Quote:
Originally Posted by IvanK
There are 4 Possibilities with Prop pitch on the 109E.
OPTION 1
As we have it now Straight variable pitch (no CSU) with pitch controlled by the main panel
spring loaded to centre lever. Only error in the modelling here is that the lever is not spring loaded to the centre position.
OPTION 2
Lever on the main panel was removed and a Rocker Switch on the throttle used. Still straight variable pitch (no CSU)
blanking plate fitted over the hole left in the main panel.
OPTION 3
Auto function with CSU fitted as a field mod. This did not come into service until late 1940. Available documentation indicates Squadron use starting in early Nov 1940. The RAF Hendon E3 has this system. It was shot down on 21st or 23rd Nov 1940. An additional switch was located below the throttle to allow the Auto system to be turned off. When off the Rocker was used as in option 2. We know its field mod in this aircraft as a blanking plate has been placed to cover the hole left by removal of the panel switch. The blanking plate also having the hand written note reminding the pilot that this aircraft is now fitted with the Auto system.
OPTION 4
Auto fitted at factory level. These aircraft can be identified by the lack of a blanking plate on the main panel
So modelling is correct (other than spring to centre), we just dont yet have the late 1940 Auto system ... it will eventually be there.
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The information regarding the date of availibilty of the auto function is wrong.
The Bf 109E1 and E-3 manual of
December 1939 already notes the automatic system (Verstellautomatik), and gives different operating instructions to those planes with the old manual system ("Options 1 and 2") and the auto prop pitch system.
Auto and manual props pitch systems also had differently designated VDM propellor type numbers.