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Jun 27, 2012, 06:38 AM
Registered User
domll's Avatar
Whilst still waiting for parts to arrive, decided to do some work on the hatch for access to the EDF's.

Made some 1/8" formers duplicating profiles of F8 and F9 and cut to fit over EDF's then running stingers down the length of the fuselage, CAing ( is that a word??)in place. Carefully i then cut through stringers releasing hatch skeleton and skinning with 3mm depron.
Jun 27, 2012, 07:22 AM
was geht , müssen unten kommen
Keenan smith's Avatar
wow..
Jun 28, 2012, 05:41 AM
Cajun-American
Boogie_'s Avatar
Nice work on those hatches Dom.

What fan/motors are you going with?
Jun 28, 2012, 12:18 PM
Registered User
domll's Avatar
Thanks Boogie.

Fan units are the E-flite Delta V-15:

http://www.e-fliterc.com/Products/De...ProdID=EFLDF15

It’s designed for the E-flite BL15 (or the other way round) but at a cost of over £50.00 each, decided to look for an alternative motor. The one I’ve selected is:

http://www.hobbyking.com/hobbyking/s...dProduct=18543

Here’s a little comparison list of the motors i looked at (as per data displayed with motors):
Jul 02, 2012, 12:34 PM
Registered User
domll's Avatar
Received the motors, Turnigy L2855-2800, and after a small mod to the fan casing for the wires they fit perfectly.

Wish I could say the same for the fuselage though: With the cone on the rear of the motor they are just too big to fit. Tried every way possible but they just don’t fit. Only two options available;

1) Remove the rear offending former and create larger hatch.
2) Remove the cone on the rear of motor casing.

Closer inspection of the casing makes me think it is a press fit, anyone know? Failing that I will have to spin the casing up on a lathe and cut it off.
Jul 02, 2012, 03:58 PM
Registered User
domll's Avatar
Sorted, cones unscrew, held with thread-lock and threaded anti-clockwise. Dropped in nicely now.
Jul 04, 2012, 10:06 AM
was geht , müssen unten kommen
Keenan smith's Avatar
OOOOOooohhh
Jul 08, 2012, 06:29 AM
Registered User
domll's Avatar

Help needed!!!


Well guys, I’m a little stumped at the moment with mounting the Fan units, thought I had it sorted but alas no. Thought by attaching a thrust tube this would resolve it, probably would normally but as the exit hole is the same diameter as the Fan unit I can’t slide it back allowing the fan to fit.

This is where I need some help; studying the plans I can see the Fan unit is wrapped in 1/64” ply and there are some ply rings that fit either end, pictures attached. Can anyone tell me how this is being held into place? The Womtec mini Fan has mounting lugs same as mine but on the original plans there are no rails showing as I added to mount mine….. I’m confused…. Only thing I can think of is that it glued in place but then how do I remove for maintenance?

Any help would be appreciated please as I can’t continue until this is resolved.
Jul 09, 2012, 11:38 AM
Registered User
domll's Avatar
After some thought and studying the drawings the only solution I could think of was to wrap EDF in 1/64 ply and use 1/16 or 1/8 ply rings either end. Retention would be using half circles, one for the EDF to seat onto and the other over lapping to stop tube falling out. Not show yet will be a small lug at the top of EDF rings for the use of a small screw to nip the rings close up to fire wall, hopefully preventing air leaks. Mounting lugs on EDF will still screw down onto bearers. Might need to remove the skin off the top so I can access inside, last thing I want I to glue half circles in the wrong place and the skin will be easily replaced.
Jul 09, 2012, 12:21 PM
Registered User
domll's Avatar

Theory into practice...


Have a few minutes before popping out for a while: It works so far, simple ideas work best… well, nearly always anyway. Had a little problem removing units as there’s nothing to get hold of so will fix some kind of ribbon cradle to lift out with. Just need to make rings now but that will have to wait a little while.
Jul 09, 2012, 01:30 PM
was geht , müssen unten kommen
Keenan smith's Avatar
yippeeee!
Jul 09, 2012, 02:28 PM
Registered User
domll's Avatar
Just what i thought myself when it fitted in
Jul 13, 2012, 02:00 PM
Registered User
Beautiful build. I'm really impressed with the quality of construction.

Dennis


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