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  #1  
Old 06-15-2009, 03:06 PM
Fallalloveryou Fallalloveryou is offline
 
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Default Approach Speed RV-9

Just wondering whats the best approach speed to land a RV-9. I've been coming in at 80 MPH and finding that the RV-9 will glide a long way down the runway and is prone to bouncing at this speed.

How slow can the approach speed be?
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  #2  
Old 06-15-2009, 03:30 PM
rv72004 rv72004 is offline
 
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Stall speed times 1.3 is normal approach. What is the stall speed ?
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  #3  
Old 06-15-2009, 03:33 PM
David-aviator David-aviator is offline
 
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Quote:
Originally Posted by Fallalloveryou View Post
Just wondering whats the best approach speed to land a RV-9. I've been coming in at 80 MPH and finding that the RV-9 will glide a long way down the runway and is prone to bouncing at this speed.

How slow can the approach speed be?
Take your airplane up and stall it with landing flaps. Add 30% to the stall speed.

Vans says the RV-9 with a 160 hp engine will stall at 44 mph solo weight and 50 mph at max gross weight. That would indicate solo weight approach speed should be about 57 mph and at max gross weight 65 mph if your airplane is like theirs.
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  #4  
Old 06-15-2009, 03:34 PM
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N941WR N941WR is offline
 
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Do a search on the subject, it seems to come up every six months or so.

80 MPH is only 10 MPH under flap deployment speed and is WAY too fast!

For my -9 I use 65 MPH solo and 70 MPH with two or more on board.

I've done 60 MPH but the sink rate is pretty high and you need some power to cusion the impact, err, landing.

My landing technique is real simple. Abeam the numbers I put in all the flaps and trim it for either 65 or 70 MPH and then use pitch for speed and power for distance. I consider it a bad landing if I have to add power. to make my touchdown point.

This will keep you in nice and tight and will give you a good margin above the stall.
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Last edited by N941WR : 06-30-2010 at 08:17 PM.
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  #5  
Old 06-15-2009, 03:37 PM
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L.Adamson L.Adamson is offline
 
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We use 90/80/70 mph for a 9A, and 90/80/70 kias for my 6A.

Just be close to the runway at 60 mph, because the 9's will drop out from underneath you too. My 6A is just about 10 mph more for the pattern and approach.

L.Adamson
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  #6  
Old 06-15-2009, 03:40 PM
jclark jclark is offline
 
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Location: Columbia, SC
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Default Might want to work your way "down" to it ...

Quote:
Originally Posted by Fallalloveryou View Post
Just wondering whats the best approach speed to land a RV-9. I've been coming in at 80 MPH and finding that the RV-9 will glide a long way down the runway and is prone to bouncing at this speed.

How slow can the approach speed be?
I think that if you slowly approach finding the speed that works by decreasing your speed in 5 mph decrements you will find what works for you and your plane.

In the RV9(A), I typically want to turn to final using 80 MPH, get established and slow to 70 MPH. When I know the runway is made, then down to 65 MPH. That **MIGHT** work in your case but YOUR "mileage" may vary.

Many will say go to 1.3 x stall speed, but until you have a good feel for the plane you might want to give yourself a little cushion ... and you **probably** have a lot left if you are using 80 MPH.

I am NOT a flight instructor. I am just sharing my experience with the plane type.
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  #7  
Old 06-15-2009, 03:42 PM
jclark jclark is offline
 
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Default Agree 100%!!

Quote:
Originally Posted by L.Adamson View Post
We use 90/80/70 mph for a 9A, and 90/80/70 kias for my 6A.

Just be close to the runway at 60 mph, because the 9's will drop out from underneath you too. My 6A is just about 10 mph more for the pattern and approach.

L.Adamson
This is EXACTLY what I have told a friend. Easy to remember and easy to do. Same "#" for each plane type just MPH in one and KTS in the other.

James
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  #8  
Old 06-15-2009, 04:44 PM
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scard scard is offline
 
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I'm curious, are we talking (original poster) CS prop, or fixed pitch? With the CS, things change big time when/if the power goes away. Don't be too far out and too slow. With a CS, full flaps, and the power off, the -9 can almost parachute down from pattern altitude. Just play with it. You'll find what you are comfortable with. If you're floating that far every time, clearly you have more energy left over than you need. Just because someone else likes 57 knots over the numbers, doesn't mean that I have to .
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  #9  
Old 06-15-2009, 07:02 PM
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Greg Arehart Greg Arehart is offline
 
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Default 2 or more?

"For my -9 I use 65 MPH solo and 70 MPH with two or more on board."

Bill, is that before the 9-month quickbuild was finished??

greg
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  #10  
Old 06-15-2009, 08:16 PM
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N941WR N941WR is offline
 
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Quote:
Originally Posted by Greg Arehart View Post
"For my -9 I use 65 MPH solo and 70 MPH with two or more on board."

Bill, is that before the 9-month quickbuild was finished??

greg
Greg,

70 works just fine with myself, my wife, and now 7 month old QB on board our three seat RV-9. Yep, I've mounted a babyseat in back and it works great. Thanks Jamie for the idea.
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