Athena 3

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Lamp
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Re: Athena 3

Postby Lamp » Tue Apr 05, 2016 10:41 pm

Nice Luke, I'm looking forward to the flight!
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Lister
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Re: Athena 3

Postby Lister » Fri Apr 08, 2016 12:18 am

Got the FG bulk plate on the av bay end cap recessed and 4 pieces of aluminium tube cut for the charge holders. The red will be for the primary charge and the silver for the back up. Will be held together with two lengths of 6mm all thread and house the RRC3, easy mini, eggfinder and sjcam4000 for on board video

any suggestions on how to mount the camera? I was thinking of cutting a hole in the sled for it to sit in with a couple of support shelves that would keep it firmly in place.. but I thought someone who has done it would have a better idea of what works best :?:
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OverTheTop
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Re: Athena 3

Postby OverTheTop » Fri Apr 08, 2016 7:31 am

I find it useful to write on the charge well with a permanent marker what charge was loaded. Helps if you have to put it away for a while (week or months) when you have to re-check the setup before flying.

Likewise I label terminal blocks with Main, Apogee, Primary or Secondary, as appropriate, to reduce the chance of wiring errors.
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OverTheTop
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Re: Athena 3

Postby OverTheTop » Fri Apr 08, 2016 12:28 pm

any suggestions on how to mount the camera?

How about a 3D printed frame for the camera to bolt into the airframe :wink:
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Re: Athena 3

Postby Lister » Sat Apr 09, 2016 9:45 pm

Sounds geeat, can you print one for my 3" av bay by next weekend :mrgreen:

I just made some 1/4" launch lugs and attached them to a FG panel.. I figure I will mount one altimeter on each side but at opposite ends, egg finder at the opposite end and batteries at the other end. Which will leave the middle to be cut out to house the camera, or if I think it will weaken it too much I will just mount the altimeters, gps, batteries down one end and the camera up the other end.

Either way I will mount a tilted shelf on the cutout section for the camera to be strapped to. I will use velcro on the shelf and the camera and have the lens looking out the side of the rocket at an angle to look down. It would be far easier to mounf the camera looking straight out but I want to edit the footage with dash cam and will look better pointing down. Any ideas,
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Re: Athena 3

Postby Lister » Sun Apr 10, 2016 1:48 am

Just got the slots cut for the fins and doing a test fit before the MMT is epoxied in place, starting to look like an athena.. wow does a mitre saw make the job so much easier, saw blade is the perfect thickness to match these fins.
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Lister
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Re: Athena 3

Postby Lister » Sun Apr 10, 2016 1:13 pm

The fins have all been airfoiled except for the edges facing the fin gap and have been wet sanded ready for assembly. Too bad the CF cloth wasnt all uniform, would like to leave these fins unpainted as they look cool with the red FG core showing through at the airfoil 8)
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jase
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Re: Athena 3

Postby jase » Mon Apr 11, 2016 1:33 pm

I just finished 'restoring' the ultimate and was going to do exactly the same thing!!!

The red will look very cool on the leading edges 8)

Ken did a similar thing with 'one' of his scratch built extreme replicas in reverse - although he used a pin-stripe vinyl (along the fillets) and 'kind of' got that old SR71 feel...

SR71 red pin stripes.jpg
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...either way, cool!
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Lister
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Re: Athena 3

Postby Lister » Mon Apr 11, 2016 2:34 pm

Great minds :P how did the UDS come up.. why didn't you do the same on it? Is it going back up on saturday? :twisted:

Its an easy way to add a bit of colour to a CF fin.

I like the idea of the pin stripe along the fillet.. especially with the red edges that would look very cool.. god I love the SR-71 8)

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Re: Athena 3

Postby Lister » Mon Apr 11, 2016 11:17 pm

Decided to tint some epoxy for the last layer on the fillets. Internal and a small external fillet done with wests 105 with chopped CF and chopped Aramid tow. Then a slightly larger external fillet with wests 105/206, 411microspheres and tinted with red and a tiny bit of black. Will give the fins a clear coat when the airframe is painted to make the colour more vibrant on the fin face and red core showing at the airfoil.. got the fillet idea from something Jase said :)
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Lister
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Re: Athena 3

Postby Lister » Tue Apr 12, 2016 7:34 pm

Vinyl arrived today, used one of the black athena decals as a test on the old scratch built athena 3.. as always Krusty has done a great job and the decals look fantastic. Thanks again for these mate 8)
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jase
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Re: Athena 3

Postby jase » Tue Apr 12, 2016 8:00 pm

Lister wrote:how did the UDS come up.. why didn't you do the same on it? Is it going back up on saturday?


Compared to the post-chainsaw massacre look it came up great!

Why didn't I do the same, well, ran out of red paint.

Yep, flying it this weekend 8)

Krusty's decals are awesome :wink:
Me and my rockets run on Moonshine.

Lister
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Re: Athena 3

Postby Lister » Tue Apr 12, 2016 10:06 pm

Cant wait to see that bad boy go up again :) have 5" fillets on it this time? :D

should be an impulse filled weekend if the weather holds out 8)

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Re: Athena 3

Postby Lister » Thu Apr 14, 2016 5:06 pm

Athena is all painted, just finishing the AV bay for this weekend 8)
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SpaceManMat
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Re: Athena 3

Postby SpaceManMat » Thu Apr 14, 2016 5:14 pm

Wow thats one nice finish.
QRS: 124
AMRS: 32 L2 RSO
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