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 1 of 3 123 LastLast
Results 1 to 25 of 64

  1. #1

    Join Date
    Oct 2006
    Location
    Mt. Airy, NC
    Posts
    1,728
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    Strongest 46 engine

    So, there is a limit to a glow engine running 15% fuel with a max displacement of 0.46 cubic inches. So, it's not just a "46-sized engine"....it's MAX displacement. The engine will be flying a VERY underpowered/overweight plane. Something like 8 pounds of plane plus 16 pounds of payload. It's for a collegiate competition, so don't think I'm some sketchy guy hoping for revenge on anyone.

    Any recommendations on where to start looking? There's no real budget, but "reasonable" is the best limit on cash-flow.
    Tact is for people not witty enough to use sarcasm.

  2. #2

    RE: Strongest 46 engine

    For Starters OS 46AX
    www.staustelldmc.org.uk

  3. #3

    Join Date
    Oct 2006
    Location
    Mt. Airy, NC
    Posts
    1,728
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    That was one of my first thoughts.  My other thought was, just because there is no takeoff requirement, a Jett46.  I know they're not optimized for slow, heavy planes....but there is more power.
    Tact is for people not witty enough to use sarcasm.

  4. #4

    RE: Strongest 46 engine

    Just a thought, you could put the OS in anything else you have in the future that would suit.
    www.staustelldmc.org.uk

  5. #5

    Join Date
    Aug 2009
    Location
    Grapevine, TX
    Posts
    5,289
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    The Rossi .45 glow engines are the strongest ones out there. They can run really good with zero nitro glow fuel too.
    Of course the Jett .46 is probably the fastest engine around. But I think the Rossi will out do it for torque and pulling power though.


    Club Saito #722, Sig Kadet Brotherhood #80, GlowHead Brotherhood #14,
    AMA # 928076

  6. #6

    Join Date
    Oct 2006
    Location
    Mt. Airy, NC
    Posts
    1,728
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    The group purchasing this engine is a college-level design team.  There would be no need to move it to another plane.  Even if they want to reuse it, the competition always calls for a 46.

    Another "tier" is a .61 max.  Any thoughts there?

    Thanks, I'll put the Rossi on the list.
    Tact is for people not witty enough to use sarcasm.

  7. #7

    RE: Strongest 46 engine

    The Rossi . 45 does 2.1 hp and 16K max The OS does 1.6 at 16K. Though, more revs usually means more power.
    www.staustelldmc.org.uk

  8. #8

    Join Date
    Oct 2006
    Location
    Mt. Airy, NC
    Posts
    1,728
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    Well, rated horsepower is about as useful as a poopy-flavored lollipop.  Manufacturers SUCK at maintaining consistency with how they rate rated power.
    Tact is for people not witty enough to use sarcasm.

  9. #9

    RE: Strongest 46 engine

    Your prop selection could be critical
    www.staustelldmc.org.uk

  10. #10

    Join Date
    Oct 2006
    Location
    Mt. Airy, NC
    Posts
    1,728
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    It most certainly will be.
    Tact is for people not witty enough to use sarcasm.

  11. #11

    Join Date
    Oct 2006
    Location
    Mt. Airy, NC
    Posts
    1,728
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    Sorry guys, I misread the rules.  They're given a model of engine they're supposed to use.  I think it's a 46AX.

    Any idea if a 46AX reacts well to a tuned pipe?
    Tact is for people not witty enough to use sarcasm.

  12. #12

    RE: Strongest 46 engine

    I found herethis if it helps
    www.staustelldmc.org.uk

  13. #13

    Join Date
    Oct 2006
    Location
    Mt. Airy, NC
    Posts
    1,728
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    Awesome!  Thanks!!
    Tact is for people not witty enough to use sarcasm.

  14. #14

    RE: Strongest 46 engine

    Let us know how you get on and the result please
    www.staustelldmc.org.uk

  15. #15
    Moderator blw's Avatar
    Join Date
    Mar 2004
    Location
    Opelika, AL
    Posts
    8,207
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    Reasonable budget?

