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Thread: Wing Loading
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Old 06-20-2005 | 08:14 PM
  #13  
davidfee
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Joined: Jun 2003
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From: San Diego, CA
Default RE: Wing Loading

Except for a TD.020 pylon model I built many years ago, all of my small pylon models are built for the 7-cell Speed 400 rules. This gives you a rather high minimum possible weight. Experience has shown that using larger wings to reduce wingloading (above a point) just results in a slow airplane due to all the excess drag. For S400, the "happy medium" is around 100 sqin area... with the model built as lightly as practical. Flying weight is then 11-14 ounces and wingloading is 16-20 oz/sqft. The 75 sqin "Stinger" is the fastest in a straight line, but suffers a little in the turns.

"Floaters" don't make good pylon racers, since they tend to get tossed around and won't hold a line. 3D planes need to be as light as possible, with an absolute minimum wing loading and maximum power loading for the extreme manoevers. Sport/aerobatic planes work best somewhere in the middle, but I'm sure it's also a matter of taste. I like my warbirds to be light, but within reason. I like my models to have sufficient inertia to fly smoothly and handle a little wind. The two park fliers I have see very limited use because I don't like getting up at 5AM to beat the wind.

Again, the guy never said what type of model it was... he just gave the size and predicted wingloading.