Messages

31

Thermal / Flat field / Supergee type DLG build

« on: February 14, 2012, 14:38:48 PM »

So fuse has gotten resin and will do the laminate this evening when the resin has gelled.



So the wing.. Well the aim was to make something that is useable and I'm pretty happy that I've achieved that. It's far from perfect and I can see a few things I'd change straight away. Having said that it's not a millions miles away from the one I bought last year. They are a lot of work to make but the finish is really nice. Next one should be a lot quicker.  

Here it is out of the bag. Needs to be trimmed

32

Slope Soaring / Quark 2M - Back to cutting innocent trees!

« on: February 14, 2012, 14:28:31 PM »

Wow. Thats very cool Fred.

33

Thermal / Flat field / Supergee type DLG build

« on: February 14, 2012, 11:38:29 AM »

Be happy to help Keith. We'll have a chat and formulate a plan.

34

Thermal / Flat field / Supergee type DLG build

« on: February 14, 2012, 11:36:51 AM »

Thanks JP. I'm goin, I'm goin!  

35

PSS / MIG 29

« on: February 14, 2012, 11:35:13 AM »

Love it JP. 8)  

and yes Brian we are a bunch of loonies!!

36

Thermal / Flat field / Supergee type DLG build

« on: February 14, 2012, 10:33:38 AM »

I’m not sure exactly how you’re making these wings, :?:  presumably by vac-packing the composite onto the foam?
But that must mean you have a vacuum pump, yes?

Thats a yes and a yes Keith.

Wonder if that wind is north enough for the North slope tomorrow? I'll be in touch.

37

Thermal / Flat field / Supergee type DLG build

« on: February 13, 2012, 22:57:52 PM »

Thanks Alan. Did the layup on the table as the wife and small one are away. Then moved to another room for the bagging.

Fuse pod in the parting board ready to go. First side tomorrow hopefully. Got to keep going. If i stop it'll go back on the shelf for who knows how long!

38

Thermal / Flat field / Supergee type DLG build

« on: February 13, 2012, 18:59:07 PM »

1.5metre
Area: 21.75 sq.dm
Loading (at target weight): 11 g/sq.dm
Target weight 250grams
Profiles: AG 45,46,47

39

Thermal / Flat field / Supergee type DLG build

« on: February 13, 2012, 15:29:21 PM »

Hey Frederic.
Yeah pod and boom. Have a few booms. Will start fuse today.

40

Thermal / Flat field / Supergee type DLG build

« on: February 13, 2012, 00:39:34 AM »

If you heard a strange sound off in the distance earlier that was probably me screaming. Left my wings on the cnc table while i was cutting mylars. Computer was asleep. I pressed a button to wake it up and turned back to the mylars. Heard a sizzling and turned to see one of my wings melting! Long story short I was down a wing and not very happy   :!:  :!:

thankfully i cut two sets. :cry:  :cry:


Mylars cut


Making composite fabric. Kevlar and fibreglass


Ready to layup the wing


Finally in the bag


That was a lot of work. Should be a lot quicker next time as I have the mylars and kevlar ready to cut and i know what i'm doing a bit more(kinda)  :wink:

41

Thermal / Flat field / Supergee type DLG build

« on: February 12, 2012, 14:01:25 PM »

So after the bones of a year off gliders I returned to the workshop.  I started to make a plug for a Quark 2m fuselage then found a bunch of materials I bought for another project and decided 1. Fred's quark is perfectly fine the way it is as a built up kit and 2. to start building some DLGs  :lol:

Design is standard Drela Supergee type affair.

Cut two set of cores on Friday. Took a few goes to get the file and the settings right but am fairly happy with the results.

Hot off the cnc


Trimmed, shaped and sanded


Packed the otherhalf and small one off to Engerland for a few days this morning so plan is to get stuck in and have them in the bag by this evening.
Mylars next....

42

Club Talk / A Sticky Topic

« on: February 05, 2012, 16:13:05 PM »

As always I shall endeavor to make your life a little less drab Keith  \/

43

Club Talk / A Sticky Topic

« on: February 05, 2012, 08:45:04 AM »

Oops! Sorry Keith.
To answer your questions
I never left
Probably
Hard to say.

It's good to be back

44

Club Talk / A Sticky Topic

« on: February 05, 2012, 08:26:39 AM »

Basically:
Epoxy when used with the same fibreglass as polyester. Is stronger, less prone to cracking and does not shrink over time.

Epoxy generally takes longer to cure, has a set mix ratio and can cure in a vacuum. Poly cure time is dependant on amount of catalyst used and usually comes mixed with styrene which evaporates during curing.

Polyester is smelly and the fumes are bad. Also the catalyst is nasty if not treated with care.

Epoxy is not so smelly and fumes are not a big issue. Repeated exposure to skin can cause an allergic reaction.

Epoxy is expensive, Polyester is half the price.

Poly is fine epoxy is usually better. Depends of the application.

There is also vinyl ester which is a mixture of both.

45

For Sale / Ripmax Spitfire as PSS

« on: November 23, 2011, 12:48:56 PM »

It's all yours if you want it Bill.