M20D (Converted to RG) Cruise Speed Comparison

[atmaurer]

I am looking at buying a M20D converted to RG and I was wondering what to expect for cruise speed?  My first flight was around 135kt indicated, not sure if that is slow or reasonable.   I would like to know if I would expect different results from a true M20C.

Secondly, Anything I should be aware of in owning a M20D?

Thanks much!

[Hank]

10 minutes ago, atmaurer said:

I am looking at buying a M20D converted to RG and I was wondering what to expect for cruise speed?  My first flight was around 135kt indicated, not sure if that is slow or reasonable.   I would like to know if I would expect different results from a true M20C.

Secondly, Anything I should be aware of in owning a M20D?

Thanks much!

Be careful comparing indicated airspeed. Accuracy falls off as air pressure decreases. A good rule of thumb is to add 2% of indicated airspeed for every 1000 feet if altitude. 

For instance, my C often indicates 144 mph around 9000-10,000 msl. Add 144 + 18% = 170 mph.

[Raptor05121]

A M20D/C is the exact same as a M20C in respect to book speeds. Do you have a 2-blade or 3-blade? Mine is just shy of book speeds, I routinely get 145KTAS in cruise up high. Indicated will be MUCH lower. But whip out the E6B and calculate it. Here are some screenshots for you:

 

A little tailwind...

Another separate time... same TAS

[Hank]

Love your Mach number on the table . . .

[Raptor05121]

Just to remind me I'm not a peasant Cessna with Mach 0.15