F-35 Cancelled, then what ?

[SpazSinbad]

East of Suez

From the main NAO PDF report there is this quote:

"...3.10 An important enabler of the UK’s STOVL Carrier Strike capability will be the ability to conduct Ship-borne Rolling Vertical Landings (SRVL). This landing technique will be necessary where a conventional vertical landing is less likely to be possible without jettisoning large weapons or fuel load when in hot, humid or low pressure weather conditions. [East of Suez when youse fall off the edge - there be dragons?] At present the technology is not proven with redesigns required to the carrier deck and aircraft software. The capability will be required for operations by 2020 and the Department included a provision to complete development as part of the cost of reverting to STOVL. The Department is confident it will develop the technique within the required timescale...."

I have seen many references to "East of Suez" and "hot humid conditions" in reference to the apparent inability of F-35B to do VLs according to KPP requirement (hence SRVL). [Otherwise for purposes of the KPP the F-35B does meet the requirements.] It seems to me that everyone in the UK knows what the temperature referred to means - would someone let me know what these 'East of Suez' conditions are please? All temps etc. would be at sea level or whatever deck height for CVF is appropriate. Thanks.