Ya. I know the POH performance charts are perfect day, perfect pilot. New plane ect but this model won't get near the numbers.

 

Example, 20,000 feet. 2450 rpm, 28 inches MP should net 190 to 200 KTAS.

 

This is confirmed by Cessna owners discussing thier planes at the Cessna ownsers association site.

 

In the sim, I get under 160 knots KIAS and indicating about 175 ground speed on my RXP GNS 430. With no wind. Without wind, GS is TAS if I recall correctly.

 

I guess I should bust out the old flight computer.

 

Edit... I need to do more testing. My E6B SAYS 160 knotts indicated at -20C at 20000 FEET is 202 knots true airspeed.

 

C.

Ya. I know the POH performance charts are perfect day, perfect pilot. New plane ect but this model won't get near the numbers.

 

Example, 20,000 feet. 2450 rpm, 28 inches MP should net 190 to 200 KTAS.

 

This is confirmed by Cessna owners discussing thier planes at the Cessna ownsers association site.

 

In the sim, I get under 160 knots KIAS and indicating about 175 ground speed on my RXP GNS 430. With no wind. Without wind, GS is TAS if I recall correctly.

 

I guess I should bust out the old flight computer.

 

Edit... I need to do more testing. My E6B SAYS 160 knotts indicated at -20C at 20000 FEET is 202 knots true airspeed.

 

C.

 

OK I guess it's closer than I thought. A few Altitude tests and the TAS (True Airpeed) is within 5 knots confirmed with the GNS430 TAS and WINDS page versus the POH performance charts. It's just wierd looking at the AI and see that the plane has another 40 KIAS (Knots Indicated) sitting there unused at 75% power (2400rpm and 28 inches MP). Looks like this plane is configured as about 140 - 150 knot cruiser at 10,000 feet and below but being pressurized it is meant for high teens and low twenties cruising with turbo charge and pressurization allowing it to hit the 200 knot TAS cruise.

 

What would HELP make this make sense is if the TAS adjustment knob on the Airspeed indicator actually worked. Can this be fixed? It is inoperable ATM and the only way to truely know my TAS is to look in my GNS 430 TAS and WINDS page.

 

I guess at this point, this plane is already over a year old and not going to see any more updates. I love this plane as a personal dream cruiser though and one you see all over the place. Load the virtual family in and go. A nice step down from the C90.

 

Looking at it though, you would not expect a normally aspirated Bonanza to keep pace with it below FL200.

 

Charles.

It might be best to reference the listed Carenado performance specs for the model rather than real world ones as they can differ a little due to individual aircraft mods and configs they might have based the sim model on. I noticed with some Carenado planes that their listed specs differ slightly than some real world aircraft specs... However, saying that, if you search performance specs for some aircraft online, you can often find variations between those real world aircraft too, so perhaps the Carenado model is based on a variation of a "stock" factory C340?

For sure I think you are right. Minor variances here and there. Just watched a bunch of video of the Cessna 340. The Carenado model appears to behave the same as the real world counterparts. In terms of power management I mean. What a beautiful and under appreciated model for fsx I think this one is. It's almost surreal when you fly it. I like this conversation...

 

http://www.cessnaowner.org/memforums/topic.html?id=18290&p=1#p18751

 

So this guy keeps it at 38 inches in cruise. Wow. I watched 3 videos on youtube with cruise settings over 30 inches. The POH asks for 28. I guess owners like speed over economy. I'll be driving it harder in the sim now.

 

 

C.