Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Page 3 of 3 FirstFirst 123
Results 51 to 71 of 71

  1. #51

    Join Date
    Feb 2011
    Location
    moshav bizaron, ISRAEL
    Posts
    3
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36



    Look at mySD 36
    Power by os 50 hyper with jett muffler,prop 9x9
    Enjoy



    http://www.youtube.com/watch?v=rnqc7...layer_embedded


  2. #52

    Join Date
    Dec 2002
    Location
    Houston, TX
    Posts
    93
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    Shalom, Moshiko!

    Your plane is set up almost exactly like mine! Awesome. I am going to try the 9x9 prop. Do have any idea how fast it was going?

    Best Regards.

  3. #53

    Join Date
    Feb 2011
    Location
    moshav bizaron, ISRAEL
    Posts
    3
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    I think it passes the 130mph[8D]

  4. #54

    Join Date
    Sep 2009
    Location
    , TX
    Posts
    2
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    Hey, do you mind showing me how you got your os 50sh to fit a prop? I've got one mounted to my p40 world models and I need to find a prop driver to mount on it.some pics would be nice, thanks.

  5. #55

    Join Date
    Apr 2006
    Location
    Abbotsford, BC, CANADA
    Posts
    216
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    I always go up a size or two on the engine. The old rip the wings off story is bs , as long as you brace things up a little and don't use the crappy stock dihedral brace .

  6. #56

    Join Date
    Jan 2005
    Location
    cameron park, CA
    Posts
    169
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    I have had a SD36 for several months and am not sure which engine to us. I has a OS46, OS55, YS63 and and electric Eflite Power 32 all sitting around. I am concerned that all of my glow options are too heavy. I really would prefer to make this plane scream with a glow motor but since I have so many motors sitting around I don't want to buy anything new. Any ideas?
    John Gray

  7. #57

    Join Date
    Dec 2010
    Location
    Mt Morris, IL
    Posts
    1,388
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36


    ORIGINAL: pencon

    I always go up a size or two on the engine. The old rip the wings off story is bs , as long as you brace things up a little and don't use the crappy stock dihedral brace .
    Have you even seen this plane??? It has a two piece wing on a tube, no dihedral or brace!

    The one that one that failed in the vid posted on the first page of this thread failed at the end of the wing tube, no way to reinforce that area... It looks like the spacing between ribs is on the large side, a sub spar aft the main spar would go along way.. I took mine back after seeing that vid, I wanted a 130mph plane not a 100mph plane, the air frame can not support that kind of speed.... Just my .02
    Ultra Sport Brotherhood #92

  8. #58

    Join Date
    Jan 2005
    Location
    cameron park, CA
    Posts
    169
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    Yes I have seen it, or at least the picture on the box! The box is on a shelf in my garage - I like to look at the picture most days. I love the look of the plane. I bought it on sale - 20% off. So basically I was a sucker for the look of the plane. Maybe I need to buy and OS32 then and figure out how to reinforce some areas. Thanks for the reply.
    John Gray

  9. #59

    Join Date
    Dec 2010
    Location
    Mt Morris, IL
    Posts
    1,388
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36


    ORIGINAL: jg95762

    Yes I have seen it, or at least the picture on the box! The box is on a shelf in my garage - I like to look at the picture most days. I love the look of the plane. I bought it on sale - 20% off. So basically I was a sucker for the look of the plane. Maybe I need to buy and OS32 then and figure out how to reinforce some areas. Thanks for the reply.
    John,
    my post wasnt geared at you, it was to the guyI quoted talking about the D. B.

    I too like the looks of the plane and went out and bought one as soon as they came out, was planning on putting a bigger motor in it and having a screamer, (130mph+) plane.. After I seen the Vid on the 2nd pg of this thread where the wing ripped off, I changed my mind and took it back to my LHS... The pics that he posted showing were it failed, was enough to turn me away... I still like the plane and think if set up for a 100mph plane, close to the suggested motors, it will be a fun plane... The only wayI could see beefing up the wing panels, involved stripping the covering, sheeting and getting in a sub spar aft the main spar, A lot of work.. Sorry if you thought i was replying to you, put a recommended size motor in yours and have fun with it...

