Gear speed: was Re: REFLECTOR: CLEAN SPEED OR JUST SPEED? [heur]

[Scott Derrick]

This brings up a related issue.

Gear Extension speed.

I remember somebody telling me this is dependent on the gear doors.

I would love to be able to increase the speed I can drop the gear.  Its
pretty low compared to my cruise speed.

Which doors are the limiting factor and what would somebody have to do to
increase the speed by 20 knots...

Scott

> On my s (165 kt) 173 RG - I couldn't really tell any difference after I
> installed the gear doors.  But I didn't do any before and after
> measurements
> either.  Just couldn't feel/see any difference in the way it flew or in
> cruise speeds.
>
> Ronnie
>
> ----- Original Message -----
> From: "Tom Martino" <tmartino at troubleshooter.com>
> To: <Jim_Agnew_2 at yahoo.com>; "Velocity Aircraft Owners and Builders list"
> <reflector at tvbf.org>
> Sent: Thursday, February 24, 2005 10:07 AM
> Subject: RE: REFLECTOR: CLEAN SPEED OR JUST SPEED? [heur]
>
>
> I am not exceeding it.  I pull it back.  But I did do initial flutter
> testing ... so other than your fine advice about exceeding VNE, what about
> gear doors?  Are they necessary?
>
> ________________________________
>
> From: reflector-bounces at tvbf.org on behalf of Jim Agnew
> Sent: Thu 2/24/2005 5:57 AM
> To: Velocity Aircraft Owners and Builders list
> Subject: RE: REFLECTOR: CLEAN SPEED OR JUST SPEED? [heur]
>
>
>
> Isn't VNE for the Velocity 200KTS.  In addition exceeding VNE during
> testing
> doesn't seem to be a good idea.
>
> Jim
> --- Al Gietzen <ALVentures at cox.net> wrote:
>
>> Tom;
>>
>>
>>
>> Only reason to have them is to reduce drag - more speed.  I have heard
>> before that they make little difference.  Now what we'd really like you
>> to
>> do is get good cruise speed data w/o them, and then put them on and see
>> what
>> difference it makes. (Always looking for data:-)).
>>
>>
>>
>> Have you verified the IAS with another on-board source, like a GPS?
>> Sounds
>> like it is flying real well.  Marrion would be pleased.
>>
>>
>>
>> Al
>>
>>
>>
>> -----Original Message-----
>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
>> Behalf Of Tom Martino
>> Sent: Wednesday, February 23, 2005 9:29 PM
>> To: reflector at www.tvbf.org
>> Subject: REFLECTOR: CLEAN SPEED OR JUST SPEED?
>>
>>
>>
>> Help me out here guys ... I am test flying ... getting more than 200
>> knots
>> (indicated) at 75% power (and yes, my airspeed indicator, pitot and
>> static
>> system has been calibrated by Denver Avionics).
>>
>>
>>
>> This speed is without main gear doors and inspection plates on the
>> underside
>> of the wings.
>>
>>
>>
>> Naturally, I want to cover up the wing bolt holes ... but what about
>> gear
>> doors?
>>
>>
>>
>> This may sound silly ... but if I'm getting this much speed now, do I
>> need
>> them?
>>
>>
>>
>> Is there a reason (other than speed) to have them?
>>
>>
>>
>> Any feedback willl be most appreciative.
>>
>>
>>
>> Tom Martino
>>
>> N173EX
>>
>>
>>
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>
>
> =====
> James F. Agnew
> Jim_Agnew_2 at Yahoo.Com
> Tampa, FL
> Velocity 173 Elite Aircraft Completed & Flying
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>
>
>
>
> --------------------------------------------------------------------------------
>
>
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