World championship of F1E free flight slope soaring gliders

[alexandrefcruz]

Does the model fly always facing the wind or will it circle or zig zag? Is there any place you can buy a F1E compass or it has to be made from scratch?

[MrWetwilly24]

boring!!!

[Morbidao]

lot of fun!!

hehehehehe

[tinorkertesz]

i got some questions..

how far can soar the sailplane?

it got a limit time of flight?

how do the owners of the gliders to get his gliders back?

[eitanro]

What are rules for F1E?

Where can I see the mechanism and how it works?

(I fly F1A)

Thanks.

[AndrskA]

Hi,

An F1E glider keeps direction with the help of a compass which is located in the nose. You can set the angular position of a small nose-rudder relatively to this compass.

After the angular position of the rudder is set, it rotates together with the compass (they are on the same shaft)- that is how automatic steering works. This is important because slope wind also blows in one direction, you set the rudder so that the airplane should fly facing the wind.

[AndrskA]

The competition is very similar to F1A, 5 rounds with 3, 4 or 5 mins of flight time.

A link to a picture about mine (sorry youtube doesn't allow normal linking):

href (dot) hu (slash) x (slash) 8rtf

You can see the 12*50 mm AlNiCo magnet rod.

[Freddythethird]

how long does it take 2 build 1?

[AndrskA]

This depends a lot on its structural complexity. In fact I have never measured it in hours. A simpler one can be built maybe within a month (1-2 hours of work every day), but building a more difficult one can take even a half year.

[eitanro]

Thanks!

[rapharigoti]

Hey! Is this a distance, time or landing championship! I reaaly liked the video, but how does one win?

[AndrskA]

We launch these gliders from the top of a hill. There are five flight rounds. A maximum flight time (usually 3, 4 or 5 mins) is declared when starting each round. Timekeepers measure the time and register how much the model flies in percentage of the maximum time. After the end of the contest, these percentages are added together. In case of equality with a fellow sportsman, we fly flyoffs.

[rapharigoti]

Hey thats great! Do you make your plane your self? What are they made of? Whats your best result in these champion ships?

[AndrskA]

I myself design and build my models based on existing airfoils. Their wings and stabilizers are made of balsa, pine and laminated wood but the fuselage is a Carbon-Kevlar composite conical tube.

I have some second and third places on National and Budapest Championships and a Budapest Champion title. Once I was second between the juniors on a World Cup in Austria. I was a member of the junior Hungarian team on the W. Championship in Slovakia in 1999, and of the adult team in Poland in 2001.

[rapharigoti]

One more question... is there any kind of mecanism that automaticly corrects the angle of the tail, cause they throw it realy hard and they just correct their flight insted of loosing speed and falling back down.

[AndrskA]

Mounting this mechanism-which is tehe same as F1A gliders have-is optional. The timing device that controls landing also controls the Angle-Of-Attack of the tail. When launching the trailing edge of the tail is much lower than the leading edge (very low angle of attack). Also watch the F1E videos uploaded by filokus.