Originally Posted by
tubby linton
Wasn’t there a story about an Argonaut on a royal tour that had a lot of armour plate fitted which was subsequently forgotten?
Possibly there was an Argonaut as well, but an armoured floor was fitted by the RAF to one of the Queen's Flight Vikings VL232 for a royal tour in South Africa. According to p.19 of "The Eagle Years" by David Hedges, Eagle Airways subsequently bought it as G-APAT and considered it "down on performance" until they found the reason!