees max. Paul Gangemi KR2s

KR>Belly Board

Justin, Roger here, I'm instrested,pls send dwg's/plans off net to me Besides that I have drawn plans for a Speed brake that I offered to him and anyone else who is intrested. Justin N116JW www.geocities.com/attngrabber14/Home

KR>Belly Board

Paul, I too am going to use the Rand flap control. Even though the handle only travels 45°, the linkage can be set up where the board deflects to whatever position you wish. I am going to set mine up for a full 90° deflection. Of course, since there are three settings on the flap handle control, t

KR>Belly Board

I designed my own belly board last winter and flew w/it all summer. My design is unique as it works like a big mouse trap. Using a self designed torque tube that applies spring tension in the closed position I only need 1 cable to activate it. I built my own actuator mechanism that deflects the alu

KR>Belly Board

I built my own actuator mechanism that >deflects the aluminum belly board to 60 deg. I thought I wanted 90 deg as >well but ended up w/60. This works very well as I cut my landing distance >by approx 1/3. But at 70 mph over the #'s you must pay attention as the >sink rate is incredable. ++

KR>Belly Board

Searching on key word "Belly Board" didn't work for me. Obviously I am doing something wrong. >The archive, by the way, is located at >http://www.maddyhome.com/krsrch/index.jsp , and is accessible from the >"krnet instructions" that are listed at the bottom of each message that goes >out on KRnet

KR>Belly Board

:46 Subject: Re: KR>Belly Board Searching on key word "Belly Board" didn't work for me. Obviously I am doing something wrong.

KR>Belly Board

roger, ai would like to have your drawings on the Belly Board. I have mine made 40"x 10" of foam and fiberglass construction. I primarily need the handle mechanism. did you hear from Justin? I have not. Ray Goree rayb

KR>Belly Board

Larry, Do you happen to have a sketch of your handle mechanism? Ray Goree Arlington, Tx raybeth...@wmconnect.com

KR>Belly Board

> Larry, > Do you happen to have a sketch of your handle mechanism?> >Ray Goree ++ Ray, If this post was for me, I have no handle mechanism. My belly board ( 9" X 30" ) is operated with an elect motor/jack screw. The base of the motor

KR> Belly Board

Another name is non-split flap . . . ? Drag flap. Dive brake. Uniflap? Mike KSEE 53 Year Old Mom Looks 33 The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried http://thirdpartyoffers.juno.com/TGL3141/4f8915b9b6bae4509fd

KR> Belly Board Location

The further forward you locate the board, the more unstable it will be. Placing it forward of the center of gravity--like the main spar--would be like putting the feathers on the head of an arrow. I hinged my board from just below the rear spar. My board is only 9 inches high, but given th

KR> Belly board mounting

I want to mount the belly board between the front and rear spar. I can't mount it behind the rear spar because that is my luggage compartment. I searched 235 messages in the archives and only 2 were mounted ahead of the rear spar. One was 4" behind the front spar and the other was somewhere in bet

KR> Belly board mounting

) Wales, WI - Original Message - From: "Ralph H Snyder" To: Sent: Saturday, May 28, 2005 4:34 PM Subject: KR> Belly board mounting > I want to mount the belly board between the front and rear spar. I can't > mount it behind the rear spar because that is my luggage c

KR> Belly board mounting

s too far forward. mine > is on > the front side of the rear spar. Here is a link to my details. > http://mywebpage.netscape.com/n886mj/bellyboard.html > > Mark Jones (N886MJ) > Wales, WI > > - Original Message - > From: "Ralph H Snyder" > To: &g

KR> Belly board mounting

ry Kruyssen Cairns, Australia RAA 19-3873 k...@bigpond.com http://www.users.bigpond.com/kr2/kr2.htm - Original Message - From: Ralph H Snyder To: kr...@mylist.net Sent: Monday, May 30, 2005 5:21 PM Subject: Re: KR> Belly board mounting Mark I like the looks of y

KR> Belly board location

I checked the archives and found 21 posts regarding the location of the belly board. It appears that the location is not real critical since it seems to be working at the main spar, the rear spar, or in between. My board is 10" x 30", 1/16 aluminum with a couple 3/4" U channel aluminum stiff

KR> Belly board location

My KR2 nose wheel has the belly board. I use it often and without flaps if the winds are not good. The belly board gets used about 80% of the time with the flaps used about 30% of the time hope it helps Brian G. Douglas KR2 Killeen Texas N8575C - Original Message - From: "Brad Anker

