NORTHERN IRELAND MODEL SOARING ASSOCIATION

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Hints & Tips

NIMSA accepts NO RESPONSIBILITY for loss, damage or injury as a result of utilising any of these hints


 

(1)

When removing covering film to attach stabiliser or fin, use a soldering iron to melt the film away. This stops a blade digging in and weakening the wood.

(2)

For MPX MC3030 users:

         

      The strap hangers you can buy for this radio do not give a very good balance to the radio. I have an alternative method using 6mm aluminium tubing available at hobby and DIY stores.

I think the pictures give enough detail, but if not get in touch.

Click on the pictures for a bigger image

(3)

For those who use air cans for airbrushing, there is an alternative if you already have a 12 volt compressor for your car tyres. Using a 2 litre soft drinks bottle as a reservoir and fish tank fittings available at most pet stores and the compressor, you can make a unit which will provide enough air to run your airbrush. I set my compressor to about 35 psi and that runs my Badger airbrush.

 

Click for bigger image

 

(4)

Foam Cutter Power Supply

I use a dimmable transformer for low voltage lighting controlled by a dimmer switch. The transformer I have is 105VA, but 150VA might be better and give an easier control of the heat

 

 

(5)

Cheap Wheel Collets:

Use a strip of terminal strip, cut off one "set", remove the plastic coating and split the brass between the screws using a dremel or hacksaw. Cheap and you can use a normal screwdriver instead of an allen key

 

 

 

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(6)  If your clevis won't go through the holes in your servo arm or horn, apply a small soldering iron to the back of the clevis and gently squeeze the clevis. It will slowly melt it's way through and if you turn the horn gently will produce a very nice, snug fit. (p.s. ONLY works with metal clevises!)

(7)  A Cautionary Tale from the Club Chairman!

    "Negative Lead Corrosion: Until last Wednesday evening this was only something I had read about. I launched my large electric glider and it set off     happily towards the entrance gates. It then demonstrated a disconcerting lack of response to control inputs and continued in a gentle descending right-hand turn towards the car park. It just missed the cars and crashed into a tree from which it was fairly gently deposited on the pavement. Lucky Me!

On examining the electrics, I thought that my soldered joint between the negative battery lead and 4mm socket had failed, but on cutting off the socket I found that the whole wire part of the lead had been reduced to a sorry black mess!

Perhaps in pre-flight checks, we should include a jiggling of the black lead?"

Reproduced with the permission of Mike Leonard