From 0db099d08cf13b8913e0b034c73c08081f9a5fa7 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Sat, 23 Apr 2022 11:54:45 +1000
Subject: [PATCH] mavextra: added airspeed_tas method
---
mavextra.py | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mavextra.py b/mavextra.py
index ee7515a5..cccd2745 100644
--- a/mavextra.py
+++ b/mavextra.py
@@ -657,6 +657,10 @@ def eas2tas(alt_m, groundtemp=25.0):
eas2tas_squared = SSL_AIR_DENSITY / (pressure / (ISA_GAS_CONSTANT * tempK))
return sqrt(eas2tas_squared)
+def airspeed_tas(VFR_HUD,GLOBAL_POSITION_INT):
+ '''airspeed as true airspeed from VFR_HUD and GLOBAL_POSITION_INT'''
+ return eas2tas(GLOBAL_POSITION_INT.alt*0.001) * VFR_HUD.airspeed
+
def airspeed_ratio(VFR_HUD):
'''recompute airspeed with a different ARSPD_RATIO'''
from . import mavutil
--
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