Flitzer Sport Flying Association


Robert Nilsson's Super Goblin

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October 9, 2008 - Goblin update #1

Hi all,

Since there is a big progress report from everywhere, why not one from over here. My progress may not be of big measures but some parts have been made.

Also while doing the aileron test pieces I found a problem with my lower wing rib, so I had to make a new one...

Over and out
Robert


October 9, 2008 - Goblin update #2 - Firewall

Hi all,

Worked on the firewall, but there is some things that need more thought. The starter on a Diehl case is angled and will be close to the engine upright mount. One could make the upright mount thinner and work it from there but would loose the option of completely direct mount the engine. Here are a few images of the firewall and the Diehl case with starter (yes the wroong Diehl case for bottom mounted starter, but a top and a bottom Diehl case are the same the drilling of the attachment for the vw is different) One other thing is the space behind the exhaust port on the right side. What is the projected distance between the rear of the engine and the firewall (4", 5' or X")?

Inputs are welcomed.

Robert


October 9, 2008 - Tips & Tricks

Hi all,

Here are a few tips and tricks:

Here is my longeron bending "apparatus". Just a big wing rib bending radius. Just look at the Goblin fuselage and it looks just like a big wing profile! The white tube in the background is the hot water "SuperSoaker" for longerons. Just bend slowely. It had some spring back but could easily fit in to the jig.

Full of tricks...well just a few simple ones, but they works for me!

Robert


October 11, 2008 - Steps

Hi,

This is something I tried out with my mock-up. Getting in and out and figured out that an extra step was needed to get in and out of the Goblin.

Putting the right foot on the lower wing and then the left foot in the foot step on the fuselage and then swing the right leg over the aft fuselage was not to easy, because the shorter chord of the lower wing on the Goblin the higher fuselage side and everything in the shadow of the upper wing.

Placing the left foot in the fuselage step was not possible even for a younger guy. It is just to high up.

So with the help of Lynn, a second lower step on the fuselage was figured out. (Shown in green on one of the images, the red is on the drawings and the blue was a suggestion alternative to the green one).

Hopefully that will be sufficient to have an extra foot step to make it easier to get in and out of a Goblin. Right foot (in the green), left foot (red), aim head between the cutout in the upper wing grab cabane and swing right leg over aft fuselage, step on seat swing the other leg in and sit down. Getting out in the reverse order, maybe tricky to find the steps while climbing out but would work with some training.

(soon I have done steps that airplane companies does with a new design (with the exception of the design and drawings): scale model (check), mock-up (check) and the real thing (in slow progress), test flying (still to come)!)

Robert


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