Sign in to follow this  
scottb613

DH or DA set in Radar Altimeter ?

Recommended Posts

Hi Folks,

 

Re: Lear 35A

 

I know where the button is to turn the Radar Altimeter on - but can you set DH or DA on it ?

 

Thanks,

Scott

Share this post


Link to post
Share on other sites
Help AVSIM continue to serve you!
Please donate today!

Hi Scott

The radar altimeter give the elevation over the surface. Then this is the decision height (DH)  :wink: 

  • Upvote 1

Share this post


Link to post
Share on other sites

Hi Pascal,

 

Thanks for the response... Yeah - got that... I was reading the AFM and part of the descent checklist was to set the DH or DA into the Radar Altimeter - I just assumed you would get a tone or verbal call out when DH or DA was reached... I didn't know if that was modeled...

 

Regards,
Scott

Share this post


Link to post
Share on other sites

 

 


I just assumed you would get a tone or verbal call out when DH or DA was reached... I didn't know if that was modeled.

 

Yes we have a tone and a Yellow light illuminates when reaching the DH.  :smile:

Very useful in order to decide if we continue the landing or if  missed approach procedure (MAP) would apply

Pascal

Share this post


Link to post
Share on other sites

Hi Folks,

 

Sorry - I still must be doing something wrong - what do I need to do to get the "DH" light on the Attitude Indicator to illuminate ???

 

Regards,
Scott

Share this post


Link to post
Share on other sites

Hi Folks,

 

Sorry - I still must be doing something wrong - what do I need to do to get the "DH" light on the Attitude Indicator to illuminate ???

 

Regards,

Scott

Scott,

If the a/c is powered up and the RA power switch is on, I don't think there is anything else you need to do besides dialing in an altitude on the radar altimeter that is in front of the copilot. Does the test button on this RA work (the light on the RA unit itself should come on)?  BTW, I have never gotten a tone at DH, only the light on the attitude indicator.

Al

Share this post


Link to post
Share on other sites

Hi Al,

 

Doh - gauge on copilot side - LOL - THAT's what I was missing - let me look...

 

Thanks !!!

 

Regards,

Scott

Share this post


Link to post
Share on other sites

 

 


BTW, I have never gotten a tone at DH, only the light on the attitude indicator.

 

That's right, I was confusing with the ALT tone alert when reaching the DH or MDH  :wink:

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this