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        Discussion Hobby city epo ventus

#1 olmod Feb 11, 2011 07:03 AM

Hobby city epo ventus
I could not resist one of these http://www.hobbycity.com/hobbycity/s...dProduct=16582 even if it means doing a few mod's ;) I'll keep you posted on kit quality ect. cheers Lez.

#2 blvdbuzzard Feb 11, 2011 08:01 PM

Looks good. I have the glass one and it fly's very well. Looking forward to your build.


#3 olmod Feb 20, 2011 07:53 PM

Recieved email that this has finally been posted, its been a long wait.

#4 olmod Feb 23, 2011 09:27 PM

6 Attachment(s)
Good news ,it arrived and just going through the box,
parts do have a nice gloss finish:) no instructions which par for the course but who grizzles at this price.
Dead lucky with the damaged box it even went through the second box.

#5 olmod Feb 24, 2011 12:50 AM

The folding prop was not included and it looks like a 40mm prop hub will be needed and the foam end shape is not a true circle.

#6 olmod Feb 24, 2011 06:27 AM

I will do a weigh up of all parts in the morning to late now 11.30pm.

#7 blvdbuzzard Feb 24, 2011 10:57 AM

Looks good so far. What power setup are you going to run?


#8 olmod Feb 24, 2011 04:10 PM


Originally Posted by blvdbuzzard (Post 17504773)
Looks good so far. What power setup are you going to run?


I will wait until all the weights are totalled ,this is a very slick bird and is not going to require much power.
as a comparison I have a windrider fox epp thats powered by a tripple 20 custom built motor @~ 200watts it climbs quite well near vertical.

#9 olmod Feb 24, 2011 04:50 PM

Weigh in found one wing 4.5g heavier than the other .
total weight of parts 457g
taiplane area 41.25 sq inches.
wing area 336 sq inches
the moment arm is 17.5"
The cord average of the wing is 4"
The 6 servos @9g
and 1 servo @17g
= 61 g to be added plus decals .
total weight ~ 520g .. power system to be added.
This a very high aspect ratio ship and with such a small tailplane area My bones are telling me that the CG is going to be forward and sensitive.

#10 olmod Feb 25, 2011 03:44 AM

6 Attachment(s)
I decided to try and keep everything light on the power side ,the pix will progress.

#11 BJ64 Feb 25, 2011 05:31 AM

Can we post stuff on non-powered gliders here too, Les?


#12 olmod Feb 25, 2011 11:35 PM

3 Attachment(s)
More pix and a couple of mysteries the battery tray on the left has an has a T shaped appendage Never seen anything like that before :confused:
The other is 2 small ~3/4" pieces of laser cut ply that can be assembled into what I thought maybe a pushrod hangar but where it belongs :confused:.

The turned allum piece is the wing joiner ,just got to make sure the grub screws are facing forward when gluing into the first half, i think I shall relace them to a slightly larger size as I dont have an extention for key sizes that darn small.

#13 olmod Feb 26, 2011 08:03 PM

Mysteries solved ,the battery tray must be installed in the opposite orentation as in the pix, the T shape is to used to hold one end of a rubber band wich is then hooked on to the bottom of the canopy floor where the other mystery pieces are glued into forming a hook for the rubber band.

#14 olmod Feb 27, 2011 05:32 AM

2 Attachment(s)
I did remove the deck on the undercarriage and turn it over this allows all the parts to be glued in to finnned half of the fuselage.
The rods that are being glued into the motor mount are some 3mm fibre glass I had on hand is a reinforcing of my own conception.
I am using the HK bluebird BMS-306BB servos which fit the cavities and I have had no problems with them in the past plus an MG9 for the wheel.

#15 olmod Feb 27, 2011 10:36 PM

Joined the 2 halves together using Formular 560 canopy glue ,this product dries clear stcks well and while wet wipes up with a damp tissue and gives plenty of time to check alligment.
The wing control surfaces are decidedly stiff ,I made mine a bit freer by inserting a 1.5mm wire into the larger V groove and stressing the alleron/flap against the wire plus a lot of flexing ,a single pass with one of these http://www.hobbyking.com/hobbycity/s...dProduct=10124 along the hinge line also helped.

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