The Aeromodeller plans were all in 1/72 and the MB.2 appeared in June 1944. With solid kits you got a plan with sections and roughly shaped (or unshaped) blocks of wood which you carved and sanded to shape. Working from Aeromodeller plans meant that you found your own wood and Hard balsa,Lime or Piranah Pine or Obechi were the best but I never liked Obechi.
John