A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Soaring
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

SN10 Question



 
 
Thread Tools Display Modes
  #1  
Old June 14th 21, 01:40 AM posted to rec.aviation.soaring
JulietUniform
external usenet poster
 
Posts: 7
Default SN10 Question

After performing a leak check on my TE system, my SN10 now sounds a continuous tone after power up. (On the ground, haven’t tried in the air) It is not in speed to fly mode but is in vario mode. Prior to this it was always “silent” after start up. Have I possibly damaged an internal sensor that requires sending it in to Ilec? I have updated it to latest version 2.47.
John U.

Ads
  #2  
Old June 14th 21, 02:37 PM posted to rec.aviation.soaring
John Sinclair[_5_]
external usenet poster
 
Posts: 88
Default SN10 Question

On Sunday, June 13, 2021 at 5:40:33 PM UTC-7, JulietUniform wrote:
After performing a leak check on my TE system, my SN10 now sounds a continuous tone after power up. (On the ground, haven’t tried in the air) It is not in speed to fly mode but is in vario mode. Prior to this it was always “silent” after start up. Have I possibly damaged an internal sensor that requires sending it in to Ilec? I have updated it to latest version 2.47.












Tell me about the “leak check” you performed? The way I do it is to remove all instruments except the airspeed indicator, then apply syringe pressure at the total energy probe. Pump it up to 100 knots as seen on the airspeed, then watch it for at least :01 minute without any drop in airspeed. Some variometers won’t tolerate that kind of pressure.
There is a good SN-10b on Glider Source with remote control and upload brick for $800 bucks, if necessary.
JJ
  #3  
Old June 14th 21, 04:30 PM posted to rec.aviation.soaring
John Sinclair[_5_]
external usenet poster
 
Posts: 88
Default SN10 Question

On Monday, June 14, 2021 at 6:37:25 AM UTC-7, John Sinclair wrote:
On Sunday, June 13, 2021 at 5:40:33 PM UTC-7, JulietUniform wrote:
After performing a leak check on my TE system, my SN10 now sounds a continuous tone after power up. (On the ground, haven’t tried in the air) It is not in speed to fly mode but is in vario mode. Prior to this it was always “silent” after start up. Have I possibly damaged an internal sensor that requires sending it in to Ilec? I have updated it to latest version 2.47.

Tell me about the “leak check” you performed? The way I do it is to remove all instruments except the airspeed indicator, then apply syringe pressure at the total energy probe. Pump it up to 100 knots as seen on the airspeed, then watch it for at least :01 minute without any drop in airspeed. Some variometers won’t tolerate that kind of pressure.
There is a good SN-10b on Glider Source with remote control and upload brick for $800 bucks, if necessary.
JJ

Oops, I use a separate airspeed when I do a leak test. If you are using the installed airspeed, you need to switch the total energy line over to the pressure side of your airspeed indicator.
  #4  
Old June 14th 21, 08:55 PM posted to rec.aviation.soaring
JulietUniform
external usenet poster
 
Posts: 7
Default SN10 Question

Thanks John,
Yes, I isolated the TE system and used a very small “mini” aquarium pump. I’m afraid I have damaged an internal sensor. In “vario mode” it sounds a constant tone. In “STF” mode it is silent and increasing the MC setting causes the vario needle to move down (as it should?) with no sound.
JU
  #5  
Old June 15th 21, 12:14 AM posted to rec.aviation.soaring
Karl Striedieck[_2_]
external usenet poster
 
Posts: 146
Default SN10 Question

On Monday, June 14, 2021 at 3:55:36 PM UTC-4, JulietUniform wrote:
Thanks John,
Yes, I isolated the TE system and used a very small “mini” aquarium pump. I’m afraid I have damaged an internal sensor. In “vario mode” it sounds a constant tone. In “STF” mode it is silent and increasing the MC setting causes the vario needle to move down (as it should?) with no sound.
JU


My SN-10 always sounds a tone when I turn it on and the needle points to 400 fpm up. Works normally in flight. My settings are for relative netto.

KS
  #6  
Old June 15th 21, 01:01 AM posted to rec.aviation.soaring
JulietUniform
external usenet poster
 
Posts: 7
Default SN10 Question

Thank you Mr. Striedieck. Hopefully I have not damaged anything. Prior to doing the leak test it never made a continuous tone when I turned it on. It would “beep” then be silent. Now, the tone is always on.
John U.

 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
SN10 K Soaring 0 September 15th 12 02:15 AM
SN10 Startup Question YourNameHere Soaring 2 October 17th 11 01:56 PM
SN10 USB question Tuno Soaring 2 August 22nd 11 02:33 PM
Ilec SN10 question Dan Goldman Soaring 0 February 20th 11 11:07 PM
Ilec SN10 question John Ferguson Soaring 3 May 29th 07 05:11 AM


All times are GMT +1. The time now is 03:40 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Copyright 2004-2021 AviationBanter.
The comments are property of their posters.