Gliders > Slope Soaring

I'm drowning, in bits of an Mu28

<< < (8/14) > >>

Happy Days:
Yea’, fixed or all moving it will have to be removable for me to be able to get the fuse in my car. The fuse, as it is, just fits with a fraction to spare.  I’m hoping the rudder will have enough deflection to enable me to not have to drill a hole through the cars’ roof for the rudder to stick out of!  

I’m kinda hoping to have  a removable rudder.
This model has certainly caused crescendo of brain activity in my head. And I haven’t even started actually building it yet! :roll:

(I have to say, ..I feel more confident flying model aircraft than I do building them. Thank god for ARTF! :D )

K.

Brian:
Hi Keith,
I found a good article in 'that' hints thread on rcGroups on glassing a wing.
There he is using blue foam and with a vacuum and is applying 7psi.
; http://www.favonius.com/soaring/bagging/bagging.htm
We were using 1 to 2 psi on soft foam and soft balsa.
Your wing half is probably 500 in\2 maybe 550.
That is a lot of weight.
You should use as much weight as the foam can stand up to.
We will look at this on Thurs,, also.

When you are happy that you have a bench that is able it is a good idea to get/cut a piece of chip-board or mdf to place on top of the wing to carry this weight and spread the load evenly.
I have seen a 'stack' of concrete blocks on a wing.

Brian

Happy Days:
Er, if I was going down the road of glassing the wing Brian, that would be a great idea………

My instinct is to go with a carbon  “ I ” section spar. I think that would be the lightest option & plenty of gliders fly with only such strengthening.

I’m not a ‘precision’ flyer like you F3A competition pilots. :wink:

K.

Brian:
Hi Keith,
I'm not suggesting you glass the wing.
I am trying to give you some guidance re gluing pressure for whatever skin is used.You have veneer which does not crush easily so use all the pressure the foam can stand up to.
Also you need to prepare the foam surface, sand with 320/400gt .
Make a 0.6 to 1m long sanding block.

Help I'm a nobody get me out of here !

Brian

Happy Days:
Steady on Brian, don’t get your knickers twisted! :lol:

Just a simple question;
Assuming that the glue that I use to stick the obechi  does not expand as it cures, why would I need to apply one or two lbs (16 - 32 oz) pressure on each sq inch of surface while the glue cures?
In other words, what happens if less pressure is applied during the curing process?

Keith

Navigation

[0] Message Index

[#] Next page

[*] Previous page