Maximum airspeed while climbing in a hold turbojet is 310 KIAS
The maximum airspeed for a turbojet aircraft while climbing in a hold is 310 knots indicated airspeed (KIAS). This is significantly higher than the maximum airspeed for a turbojet aircraft in a standard hold, which is 265 KIAS. The reason for this difference is that a climb-in hold provides additional obstacle protection area, allowing for greater airspeeds.
So, it is important to note that the above airspeed limitations are based on the FAA's Instrument Procedures Handbook (AIM). The actual maximum airspeed for a specific holding pattern may be different, as it may be specified in the navigational database.
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What is Maximum airspeed while climbing in a hold turbojet