Recent posts

#31
General Discussion / Flying at TEMAC - Nov. 9, 2024
Last post by Michael - November 09, 2024, 05:02:50 PM
Low winds, reasonable temperature and a bright blue sky combined to bring out more than 20 members today. Here are a few images.

#32
Building / Construction / Re: Multiplex 100" span Flamin...
Last post by GuyOReilly - November 08, 2024, 10:29:49 PM
Have fun with the Maiden flight.
Hopefully, @Andy Hoffer will be there to document this momentous event.
Perhaps a video?
#33
Building / Construction / Re: Multiplex 100" span Flamin...
Last post by Frank v B - November 08, 2024, 10:25:17 PM
Maiden flight attempt will be tomorrow- Saturday, November 9 at about 1 pm. 
Wish me luck.

Frank

#34
Trading Post / Re: FS: GWS Formosa X2
Last post by Gregor77 - November 07, 2024, 08:45:31 PM
Thanks TEMAC Sold!
#35
Trading Post / Unionville Hobbies DHC Beaver ...
Last post by davidk - November 07, 2024, 12:26:14 AM
Unionville Hobbies Balsa DHC Beaver 72 inch Wingspan
Rimfire 46
HobbyWing FlyFun 60A
Lights and Wings struts
No Receiver
Excellent flyer
$250
#36
Building / Construction / Re: Multiplex 100" span Flamin...
Last post by Frank v B - November 06, 2024, 07:13:52 PM
Andy,

That sounded like a compliment.  Are you OK?

I had two options:
1) Follow Andy's advice.  From your post: "some simple but delicate soldering to reverse the electrical connections of the motor and potentiometer inside the servo". I don't open servos and change things..for the same reason I don't do open heart surgery even though it is only plumbing.
2) Buy a $10 servo reverser. Plug in one end.  Plug in the other end and it works.

The $10 servo reverser is the insurance premium on a $300 glider.
Such a deal.

Frank


#37
Building / Construction / Re: Multiplex 100" span Flamin...
Last post by Andy Hoffer - November 05, 2024, 01:35:18 AM
Hey @Frank v B ,

Beautiful build and superb build thread.  See my post about reversing a servo (https://temac.ca/smf/index.php?topic=9105.0); you don't need a servo reverser.  You just need to reverse the leads on the servo motor and servo potentiometer inside the servo.  Glad to help out if needed. 

Cheers!

Andy
#38
Building / Construction / Re: Multiplex 100" span Glider...
Last post by Frank v B - November 03, 2024, 09:20:39 PM
It has been a while but the plane is ready to maiden:
- installed the radio/motor/esc.
- made all the servo connections (spoilers, ailerons).  One spoiler servo needed a servo reverser because of the awkward servo location (2 servos connected into one channel via a Y connector).
- programmed the radio...as much as I program (reverse and throw).  I do not use dual rates or exponential.  I program with enough throws to safely fly the airplane and return it to earth in one piece....based on my guess.  I never program to throws in the instructions.
- tested the motor.  Will do the maiden on 3 cells.

Hopefully maiden it next weekend.  Have to channel Glenn for the maiden.

Frank
#39
Building / Construction / Re: Sr. Falcon EDF Power - Kit...
Last post by Michael - November 03, 2024, 06:02:22 PM
Looks amazing!

Based on my experience with kit-bashed twins, I would leave the trust line at 0/0 with the flat bottom of the wing.

It looks like it will be a smooth flyer, likely needing a fraction of throttle to fly.

Very nice!
#40
Building / Construction / Re: Sr. Falcon EDF Power - Kit...
Last post by Frank v B - November 03, 2024, 04:37:59 PM
Per your usual practice, the next post will be the test run on the floor of your shop.  Should be interesting.
What did your research show about thrust line angle of the motors since they are under the wing.  Are they 0/0 or some down thrust to avoid 737 Max 8 issues?
I have sent you a note about some checklist items/questions.

Frank