The A2A Simulations Community

Hey guys,
I installed update 1.3.1 over 1.3.0 to see if it resolved some the bugs that had cropped up.

I took Tejanahawk to Area 51 for some testing...big open spaces, clear weather and Tejana's relatives are there .

Conditions
Airport elevation 4400ft
Temp 25C
29.97
Wind Calm

Gross weight ~ 6800lbs
Rear tank empty.


Due to airport size a lengthy taxi time was required and temps stayed fine. Takeoff fine, I don't think the coolant got above 110 C @ takeoff power.

Airspeeds seem more 'normal' now.
Level at max climb power setting, auto rich, cowl flaps on climb setting.


Level at max cruise power setting, auto lean, cowl flaps on cruise setting.



Climbs with tempatures cooler than pre-core update.
Vx Climb


Vy Climb *note this altitude is about where max climb power begins to fall off.



Per Scott's request in the Core update thread, I climbed to 16,000 and entered a dive. It did indeed pull to the right.


Power required for landing seemed more 'normal' this time too.

All in all seems most of the bugs have been fixed. The jacks issue appears to be fixed, as I was able to jack the airplane, raise/lower gear, and remove jacks fine. Carb heat seems to be a little goofy but that has already been noted I believe. Pinging sounds after engine shut off still sound like switch 'click' sounds instead of the pinging sounds heard in the P-51.

Seems things are mostly back to normal. Thank you A2A team for your hard work.

Cheers
TJ

_________________
"The knack of flying is learning how to throw yourself at the ground and miss." - Douglas Adams

The power of this engine seems still more than before (V1.2). Example: there is almost no chance to get her down to 160 MPH above 12 inches MP. She creeps when idling above 800 RPM on concrete and no brakes set. At Run-up, you only need 22 inches to reach 2200RPM.

Maybe all this is "more correct" than before, I don't know?

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You are right. I have done a complete system reinstall and have a fresh FS install. After flying the P-40 a few more times with 1.3.1, it does still feel more powerful. Not as much as 1.3.0, but I took off from FTX Harvey field in a bit shorter distance than expected.


I am thinking of going back to core update 1.2 until the next update.

Scott or anyone, what would going to back to Core update 1.2 for the time being do to the P-51?

_________________
"The knack of flying is learning how to throw yourself at the ground and miss." - Douglas Adams

Just for ducks, I installed 1.2 again to compare. Level flight @ sea level w 27" 2300RPM AL yielded about 205mph IAS with a coolant temp hovering around 105C (OAT about 18C) with cowl flaps in cruise setting.

You know, I wonder if 1.3.1 handling would be like a lighter Airshow P-40 with Armor/Guns removed.

Looking foward to the updates.

CHeers
TJ

_________________
"The knack of flying is learning how to throw yourself at the ground and miss." - Douglas Adams

TJ,

The performance you are seeing now is a closer to reality than it was prior. This new update will be out shortly, but doesn't alter the performance from v.1.3.1.

Scott.

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A2A Simulations Inc.

Thats great Scott, I will keep flying with 1.3.1 then. I was curious which version was 'reality'. Would the coolant temps in the pics above be closer to normal too? I noticed in the VX climb on a warm day, still maintaining 105C.

Thanks
TJ

_________________
"The knack of flying is learning how to throw yourself at the ground and miss." - Douglas Adams

It's very hard to know exactly how this early P-40 runs in terms of its cooling power, but we do have some tests that the army did and have tuned it to those tests. Accu-Sim then uses that information to simulate the entire range.

Scott.

_________________
A2A Simulations Inc.

Just a couple of things to ask about.
No yaw when lowering the gear.
And no brake squeal.
I miss these.

Robert, I just checked. The yaw is MOST definitely still there.

As for brake wear, I believe offhand that it is tied to whether or not the brakes are worn. If you have nice new brakes, then they will not squeak.

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Brakes need to wear down a bit to start squealing. AccuFeel, however, can make them squeal a lot more.

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A2A Simulations Inc.

Roger on the brakes. I was thinking the same thing.
But I have no yaw at all when dropping the gear. 150IAS, level flight, clear weather, 3000ft alt.
Perhaps it needs some flying hours on it to settle in?

Thats what I love about accusim...after hours of flying, accusim will take in the variables and through it's own coding will show us the true nature of these beasts. Before A2A I had heard people talking about the Allison V-1710 and how rugged it was. I never really understood or had anything to base it on but with Accusim, I am seeing for myself just how right they were.

I only have real time experience in GA birds, and I have great respect for the Lycoming O-360s and 540s that kept me in the air...even more so now, with Accusim really showing me what these engines go through and just what they can handle. I know the O-360 is like an RC airplane engine compared to the V-1710 but both are great peices of rugged mechanical engineering.

_________________
"The knack of flying is learning how to throw yourself at the ground and miss." - Douglas Adams