Friday October 12 - Release Candidate 2

[Fenrir]

Originally Posted by IvanK

Ok I have just retested ALL the RAF fighters. Same result the only aircraft affected is the Spit MKIA 100 Oct. In my first set of tests they were all done On line in the ATAG server. In these Retests they were done Off line using Quick mission. Same result On Line and Off line

METHOD

CONSTANT SPEED TYPES
Climb on Schedule, Rad Full Open +6.25Lbs Boost/2800RPM Mixture AUTO RICH (Back) In Spit IIA I used +9Lbs Boost/2800RPM. Temps and pressures all within limits throughout climb. Climb from 6500Ft to 12,000Ft

2 PITCH AIRCRAFT
Climbed +6.25 Lbs Boost/Coarse (about 2400RPM) Rad Full open, Mixture AUTO RICH (back) on schedule. Then Repeated the test at 6.25Lbs Boost/Full Fine (about 3000RPM). Again Climb from 6500ft to 12,000ft. All Temps and Pressures within limits.

Only aircraft with an issue was Spit MKI A 100 oct its symptoms are:

Climbing at +6/2800RPM passing 9500ft I get a couple of audible "put" "put" from the engine, passing 10,500ft I get very rough engine running. Reducing Boost to +5 and it smooths out. It also smooths out if I maintain +6Lbs boost but reduce RPM to 2600. Either way this shouldn't be happening.

I can confirm this behaviour; certainly had me perplexed first time I heard those "phut-phut" noises!