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Show "N" Tell June 5,  2008

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

     All New 4 Oz. IFO    

This is my "Keith Paskewitz" IFO.  This is my latest attempt to build a lighter plane.  It is all new with a lighter carbon fiber frame, cases taken off the servos, carbon fiber servo arms, wire cut to exact length to save weight etc.  I also used 2mm Depron instead of 3mm this time and used pull-pull system using button thread which is strong and not very stretchy.  I used ink which I sprayed with an air-brush to paint the plane.  Ink has no fillers and colors with very little weight.

 

     My first IFO was 11 or 12 ounces.  I later changed to outrunner motors and lithium battery and cut the weigh to 8 oz.  I then put a controllable rudder on it.  I later redesigned the rudder two times.  then I added a second landing gear on the top so I could land up-side-down.  By going to lighter batteries etc. I managed to keep the weight at 8oz.

 

     I then took one of my two IFO's and stripped it to just the bare frame with the ripstop covering still on it.  I went to lighter equipment.  I used a 14 gram E-flite 250 motor, Spektrum Nanolite airborne with 2 gram receiver and 6 gram digital servos, Dualsky 300 mah 25 C 21 gram batteries and lighter weight GWS 8x4 prop.  This brought my weight down to 5 1/4 oz.

 

    When I first started day-dreaming about building an IFO substantially lighter than the 5 1/4 oz. one I didn't think I could actually do it.  I was really thrilled when it came out at 4 oz.

 

     I will now go thought a debugging process and fine tune it.  I just changed to heavier carbon fiber for the elevators which added 2 1/2 grams.  they where too flexible before.  I well have to move the servos forward since it is tail heavy.    

      Last month I brought just the frame covered with rip-stop polyester

      Now it is built and flying.

Where to get IFO products.
The IFO kit can be purchased from www.wildrc.com but is easily scratch built.  The E-flite motor & Nanolite airborne radio are sold here at Hobby Town.  The Dualsky batteries come from www.2dogrc.com.  I got the ripstop polyester from Picture Perfect kits in Omaha. 
  Next month bring more planes to "Show N Tell" so you don't have to endure more of my ramblings about saving weight.

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The Cobras R/C Club is made up of a friendly and helpful group of people. We have a large grass field that is well maintained and is large enough to take off and land either North/South or East/West. Not only that but there is nothing to run into when you are flying. It’s all level open ground. We have a map to the field so that you will be able to find your way. The Cobras Field is on the west side of I-29 South of the Bellevue exit. All but the last couple of miles or so are hard surface roads. We also have posted on the Field the emergency number to give to the 911 operator so that the emergency unit can quickly find the Field. That number is 54802. It could be very important if someone had a heart attack or other serious problem. The SWIFT Glider club members are also members of the Cobras club and there membership has added to the size of the club which has helped to bring in enough money to pay the cost for rent and upkeep of the field. President Larry Puls cooks great Brats and other goodies for many of the Fun Flys etc. so be sure to come out to the Field and enjoy the food, flying and camaraderie. If you would like to show everyone your newest creation, that took so much work to build, then bring it to the Cobras Meeting for show and tell. The meetings are the first Wednesday of the month. In January we combine the meeting with dinner at the Holliday Party.  If you wish to join the Cobras download an application form.

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