IAS vs Groundspeed and tyre limits on takeoff.

[Arkwright]

Hi all,

I'm about to conduct a flight departing from a very high elevation aerodrome and was concerned about tyre limiting speeds.

I don't have access to the performance manuals at the moment, and wondered if there was a "rule of thumb" or table converting pressure elevation and temperature to IAS?

For some background data, the airport elevation is 9200', assume ISA pressure, average day temperatures between 20-25C and a rotate speed of approx 140 kias.

edit: Oh, and a tyre limiting speed of 195kts gs

Thanks