    Jimbo
    Ultra Sport Brotherhood #92

  10. #60

    Join Date
    Feb 2005
    Location
    East Granby, CT
    Posts
    80
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    I have finally found an airframe that fits my old HP 40s. I have installed a rear induction engine to the reinforced motor box. A tetra 5 1/2 oz Bubbleless fueltank.
    Not ready yet but i thought I share a couple of pictures of the cool looking aircraft. The engine turns a APC 9x6 16K, I will try a APC 7.5x7.4 carbon prop.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Jh14910.jpg 
Views:	28 
Size:	51.8 KB 
ID:	1654955   Click image for larger version. 

Name:	Cx74934.jpg 
Views:	11 
Size:	56.7 KB 
ID:	1654956   Click image for larger version. 

Name:	Af90645.jpg 
Views:	10 
Size:	54.4 KB 
ID:	1654957   Click image for larger version. 

Name:	Tq48771.jpg 
Views:	14 
Size:	115.6 KB 
ID:	1654958  

  11. #61

    Join Date
    Apr 2002
    Location
    Champaign, IL
    Posts
    424
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36


    ORIGINAL: Mustangman40


    ORIGINAL: jg95762

    Yes I have seen it, or at least the picture on the box! The box is on a shelf in my garage - I like to look at the picture most days. I love the look of the plane. I bought it on sale - 20% off. So basically I was a sucker for the look of the plane. Maybe I need to buy and OS32 then and figure out how to reinforce some areas. Thanks for the reply.
    John,
    my post wasnt geared at you, it was to the guyI quoted talking about the D. B.

    I too like the looks of the plane and went out and bought one as soon as they came out, was planning on putting a bigger motor in it and having a screamer, (130mph+) plane.. After I seen the Vid on the 2nd pg of this thread where the wing ripped off, I changed my mind and took it back to my LHS... The pics that he posted showing were it failed, was enough to turn me away... I still like the plane and think if set up for a 100mph plane, close to the suggested motors, it will be a fun plane... The only wayI could see beefing up the wing panels, involved stripping the covering, sheeting and getting in a sub spar aft the main spar, A lot of work.. Sorry if you thought i was replying to you, put a recommended size motor in yours and have fun with it...

    Jimbo
    Guys,

    I am the product developer on this airplane and when using the suggested engines (EVO 40NX) or Power 32 setup it is an honest 120 mph airplane - exactly what it was designed for. When you add larger engines to go faster you might gain the extra 10-15 mph you are looking for but you are also adding 8-12 ozs of additional weight to the airplane (the EVO 40NX weighs 10 oz's w/o the muffler). Now, if you never had to turn it at speed you would never have any issues with the wing, but if you are talking about an arguable 10 G turn at speed (if not a lot higher) you have just added an extra 100+ oz wing loading to the wing structure in the turn. We have actually done G-loading experiments with our pylon racers and at speed a good #1 pylon turn will be upwards of 25+ g's.

    If we designed airplanes for every possible engine scenario that a customer would put into the airplane they would end up being overweight, highly loaded and fly poorly, especially in the landing phase (tip stalls, etc). Our goal with this airplane is to give our cutomers a fun airplane that any intermediate level pilot will be successful with while providing the adrenaline rush that a fast airplane provides.

    You will have a blast using the airplanes as designed. Please don't put the product down because it won't survive a power system above what we recommended and designed the airframe around.

    Pete

    Pete Bergstrom
    Saito, Evolution & Zenoah Manager

  12. #62

    Join Date
    Feb 2005
    Location
    East Granby, CT
    Posts
    80
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    I agree with Pete,
    Keep it light! The HP40 is light 11oz with muffler (I love those engines and the sound thru the hollow muffler, had my first in Sweden 35 years ago.)
    As an old drag racer I know that you can not get your racer light by doing one big thing, you have to do a hundred small things and it will all add up.
    The Sundowner 36 is great and with a great set of hardware. I did change the plastic spinner to an aluminium since I start tagging in to the higher RPMs.
    So keep it light with the right servos, batteries and receiver.
    I did strengthen the motor box, not that I think it would break but my Q500 experience tells me I prioritize rigidtybefore weight. The engine will actually rev higher
    on a sturdy airframe. Personalizing my aircraft I added some checkered covering, just happens to be where structural damage was done to downed Sundowner 36.
    One other thing I do to aircrafts where I push the envelope is to add CA or Epoxy to seams in critical areas.
    The Sundowner 36 is an awesome aircraft, cant wait to get her airborne.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Lj24164.jpg 
Views:	14 
Size:	96.7 KB 
ID:	1659130  

