31. The convoy was here for two days of rest, refuelling and replenishing supplies. 32. Once operational, they do not require refuelling . 33. Only refuelling at part load or when shut down is now undertaken at AGRs. 34. The Valiant had been designed not only to accommodate the early aerial refuelling tankers. 35. Sir Alan Cobham devised a method of in-flight refuelling in the 1930s. 36. The terrorists were persuaded to allow the aircraft to land in Luxor for refuelling . 37. The refuelling was performed by three converted Newfoundland. 38. Another technology developed for the purpose of transatlantic commercial flight, was aerial refuelling . 39. An air-to-air refuelling probe supplied by Cobham will be added. 40. The Iceland route also provided better air cover and escort refuelling for allied convoys.
