REFLECTOR: Vortex Generators
Brian Michalk
michalk at awpi.com
Tue May 20 07:40:06 CDT 2014
I discovered that too.
I was having controllability issues at the slower speeds, yes using
mostly rudder. I added the lower winglets, and the plane is much easier
to fly on slow final.
It was what I would call a "handfull". Now, it's on rails on final.
On 05/20/2014 06:50 AM, john at velocityaircraft.com wrote:
> Make sure you are getting full rudder throw. They are good down to
> 35kts, ailerons will be very sloppy below 90kts. The SE models do
> better maintaining aileron feel at low speeds but the XL and 173's
> need a lot of rudder.
>
> John
>
> ------------------------------------------------------------------------
> -----Original Message-----
> From: "Brian Michalk" <michalk at awpi.com>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Date: 05/19/14 22:04
> Subject: Re: REFLECTOR: Vortex Generators
>
> When I am alone in the plane, it's about 70 kts.
> As I move the CG forward the plane doesn't stall, it just mushes.
> The only way to stall it is while in a turn.
> As I move CG forward the Vm increases (minimum speed at which I
> can maintain altitude), which I add 10 kts to and use as my
> approach speed.
>
> On 05/19/2014 05:57 PM, Jerry Teitsma wrote:
>>
>> Brian - What is your stall speed?
>>
>> Jerry Teitsma
>>
>> N241JT
>>
>>
>> ------------------------------------------------------------------------
>> *From:* "Laurence Coen" <lwcoen at hotmail.com>
>> *To:* "Reflector" <reflector at tvbf.org>
>> *Sent:* Monday, May 19, 2014 10:09:56 AM
>> *Subject:* Re: REFLECTOR: Vortex Generators
>>
>> Brian,
>>
>> The max forward CG is 115.75". If you are at 115" or less then
>> that's your
>> problem, not something wrong with the plane. If I load 400# plus
>> in the
>> front I still won't reach the forward CG. You should be able to
>> hold the
>> nose up at 70 KIAS.
>>
>> Larry Coen
>> N136LC
>>
>> --------------------------------------------------
>> From: "Brian Michalk" <michalk at awpi.com>
>> Sent: Sunday, May 18, 2014 10:42 PM
>> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>> Subject: REFLECTOR: Vortex Generators
>>
>> > After doing my foreward CG tests, I find that my biggest concern is
>> > running out of elevator authority when flaring to land. Flying
>> in my
>> > buddies V, and also the trainer, I don't recall speeds as high
>> as I am
>> > maintaining on final. At 110mph (96 kts) final, by the time I
>> land, I
>> > suppose I'm down to 100mph, and at forward CG of ... well, I
>> can't find my
>> > spreadsheet at the moment, but it's probably close to 115 inches.
>> >
>> > My question is I am wondering if VG's on the canard will give
>> me some
>> > better elevator authority. I like not having to worry about
>> breaking them
>> > off now, so if the bother is worth it, I'll try them.
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>
> ------------------------------------------------------------------------
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>
>
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