lml@lancaironline.net Mailing List Archive

Over the years I have made it a practice to turn base with half flap and 100 kts. or so, then turning final at roughly 90 to 95 kts. When I have the runway made down comes full flap, ease the power and start the flair so that at 1/8 inch off the runway the airplane stops flying and squeeks on. My stall speed with gear and half flap is in the low 60's but I don't like to get near that speed. I suppose it is my old Navy habits but I keep it close in on the downwind and base. There is no sense to being wide abeam and strung out on a long final.

On take off I keep the nose down and cleaned up I'm near 135 to 140 kts by the end of the runway (5000"), the up and off I go.

George Shattuck

LNC2, 1500+ hrs. small tail, 1989 kit

----- Original Message -----

From: Keith Smith

To: lml@lancaironline.net

Sent: Monday, October 21, 2013 3:27 PM

Subject: Re: [LML] Re: Stall speeds for LNC2

The only stall speed I know for my airplane is 61kias in the landing config, power off. That's the only stall I've performed or intended to perform. Not sure why mine is 6-7kts lower than yours, unless you're using KCAS?

Small tail, 40 flaps here.

Keith

On Mon, Oct 21, 2013 at 12:56 PM, <Sky2high@aol.com> wrote:

Randy,

Interesting.

In the pattern, level, lo pwr and dirty, 1.3 x 61=79 KIAS. A 30 degree banked turn raises the stall speed about 4 kts. Not much of a margin if operating at or below 85 KIAS.

Engine failure on take off after flaps and gear cleaned up - level flight - 1.3 x 72 = 93 and a 30 degree turn raises that to 98 KIAS. I think that's why I liked to climb out at an excess of 130 KIAS.

Scott

In a message dated 10/21/2013 11:34:57 A.M. Central Daylight Time, marv@lancair.net writes:

Posted for "Randy Hartman" <randy@aoaircrafters.com>:

>Fellow 360 drivers,
>
>
>
> I have over 500 hours on my Lancair 360 (N360DE) now and just recently did
> my first stalls. (I know, I know, I should have done them a long time ago,
> but...)
>
>
>
> Here are the numbers:
>
>
>
> Altitude = 8,500, OAT = 65 DF
>
>
>
> Clean
>
>        Power OFF                                  72 Kts  (right wing
> drooping, left wing fall off)
>
>        Power ON (13" MAP)               69.5 Kts (slight break/buffet)
>
>
>
> Dirty (full flaps, gear down)
>
>        Power OFF                                  67.8 Kts (slight
> break/buffet)
>
>        Power ON (13" MAP)               60.8 Kts (slight break/buffet)
>
>
>
> Because of my own personal respect for, and healthy fear of, the airplane
> and the unknown results of stalls in this airplane, I approached the stall
> speeds very slowly and deliberately, taking care to keep the ball centered.
> The numbers taken were at the first, slightest feel of a stall.  I have it
> all on video.
>
>
>
> I am wondering what others have experienced.  Are these numbers unusual?
> High, low, etc.?
>
>
>
> Points of interest regarding N360DE:
>
> .         The tail is neither "large" or "small".  It is a one-off
> modification that is a little larger than the original.  (Designed and built
> by Chuck Brenner prior to my ownership.)
>
> .         The flaps are non-standard for the 360.  They are hinged below the
> bottom surface of the wing on three pivot points about 1.25" below. (Also
> designed and built by Chuck Brenner prior to my ownership.)
>
> .         Cowling has no lower bulge for the RSA.  The RSA is mounted on the
> front of the oil pan. (Cowlings by Chuck Brenner.)
>
> .         I have 10" stall strips installed on the leading edge of the wings
> about 12" from the side of the fuselage.
>
> .         When trimmed up, she flies extraordinarily stable, the faster the
> more stable
>
> .         Very responsive in pitch, which I believe is normal for the 360 -
> but I have not flown in any other 360/320/235
>
>
>
> Randy Hartman
>
> Alpha Omega Aircrafters
>
> (319) 360-9775
>
>
>

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