Piper 140 Question

JaceTheAce

JaceTheAce

Well-Known Member
Anyone know the approximate cruising speed of a Piper 140 at 75% power? Trying to analyize costs for a cross-country - need to decide if it's a 110 MPH 172L (95 knots...that sucks!!!) or Piper 140.

Thanks! :D
 
JaceTheAce said:
Anyone know the approximate cruising speed of a Piper 140 at 75% power? Trying to analyize costs for a cross-country - need to decide if it's a 110 MPH 172L (95 knots...that sucks!!!) or Piper 140.

Thanks! :D
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[FONT=Verdana, Arial, Helvetica]PERFORMANCE[/FONT]​
[FONT=Verdana, Arial, Helvetica]Cruise speed (knots):[/FONT]
[FONT=Verdana, Arial, Helvetica] ALTITUDE [/FONT][FONT=Verdana, Arial, Helvetica]SPEED[/FONT]
[FONT=Verdana, Arial, Helvetica]75% power: [/FONT][FONT=Verdana, Arial, Helvetica]7800 [/FONT][FONT=Verdana, Arial, Helvetica]115[/FONT]
[FONT=Verdana, Arial, Helvetica]65% power: [/FONT][FONT=Verdana, Arial, Helvetica]10,200 [/FONT][FONT=Verdana, Arial, Helvetica]108[/FONT]
[FONT=Verdana, Arial, Helvetica]55% power: [/FONT][FONT=Verdana, Arial, Helvetica]12,000 [/FONT][FONT=Verdana, Arial, Helvetica]102[/FONT]

http://www.planeandpilotmag.com/content/specs/65cherokeePA28-140.html
 
Thank you very much! It'll be quite a bit cheaper for a X-C. The 140 is $10 per hour cheaper than the 172 and it cruises faster.
 
Just remember if you're climbing over any terrain that 140 is gonna suck hard (not that 172's are great performers, but a 172SP will outperform a 140 like whoa).
 
John Herreshoff said:
Just remember if you're climbing over any terrain that 140 is gonna suck hard (not that 172's are great performers, but a 172SP will outperform a 140 like whoa).
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It's an older 172 with a climb prop, it climbs very well... where I will be flying terrain won't be a big issue.

I think the reason why this 172 is so damn slow is because of the climb prop.
 
JaceTheAce said:
It's an older 172 with a climb prop, it climbs very well... where I will be flying terrain won't be a big issue.

I think the reason why this 172 is so damn slow is because of the climb prop.
Click to expand...

Or could it also be your msl?
 
I'd kill for a climb prop where I'm flying right now.

Remember, you're building hobbs time not miles bro :)
 
John Herreshoff said:
I'd kill for a climb prop where I'm flying right now.

Remember, you're building hobbs time not miles bro :)
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Hobbs is right, but for this specific flight where I want to save money... I can care less about the hobbs time. I care about what the end cost will be! :D

I knew you people were gonna tell me that :D If I could take a 152 and save more money while getting there slower, I'd do that too. I don't care about speed or time it takes to get there - it's the ending cost that is a factor.
 
A climb prop is just a prop that is made so that it's most efficient in a climb, I.E. a flatter pitch. It'll climb better, but when you get up to cruise it works like a giant drag device hence making your cruise slower.

That's the advantage of having a constant speed prop, because you can adjust it in flight. I.E. move the blue knob all the way forward and you climb better, bring it back and you'll cruise better.
 
John Herreshoff said:
A climb prop is just a prop that is made so that it's most efficient in a climb, I.E. a flatter pitch. It'll climb better, but when you get up to cruise it works like a giant drag device hence making your cruise slower.

That's the advantage of having a constant speed prop, because you can adjust it in flight. I.E. move the blue knob all the way forward and you climb better, bring it back and you'll cruise better.
Click to expand...

I haven't flown anything with a constant speed prop having only flown 172SP's and Archer III's but I hear the CS props are nice!
 
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