
(14 March 2022)
Russia began a full-scale invasion of Ukraine on 24 February 2022, in an escalation of the Russo-Ukrainian War that began in 2014. The invasion is the largest conventional military attack on a sovereign state in Europe since World War II. Since the beginning of Putin's war, thousands of both Ukraine and Russian citizens have been killed. Russian military have indiscriminately bombed cities in Ukraine, destroying many hospitals and schools. Our heart goes out to the 2.7 million plus refugees that have left Ukraine for neighboring countries, and those who stayed to fight the Russian invaders.
Rossiya nachala polnomasshtabnoye vtorzheniye v Ukrainu 24 fevralya 2022 goda v ramkakh eskalatsii rossiysko-ukrainskoy voyny, nachavsheysya v 2014 godu. Eto vtorzheniye
yavlyayetsya krupneyshim voyennym napadeniyem s primeneniyem obychnykh vooruzheniy na suverennoye gosudarstvo v Yevrope so vremen Vtoroy mirovoy voyny. S nachala putinskoy
voyny pogibli tysyachi grazhdan Ukrainy i Rossii. Rossiyskiye voyennyye bez razbora bombili goroda Ukrainy, unichtozhiv mnozhestvo bol'nits i shkol. My sochuvstvuyem boleye
chem 2,7 millionam bezhentsev, pokinuvshikh Ukrainu v sosedniye strany, i tem, kto ostalsya srazhat'sya s rossiyskimi okkupantami.
Россия начала полномасштабное вторжение в Украину 24 февраля 2022 года в рамках эскалации российско-украинской войны, начавшейся в 2014 году. Это вторжение является крупнейшим
военным нападением с применением обычных вооружений на суверенное государство в Европе со времен Второй мировой войны. С начала путинской войны погибли тысячи граждан Украины
и России. Российские военные без разбора бомбили города Украины, уничтожив множество больниц и школ. Мы сочувствуем более чем 2,7 миллионам беженцев, покинувших Украину в
соседние страны, и тем, кто остался сражаться с российскими оккупантами.
YAGio - Yagi Design by W8IO
YAGio 1.01 is the most current released version. YAGio runs under Windows 2000, XP, Vista, Win 7 and likely Win 8. YAGio is similar to LPCAD, it uses keyboard commands instead of a mouse menu. YAGio allows you to create DL6WU long Yagi antennas on any frequency, typically on VHF and UHF ham frequencies. You specify the frequency, desired gain, type of element to boom mounting, DE diameter and parasitic element diameter, and YAGio does the rest. You can save these designs in 5 different formats - YIO (used by YAGio), NEC (used by 4NEC2), YAG (YO), MMA (MMANA-GAL) and YC6 (used by YagiCAD). You can also print the results to your Windows default printer. Please email me at rgcox2 (at) gmail.com if you find bugs or to suggest improvements. YAGio.exe version 1.01 was created on 6-10-2015 at 12:39 pm. The exe file size is 221K. You may download YAGio101.ZIP here.
I am currently working on YAGio 1.02. I will also add file export support for 4 bay NEC models.
I like to use 4NEC2 to evaluate my Yagi models. It is a very nice, full featured version of NEC2. You can find the latest version of 4NEC2 here:http://www.qsl.net/4nec2
You can also find a faster NEC2 "engine" for 4NEC2. (web site currently unavailable) The NEC2/MP "engine" will speed up computation tremendously in dual and quad core PC's. A model that took 60 seconds to run in 4NEC2's existing computation engine should complete under 25 seconds using the NEC2/MP engine in a dual core CPU and under 12 seconds in a quad core CPU.
Here are a couple screen shots from YAGio 1.0 running in Win 7:

Reviewing a "repack" or unofficial solution set for Val Ivanoff's Engineering Mechanics
requires looking at both its academic utility and its reliability. Val Ivanoff is well-regarded for his practical approach to Australian engineering standards, and while official solutions exist, "repacks" are often community-compiled digital versions. Engineering Mechanics (Val Ivanoff) Solutions Repack
This repack serves as a digital companion to the widely used textbook by Val Ivanoff. It is primarily designed for students and self-learners who need step-by-step verification for complex problems in statics and dynamics. Step-by-Step Clarity:
Unlike some official manuals that only provide the final answer, this repack often breaks down the "why" behind the vector analysis and free-body diagrams. Searchability: engineering mechanics val ivanoff solutions repack
Being a digital "repack," it allows for quick navigation via OCR (Optical Character Recognition), making it much faster to use than flipping through a physical textbook. Practical Context:
It maintains Ivanoff’s focus on real-world application, aligning solutions with the practical examples found in the text. Accuracy Risks:
Unofficial repacks are prone to transcription errors or "carry-over" mistakes from community contributors. Always cross-check results with first principles. Formatting Issues: Reviewing a "repack" or unofficial solution set for
Depending on the source, some diagrams can be low-resolution or poorly labeled, which is a significant drawback for a subject as visual as mechanics. Ethical/Legal Gray Area:
These resources are often informal and may bypass official publisher channels. Final Verdict Ivanoff Solutions Repack is a powerful supplementary tool
for sanity-checking your work. However, it should not replace the process of deriving your own answers. Use it to unstick yourself during late-night study sessions, but rely on the Primary Textbook and official Academic Guidelines for exam preparation. Rating: 3.5/5 (Useful, but proceed with caution regarding accuracy.) (like Statics vs. Dynamics) or on the technical quality of the digital file? AI responses may include mistakes. Learn more Engineering Mechanics Val Ivanoff Solutions Repack Part 4: Components of a High-Quality Repack (What
Not all repacks are equal. Many circulating files are incomplete, illegible, or simply wrong. When searching for the "Engineering Mechanics Val Ivanoff solutions repack", prioritize versions with these attributes:
It's important to be upfront: "Engineering Mechanics" by Val Ivanoff is a well-known textbook (often used in Australian technical colleges and engineering pathways), but there is no official, legitimate "solutions repack" from the publisher (McGraw-Hill or similar).
If you see a file labeled "Engineering Mechanics Val Ivanoff Solutions Repack" online (e.g., on torrent sites, file-sharing forums, or student Discord servers), here is a realistic review based on common user experiences with such repacks:
Change one parameter (e.g., double the mass, change a friction angle, invert a force direction). Solve it. If you can’t, revisit the repack to understand the method, not the numeric answer.
If you cannot find a reliable repack or want to stay 100% legitimate, consider:
Comments are welcome!
contact Roger: email to
rgcox2 (at) gmail.com
Roger Cox W8IO - Spring Lake, MI