REFLECTOR: What are you working on?

Glenn Babcock glennbabcock at roadrunner.com
Wed Jun 6 19:24:52 CDT 2012


Richard,

Sounds like you are making plenty of power. If so, the difference may be drag-related. I don't have a belly scoop, I have downdraft cooling with NACA scoops. Maybe that's contributing?

Also, is the incidence on your strakes to spec?

BTW, my ailerons are flush to the wing. In cruise the elevator trailing edge is slightly up. 

I'm not sure what else to suggest. Where are you based?

Regards,
Glenn

On Jun 6, 2012, at 7:05 PM, "Richard J. Gentil" <richard at naples-air-center.com> wrote:

> Glenn,
> 
> MP is half inch more then the altimeter setting on the deck due to the belly scoop I use.  (The intake manifold faces in the direction of the prop and I could not get 3" scat hose from the runner to the intake.) the fuel flow is around 19gph on climb out. 
> 
> Richard 
> 
> Sent from my iPhone 4 Classic
> 
> On Jun 6, 2012, at 7:43 PM, Glenn Babcock <glennbabcock at roadrunner.com> wrote:
> 
>> Richard,
>> 
>> I doubt 200 lbs would account for the difference. I don't see a large drop in airspeed when loaded. 
>> 
>> Do you know what your manifold pressure and fuel flow were?
>> 
>> Regards,
>> Glenn
>> 
>> On Jun 6, 2012, at 2:00 PM, "Richard J. Gentil" <richard at naples-air-center.com> wrote:
>> 
>>> Hey Glenn,
>>> 
>>> I'm 200lbs heavier. 
>>> 
>>> Richard 
>>> 
>>> Sent from my iPhone 4 Classic
>>> 
>>> On Jun 6, 2012, at 2:39 PM, Glenn Babcock <glennbabcock at roadrunner.com> wrote:
>>> 
>>>> Richard,
>>>> 
>>>> How heavy is it?  I have an SERG, 200hp IO360 with MT, VGs and no paint. Flight testing at Sebastian in the summer (no VGs) I hit 200kts TAS at 1000 ft level. I was turning 2600 rpm WOT. 
>>>> 
>>>> Nowadays I cruise at 170kts TAS up to 10,000.  At 15,000 that drops to low 160's. My empty weight is 1380. 
>>>> 
>>>> Regards,
>>>> 
>>>> Glenn
>>>> 
>>>> 
>>>> 
>>>> On Jun 6, 2012, at 1:01 PM, "Richard J. Gentil" <richard at naples-air-center.com> wrote:
>>>> 
>>>>> Steve and Scott,
>>>>> 
>>>>> Radar power w/2,700rpm 
>>>>> 
>>>>> I checked the speed at 1,000, 3,500, and 6,500 feet. 
>>>>> 
>>>>> I used dual OAT probes, dual indicated air speeds gauges, three GPS receivers and an E6B to verify the numbers flying a closed course. 
>>>>> 
>>>>> The plane is loaded so it is heavy, it is not yet painted and it has VG's on it. I was hoping for 185 to 190kts after I paint it with the 210-215hp engine but I am no where near that and paint is only a couple of kts. 
>>>>> 
>>>>> Richard 
>>>>> 
>>>>> Sent from my iPhone 4 Classic
>>>>> 
>>>>> On Jun 6, 2012, at 12:56 PM, steve korney <s_korney at hotmail.com> wrote:
>>>>> 
>>>>>> Is that GPS, Indicated, or True air speed... What altitude...?
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> Steve 
>>>>>> 
>>>>>> Date: Wed, 6 Jun 2012 09:59:34 -0600
>>>>>> From: scott at tnstaafl.net
>>>>>> To: reflector at tvbf.org
>>>>>> Subject: Re: REFLECTOR: What are you working on?
>>>>>> 
>>>>>> I'm not sure what you expected but I don't think you have enough HP to go that fast.  And its certainly not slower than an FG!
>>>>>> 
>>>>>> Scott
>>>>>> 
>>>>>> -------- Original Message --------
>>>>>> Subject: Re: REFLECTOR: What are you working on?
>>>>>> From: Richard J. Gentil <richard at naples-air-center.com>
>>>>>> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
>>>>>> Date: 06/06/2012 09:47 AM
>>>>>> I have recently flown off my restriction on my IO-390-X MT SERG but have hit a wall at 170kts which I cannot seem to break through. I recently went to the factory and spent a fantastic morning with John and Scott was they went through the bird and Scott even took it up for a flight. He commented that it climbs really well, just that it is slower then an FG. 
>>>>>> 
>>>>>> I turned up the ailerons two full turns so they are about an 1/8 of an inch up vs being an 1/8 down when they stick was in the middle, it helped set my elevators so they too now sis a couple of degrees up from neutral but still cannot get past 170kts in level flight. 
>>>>>> 
>>>>>> I did have John come visit me last week and we completed his MEI so he is ready for all of you to do your checkouts on the V-Twin! So get on the phone and order your kits!!
>>>>>> 
>>>>>> Richard 
>>>>>> 
>>>>>> Sent from my iPhone 4 Classic
>>>>>> 
>>>>>> On Jun 6, 2012, at 10:00 AM, Reiff Lorenz <Reiff at lorenz.com> wrote:
>>>>>> 
>>>>>>  
>>>>>> 
>>>>>> The Reflector has been quiet this week. Hopefully that means that everyone is busy flying or building.
>>>>>> 
>>>>>>  
>>>>>> 
>>>>>> I'd love to hear what the Velocity community is working on. If your bird is in the air tell us where you're flying.
>>>>>> 
>>>>>>  
>>>>>> 
>>>>>> I've been spending my time on the wings; aileron torque tubes, wiring for nav/pos/strobe lights, and final fitting of the rudders. I'm trying to complete all the wing tasks that can be done without them attached to the fuselage.
>>>>>> 
>>>>>>  
>>>>>> 
>>>>>> Reiff Lorenz, Dayton, OH
>>>>>> 
>>>>>> Velocity XL-RG, 33% complete
>>>>>> 
>>>>>>  
>>>>>> 
>>>>>>  
>>>>>> 
>>>>>> _______________________________________________
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>>>>>> 
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>>>>>> 
>>>>>> 
>>>>>> _______________________________________________
>>>>>> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>>>>>> 
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>>>>>> 
>>>>>> -- 
>>>>>> He who knows others is wise;
>>>>>> He who know himself is enlightened.
>>>>>> Lao-tzu
>>>>>> 
>>>>>> _______________________________________________ To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector Visit the gallery! www.tvbf.org/gallery user:pw = tvbf:jamaicangoose Check new archives: www.tvbf.org/pipermail Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>>>>> _______________________________________________
>>>>>> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>>>>>> 
>>>>>> Visit the gallery!  www.tvbf.org/gallery
>>>>>> user:pw = tvbf:jamaicangoose
>>>>>> Check new archives: www.tvbf.org/pipermail
>>>>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>>>> _______________________________________________
>>>>> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>>>>> 
>>>>> Visit the gallery!  www.tvbf.org/gallery
>>>>> user:pw = tvbf:jamaicangoose
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>>>> _______________________________________________
>>>> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>>>> 
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>>> _______________________________________________
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>>> 
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>> _______________________________________________
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>> 
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> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
> 
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
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