Thursday, February 21, 2019

Types of Mountain Bike Suspensions


Tsafrir Jeff Aviezer, an experienced construction industry professional and real estate developer, likes to go mountain biking in his free time. Mountain bikers like Tsafrir Jeff Aviezer must select different types of bikes for terrains or riding styles.

A mountain bike's suspension determines which trails that bike best suits. Bikes can be full-suspension, hardtail, or rigid.

Full-suspension mountain bikes have both front and rear suspension, enabling the bike to deal with greater impact from trails. The amount of suspension in a full-suspension bike can vary, with greater amounts targeted at riders who want to take steep downhill trails and lower amounts intended for cross country riders who still want shock absorption.

A hardtail bike has suspension only in the front. These offer some of the impact mitigation of a full-suspension bike but with a significant reduction in maintenance cost, due to the more rugged construction of the rear. Cross country riders and those interested in less challenging trails benefit from a hardtail suspension.

Rigid bikes have no suspension whatsoever and rely on tires to provide comfort. These bikes require little maintenance and have a low price point, but cheaper suspension designs have made them a niche purchase.

Tuesday, February 19, 2019

An Introduction to the H120 Helicopter


An accomplished real estate development professional, Tsafrir Jeff Aviezer draws upon nearly three decades of experience as a homebuilder, project manager, and contractor in California. Also a former aviation executive, Tsafrir Jeff Aviezer trained on an EC120 helicopter (now known as an H120 helicopter) while earning his helicopter license.

Also known as the Hummingbird, the legendary H120 is part of the Colibri family of Airbus helicopters. Since being introduced under its original name of EC120 in 1997, the H120 has emerged as one of the most well-known light, single-engine helicopters in the industry, with more than 700 units shipped to customers around the world. A popular helicopter for both training and regular use, the H120 has accrued nearly 2 million hours of cumulative flight time by pilots over the years.

Helicopter pilots value the H120 for its roomy cabin that can comfortably fit a pilot plus four passengers, its low vibration, and its efficient Fenestron tail rotor that offers one of the quietest rides of any model. In addition to the Fenestron tail rotor, the H120 features cutting-edge technology, such as a Turbomeca Arrius 2F turboshaft engine and the latest generation multi-function display for enhanced pilot assistance.

The H120 also stands out for its safety features, as well as being the only model in its class that surpasses the most recent FAR/JAR 27 safety regulations. Finally, the H120 offers easy maintenance, making it a popular choice among helicopter enthusiasts who maintain their aircraft themselves.

Sunday, December 23, 2018

How Does a Helicopter Fly?


Tsafrir Jeff Aviezer, the former president of EA Builders, has spent more than 20 years working in the contracting and construction industry. Over the course of his career, he has overseen public works, custom homes, and acoustical renovation projects. In addition to his construction industry work, Tsafrir Jeff Aviezer holds a commercial helicopter pilot license.

Although helicopters look very different from airplanes, the science behind keeping them in the air is the same. The rotating blades of a helicopter generate lift, the force that pushes aircraft upward and keeps them airborne. 

On a plane, lift is created as air moves around the wings as the plane goes forward at a high speed. Since helicopters have rotating blades, they do not need forward motion to create lift and remain airborne. The rotating blades give helicopters the ability to hover in the air, which is impossible for planes.

Helicopters can also move upward and downward depending on the position of the rotor. The tail rotor plays a role in improving maneuverability, producing sideward thrust to help the helicopter turn smoothly.

Tuesday, December 11, 2018

Essential Gear for Long Mountain Bike Rides


Over the course of his 28-year career in the construction industry, Tsafrir Jeff Aviezer has held positions related to management, real estate development, and estimating. Most recently, Mr. Aviezer was employed at Metro CCM, a developer of custom homes in the Conejo and San Fernando valleys in Southern California. Aside from his professional responsibilities, Tsafrir Jeff Aviezer enjoys mountain biking

When mountain biking on wilderness trails, it is important for riders to be prepared for unexpected emergencies. In addition to carrying snacks, water, identification, and some money, bikers should make sure to pack basic tools and a few replacement parts:

- Replacement parts that are helpful to have on hand include two spare tubes to replace blown out tubes, a patch kit, derailleur, master link, and a half-dozen spare spokes.

- The most useful tools for a mountain biker include a CO2 inflator or pump and tire levers for flats, and a multi tool. Multi tools are like a pocket knife, and some are specifically designed for mountain biking. The small, compact tool should include Allen keys and screwdrivers as well as a torx 25, the correct spoke wrench, and a chain tool. These tools will enable bikers to make just about any repair on the trail.

- Other helpful items to pack include lip balm, sunscreen, a phone with a tracking beacon, rain jacket, zip ties, and a first aid kit.

Being prepared for a ride can help every mountain biker avoid potentially dangerous as well as frustrating situations.