gerry logo

English-Site update
03-14-2013


German-Site

usaW03
germanyW
gaestebuch

Counter 

straight Flaps
flaps-gerry-83

Nearly everyone of us had build warped Flaps. We had this problem with solid and buildup Flaps. To get straight flaps we made for our last 6 Models balsa covered flaps. At first you have to build the flaps like a buildup type (the angled rips app. 30°).

flaps1

Than you have to sand the flaps over pianowire as a guide. You have to choose the wire matching your flaps. For flat flaps the front and rear wire are the same. For profiled flaps it’s the best to remove equal material from the upper and lower side. That means when the uncovered flap should have 6 mm at the front and 4 mm at the end you have to sand at first the upper side over a 6 and 5 mm wire, turn the flap and sand the lower side over a 6 and 4 mm wire. The ready sanded flap cores must be 2 times sheeting thickness thinner than the ready flap.

IMG_279103

Now place the flap cores on a flat surface covered with waxpaper. Now spread slow-zyano on the upper wood surface

IMG_279203

Cover the flap core with the slightly oversized sheeting. A flat woodplank on top and weight it down.

IMG_279304 IMG_279502

When the glue has cured cut away the oversized sheeting

IMG_279603

with the covered side down again on the building table, slow-zyano on the upper side and once again the sheeting, the plank and the weight.

IMG_280102

When the glue has cured, trim and sand the flaps.

IMG_2819
IMG_282004

If you have questions contact us.

Uwe Kehnen

[English/Home] [That's Controlline] [German-Team 2011] [Gallery] [F2B Aerobatic] [Carrier] [FAI/Ciam] [Workshop] [Contest Calendar] [Results] [Downloads] [Links] [Archiv] [Impressum/Contact] [Dr. Geza Egervary - A Great Sportsman]