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.

Results 1 to 21 of 21

  1. #1

    Join Date
    Mar 2003
    Location
    Avilla , IN
    Posts
    129
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    EAC Mach1 prebuild questions

    Ok guys, just a couple of questions before I get started on this build. I have a Eureka Aircraft Mach1 and MAN plans

    Any info will be appreciated, THANKS in advance

    Spars: are they needed in the construction of the foam wings? I was planning on laminating some Carbon thread its like 3/8 inch wide from DaveBrown Products is this enough? or do i need more.

    I'm using Mechanical Retracts in this one just to keep with the Old School era of this build and i am having a hard time wraping my head around how with a single retract servo in the wing, how is the front/nose gear actuating wire hooked up and removed when transporting with the wing not attached to the plane? seems like a pain in the butt to unhook this each time. I'm thinking of using a small servo in the nose wheel bay to simplify this.

    also i have two choices of glue for sheeting the wing, both are on hand in house one is 3M 77 spray and the other is Elmers Ultimate is either one better that the other

    this is my first pattern build and i am planning on doing a build thread if their is any interest?
    -Tracey aka Pilotx
    CORSAIR Brotherhood # 62

  2. #2
    doxilia's Avatar
    Join Date
    Apr 2008
    Location
    Montreal, QC, CANADA
    Posts
    4,937
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    Spars: forget about small balsa spars in the foam wing unless used to support the landing gear block back to the root. CF is definitely the way to go. Use two under the wing, one near the 30% chord line where it doesn't interfere with anything else and another along the TE. You can optionally use another on the core top.

    Retracts: use two servos for less headaches. You might wind up with a third small servo for steering in the nose bay.

    American 3M 77 will dissolve foam. Canadian 3M 77 is a different formulation and doesn't. Regardless, I would recommend polyU (Elmer's) or laminating epoxy.

    David

  3. #3
    PatternPilot's Avatar
    Join Date
    Nov 2002
    Location
    Knoxville, TN
    Posts
    1,738
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    +1 on what David said....

    We do a .007 x 1/2 wide carbon strip top always , bottom sometimes.

    That is why I like Taildraggers...

    That's right, on the spray glue... David I have lost my Canadian vendor info for the Spray 77 do you have info for a source ?

    Elmer's polyglue the only way to do wings !! I have a set drying now.

    Scott
    CPA#2
    Scott Anderson - CPA #2 - www.ClassicPatternAssociation.com - Team Airtronics SD10G - NSRCA 529 - VRCS 236

  4. #4

    Join Date
    Aug 2005
    Location
    Prattville, AL
    Posts
    169
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    This is the inside look of one of my two Mach Ones.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Yw69095.jpg 
Views:	64 
Size:	100.7 KB 
ID:	1820145  
    Jamie
    In Bama

  5. #5

    Join Date
    Aug 2005
    Location
    Prattville, AL
    Posts
    169
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    This is my two Mach Ones, pictured with their builder, Art Azlin from Huntsville.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Tr49297.jpg 
Views:	77 
Size:	129.0 KB 
ID:	1820155   Click image for larger version. 

Name:	Pj19256.jpg 
Views:	70 
Size:	145.5 KB 
ID:	1820156  
    Jamie
    In Bama

  6. #6
    doxilia's Avatar
    Join Date
    Apr 2008
    Location
    Montreal, QC, CANADA
    Posts
    4,937
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions


    ORIGINAL: PatternPilot

    That's right, on the spray glue... David I have lost my Canadian vendor info for the Spray 77 do you have info for a source ?

    Scott
    CPA#2
    Scott,

    Just about every hardware, paint supply and art shop here carries it. But probably the easiest place to order from online is Canadian Tire.

    David

  7. #7

    Join Date
    Jan 2003
    Location
    New York, NY,
    Posts
    53
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    Damn ... thats Sexxxy

    (the Mach's ... not the builder but props to him on his skilz)

  8. #8

    Join Date
    Apr 2006
    Location
    Carrollton
    Posts
    1,655
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    Pilot,
    Go ahead and do a build thread, I for one will follow along..............

    Jamie,
    I have a dumb question for you. In the first picture you sent, what is the short rod with the ball links connected to the middle of the rudder servo for?

    David
    Fly Safe and Have Fun ! ! !
    Ultra Sport Brotherhood #22

  9. #9
    doxilia's Avatar
    Join Date
    Apr 2008
    Location
    Montreal, QC, CANADA
    Posts
    4,937
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions


    ORIGINAL: hrrcflyer
    Jamie,
    I have a dumb question for you. In the first picture you sent, what is the short rod with the ball links connected to the middle of the rudder servo for?

    David
    David,

    that's a good one. I was wondering the same thing at first and then I realized that it probably is a "servo stabilizer". The rudder servo wants to be very firm in place and one way to "cement" it is to lock the output shaft in place by using a firm short pushrod anchored to the plate. The ball links allow the servo arm to rotate but the lock rod keeps it from moving fore-aft or side-to-side.

