Cirrus Stall horn location question

SixPapaCharlie

SixPapaCharlie

May the force be with you
Joined
Aug 8, 2013
Messages
16,608
Display Name
Display name:
Sixer
This morning I was on the ramp and for whatever reason, I noticed that on the newest model, the stall horn was on the outer portion of the wing, past the "split".

The older model had the horn closer to the root before the split.
image below shows the split and stall horn circled in orange

So the outer portion of the wing is ~3 degrees lower than the inner portion.
So on older models, you will be notified of the stall audibly before on new models.

Why would they reduce the lead time on stall notification on newer models?
Seems you reduce reaction time by putting the stall horn past the split.

attachment.php
 

Attachments

  • stallhorn.jpg
    stallhorn.jpg
    159.4 KB · Views: 138
It doesn't matter. The parachute is going to get pulled as soon as either alarm goes off.
 
I do not know the engineering reason for the port relocation, but both have an adjustable electro-pneumatic(diaphragm) switch in the cockpit. It is a normally open(NO) switch that closes 5-10 kts above stall.
 
Cpt_Kirk said:
It doesn't matter. The parachute is going to get pulled as soon as either alarm goes off.
Click to expand...

FTW......:wonderwoman:


btw....the root should stall first, inboard out, allowing control authority at the ailerons during the beginning of the wing stall. So, the older location should alert first. Anyways, either location has a pressure switch that could be adjusted to sound whenever. :goofy:
 
Last edited:
I just filled that hole with putty so it wouldn't beep at me all the time.
 
hmmmm
If I were to fly inverted, would my stall horn be going off the whole time?
Seems it would and it would stop if I actually stalled.
 
You must log in or register to reply here.
Back
Top