When the German bomber crashed, it is likely at least one engine would have been powering it, if not both, so some of the propellers should have been bent back due to the aircraft's forward speed at contact with the ground. They are all in pristine condition as if a snow had merely covered a parked aircraft.
Lt. Davenport is wearing a Royal Marines shoulder patch which is clearly visible when they are preparing the sled with Schopis. The Royal Marines had no aircraft and hence no pilots. He should've been wearing a Navy patch. In the real life events on which the movie was based on, Davenport and Smith (their real names were Partridge and Bostock) were flying a Royal Navy Sea Skua fighter bomber and they were both Navy officers.
When Strunk checks the stove upon first arrival to the cabin, he curses saying that there are only two matches left. However, in the first hot of the matchbox having been emptied. there are nine matches that can be easily seen. It could be said that perhaps the other seven had been spent, but they disappear in the next shot.