KR> Belly board location

>My >board is 10" x 30", 1/16 aluminum with a couple 3/4" U channel aluminum >stiffeners. > I'm building a standard KR2 with retractable >gear, >Brad Ankerstar + A 10 inch belly board with retracts? Are you sure you will have enough gr

KR> Belly board location

Thanks Larry, I'm a little nervous about the clearance but I'm thinking I can start cutting if It's too close. I also have the option to reduce the angle. Won't know what I've got for sure until I get it right side up again. Brad Ankerstar KR2R N84BA, Building ankerst...@earthlink.net

KR> Belly Board use

Brad and netters, I have a belly board like Larry Flesner's and would not trade it for the world! My belly board acts as well or better than any set of flaps I have used. I found that on my first flight, that my KR2 would not slow down on downwind, even at idle, and I thought I was going to have

KR> belly board use

I use my belly board like flaps. I am going to add the electric motor control from Van's this winter for activation. I apply the first setting currently 25 degrees just after turning base, or just before if I want to make a shorter approach. My theory, and what I have always taught is that you sho

KR> belly board use

Just wanted to ask if they work better with holes in them. It would seem that they would generate more drag that way. I noticed that some of them are an aluminum plates with no holes. -Joe > I have no > holes in mine and it works great. It is attached to the rear spar. > > > > Colin Raine

KR> Belly board & linkage

Dan's link didn't work for me but I've seen that link before and it shows Jim Morehead's linkage and belly board (I think). Otherwise, Jim posts here from time to time so he won't mind me posting his email. I'm sure he'd be happy to help. KR2JM at sbcglobal.net Mike Stirewalt KSEE __

KR> Belly board & linkage

Here is the link to my belly board set up. http://www.flykr2s.com/bellyboard.html Mark Jones (N886MJ) Stevens Point, WI E-mail: flykr2s at charter.net Web: www.flykr2s.com

KR> Belly board & linkage

Go to the home page and on the drop down menu pick belly board. It is mine. I designed it after Marks so you will see a lot of similarity. KRBuilder.org Dan Heath > On Dec 5, 2013, at 1:39 PM, wrote: > > Dan's link didn't work for me but I've seen that link before and it shows > Jim Morehea

KR> Belly Board lights

My airplane (Ken Cottle's KR-1?) didn't come with landing/taxi lights. I wasn't about to possibly mess up the beautiful Diehl wing skins and didn't want to add complexity to the lower cowling which comes off and on a lot, so decided to put my lights on the belly board. Lenses are angled so they a

KR> Belly board actuators

I found this 6" actuator at Everestpart Supplies. They also have 4" and 12". I think from what I've read 6" should be ok. Any advise? http://www.everestpartssupplies.com/products/new-heavy-duty-linear-actuator-6-inch-stroke-225-pound-max-lift-dc-12v-12-volt Paul Visk Belleville Il. 618-406-4

KR> Belly board actuators

Paul Visk wrote: >>I found this 6" actuator at Everestpart Supplies. They also have 4" and 12". I think from what I've read 6" should be ok. Any advise?<< That's certainly overkill for the force you need. I'll have to check and see, but I think mine is 100 pounds or so, and it has no problem.

KR> Belly board actuators

Look at this one 5.9" STROKE 12 VDC LINEAR ACTUATOR W/POT CW | ? | | ? | ? | ? | ? | ? | | 5.9" STROKE 12 VDC LINEAR ACTUATOR W/POT CW12 VDC 110 LB. LINEAR ACTUATOR New, CREATIVEWERKS model CWLACT6P light duty linear actuator. Built-in potentiometer allows for use with position-sensing circuits.

KR> Belly board actuators

(GMT-06:00) To: krnet at list.krnet.org,PPaulVsk at aol.com Subject: KR> Belly board actuators I found this 6" actuator at Everestpart Supplies. They also have 4" and 12". I think from what I've read 6" should be ok. Any advise? http://www.everestpartssupplies

KR> Belly board actuators

Joe, That's a good point. I remembered Larry video for his belly borad and remembered how fast it reploed -Original Message- From: bjoenunley via KRnet To: Paul-Visk via KRnet Sent: Mon, Feb 9, 2015 11:20 am Subject: Re: KR> Belly board actuators At an actuation rate

KR> Belly board actuators

- Original Message - From: "bjoenunley via KRnet" > At an actuation rate of 12mm or .472 inches per second it will take > approximately 12 seconds for the belly board to fully extend. > > Is that fast enough? The faster an actuator extends is better. The reasoning being this is that

KR> Belly board actuators

I have been using this type of actuator in industry for years. The FA35 series I never had any luck with. They use plastic gearing and if you over torque them, you will take out the main gear. I have been using the Duff Norton LT-255 series now for 5 or 6 years. I have about 150 units in use. N