    Evolution .46 with OS A3 plug and a discontinued Tower's muffler.

    Yeah, I know. Discontinued. Worth looking for though.
    The ultimate responsibility of pilots is to fulfill the dreams of the countless millions who can only stare skyward...and wish.

    "It doesn't take but one Auburn man to be a majority" -Coach Pat Dye

  16. #16

    Join Date
    Oct 2006
    Location
    Mt. Airy, NC
    Posts
    1,728
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    As far as reasonable budget, I meant under $1000.  However, as I posted above, I think that the model of their engine is specified as an OS46AX.
    Tact is for people not witty enough to use sarcasm.

  17. #17

    Join Date
    Aug 2009
    Location
    St. Cloud, FL
    Posts
    438
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    +1 on what Earlwb said.

    Craig

    Edit: Didn't see the OS.46ax rule untill after placing this post.

    Ultra Sport Brotherhood #10
    Revver Bro #263
    Tiger Club #26

  18. #18
    Moderator blw's Avatar
    Join Date
    Mar 2004
    Location
    Opelika, AL
    Posts
    8,207
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    Yeah, I missed the $1000 budget and it being a collegiate competition.

    My wife would argue about a $1000 budget as being reasonable. I wouldn't tell her that part.

    Do you mean an engine similar to the OS 46? There are a lot to choose from if so. The Evo 46 may displace something like .467, or around there anyway.
    The ultimate responsibility of pilots is to fulfill the dreams of the countless millions who can only stare skyward...and wish.

    "It doesn't take but one Auburn man to be a majority" -Coach Pat Dye

  19. #19

    Join Date
    Oct 2009
    Location
    Cottonwood, CA
    Posts
    17
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine



    Ash Creek RC flyer.com we have a club race and we use the World Models Sky Raider with the OS 46ax and the prop that works the best is Master Air Screw 10x7 we have used all kinds and this seems to be the best. 15% is perfect fuel to use.


  20. #20
    AJsToyz's Avatar
    Join Date
    Feb 2006
    Location
    Maybee, MI
    Posts
    2,708
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    My favorite is still the old K&B .48, could always run the pants off my buddies 50SX.

    I wonder how well the Tower muffler would work on the .46ax? I bet you could gain some power with a Jett muffler.

    Andy
    ULTRA SPORT BROTHERHOOD #120
    GOLDBERG TIGER CLUB #10
    CLUB SAITO #590

  21. #21
    1QwkSport2.5r's Avatar
    Join Date
    Oct 2006
    Location
    Cottage Grove, MN
    Posts
    4,672
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    If something other than an OS can be used, I wouldn't shun the Thunder Tiger Pro .46 or a Fox .45. If a .60 sized engine can be used, then I would say Fox Eagle IV .60.
    GlowHead Brotherhood #3
    Happily running Dynamite, Enya, Fox, Jett, K&B, SH, Super Tigre, Thunder Tiger, Traxxas.
    I will trade my OS .10FP for an Enya or..?

  22. #22

    Join Date
    Jul 2011
    Location
    Reedsburg, WI
    Posts
    511
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    So it has to be the OS 46AX. I have 2 OS 46 FX, one with a tuned pipe.
    The pipe will give you more power in a certain rpm range, but also increases fuel consumption, I don't know how important run time and weight will be for you.
    Also the prop size will be very critical as well as the fuel type / nitro contend. The pipe makes the engine more touchy, harder to tune. It might be necessary to adjust the needles between flights to get the engine to put out the most power. A rpm meter helps a lot

  23. #23

    Join Date
    Jan 2002
    Location
    Ringgold, GA
    Posts
    11,479
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    To my way of thinking, "they" should have specified a Sanye .46 with the stock muffler. That would have kept the price reasonable and would have provided the contestants with a good engine for future use in other projects. Don't get me wrong. I do love OS engines. Just not their ridiculous prices. You know, Tower Hobbies got their foothold in the business world by providing brand name gear at the lowest possible prices. Who'd a thunk it?