    Jamie, please correct me if I'm wrong.

    David

  10. #10

    Join Date
    Aug 2005
    Location
    Prattville, AL
    Posts
    169
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    That's exactly right. It's a stabilizing shaft support sold by Horizon. I've heard cases where a few servo gears snap off at the point of the shaft with no support, but never seen it personally. JR' s 821 servo is the one I have heard of, on more than one occasion.
    Jamie
    In Bama

  11. #11

    Join Date
    Mar 2003
    Location
    Avilla , IN
    Posts
    129
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    still getting things sorted out for the Mach1, while finishing a 1/5 scale mustang. I hope to start in honest after the Thanksgiving hoilday...
    -Tracey aka Pilotx
    CORSAIR Brotherhood # 62

  12. #12

    Join Date
    Mar 2009
    Location
    Clinton, UT
    Posts
    7
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    What is the status of the build thread?

  13. #13

    Join Date
    Mar 2003
    Location
    Avilla , IN
    Posts
    129
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    Sorry no build thread but here is some recent shots of the project. Fell free to ask any questions.. oops two of the same pictures, and inverted perfect for a pattern Bird...



    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Om33133.jpg 
Views:	69 
Size:	94.4 KB 
ID:	1889937   Click image for larger version. 

Name:	Cx76859.jpg 
Views:	62 
Size:	94.4 KB 
ID:	1889938   Click image for larger version. 

Name:	Qn38502.jpg 
Views:	58 
Size:	103.7 KB 
ID:	1889939  
    -Tracey aka Pilotx
    CORSAIR Brotherhood # 62

  14. #14

    Join Date
    Mar 2009
    Location
    Clinton, UT
    Posts
    7
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    It looks very good. Were the any special problems encountered in the build and what engine did you mount in it.

  15. #15

    Join Date
    Apr 2002
    Location
    FPO AE, NY
    Posts
    821
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    J Strong,

    Had a question on the extended fin/rudder used on your Mach Ones. Have you notice any flight handling improvements
    over the original fin/rudder location? Looks like your stab/elevators may be larger also. Am I correct with that statement?
    Sure are nice looking Mach Ones!

    Ron

  16. #16

    Join Date
    Mar 2003
    Location
    Avilla , IN
    Posts
    129
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: EAC Mach1 prebuild questions

    Engine is O.s. 65AX not sure what pipe or header. no real issues, although the motor mount in this one, is a laminated hard wood rail. as for the extended rudder/fin, this is built from MAN plans and is a near perfect profile of them. *this is a Eureka Aircraft short kit with their foams* VERY HAPPY with this Kit. Glassing will begin soon, I still have several details to iron out like wing seat and fillet some minor shaping around aft of the canopy and raised spine. but hope to get this in the air before end of July, also a mustang Giant scale to be painted and detailed by then....
    I will try to answer any question but please let me apologize in advance for not replying promptly..
    -Tracey aka Pilotx
    CORSAIR Brotherhood # 62

  17. #17

    Join Date
    Mar 2003
    Location
    Avilla , IN
    Posts
    129
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    My Mach !

    just about ready for Clear coat
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	543.JPG 
Views:	78 
Size:	1.28 MB 
ID:	2045131   Click image for larger version. 

Name:	548.JPG 
Views:	62 
Size:	1.29 MB 
ID:	2045132  
    -Tracey aka Pilotx
    CORSAIR Brotherhood # 62

  18. #18

    Join Date
    Nov 2003
    Location
    MT SHASTA, CA
    Posts
    368
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    Wow, looks fantastic!!!

  19. #19
    KLXMASTER14's Avatar
    Join Date
    Jun 2007
    Location
    Simi Valley, CA
    Posts
    898
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    Wow! Congrats on an awesome build. I'll bet that it will fly as nicely as it looks. Good luck!

    Robert
    West Coast Regional Director- Classic Pattern Association
    Team Tailwinds
    Ultra Sport Brotherhood #162
    2014 NSRCA District 7 Advanced Champion

  20. #20
    doxilia's Avatar
    Join Date
    Apr 2008
    Location
    Montreal, QC, CANADA
    Posts
    4,937
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    Nice build PilotX and welcome to the forum!

    David
    Last edited by doxilia; 11-11-2014 at 08:11 PM.

  21. #21

    Join Date
    Mar 2003
    Location
    Avilla , IN
    Posts
    129
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    Thanks Guys.

    With the Polar vortex crap it's prolly gonna be a long winter here. so its gonna be a while before the first flights for this bird so I think i'll build another. Now what Pattern plane is next, I love the look of a Classic pattern ship...
    -Tracey aka Pilotx
    CORSAIR Brotherhood # 62


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 08:37 AM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.