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  #1  
Old 06-18-2019, 01:32 PM
greghughespdx greghughespdx is offline
 
Join Date: Nov 2011
Location: Aurora, OR
Posts: 634
Default Updated Dynon SkyView Software/Settings v15.4.7 for RV-12/12iS published

Van's has published the updated SkyView software and settings for the RV-12 and RV-12iS aircraft to the download page on the Van's Aircraft web site. The new version released today is v15.4.7. The package available from the Van's web site includes both the Dynon software and Van's-provided RV-12 specific settings. RV-12 owners with Dynon SkyView equipment should download the new software/setting package from the Van's web site rather than from Dynon.

RV-12 related changes included in this release (Rev 14 06-18-19):

1) For RV-12iS using a 912iS Sport the .sfg for the fuel pressure sensor no longer needs to be loaded separately. This fuel pressure sensor is now part of the standard Dynon sensor file. Step 7 in the README file was removed and subsequent steps were renumbered.

2) For the RV-12iS an added feature to the latest SkyView software 15.4.7 provides a warning to the pilot if the temperature of the coolant/CHT exceeds 220 deg F and the RPM is below 2500 rpm. For further information read RV-12iS FTS Section III “HOT WEATHER OPERATION.”
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Greg @ Van's Aircraft - Community, Media, Marketing
Van's web site | Instagram | Facebook
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Building RV-8A since Sept 2014 (N88VX reserved)
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XPIO-360
VAF build thread - Flickr photo album - Project Facebook page
Hillsboro, OR (EAA 105)

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  #2  
Old 06-18-2019, 02:18 PM
NinerBikes NinerBikes is online now
 
Join Date: Dec 2018
Location: Granada Hills
Posts: 295
Default

Quote:
Originally Posted by greghughespdx View Post
Van's has published the updated SkyView software and settings for the RV-12 and RV-12iS aircraft to the download page on the Van's Aircraft web site. The new version released today is v15.4.7. The package available from the Van's web site includes both the Dynon software and Van's-provided RV-12 specific settings. RV-12 owners with Dynon SkyView equipment should download the new software/setting package from the Van's web site rather than from Dynon.

RV-12 related changes included in this release (Rev 14 06-18-19):

1) For RV-12iS using a 912iS Sport the .sfg for the fuel pressure sensor no longer needs to be loaded separately. This fuel pressure sensor is now part of the standard Dynon sensor file. Step 7 in the README file was removed and subsequent steps were renumbered.

2) For the RV-12iS an added feature to the latest SkyView software 15.4.7 provides a warning to the pilot if the temperature of the coolant/CHT exceeds 220 deg F and the RPM is below 2500 rpm. For further information read RV-12iS FTS Section III “HOT WEATHER OPERATION.”
It's possible for the coolant to get too hot at or below 2500 rpm on the tarmac? Due to lack of air flow through the radiator, or lack of water pump circulating coolant fast enough?
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  #3  
Old 06-18-2019, 03:01 PM
greghughespdx greghughespdx is offline
 
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Location: Aurora, OR
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Originally Posted by NinerBikes View Post
It's possible for the coolant to get too hot at or below 2500 rpm on the tarmac? Due to lack of air flow through the radiator, or lack of water pump circulating coolant fast enough?
Increasing speed to 2500 RPM to cool the engine is primarily related to creating higher volume of forced air flow through the radiator as is needed more often in high ambient temperature situations.
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Greg @ Van's Aircraft - Community, Media, Marketing
Van's web site | Instagram | Facebook
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Building RV-8A since Sept 2014 (N88VX reserved)
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XPIO-360
VAF build thread - Flickr photo album - Project Facebook page
Hillsboro, OR (EAA 105)

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  #4  
Old 06-18-2019, 03:44 PM
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Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
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Quote:
Originally Posted by greghughespdx View Post
Increasing speed to 2500 RPM to cool the engine is primarily related to creating higher volume of forced air flow through the radiator as is needed more often in high ambient temperature situations.
Won't increased engine speed necessitate more braking action? Matco brakes on the 12 are prone to fading as it is - this becomes a problem with long taxi in a crosswind where one brake is used excessively to control direction. I'd hate to drag brakes to keep ground speed reasonable...
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  #5  
Old 06-18-2019, 03:58 PM
greghughespdx greghughespdx is offline
 
Join Date: Nov 2011
Location: Aurora, OR
Posts: 634
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Originally Posted by Piper J3 View Post
Won't increased engine speed necessitate more braking action? Matco brakes on the 12 are prone to fading as it is - this becomes a problem with long taxi in a crosswind where one brake is used excessively to control direction. I'd hate to drag brakes to keep ground speed reasonable...
The condition is most likely to happen when the aircraft is on the ground in hot conditions and not moving while at idle engine speed, hence not pushing any air through the radiator other than that generated by the propeller. Increasing airflow by turning the prop faster improves cooling. Also, the Dynon software simply enables an alert - There's nothing in the skyview software changes how the engine operates, ambient temperatures, physics or anything else. It's simply an awareness alert for your benefit. Another way to cool the engine of course is to move the aircraft itself through the air: Taxi or fly it.
__________________
Greg @ Van's Aircraft - Community, Media, Marketing
Van's web site | Instagram | Facebook
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Building RV-8A since Sept 2014 (N88VX reserved)
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XPIO-360
VAF build thread - Flickr photo album - Project Facebook page
Hillsboro, OR (EAA 105)

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