    Ed Cregger
    \"Practice makes prefect\"

    Saito Club Member #52

  24. #24
    Sport_Pilot's Avatar
    Join Date
    Jan 2002
    Location
    Acworth, GA
    Posts
    13,118
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    I have read the rules below:

    http://students.sae.org/competitions...ules/rules.pdf

    I assume that this is the advanced class which is limited to .46 max size. Nobrand is mentioned. An intrestingfact is thatthoughthedisplacement is limited to .46you can use as many engines as you want. Also you can use a tuned pipe.Gear reduction is allowed. How about a helicopter head to help? A hybrid? Multiple rotor helicopter? Seems to be a lot of possibilities.

    Since Fox is known for both high power and torque with low nitro fuel (less fuel so smaller tank and weight), and is rather light, I would think that this is the very best engine for this class. Not sure if the 46 is available (it was previously but not shown on their site.but if it is then it is timed for a pipe. Fox has been known to report their engines for pipes so the45 is also a possibity. Jett has also known to report their engines for thecustomers requirements. If you tellFox or Jett the competiton rules and talk to their engineering departmentthey may be abletocustom make the engine. I do not see any restrictions in the rules on this. Idoubt OS, TT, Magnum, or others would do this, but you never now.l I would call all of theengineering departmentsofas manycompanies I could and pick the one thatseems easiest to deal with.

    I don't understandthe scoring for the cargoweight. A plane that carries 15 pounds will have a score of 1 over 9, a plane that carriesno payloadwill have a score of 26 buta plane that carries greater than 30 pounds will have a score greater than 26.This and the emptyweight score is subtracted from the drop score (which is a negative number if thesand bag is closerthan 50 feet from the target,soIguess the low score wins.Whew! Because of this I am not sure if mutiple engines would be of much asset or not. It would surely be less reliable, though a centerline twin might help.FPV is used with some type of sighting system is used! Talk about cool!

    Glow Head Brotherhood #15

  25. #25
    Deandome's Avatar
    Join Date
    Sep 2003
    Location
    Libertyville, IL
    Posts
    1,252
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Strongest 46 engine

    I just ordered a gently-used .46AX from the RCU classified the other day. There are several others...maybe even a NIB one, so take a look.

    That said....

    I took a long, hard look at both the JETT 46 (which is being discontinued, so it's 'only' $250 now, but you need to call to see if they have any left), and a new (2011) Rossi .46, the R46CR I made a post asking about this engine here in this forum, but nobody replied. It's only $195, fully made in Italy, and pretty sweet looking.

    Apparently, it's a completely different beast than the 'high-strung' racing & pattern engines they've been known for for decades. According to Allen Worley @ PlanetHobby:
    Dean: This engine is custom made for your requirements [reliable/easy to use & tune] as I see it. It is a different type of engine than those made for speed and racing events. Very user friendly.
    It's a whole new line for Rossi, ranging from .26 to .91 (see their 2012 catalog, starting at page 9 or so )

    And from and email Novarossi in Italy sent me (nice customer service:
    The CR MODELS are the smoothest and best running engines we have ever seen in the R/C industry. Everyone involved with the test, which included some very experienced flyers, agreed that these are really excellent engines.
    They are powerful, low in vibration and extremely responsive in the transition from any speed.

    Tech tips for 46 CR
    Fuel:
    10% Nitro & 20% oil (Β½ castor & Β½ synthetic)
    Prop. 10 x 6 – 11 x 6 or 10 x5 do not change low speed idle from factory setting. High speed needle close also on setting.
    Notes:
    The .46 is very easy to start typically 1 or two hand flips. Very low o vibration - smooth. Engine’s stable thru flights with no changes throughout maneuvers. Powerful yet low noise
    Thank you
    Will somebody PLEASE buy one so you can tell us what you think?
    \"I feel like I\'m taking CRAZY PILLS!!\" Mugatu


Page 1 of 3 123 LastLast

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 08:05 PM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.