Toronto Electric Model Aviation Club Forum

Toronto Electric Model Aviation Club (TEMAC) => Building / Construction => Morphine Build Class => Topic started by: piker on October 18, 2014, 09:12:16 PM

Title: Morphine Build Group
Post by: piker on October 18, 2014, 09:12:16 PM
O.K.  Things are coming along.  I have a new set of plans drawn up and a full, step by step instruction sheet written. I also have a Bill of Materials, a required tools list, and recommended equipment list written.


I plan to build (to ready for covering) a Morphine based on these plans and instructions to make sure I haven't forgotten anything, and that everything fits together based on the plans.  I will build a second Morphine that will be a little less complete to show the internal construction, and a set of parts for a third, showing the starting point and the wing sheeting process (although the instruction describe it too)


I will provide, here, in a couple of days, the Bill of Materials so those attending the build session on the 27th can have their wood purchased and ready to start.  I'll have copies of the plans, wing cores, and instructions ready for the 27th.  Note that in order to build the fuselage, you have to have your motor with you, or at least a motor that represents a typical motor.  This is so you can roll a ply motor tube around the motor


If you'd like to get your plans early, so you can start cutting out the parts and build along with me at the build season, I can probably arrange to get them to you.  I'll see if I can get copies made on my way to the MAAC AZM tomorrow.


I've created a system for mass producing cut wing cores and based on my first trial cut it seems to work very well, and the delicate little core is very accurate.  I just need to find some time to set it up in my garage and start cutting.  I'll have the cores ready for the build session on the 27th


One of my primary objectives with this planes was to create a smooth flying, sleek, racer that is quick and easy to build.  I think you guys will have fun with the build.
Title: Re: Morphine Build Group
Post by: sihinch on October 18, 2014, 11:58:51 PM
I went to A&J today and Pinnacle last week. Local balsa stocks for square and triangle stock aren't great. Sheets were well stocked at A&J.

Getting all the wood for 27th may be a problem.
Title: Re: Morphine Build Group
Post by: piker on October 19, 2014, 12:40:07 AM
The Morphine doesn't use triangle stock.  I went with 1/4 square on the plans.


I cut my 1/4 square stock from 1/4" sheet.  I actually prefer that way as it's a way of getting lighter sticks.


If anyone has a hard time finding 1/4" square, get some soft 1/4" sheet and bring it to the build class on the 27th.  I'll bring my balsa stripper.



Title: Re: Morphine Build Group
Post by: Crazyflyer on October 20, 2014, 04:02:28 PM
Hi Guys,
Has anyone in the group been using a Hobbyking motor competitively this year for the Piker racing?   ???
Can you let me know which motors are used so that I can compare specs?   :-X
Thanks,
Stephan
Title: Re: Morphine Build Group
Post by: battlestu on October 20, 2014, 04:42:10 PM
Hi Stephan... i was using this guy from HK:

http://www.hobbyking.com/hobbyking/store/__15187__S2838_2800_Brushless_Inrunner_2800kv_.html (http://www.hobbyking.com/hobbyking/store/__15187__S2838_2800_Brushless_Inrunner_2800kv_.html)

it ran alright but a few dirt naps later it was sounding a little ruff.
Greg
Title: Re: Morphine Build Group
Post by: Crazyflyer on October 20, 2014, 05:19:28 PM
Thanks Greg, that is the one I was actually thinking about but wasn't sure how competitive I would be.  I hear that some are going with higher amp motors (higher than recommended for the ESC since you only get spikes during launch and strong turns).

Anyone else willing to share their specs?


Quote from: battlestu on October 20, 2014, 04:42:10 PM
Hi Stephan... i was using this guy from HK:

http://www.hobbyking.com/hobbyking/store/__15187__S2838_2800_Brushless_Inrunner_2800kv_.html (http://www.hobbyking.com/hobbyking/store/__15187__S2838_2800_Brushless_Inrunner_2800kv_.html)

it ran alright but a few dirt naps later it was sounding a little ruff.
Greg
Title: Re: Morphine Build Group
Post by: battlestu on October 20, 2014, 05:38:44 PM
not sure if an HK motor is going to hit the spot (motors are not very efficient) Rob passed me this motor (still need to return):

http://www.e-fliterc.com/Products/Default.aspx?ProdID=EFLM2005

and i'm pretty happy with it and will look at getting one or two of my own.

