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  #1  
Old 08-04-2019, 03:20 PM
ljpgrif ljpgrif is offline
 
Join Date: Jul 2018
Location: Wynne
Posts: 7
Default Flaps speed

Purchased a Rv7a recently with a Garmin g3x and is setup for Mph. All the planes that I have experienced shows in Knots.
The question I'm asking is what the Rv7a spec is rated as. Is the flap max extended speed 110 at 20 degrees in knots or mph. It makes a difference......

Thanks
Larry
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  #2  
Old 08-04-2019, 03:29 PM
RV8JD's Avatar
RV8JD RV8JD is offline
 
Join Date: Jan 2005
Posts: 959
Default MPH

From the construction manual:



Oh, and buy one of these for the RV-7/7A:

https://shop.vansaircraft.com/cgi-bi...oduct=fd_plans
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Carl N.
Arlington, WA (KAWO)
RV-8, 790 Tach Hours
(Pic 1),(Pic 2)
- Out with the Old, In with the New
(Pic)
RV-8, 1938 Tach Hours (Pic 1),(Pic 2) - Sold

Glasflugel Standard Libelle 201B - Sold
Rolladen-Schneider LS1-f - No longer owned

Last edited by RV8JD : 08-04-2019 at 03:31 PM.
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  #3  
Old 08-04-2019, 03:35 PM
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B Cunningham B Cunningham is offline
 
Join Date: Jan 2005
Location: Louisville, KY
Posts: 244
Default My 2 cents

Vfe is 87kts. The white arc is 50-87 kts.
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Ben Cunningham
RV7 N701VF
Bowman Field, Louisville, KY
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  #4  
Old 08-04-2019, 04:21 PM
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JohnInReno JohnInReno is offline
 
Join Date: Jun 2005
Location: Prescott Valley/Chandler AZ
Posts: 351
Default knots

Quote:
Originally Posted by ljpgrif View Post
Purchased a Rv7a recently with a Garmin g3x and is setup for Mph. All the planes that I have experienced shows in Knots.
...
Thanks
Larry
Have you considered changing the g3x to display knots?
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RV-9A N946PM 600+ hours since 2013
Nevada/Arizona
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  #5  
Old 08-04-2019, 05:34 PM
ljpgrif ljpgrif is offline
 
Join Date: Jul 2018
Location: Wynne
Posts: 7
Default Flap speed

I am considering to change to knots, but had to been sure if the vans website was in mph or knots. For a aircraft company, never seen it in mph, always in knots.
Vans spec shows 110 20 degrees 100 45 degrees but shows no mph or knots.

Thanks everyone for the info......
Larry
N687VR
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  #6  
Old 08-05-2019, 11:51 AM
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RV8JD RV8JD is offline
 
Join Date: Jan 2005
Posts: 959
Default Vne (Redline)

As a new RV-7A owner, you may not be aware that Van's now states that Vne (Redline) is now stated in terms of True Airspeed (and not Indicated Airspeed).

So for the RV-7/7A, Vne is 230 MPH TAS (or 200 KTAS).

Note that with the Garmin G3X you can input Vne in terms of TAS, and the previous owner may have done that already.

Van's really needs to issue a Service Letter to update that critical safety-of-flight information for the older models, like they did for the RV-14s (by SL) and RV-12s (by POH).
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Carl N.
Arlington, WA (KAWO)
RV-8, 790 Tach Hours
(Pic 1),(Pic 2)
- Out with the Old, In with the New
(Pic)
RV-8, 1938 Tach Hours (Pic 1),(Pic 2) - Sold

Glasflugel Standard Libelle 201B - Sold
Rolladen-Schneider LS1-f - No longer owned
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  #7  
Old 08-05-2019, 03:18 PM
SPX SPX is offline
 
Join Date: Dec 2018
Location: San Diego
Posts: 403
Default

Quote:
Originally Posted by RV8JD View Post
As a new RV-7A owner, you may not be aware that Van's now states that Vne (Redline) is now stated in terms of True Airspeed (and not Indicated Airspeed).
I was unaware of that... is there something in written form that states that, coming from Vans?

Secondly... I question WHY?
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RV-9A, Fallbrook Ca (L18)
Paid, Jan 2020
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  #8  
Old 08-05-2019, 03:54 PM
Desert Rat Desert Rat is offline
 
Join Date: Aug 2018
Location: 50-50 Wichita KS & Scottsdale AZ
Posts: 327
Default

https://www.vansaircraft.com/wp-cont...1/hp_limts.pdf
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Terry Shortt
AGI, CFI, CFII, MEI, A&P, Janitor
RV7 Empennage & Wing done
Fuselage in process
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https://eaabuilderslog.org/?blprojec...t=all&listcat=
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  #9  
Old 08-05-2019, 05:40 PM
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RV8JD RV8JD is offline
 
Join Date: Jan 2005
Posts: 959
Default

Quote:
Originally Posted by SPX View Post
I was unaware of that... is there something in written form that states that, coming from Vans?

Secondly... I question WHY?
Van's restated Vne in terms of TAS several years ago to ensure that proper flutter margins exist at altitude.

Although they published the "Flying High and Fast" article awhile back, that is not widely disseminated and certainly doesn't take the place of a Service Letter or Service Bulletin. They have never published a Service Letter for the older models like they have for the RV-14s, and changed the POH's for the RV-12s. They need to do that.

A table based on the Standard Atmosphere:



Here is a nice visual of where the 230 MPH TAS Vne is in terms of IAS at 9800 feet, from a screenshot of my Dynon SkyView Touch (SVT) in my RV-8. It does limit the downhill performance of the airplane.

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Carl N.
Arlington, WA (KAWO)
RV-8, 790 Tach Hours
(Pic 1),(Pic 2)
- Out with the Old, In with the New
(Pic)
RV-8, 1938 Tach Hours (Pic 1),(Pic 2) - Sold

Glasflugel Standard Libelle 201B - Sold
Rolladen-Schneider LS1-f - No longer owned

Last edited by RV8JD : 08-05-2019 at 06:02 PM.
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