Undoubtedly. As I've noted before (see lot #285 on page 15 of this thread) the RA had no offensive TB force until after Italy joined the war in June 1940, and initially the RM was hampered by lack of RA maritime recce to find RN ships, something that didn't begin to improve until after the July 1940 Action off Calabria.
Not a fair characterisation of the RN position. Look at where the RN expected to operate in wartime both in WW1 and throughout the inter-war period. The North Sea and the Med.
effective range of aircraft, both carrier and land increased significantly during the interwar years.
RN had carried based single seat fighters in the 20s and most of the 30s. Doctrine (?) restricted their operation radius to visual distance from the carrier.
When the Skua showed up it's radio/navigation equipment allowed for much greater range. While useful aircraft vs snoopers and strike aircraft it was not up to taking on single seat fighters. This was excused in many books (without quoting actual memo's or letters?) by claiming it was not intended to go up against shore based fighters. A smokescreen? The RN was asking for single seat fighters but they didn't get them for several years and the Sea Hurricanes and Seafires were substitutes for the over-speced fighters that never materialized (Firebrand).
RN has a history of fighting where it needed to, despite not being properly equipped.
At some point in the 1930s the RN must have been planning on fighting the Japanese, at least contingency plans. Only the US had any significant carrier forces. French Bearn was joke and the Germans and Italians had plans on paper. Sweden had the Gotland but 6-10 Hawker Osprey float planes don't sound like a serious threat to the RN.
But as the RN found, relying on calling up fighters from shore bases to protect a fleet at sea couldn't be relied on. Expecting a permanent CAP to be maintained from shore was prohibitive in terms of cost and numbers of aircraft required.
None of combatants in WW II had very good cooperation between their navies and air forces from WW I to the start of WW II. For those nations that even approached good cooperation during WW II it seemed to take several years after the shooting started. US started shooting late and didn't start to cooperate much until 1943?
Expecting a permanent CAP to be maintained depends on geography and numbers of aircraft.
RN had not figured out how to do that even in 1939-40. Reason (or one of them) for the losses of the Courageous and Glorious. They were not keeping a permanent recon/search watch let alone a CAP (air interception) cover.
You need 4 aircraft to keep up a permanent daylight one aircraft at time CAP. Double for 2 aircraft at time?
Italy for defensive purposes can close off a lot of it's extensive coastline. Getting ships into the Adriatic is hard. So the eastern 600-700 miles of coast is relatively safe. The 180 mile (?) gap between Sardina and Sicily closing off the southern entrance to the Tyrrhenian Sea is also a benefit. The Ionian Sea is the only vulnerable area and spending how much money on 2-4 carriers to cover that instead of using land or shore-based aircraft?
The British with their much larger number of colonies and areas of interest would need a much larger fleet of land/shore based aircraft to even cover the ocean areas 2-300 miles from shore. Carriers make sense for them. Unless Italy plans to attack Gibraltar or Alexandria with carrier strikes then carries make less sense.
Many navies over-estimated the effectiveness of their AA guns (include fire control here). But a small number of fighters (12-24?) may not be enough to stop all attacking aircraft either.
Italians tried and failed to come up with good naval AA guns, enough AA guns and/or good fire control. Some good ideas, not so good execution.
Italian 90mm AA gun, The idea of using gyro stabilizers (11 per mount) to greatly increase accuracy was good.
Problems
1. low rate of fire. 12-16 rpm
2. small shells, about 10kg.
3 great weight, 18-19 tons.
4. mount was not well protected from water.
Compared to the standard British twin 4 in.
rate of fire 15-20 rounds per barrel
Shell weight about 15kg per shell
Twin mount was about the same.
British mount was not stabilized but most had manual power with much less problems with water.
Cost of the sophisticated Italian mounts?