Greg
Title: Re: Morphine Build Group
Post by: sihinch on October 20, 2014, 05:48:04 PM
I run Mega 16/15/3 and 16/15/4 and HET 3W
Title: Re: Morphine Build Group
Post by: piker on October 21, 2014, 02:22:52 PM
For Simon and anyone else who may be interested.  Here's the airfoil I'm using for the Morphine cores:

Title: Re: Morphine Build Group
Post by: sihinch on October 21, 2014, 04:04:54 PM
What's interesting is that this airfoil is designed for flying wings and tailless aircraft. So I guess it must have a very low moment coefficient.
Title: Re: Morphine Build Group
Post by: piker on October 21, 2014, 04:43:55 PM
Ya, and it looks about right   ;D
Title: Re: Morphine Build Group
Post by: Eric Adventurer on October 21, 2014, 10:37:29 PM
>>> What's interesting is that this airfoil is designed for flying wings and tailless aircraft
Simon, is that so that you can continue flying even after a mid air that would have claimed the tail of your craft?  ;D


Eric AKA "First 1/2 of your local synchronized aerobatic team"
BTW, Loved the comment Simon. Sorry I couldn't oblige on demonstrating the mid-air. Need more training one that. When are you and Cadez flying together next? ;-)
Title: Re: Morphine Build Group
Post by: Bigstik on October 26, 2014, 08:24:39 PM
Any pictures of the Morphine? Sounds hot
Title: Re: Morphine Build Group
Post by: piker on October 27, 2014, 10:10:45 AM
Hey Alan,

There's a picture I just took in the parking lot at work.  In other word, not the best composition, but you get the idea  ;D

Title: Re: Morphine Build Group
Post by: piker on October 27, 2014, 10:15:10 AM
And here are a couple of shots of the wing cores under construction.

The first picture is of the messy job of chopping the foam sheets into blocks on the table saw.  Ugh!

The next is of the 60 cores (30 left and 30 right), ready for the build class tonight.

It's going to be fun!  I hope everyone can make it!
Title: Re: Morphine Build Group
Post by: battlestu on October 27, 2014, 11:30:34 AM
so the cores with the  big "X"s on them are going to Simon right :)

Thanks Rob and Jack... looking forward to tonight!
Title: Re: Morphine Build Group
Post by: piker on October 27, 2014, 11:53:12 AM
Yes.  Those are the "special" cores for Simon   ;D
Title: Re: Morphine Build Group
Post by: electroflyer on October 28, 2014, 10:43:35 AM
   Hey Rob,

   Thanks for the wing cores and drawings, Looks like a great replacement for that which shall remain unnamed for fear of it coming back to haunt me.   lol

    Glenn
   
Title: Re: Morphine Build Group
Post by: piker on October 28, 2014, 02:29:37 PM
That plane that shall not be named got us through many exciting races  ;D

I'm glad you were able to stop by last night.  It was fun.
Title: Re: Morphine Build Group
Post by: piker on October 28, 2014, 02:45:59 PM
Well, I have to leave for Tucson tomorrow (Oct 29) and won't be back until Friday, November 7th, so I won't be able to add any more pictures to the build instructions.  But if you start based on the instructions, the plans, and check the adjustments post, you should be fine.  I'll check here as I'm away so if you have any questions, please ask.

If you don't have your cores yet, you can start on the fuselage and tail, then get onto your wings when I get back.

However, we DO have a bit of time before the next race  ;D
Title: Re: Morphine Build Group
Post by: sihinch on October 29, 2014, 05:51:06 PM
Really sorry I missed the morphine build kick-off. I've been ill the last few days.

I can't wait to get my specialty wings.

Look what I did with the last "special" racing wings that I had lying around.....
Title: Re: Morphine Build Group
Post by: battlestu on October 30, 2014, 09:35:56 AM
T tail ...very cool!!
Title: Re: Morphine Build Group
Post by: Papa on October 30, 2014, 11:13:44 AM
Is the photo distorting the size of the tail? If not it looks proportionately much bigger than i would expect.


Glad to see you are improving.


Jack.
Title: Re: Morphine Build Group
Post by: sihinch on October 30, 2014, 12:50:52 PM
I think it's mostly distorted by perspective but it is bigger than I think it could be.

The wing made for this model is 210sq.in and mine is only 180sq.in.