Official Fulqrum Publishing forum - Spitfire makes only 300 mph?

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I was running 997mb.
Pretty sure Magvar is not modelled. 10W is what it was in 1943

There is an OAT gauge in the HEIII up over your right shoulder. A similar one in the JU88 on the right side wall.

Quote:

Originally Posted by reflected (Post 258137)

I dare anyone to fly the Spit MK2 faster than that. It's supposed to make 350mph, but no matter how I adjust my prop, it jsut wouldn't go faster. The max speed I can reach in the MKI is about 250. What am I doing wrong? Full real except for temp.effects. :(

It only goes 350mph at its fastest height.

If you are at sea level, I believe the top speed is 292mph

Finally! The first one to realize that! *cheer*

Quote:

Originally Posted by Xiola (Post 263561)

It only goes 350mph at its fastest height.

If you are at sea level, I believe the top speed is 292mph

292 at SL is Correct for a Mk IIa running +9 lbs
For a +12 lbs boost it should (and does) get around 310-315mph

Quote:

Originally Posted by Redroach (Post 263586)

Finally! The first one to realize that! *cheer*

Well spotted... I pointed out that the Spitfire Mk IIa was a +12lbs boost version on the first page of this thread. :)

Quote:

Originally Posted by Viper2000 (Post 259734)

Likewise, the "no cockpit compass" displays true heading, whilst the compass in the aeroplane appears to suffer from quite a lot of magnetic variation (almost 20 degrees West; I was expecting more like 10 for 1940, though it's really hard to read the compass in 720p resolution...). [There is no compass card in the cockpit, so I assume that the difference between indicated and must be entirely due to magnetic variation.]

perhaps the 20 degrees West is some confusion between magnetic North vs. NAD27/OSGB36/WGS84/ETRS89 ellipsoid OSGB/UTM and other 2d geographic projections based on a cylinder

i.e. the map system and the location of magnetic North is plotted in 3d space using a 2d geographic projection (the distance between 1deg latitude at the equator is show the same as 1deg latitude near the poles) however the game world uses an ellipsoid so the more north/south you are from the equator the shorter the distance between each 1deg of latitude.

The above would cause magnetic north to appear hundreds of KM further west than it was, this could also account for some speed errors as to get a “speed” you must be travailing relative to something and the problem could come if it’s a distorted geographic projection vs. a true representative ellipsoid dependent on if your in the south or north of the map travailing east><west.