X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 21 Oct 2013 15:27:03 -0400 Message-ID: X-Original-Return-Path: Received: from mail-pa0-f53.google.com ([209.85.220.53] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6549546 for lml@lancaironline.net; Mon, 21 Oct 2013 15:23:56 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.53; envelope-from=keith.smith@gmail.com Received: by mail-pa0-f53.google.com with SMTP id kq14so8553762pab.12 for ; Mon, 21 Oct 2013 12:23:22 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.66.26.49 with SMTP id i17mr4229089pag.148.1382383402513; Mon, 21 Oct 2013 12:23:22 -0700 (PDT) Received: by 10.70.48.66 with HTTP; Mon, 21 Oct 2013 12:23:22 -0700 (PDT) In-Reply-To: References: X-Original-Date: Mon, 21 Oct 2013 15:23:22 -0400 X-Original-Message-ID: Subject: Re: [LML] Re: Stall speeds for LNC2 From: Keith Smith X-Original-To: Lancair Mailing List Content-Type: multipart/alternative; boundary=bcaec52be9b1a67caf04e9453753 --bcaec52be9b1a67caf04e9453753 Content-Type: text/plain; charset=ISO-8859-1 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, 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" : > > >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 > > > > > > > > > > -- > For archives and unsub > http://mail.lancaironline.net:81/lists/lml/List.html > > --bcaec52be9b1a67caf04e9453753 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
The only stall speed I know for my airplane is 61kias in t= he 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, unles= s you're using KCAS?

Small tail, 40 flaps here.

Keith


On M= on, Oct 21, 2013 at 12:56 PM, <Sky2high@aol.com> wrote:
Randy,
=A0
Interesting.
=A0
In the pattern, level,=A0lo pwr=A0and dirty, 1.3 x 61=3D79 KIAS.=A0=20 A 30 degree banked turn raises the stall speed about 4 kts.=A0 Not much of = a=20 margin if operating at or below 85 KIAS.
=A0
Engine failure on take off after flaps and gear cleaned up - level fli= ght -=20 1.3 x 72 =3D 93 and a 30 degree turn raises that to 98 KIAS.=A0 I think tha= t's=20 why I liked to climb out at an excess of 130 KIAS.
=A0
Scott
=A0
=A0
In a message dated 10/21/2013 11:34:57 A.M. Central Daylight Time,=20 marv@lancair.net = writes:
Posted for "Randy Hartman"=20 <randy@ao= aircrafters.com>:

>Fellow 360 drivers,
>=20
>
>
> I have over 500 hours on my Lancair 360 (N360D= E)=20 now and just recently did
> my first stalls. (I know, I know, I sho= uld=20 have done them a long time ago,
> but...)
>
>
>= =20
> Here are the numbers:
>
>
>
> Altitud= e =3D=20 8,500, OAT =3D 65 DF
>
>
>
> Clean
>=20
>=A0=A0=A0=A0=A0=A0=A0=A0Power=20 OFF=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A072=20 Kts=A0=A0(right wing
> drooping, left wing fall off)
>=20
>=A0=A0=A0=A0=A0=A0=A0=A0Power ON (13"=20 MAP)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=20 69.5 Kts (slight break/buffet)
>
>
>
> Dirty (= full=20 flaps, gear down)
>=20
>=A0=A0=A0=A0=A0=A0=A0=A0Power=20 OFF=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A067.8=20 Kts (slight
> break/buffet)
>=20
>=A0=A0=A0=A0=A0=A0=A0=A0Power ON (13"=20 MAP)=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=20 60.8 Kts (slight break/buffet)
>
>
>
> Because= of=20 my own personal respect for, and healthy fear of, the airplane
> an= d the=20 unknown results of stalls in this airplane, I approached the stall
>= ;=20 speeds very slowly and deliberately, taking care to keep the ball=20 centered.
> The numbers taken were at the first, slightest feel of = a=20 stall.=A0=A0I have it
> all on video.
>
>
>=20
> I am wondering what others have experienced.=A0=A0Are these=20 numbers unusual?
> High, low, etc.?
>
>
>
&= gt;=20 Points of interest regarding N360DE:
>
>=20 .=A0=A0=A0=A0=A0=A0=A0=A0 The tail is neither "large"=20 or "small".=A0=A0It is a one-off
> modification that is a= little=20 larger than the original.=A0=A0(Designed and built
> by Chuck=20 Brenner prior to my ownership.)
>
>=20 .=A0=A0=A0=A0=A0=A0=A0=A0 The flaps are non-standard=20 for the 360.=A0=A0They are hinged below the
> bottom surface of=20 the wing on three pivot points about 1.25" below. (Also
> desi= gned and=20 built by Chuck Brenner prior to my ownership.)
>
>=20 .=A0=A0=A0=A0=A0=A0=A0=A0 Cowling has no lower bulge=20 for the RSA.=A0=A0The RSA is mounted on the
> front of the oil=20 pan. (Cowlings by Chuck Brenner.)
>
>=20 .=A0=A0=A0=A0=A0=A0=A0=A0 I have 10" stall strips=20 installed on the leading edge of the wings
> about 12" from th= e side of=20 the fuselage.
>
>=20 .=A0=A0=A0=A0=A0=A0=A0=A0 When trimmed up, she flies=20 extraordinarily stable, the faster the
> more stable
>
&g= t;=20 .=A0=A0=A0=A0=A0=A0=A0=A0 Very responsive in pitch,=20 which I believe is normal for the 360 -
> but I have not flown in a= ny=20 other 360/320/235=A0=A0
>
>
>
> Randy=20 Hartman
>
> Alpha Omega Aircrafters
>
> (319)= =20 360-9775
>
>
>



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