  13. #63

    Join Date
    Aug 2011
    Location
    winnemuca, NV
    Posts
    37
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36



    I had { keyword } until yesterday the .50 version & also tend to over power. plane was a blast to fly but didnt seem to like the added weight on landing  when the added weight is not running !!!  lol

    jimy 1321

  14. #64

    Join Date
    Feb 2007
    Location
    Plymouth, MN
    Posts
    176
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    Being as though this airplane has a fully sheeted wing, is there any benefit to removing the covering and doing lightweight fiberglass on the entire wing for strength? Or do you think it will still fail because there just isn't enough structure under the skin regardless?

    I ask because I plan on installing a fully throttled Jett BSE Q500 engine (Mr. Jett will build it as requested) with a 8.75x8.75 pylon prop, I know its not a 50sx or such but we all know what the racing 40's are capable of. I want to reinforce the wing, just want to make sure that breaking the nice factory skin is necessary to stand up to say, 130-140mph.

    Best regards,

    Chris

  15. #65

    Join Date
    Dec 2002
    Location
    Houston, TX
    Posts
    93
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    Mine has the OS50SX with the Jett Pipe. About a month ago I had a buddy help me withe some radar gun runs. I was flying flat and level downwind with about a 5-6mph breeze. Fastest speed was 129mph after several runs and then engine had leaned out in the air a bit. I can put it in a full throttle shallow dive and then do a full-pull bank and yank and nothing has failed yet. I really don't think that you are going to need to add any strength to the wing. I feel that it is a strong design. I just think that my buddy's wing wasn't glued together as well as it should have been. Having said that, we are overpowering these planes, and failures are part of the game.

  16. #66

    Join Date
    Feb 2007
    Location
    Plymouth, MN
    Posts
    176
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36


    ORIGINAL: Textanker

    Mine has the OS50SX with the Jett Pipe. About a month ago I had a buddy help me withe some radar gun runs. I was flying flat and level downwind with about a 5-6mph breeze. Fastest speed was 129mph after several runs and then engine had leaned out in the air a bit. I can put it in a full throttle shallow dive and then do a full-pull bank and yank and nothing has failed yet. I really don't think that you are going to need to add any strength to the wing. I feel that it is a strong design. I just think that my buddy's wing wasn't glued together as well as it should have been. Having said that, we are overpowering these planes, and failures are part of the game.

    Interesting, that is good to know. I still would want to know if there is any actual strength improvement from glassing the entire wing on the surface. I would hate to find out that my wing was glued like your buddy's while I'm going 130mph...

    Thanks for the input.

    Best regards,

    Chris

  17. #67

    Join Date
    Jan 2004
    Location
    fairfield, CA
    Posts
    3,327
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    gchdavid DO NOT GLASS the whole wing. waste of time and will add to much weight to the plane. you need to strip the covering of the bottom of the wing. open it up and stregthen the spars with shear webs or the best is a truss set up. Also the jett 40 engine will be a bit of a waste in this draggy air frame. that engine needs to spin up in the 18,000+ which me little props or that "pylon" prop. If you run that prop on this plane it will not be as fast as you think. If you want a good 140-145 plane you will need to run a Jett 56 with regular 9x8 prop, dubbs race wheels with no wheel plants, fix the wing, make a stronger horizontal tail and seal all gaps.

    To the other guy with the OLD HP just use the 9x6 or maybe even a 9x7 APC with 3/16" cut of the tip off the 9x7. this would be faster than the APC carbon 7.4x7.8 prop. This plane needs a bit more thrust.
    AMA # 126183
    Fly light, fly fast and fly low.

