Lomcovak_english

Battle of Arnhem

Roman Vojtěch — Thu, 03 May 2012 16:04:46 +0000

Weather forecast for this year F3B Arnhem was correct. It was really cold and cloudy. Saturday we experienced rain for a few hours.

Airfield nearby Arnhem is really huge. Sure everything around is totally flat, we were at Holland, correct?! Area was similar to Florida IRKS airfield, but at Florida was a bit warmer [...]

Earthquake

Roman Vojtěch — Wed, 25 Apr 2012 08:06:40 +0000

The only natural phenomenon which I was missing during this weekend at F3B Kirchheim was – earthquake. We experienced everything else i.e. sunshine, black sky, no wind, storm, thunder storm, wind turn by 180° every 30 minutes, deadly sinks, deadly thermals, hail storm, rainbow. Well, I didn’t mention tsunami, but fortunately airfield at Hulben is [...]

Winchline charging batteries

Roman Vojtěch — Mon, 23 Apr 2012 16:12:37 +0000

F3B rules says in paragraph 5.3.2.2. Launching, figure f) The battery must not be charged on the launching line. The motor must not be cooled, and the battery must not be heated.

At F3B Kirchheim I had interesting talk to Michael Wohlfahrt and Thomas Shorb. I was claiming that they are charging batteries on winch line [...]

Norbert Habe

Roman Vojtěch — Thu, 12 Apr 2012 08:52:23 +0000

Norbert Habe, author of many HN airfoils, big silent flight guru, died April 11, 2012. I remember long discussions at F3F Donovaly (Slovakia) with Norbert. He was always ready to help or dispute any aspect of model flying. R.I.P.

75g/qdm?

Roman Vojtěch — Tue, 10 Apr 2012 08:46:39 +0000

Recently just by coincidence I was talking to several friends about wing loading and FAI limits. It was not clear to me how is actually surface area calculated. Searching SC4_Vol_F3_Soaring_12, SC4_Vol_ABR_12 and asking Tomas Bartovsky about help I found following:

1.4 DEFINITIONS OF EXPRESSIONS USED FOR MODEL SPECIFICATIONS AND RULES

1.4.1. Surface Area The surface area includes [...]

Stinger hints

Roman Vojtěch — Thu, 29 Mar 2012 18:54:20 +0000

Some of you just became happy VV Model Stinger owners. I have few hints when setting up this blazing fast F3X toy. I fly Stingers more than year.

Wiring diagram. I use this system since ever in my F3X toys. It's simple, light, space saving and reliable.

I fly CG about 95mm. Empty flying weight of [...]

F3B 2012 season starts now (updated March 13)

Roman Vojtěch — Tue, 28 Feb 2012 06:18:30 +0000

Monday, March 5 Sorry to be delayed with Gator 2012 report. Saturday and Sunday was really hectic. I will report just short notices. Detailed info about F3B Gator contest you will find at www.gatorf3b.com.

Gator, F3B in USA and America

It’s pity we didn’t have more pilots F3B is far the most complex and challenging silent flight category, but [...]

Merry Christmas…

Roman Vojtěch — Fri, 23 Dec 2011 08:57:21 +0000

… and Happy New Year to all of you. Looking forward to meet you again at airfield anywhere in this galaxy.

P.S. That’s not me on the picture (smile).

Florida and Milang 2012

Roman Vojtěch — Wed, 16 Nov 2011 16:50:13 +0000

F3B is flown not only in Europe. Next season can start for you already at the end of February in warm & cozy Florida, USA or in the middle of March in hot Milang, Australia. Check websites dedicated to these events.

Gator by Gordon Buckland (Invitation letter PDF) and Milang by F3B Australia (LSF Australia or [...]

Good inspirations

Roman Vojtěch — Thu, 27 Oct 2011 18:03:48 +0000

Good inspirations are always invaluable. In China I noted at least three such ones for me.

Talking timer

In Laiwu, USA guys were using Apple iPod Nano as talking timer. At least for training, but perhaps for contest also, seems to me it’s smart idea. Since long time I was using loud talking timer, but time modes [...]