Re: KR> flight test data

2019-04-21 Thread Flesner via KRnet
On 4/21/2019 8:43 PM, Jeff Scott via KRnet wrote: Now, telling me it's 1 or 2 degrees nose down at cruise is meaningful. So it's in the right ball park, depending on what altitudes you normally fly. +++

Re: KR> flight test data

2019-04-21 Thread Jeff Scott via KRnet
Try the same test at 10,000'. You'll find it pitched nose up a degree or two as the indicated air speed is significantly slower. I never worried about the KRs doing fast passes with their noses down. Every plane will do that as they are flying significantly faster than their designed cruise.

Re: KR> flight test data

2019-04-21 Thread Flesner via KRnet
On 4/21/2019 2:18 PM, Flesner via KRnet wrote: Cruise at 5000 feet, 155 mph indicated = -1.5 degrees, with corrections (-.5 + 3.5 ) = +1.5 degrees angle of incidence at the root, -2 degrees at the tip. +++

Re: KR> Mr. Langeschwische's book

2019-04-21 Thread Flesner via KRnet
On 4/21/2019 3:54 PM, Mike T via KRnet wrote: The "critic" is spouting nonsense. Some aerobatic planes have symmetrical wings with no difference between the top and bottom. Do they need to have their wings angled at 45 degrees? Mike Taglieri +++

Re: KR> Mr. Langeschwische's book

2019-04-21 Thread Mike T via KRnet
The "critic" is spouting nonsense. Some aerobatic planes have symmetrical wings with no difference between the top and bottom. Do they need to have their wings angled at 45 degrees? Mike Taglieri On Sun, Apr 21, 2019 at 10:59 AM Chris Kinnaman via KRnet < krnet@list.krnet.org> wrote: > The fir

KR> Mr. Langewische's book

2019-04-21 Thread Mike Stirewalt via KRnet
Larry said, > "Am I missing something here???" No. You are finding just what you were looking for . . . some odds and ends of poorly wrought criticism supporting a position you are/were predisposed to have regarding a book that has somehow escaped your notice. You've done fine without

KR> flight test data

2019-04-21 Thread Flesner via KRnet
Here are the numbers I came up with on today's flight.  They are not scientifically accurate but close. I used a "Smartlevel", accurate to within 1/10 degree and the new scales I recently purchased.  I checked my math several times and re-read the post several time so I think it is close to a

KR> flight test data

2019-04-21 Thread Flesner via KRnet
Our  discussion on wing lift reminded me of our conversations years ago on what is the best "angle of incidence" to set the wing on the KR.  The plans call for 3.5 degrees at the root with a 3.0 degree washout.  Mark L. noted that KR's doing fly-bys seem to be flying extremely nose down and h

Re: KR> Mr. Langeschwische's book

2019-04-21 Thread Chris Kinnaman via KRnet
The first critic's assertion about humongous airspeed and 45 deg angles does not follow from anything actually found in the book. An attempt at assigning a fallacy to the author for which there can be no defense. The critic forgot to include "See how smart I am?" $.02 Chris K On 4/21/2019 7

Re: KR> Mr. Langeschwische's book

2019-04-21 Thread Flesner via KRnet
After our recent discussion on wing lift theory I went looking for a source to buy the book.  When researching a product to buy, with all the sources of information we have now days, I generally pass over the 5 star reviews that say the product is as good as I would expect it to be.  Instead,