Sloping Off - December 2005
Gliding Report
The Jantar 1 is now complete. She is quarter scale with a wingspan of 5 metres. It has 6 servos, all are accommodated in the fuselage (the old fashion way). Modern scale gliders would have servos in the wings for brakes and ailerons. The first flight was in Devon. It was from a 400 foot high cliff which faces west. An amazingly graceful machine to operate. The down side was elevator flutter. The T tail elevator is operated via a snake which runs from the cockpit area, result, a little slop in the control surface. I’ve now ordered a small and reasonably powerful servo. This will now be cut into the vertical fin and use a very short push rod to the elevator. Spiral wound cable will be used to extend the lead to the receiver which is also located at the front of the model. Terry Sullivan has also flown this model (he had his bike clips on at the time to stop the adrenalin escaping!!!!) This mod completed 20th November and followed by fog, frost and flat calm weather ERRRRR!!
My other model quite recently acquired is a quarter scale T21 glider. This model was featured in Q&EFI during the early part of the summer by Chris Williams. It’s BIG. 13 ft span and with a 20 inch chord. This model has 4 servos in the wing (two part wing), two brakes and two aileron servos to be precise. She also has one servo operating the rudder, one on elevator and one on tow release. Yes, this model can be launched using an aerotow. Overall weight is around 10lbs.
I have looped and rolled the beast. I know, I know, it isn’t intended to be put through a roll. The extremely small top airbrakes are just so effective making her quite easy to land.
This particular model is to be featured once again by Chris Williams, in Q&EFI No 48 which should be next February. I have taken a few photos. David Enticott and Terry Sullivan have also helped me out. All the photos have been sent to Chris.
Terry Antell
