Hello guys,
This question has been hurting my brain for a while
so if anyone can answer this or rather help me to understand it I would be much appreciated.
I understand the relationship between IAS, TAS, GS, Wind component.
At sea level, IAS is equal to TAS (Forgetting any pressure or instrument errors in the ASI)
Also TAS + or - Head/Tail wind = Groundspeed
If we sit on the runway in our aircraft with a 50 knot headwind then the IAS will read 50 knots even though we are stationary.
If airborne we have an aircraft speed of 45knots with a headwind of 50 knots then 45kts-50kts=-5 i.e a negative groundspeed, moving backwards with reference to the ground. There are some cool videos of this on youtube.
My question is, how could we get to a TAS 45kts in a 50 kt headwind?
Assuming ISA conditions surely the IAS would only ever be a minimum of 50 knots just like on the runway.
I'm sure this is a simple problem but I think I may be overthinking it!?
Your help would be appreciated.