KR> Belly board actuators

Excellent info Bill. Thanks for letting everyone know. Mark Jones (N886MJ) Stevens Point, WI E-mail: flykr2s at charter.net Web: www.flykr2s.com - Original Message - From: "Bill Wood via KRnet" To: Sent: Monday, February 09, 2015 12:24 PM Subject: KR> Belly board actuat

KR> Belly Board Actuators

g,PPaulVsk at aol.com> Subject: KR> Belly board actuators I found this 6" actuator at Everestpart Supplies. They also have 4" and 12". I think from what I've read 6" should be ok. Any advise? http://www.everestpartssupplies.com/products/new-heavy-duty-linear-actuato

KR> Belly board actuators

If you go to Surplus Center.com click on Electric than on Linear Actuators you will find a lot of them at a very reasonable price?? Tom On Monday, February 9, 2015 11:24 AM, Paul-Visk .? ?via KRnet wrote: I found this 6" actuator at Everestpart Supplies. They also have 4" and 12".? I t

KR> Belly board actuators

2s.com > > > > - Original Message - From: "Bill Wood via KRnet" list.krnet.org> > To: > Sent: Monday, February 09, 2015 12:24 PM > Subject: KR> Belly board actuators > > >> I have been using this type of actuator in industry for years.

KR> Belly board actuators

Why not just use a manual lever and linkage? That way you could move it as fast or slow as u want.

KR> Belly board actuators

Chris Prata wrote: >> Why not just use a manual lever and linkage? That way you could move it as fast or slow as u want.<< It's possible, but real estate and the lack of three hands was my logic. If you put it on the floor where you can reach it with tight shoulder belts, you've got to dodg

KR> Belly board actuators

> taking about 5 seconds to retract, which is about as slow as I'd > care for them to retract. >Mark Langford + Mark's 5 seconds is pretty close. My belly board takes about 6 seconds to extend / retract from maximum deflection of

KR> Belly board mechanism

> "Best mech design I saw was probably on Bill Claps airplane. It was a VW brake lever on the left side of the cockpit. The bottom had a rotating arm over to the center. At the center was a arm to the belly board that dropped the board. Pretty simple." That sounds just like the design used by Jim

KR> Belly board holes

Having flown mine with holes and with holes covered up, it has seemed the belly board is a little more effective with the holes covered up. I'm installing landing & taxi lights in two of the belly board holes and was wondering if I could clarify once and for all why the dive bombers in WWII had

KR> Belly board holes

>. they did it because the airflow over the tail >was so disturbed by just straight dive brakes without holes that the >plane was hard to stabilize in the dive so they could aim their >torpedoes. >Another reason holes are drilled in belly boards and wing-mounted speed >brakes is to lighten them. >

KR> Belly Board actuators:

Attn Mark Jones: Mark take a look at these actuators and give me your opinion please. Your setup looks nice. Would you make any changes if you had to re-do it? http://www.dcactuators.com/?gclid=CISwv5rbypsCFRJM5QodCmN-KQ Howard Goodwin Washington, N.C. N742HG

KR>belly board (Larry)

Larry Flesner wrote: I have no handle mechanism. My belly board ( 9" X 30" ) is operated with an elect motor/jack screw. The base of the motor is anchored and the jackscrew makes a straight line push/pull on the board to activate. Larry that is a great way to activate your belly board .I would

KR> Belly Board motor

>My flap motor (which I believe is identical to Mark Jones' belly board >jackscrew) weighs one pound, 7.8 ounces, and burns .63 amps at 12 volts. >Mark Langford, Huntsville, Alabama ++ Mark L., Thanks. I guess that splits the differance on

KR> Belly Board motor

burns .63 amps at 12 volts I would have expected a larger drain under typical flight loads - did you give it some "resistance"? Please be real careful about lowering mechanisms that may fail /burn out /trip at a bad time. A belly board contributes very little (relat

KR>Belly board actuator

I have a 6” actuator fitted and very slow 35sec to full deploy. ( 7.5 mm / sec). I did not take that into consideration when purchased. Can any one suggest a way of placing a flap travel indicator on the panel? Phil Matheson. Sent from my iPhone -Please see LIS

KR> Belly Board / Diehl gear

A >Mine is mounted to the rear spar, but I have Diehl conventional gear, so I >sit a little higher. Larry sits even higher with his longer legs ( I think, >sorry if I am wrong Larry ). >Colin Rainey Jeff Scott and I are the only ones that ha

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