REFLECTOR: Velocity video

[lawrence epstein]

A canard stall speed <55 knots for an SE is much lower than I would expect. I thought that the standard wing/fuselage was expected to mush around 70 and the large wing/standard fuselage ("173") @ 60 knots. AM I confusing knots with MPH?

Is it possible that this is pitot error at low speed/hight AOA?

Larry Epstein
173 FGE



Date: Wed, 30 Jan 2008 22:36:36 -0600
From: aminetech at bluefrog.com
To: reflector at tvbf.org
Subject: Re: REFLECTOR: Velocity video




OK.  I should begin with the pattern as I feel everything adds up
when it comes to a good landing.  First of all, keep the pitch trimmed
for hands off throughout the final leg.  Speed brakes aren't needed. 
If you're high on final, just pull back on the stick and slow down to stall
speed.  The initial nose up attitude will make it seem like you're
going to fly to the next county, but in several seconds you will be pleasantly
surprised to be on the glide slope.  My power off stall is a mush,
so I barely notice anything when stalling on final.  However an observer
on the ground told me it looked like I was falling out of the sky. 
My stall speed is 60 kn and I have found no problems being at 60 kn on
short final/round out.  After round out I let it sink down, holding
it a ft or less off the ground.  At 55 kn, the mains slowly sink and
gently touch down with no pilot input while the canard keeps flying (guess
that is a deep stall, but not a problem when you're close to the ground). 
Then I nudge the stick forward to get the nose coming down and it is real
easy to lower it gently to the ground.

As far as the canard stalling and the nose slamming the ground, I have
had many hard nose landings at higher speeds.  I think the main cause
is not having the pitch trimmed for hands off at all times during the landing
procedure.  The trim spring greatly limits how much you can move the
elevator and makes it difficult to let the canard down easy, making it
seem like the canard stalled when in fact you just couldn't pull back as
fast or much as necessary.  I will caution when in LEVEL flight, not
to trim the pitch for hands off at a speed of less than 80 kn as that could
result in a deep stall.  However when in the flare, trimming at slower
speeds is OK, since you want the mains to stall first.

Keep in mind that I fly an SERG.  The XLs may behave differently.
John
cgputney at peoplepc.com wrote:
 John Dibble, please detail
your landing flare procedure for us!    Thanks.

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

From:
John
Dibble

To: Velocity
Aircraft Owners and Builders list

Sent: Sunday, January 27, 2008 9:31
AM

Subject: Re: REFLECTOR: Velocity video
 Steve,
It took me almost 400 hours of flying to learn that not only can I land
my SERG in a flare, but that it is 5 times easier and 10 times softer landing.
John
steve korney wrote:

Guess
that dispelled the myth that you can't land a Velocity in a flair............
Best... Steve

 

From: johnt at comp-sol.com

To: reflector at tvbf.org

Date: Sat, 26 Jan 2008 10:35:07 -0600

Subject: Re: REFLECTOR: Velocity video



This
is one of those 'big smile' videos!

 

Thanks for sharing.

 

John


From: reflector-bounces at tvbf.org
[reflector-bounces at tvbf.org] On Behalf Of Al Gietzen [ALVentures at cox.net]

Sent: Friday, January 25,
2008 10:54 PM

To: reflector

Subject: REFLECTOR: Velocity
video


For
those who like; I’ll share some video made by my son (with my 5 yr old
grandson who’s nuts about airplanes).  It includes a takeoff, flyby,
touch and go, and landing; lasts about 8 minutes, and is 20MB non-streaming,
so high speed access will certainly be a plus.




http://photofu.com/darryl/Velocity_Vignette.wmv



Enjoy;



Al




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