Welcome! Becoming a registered user of ShortWingPipers.Org is free and easy! Click the "Register" link found in the upper right hand corner of this screen. It's easy and you can then join the fun posting and learning about Short Wing Pipers!

Page 2 of 2 FirstFirst 12
Results 11 to 18 of 18

Thread: 1500 rpm why?

  1. #11
    sierrasplitter's Avatar
    Join Date
    Dec 2018
    Location
    Lakeside California
    Posts
    172
    Post Thanks / Like

    Default Re: 1500 rpm why?

    Sounds like my Technic is completely wrong, or completely different. When I have the numbers in my strut V on downwind I cut power. Completely. Put in One notch of flaps and set trim at 80 . One more notch of flaps on base brings me to 70 . By the time Im over the fence Im at 60-65 . Then I try to make my spot without adding any power. Sometimes I may have to kick it back up to 1200. Full Flaps and sometimes I even have to slip at that .

  2. #12
    thebeerdedpilot's Avatar
    Join Date
    Sep 2019
    Location
    Mt Pleasant, WI
    Posts
    58
    Post Thanks / Like

    Default Re: 1500 rpm why?

    I think it's just an easy number to remember that can be applied to multiple small GA aircraft. But as with anything, you just give it more or less as needed. Personally, I chop the power when abeam my landing point and glide her in. That seems to work the best for me. But there are times when I need to give her some throttle to hit my mark. I find that all the tailwheel airplanes I've flown (Pacer, Cub, Stearman) are done mostly by feel rather than hitting specific RPMs and speeds like a C172 or Warrior.

  3. #13

    Join Date
    Mar 2013
    Posts
    63
    Post Thanks / Like

    Default Re: 1500 rpm why?

    Quote Originally Posted by sierrasplitter View Post
    Sounds like my Technic is completely wrong, or completely different. When I have the numbers in my strut V on downwind I cut power. Completely. Put in One notch of flaps and set trim at 80 . One more notch of flaps on base brings me to 70 . By the time Im over the fence Im at 60-65 . Then I try to make my spot without adding any power. Sometimes I may have to kick it back up to 1200. Full Flaps and sometimes I even have to slip at that .

    I wouldnít say wrong. If it is working, it is ďrightĒ for you. And if it ainít broken donít fix it.

    I am an engineer, so itís a fair criticism that I may be overthinking it. It just gives me something to do when I go out to try and improve rather than blindly rely on some recipe someone told me. Thanks to everyone for your comments.

  4. #14
    Gilbert Pierce's Avatar
    Join Date
    Nov 2007
    Location
    Germantown, Tennessee 01TN
    Posts
    3,438
    Post Thanks / Like

    Default Re: 1500 rpm why?

    Quote Originally Posted by sierrasplitter View Post
    Sounds like my Technic is completely wrong, or completely different. When I have the numbers in my strut V on downwind I cut power. Completely. Put in One notch of flaps and set trim at 80 . One more notch of flaps on base brings me to 70 . By the time Im over the fence Im at 60-65 . Then I try to make my spot without adding any power. Sometimes I may have to kick it back up to 1200. Full Flaps and sometimes I even have to slip at that .
    If it works for you, you donít have it wrong. Stick with what works.

  5. #15
    ClippedWing's Avatar
    Join Date
    Sep 2011
    Location
    Orange County, CA
    Posts
    76
    Post Thanks / Like

    Default Re: 1500 rpm why?

    I agree, Not wrong Ray.

    Each new airplane, I take it up and stall it in a few configurations, especially landing, with power off to find out what she does and at what indicated speed so I know what to expect during landing.

    And I’ve flown a few and they’re all different! My plane stalls with almost no indicated airspeed with power on.

    One thing that I maintain in common is that I try not to ever put the aircraft in position where it won’t make the runway if the engine quits at ANY point. That means, long, extended downwinds, or even a stabilized 3į glide slope is not a normal approach for me in a Pacer.

    All that being said, that’s a matter of preference after 37 years of flying, so your mileage may vary. And certainly there are circumstances where a flatter approach can’t be avoided.

    In my 135 hp Pacer, it’s typically about 1900 rpm on downwind to get to the top of the white arc for flaps. Then base is about 1300-1400 rpm to maintain 75, turning final, reduce just a bit to maintain 70 until landing is assured then full flaps and idle to touchdown. Most of my landings are wheel landings because I think the tail has more authority in the air and I think it’s easier on the tw assembly to lower it slowly to the runway. Again, just personal preference.

    If I needed to be short, I’d fly a flat approach with power at about 55 and three point but even with my normal procedure and wheelies, I’m clear of the runway at the 900 ft mark.

    Long story short, (too late!) Use what you need and try to do it similarly each time.

  6. #16
    ysifly2's Avatar
    Join Date
    Jun 2010
    Location
    Rockford, IL
    Posts
    346
    Post Thanks / Like

    Default Re: 1500 rpm why?

    Quote Originally Posted by sierrasplitter View Post
    Sounds like my Technic is completely wrong, or completely different. When I have the numbers in my strut V on downwind I cut power. Completely. Put in One notch of flaps and set trim at 80 . One more notch of flaps on base brings me to 70 . By the time Im over the fence Im at 60-65 . Then I try to make my spot without adding any power. Sometimes I may have to kick it back up to 1200. Full Flaps and sometimes I even have to slip at that .
    Iíd say that my technique is similar, most of the time. Works when at uncontrolled airports when you have the pattern to yourself... like my home airport.
    But... I also try to learn and practice using different approaches. Maybe someone else in pattern and you have to extend downwind. Maybe controlled field and you are directed to enter on base with no downwind. Occasionally will fly into an airport with very very active skydiving.... need to sometimes use non standard pattern.
    Key for me is learning various techniques and approach views.... and learning the feel of your airplane.

    Bryan


    Sent from my iPad using Tapatalk

  7. #17

    Join Date
    Mar 2013
    Posts
    63
    Post Thanks / Like

    Default Re: 1500 rpm why?

    Quote Originally Posted by ysifly2 View Post
    Iíd say that my technique is similar, most of the time. Works when at uncontrolled airports when you have the pattern to yourself... like my home airport.
    But... I also try to learn and practice using different approaches. Maybe someone else in pattern and you have to extend downwind. Maybe controlled field and you are directed to enter on base with no downwind. Occasionally will fly into an airport with very very active skydiving.... need to sometimes use non standard pattern.
    Key for me is learning various techniques and approach views.... and learning the feel of your airplane.

    Bryan


    Sent from my iPad using Tapatalk
    That's my approach. I dont want to dredge up some of the old eternal arguments, but I think it is wise to have as many tools in my bag as I can. If you are good mechanic, it always pays to have the right tool for the job. I think that applies to pilots too.

  8. #18

    Join Date
    May 2010
    Posts
    72
    Post Thanks / Like

    Default Re: 1500 rpm why?

    what works for pavement pounders wont work for those who are hitting small strips with tight tall trees etc. Every approach is different and all are fluid. I am like Steve and fly the approach the situation calls for and its solely by sight and feel. Why bother looking down when the place you want to hit is out in front of you and the sight picture will tell you what you need to do. 2 days ago I was hitting a strip that comes in over a gorge and I was anywhere from a dead idle to full power to stop the sinkers and lock to lock on the yoke.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •