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Goblin 700 › Factory drilled holes in goblin black nitro
08-27-2017 01:19 AM  15 months agoPost 1
AaronBmore

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baltimore,md, usa

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So folks, I have been searching and searching to find what these holes are for. They look like they are meant to have some kind of 2 bolt flange mounted thru them. Know what I'm referring to?
In the manual it is where you stick your fuel tubing thru then plug the tubing. On both the pressure hose and the carb supply sides.
It looks like they drilled two hole to mount some kind of fitting to perhaps to release pressure easily or fill easier. So far the function of the two small bolt holes around the large holes is a mystery to me and therefore frustrating AF. Give me some expertise people!!

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08-27-2017 02:11 PM  15 months agoPost 2
AaronBmore

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baltimore,md, usa

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No one with a goblin black nitro has ever looked at these hols and thought.... why?

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08-27-2017 02:35 PM  15 months agoPost 3
Dan Minick

rrKey Veteran

Columbus, WI

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Are these holes in the manual pictures? You could post a screenshot for others to see what you are taking about.

Team Synergy, Team FBL Rotors-------if its not broke...it will be!

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08-27-2017 04:08 PM  15 months agoPost 4
Pistol Pete

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Seffner, FL

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Looking at bottom photo on page 21 of manual, he is referring to the three holes. One large with two opposite small ones "similar" to the engine mounts which only have one large and one small hole.

On the right side frame, its located at the 7o'clock position from where the fuel line goes throught the frame.

There is also another similar set (same photo) below the fuel tank clunk position

As per manual, it is not used.

In other models, some holes are through access to get to a fastener while others just a hold down position for when frame is being cut.

I would just finish building it and go fly.

~~Enjoying the hobby one flight at a time~~

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08-27-2017 04:34 PM  15 months agoPost 5
AaronBmore

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baltimore,md, usa

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Thank you pistol Pete. Very concise description. I tied to load the pdf of the manual and my iPad crashed several times.

It is built and flies amazingly. I love this Heli. But the reason I'm asking about these holes is so far I have to remove the canopy to refuel. If there is a fuel dot meant for those holes I could fill the tank while the canopy is on.

I dont WANT to break it!

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08-27-2017 06:00 PM  15 months agoPost 6
Dan Minick

rrKey Veteran

Columbus, WI

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I have never seen a heli manufacturer recommend fuel line plumbing. If you would like to use a fuel dot I would go ahead and plumb one in. Half the allure of nitro is fuel and go, I would not be happy removing the canopy either.

Team Synergy, Team FBL Rotors-------if its not broke...it will be!

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08-28-2017 03:43 AM  15 months agoPost 7
AaronBmore

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baltimore,md, usa

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I would think that if the manufacturer drilled holes in that configuration, they had something that they had in mind. Cmon goblin... what goes there?

I dont WANT to break it!

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08-28-2017 04:21 AM  15 months agoPost 8
Dawiev

rrApprentice

Middle East

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There was talk of a 3-way valve in the beginning and likely what would've gone in there.

They obviously abandoned the idea, but didn't follow it thru with the elimination of the holes in the frame.

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08-28-2017 09:00 PM  15 months agoPost 9
Pistol Pete

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Seffner, FL

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There was talk of a 3-way valve in the beginning and likely what would've gone in there.
...and the ones in the back under fuel tank?

I would run fuel line to the one in the back and use Kwik-Fill Fueling Valve in order to not having to remove canopy.

http://www.gravesrc.com/dubro-kwik-...-valve-gas.html

Food for thought.

~~Enjoying the hobby one flight at a time~~

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08-30-2017 11:57 AM  15 months agoPost 10
AaronBmore

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baltimore,md, usa

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I have that very fuel dot. I'm thinking of widening the hole in the frame out and installing one. My only concern is, will it hold the pressure of a pressurized fuel system reliably. I have yet to see one being used on a Heli that is pressurized. Guess it can't hurt to try it out.

I dont WANT to break it!

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08-30-2017 05:46 PM  15 months agoPost 11
Pistol Pete

rrProfessor

Seffner, FL

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FWIW, Glow "airplane" fuel system are also pressurized.

You can test before committing to making hole bigger.

~~Enjoying the hobby one flight at a time~~

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08-30-2017 07:02 PM  15 months agoPost 12
AaronBmore

rrNovice

baltimore,md, usa

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Hey Pete,. I do know that they are pressurized on glow powered planks, I have a few. That being said I believe that it's a higher psi with crack case pressurized systems.
I will be testing it out soon. First I have to fix my boom...... Emergency auto from 20 feet high stretched to the max to make it back out from kale field. No damage but a quarter size nick in brand new boom. Boom strike

I dont WANT to break it!

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