What is the difference between a Mark 4 or 5 and a Mark 3 Jet Provost?
The Mark 4 and Mark 5 Jet Provost have the later more powerful version of the Viper engine which delivers 2450 lbs of thrust compared with 1750 lbs of the Mark 3 aircraft. This 40% increase in power turned the Jet Provost from a slightly underpowered trainer into a sprightly much faster aircraft. The Mark 4 and 5 have a cruising speeds of 220 – 240 kts compared to the 165 kts of the Mark 3. Climb rate and climb speeds are also far higher. We do not operate the Mk 3 aircraft.