  18. #68

    Join Date
    Nov 2003
    Location
    Casablanca, MOROCCO
    Posts
    55
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    question,what would would be your setup for SD 35 to beat the Jackal 50 ? (Jackal runs a with a Jett .56 and 9x8)

  19. #69

    Join Date
    Feb 2007
    Location
    Plymouth, MN
    Posts
    176
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    ORIGINAL: airraptor

    gchdavid DO NOT GLASS the whole wing. waste of time and will add to much weight to the plane. you need to strip the covering of the bottom of the wing. open it up and stregthen the spars with shear webs or the best is a truss set up. Also the jett 40 engine will be a bit of a waste in this draggy air frame. that engine needs to spin up in the 18,000+ which me little props or that ''pylon'' prop. If you run that prop on this plane it will not be as fast as you think. If you want a good 140-145 plane you will need to run a Jett 56 with regular 9x8 prop, dubbs race wheels with no wheel plants, fix the wing, make a stronger horizontal tail and seal all gaps.

    To the other guy with the OLD HP just use the 9x6 or maybe even a 9x7 APC with 3/16'' cut of the tip off the 9x7. this would be faster than the APC carbon 7.4x7.8 prop. This plane needs a bit more thrust.
    Good to know, I will do that. If I have to make a stronger Stab I guess I'll make one with a thin airfoil while I'm at it.

    Also, I am not getting a Q40 engine or even a 428 class Q500 engine which need to spin 20000rpm+ to work properly. It is a 426 class engine and its meant for a "normal" 8.75"x8.5 prop (not the small carbon ones) and spins it at about 18000-19000rpm.

    Thanks for the info.

    Chris

  20. #70
    speedracerntrixie's Avatar
    Join Date
    Jun 2010
    Location
    San Jose, CA
    Posts
    4,507
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36


    ORIGINAL: gchdavid

    ORIGINAL: airraptor

    gchdavid DO NOT GLASS the whole wing. waste of time and will add to much weight to the plane. you need to strip the covering of the bottom of the wing. open it up and stregthen the spars with shear webs or the best is a truss set up. Also the jett 40 engine will be a bit of a waste in this draggy air frame. that engine needs to spin up in the 18,000+ which me little props or that ''pylon'' prop. If you run that prop on this plane it will not be as fast as you think. If you want a good 140-145 plane you will need to run a Jett 56 with regular 9x8 prop, dubbs race wheels with no wheel plants, fix the wing, make a stronger horizontal tail and seal all gaps.

    To the other guy with the OLD HP just use the 9x6 or maybe even a 9x7 APC with 3/16'' cut of the tip off the 9x7. this would be faster than the APC carbon 7.4x7.8 prop. This plane needs a bit more thrust.
    Good to know, I will do that. If I have to make a stronger Stab I guess I'll make one with a thin airfoil while I'm at it.

    Also, I am not getting a Q40 engine or even a 428 class Q500 engine which need to spin 20000rpm+ to work properly. It is a 426 class engine and its meant for a "normal" 8.75"x8.5 prop (not the small carbon ones) and spins it at about 18000-19000rpm.

    Thanks for the info.

    Chris
    I agree with Airraptor here. To go fast one has to look at the complete package. For any engine that makes it's peak power at anything over 17,000 RPM you need a clean airframe otherwise you just won't get the engine to unload in the air into it's powerband. If you do it will be too small a prop to pull the airplane. IMO if I were to build this one and want to get it into the 140 mph area I would start by beefing up the wing by making sure the wing spars and wing socket are a unified unit then when assembled I would roughen up the wing tube and epoxy the wing in place. I think anything short of this will cause a failure. Plug in wings are just not well suited for high G turns. The next thing and have been doing this on all my pylon aitplanes is make a new stab with a nomex honeycomb core and sheeted with 1/16 balsa. I then glass with 2 layers of 3/4 oz cloth. The last thing is a powerplant. YS 70 and run whatever Prop and nitro Richard Verano reccomends.
    Of course it's true, I read it on the Internet.

  21. #71
    mike early's Avatar
    Join Date
    Oct 2007
    Location
    Ashland, KY
    Posts
    2,084
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: H9 Sundowner 36

    Any new advice or stories of failures to report?
    Saito Club Member #578
    P-40 Brotherhood #62


Page 3 of 3 FirstFirst 123

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -6. The time now is 02:13 PM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.