Foamy Airframes

Foamy Airframes

First of all this is not my design….. ‘I stole it………..No way am I that clever’. There are so many great designs out there on the net for free I just pinched the bits I thought would help me in both building and learning to fly.

Measurements are:

Wing span 80cm

Chord length 62cm

Chord tip 20cm

Ailerons length 23cm      depth 5cm

Fuselarge 5cm square

Tail 23 high inc fuselarge

Kf step is 28 Chord length to the tip of the chord tip.

Please use anything of mine ‘or that I have stolen’  but also design and develop your own ideas,the beauty of foamy deltas or wings are if you pretty much get the c of g about right they will fly in some way. If you are totally new remember nose heavy is better than tail heavy every time, when first learning.

These dimensions where determined by the size of the Depron sheet 6mm I could afford and obtain’

‘We don’t get  in  the UK the cheap white foam/ pink foam board available to lots of other countries’.

Itis a dumbed down design as I wanted it quick and easy to build….. ‘oh and repair’.

Whilst I remember….. Everything is held together with hot glue,strong, quick and you guessed it, cheap!!!!!

‘To Kf or not kf that was the question’

 well it’s a no brainer because whilst opinion is divided, for me they work, the least they achieve is lots more lift and stability… something I needed to help me fly better ‘and I needed all the help I could get’ .

Control at first was throttle and elevon only, which was plenty to deal with in the early days, ‘being male I don’t multitask’. I have since started using rudder which seems a natural progression once happy with the for mentioned.

Reinforced packing tape, extreme tape, it’s got lots of names by lots of people ‘but’ it works brilliantly with foam. I covered the entire wing and fuselage area and it must at least double the strength of a foam aircraft. If you take nothing from this and have not tried this stuff, give it a go…. I guarantee you will see the advantages of it.

Sir Isaac Newton had a point…. Except he only had to worry about apples falling….not a triangle of foam whizzing round the sky… C of g, after spending much time trying to do the math, I just Googled it and there are some amazing c of g calculators for deltas which clever people have given for free on the net. Try this.....

http://www.whitehills.co.za/index.php?option=com_content&view=article&id=18&Itemid=28

So now thanks to the ‘double josh effect’ I am flying in windy conditions,doing rolls and loops.. ‘In a fashion’.

When you first start, pick your weather, my Father told me……..

‘It’s better to be on the ground wishing you were up in the air, than being up in the air wishing you were on the ground’.