The Defence Ministry said on Friday that it was considering upgrading President Jacob Zuma's private jet.
It was reported that the Air Force was planning to supplement its VIP fleet with aeroplanes that usually carry hundreds of passengers.
The Air Force has come under fire for deploying shadow planes on many of Zuma's trips overseas.
The Defence Force told Eyewitness News that it was considering upgrading the president's plane, but that it was too early to confirm anything.
Reports indicated that plans were underway to sign a lease for a second-hand Boeing 777 from the United States.
Compared to the troubled Inkwazi, the Boeing is much bigger and faster.
The upgrade could be due to Zuma's jet breaking down, ongoing maintenance, and the fiasco in which two empty charted planes shadowed the president on a recent trip to the US.