Re: KR> Belly boards and/or Flaps

I added flaps to my KR after 500 hrs of flying with no deployable drag, then flew it another 900 hours after the flap installation. My flaps were significantly larger than the "stock" flaps as mine hinged just aft of the rear spar and deployed down to 38°. They were the width of the stub wing

Re: KR> Belly boards

I can tell you I had to KR's. The one I built and Les Palmer's and the flaps did not do anything for either one of those airplanes. You could pull them on and you really could not tell a difference in landing or take off. Sent from my iPhone > On Dec 14, 2020, at 7:24 AM, Flesner via KRnet wro

Re: KR> Belly boards

On 12/14/2020 1:03 AM, Michael via KRnet wrote: I will also be moving fuel out the cockpit to stub wing tanks while I have the fuselage upside down ++ Keep in mind that you will be shifting your C.G. aft when you do that.  It is

Re: KR> belly boards

years ago when I had 81JM upsidedown I used carbon and resin to connect the flaps under the airplane making a belly board and stiffer flaps. can't say it did much good, though it never caused any problems. Easy to do and still there..

Re: KR> Belly boards

Greetings Mike & Co I am reading this thread with glee as my next stage in finishing my build is the fowler-flaps and belly board. I will also be moving fuel out the cockpit to stub wing tanks while I have the fuselage upside down :) Do you have plans, drawings, photo's or instructions of deta

Re: KR> belly boards

pitch change when fully deployed. Roger Bulla -Original Message- From: n357cj via KRnet Sent: Saturday, December 12, 2020 3:52 PM To: KRnet Cc: n357cj Subject: KR> belly boards Hi Guys For anyone using a belly board on their KR's I would like to know what size they have, is it t

Re: KR> belly boards

On 12/13/2020 8:37 PM, Samuel Spanovich via KRnet wrote: ..the second I extend the speed brake, for whatever reason, my plane decides to pitch up a decent amount. + Mine pitches nose up also with extension

Re: KR> belly boards

Larry, My “reasoning” is simple; In my plane, regardless of with a passenger or not, if straight and level.the second I extend the speed brake, for whatever reason, my plane decides to pitch up a decent amount. To counter this, I need a considerable amount of nose down trim, otherwise

Re: KR> Belly boards

I am really happy learning all I can about these little airplanes I just went and picked mine up this weekend it also has the belly board with holes in it and I was reading to your email towards the end you said that it would be handy to have them tied in with the regular flaps and it’s funny th

KR> Belly boards

> "For anyone using a belly board on their KR's . . ." Joe, when I first got my plane from Steve I looked into the "holes vs solid" question and learned that the dive bombers such as the Douglas SBD used holes in the flaps to reduce weight and, more importantly, to reduce aerodynamic stress rela

Re: KR> belly boards

---Original Message- For anyone using a belly board on their KR's +++ I sent Joe a bunch of info directly.  I recalled seeing an electrical drawing of board up / down circuit I used.  Hand drawn and primitive. This one a very basic dra

Re: KR> belly boards

Hi Joe. You can see what Roy Marsh built for N133RM on my web site. The final measurements are 8" x 32". It does have large holes cut into it. With no other configuration changes while in slow flight (2200 RPM & 65 MPH indicated airspeed) the airplane goes from straight & level to a 400 FPM descent

Re: KR> belly boards

Joe Horton wrote: >> For anyone using a belly board on their KR's I would like to know what size they have, is it the right size (opinion) and a debate that I remember from many years ago ...with holes in it or not to have holes .<< Here's how I did mine on the KR2full width of the flat b

Re: KR> belly boards

On 12/13/2020 2:28 PM, Samuel Spanovich via KRnet wrot recommend deploying it when landing in a crosswind: just like with flaps, it is very easy to get blown away if you get too slow. In this case, I just leave it retracted. I also don’t however if flying with a passenger, with the speed brak

KR> belly boards

Hey Joe N6399U has a belly board installed. While I don’t know the “exact” dimensions of it off the top of my head, it is probably 10-12” in length, and the width is basically the entire underside of the aircraft. Mine has holes in it as well, which doesn’t seem to reduce its effectiveness at

KR> belly boards

Hi Guys For anyone using a belly board on their KR's I would like to know what size they have, is it the right size (opinion) and a debate that I remember from many years ago ...with holes in it or not to have holes . I will be flipping Dr. Deans over in the next week or so and want to finish e

KR> Belly Boards

Netters; Before I installed my manually operated belly board, I was wondering about 3 issues in relation to it's operations: 1) How hard would it be to pull the handle? I found that it wasn't much harder to pull the handle at 150 mph than when I was sitting on the ramp. 2) What effect wo

KR> Belly Boards

>2) What effect would it have if I forgot to raise it while doing touch and goes? Almost unnoticeable since,I'm getting about 130 hp on takeoff from my Subie EJ-22 with PSRU. It would probably have a bigger effect if I was using a smaller engine. >3) What effect would it have in cruise flight?

KR> Belly Boards

ng heads, since I'm water cooled. However, I suppose I'll give it a try. RV > > From: larry flesner > Date: 2004/08/25 Wed PM 05:30:33 EDT > To: KRnet > Subject: Re: KR> Belly Boards > > >2) What effect would it have if I forgot to raise it while do

KR>belly boards

Does anyone have any advice on the belly board flaps?