---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Tue 06/06/06: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:23 AM - Landoll Balancer? (Michael) 2. 06:28 AM - Re: Landoll Balancer? (n801bh@netzero.com) 3. 07:40 AM - wood prop vs metal with Landoll Harmonic Dampener (Michael) 4. 01:23 PM - Re: Landoll Balancer? (Archie) ________________________________ Message 1 _____________________________________ Time: 05:23:40 AM PST US From: "Michael" Subject: Engines-List: Landoll Balancer? > (am assuming you are using a metal prop, as wooden props really do not need such a device). > BTW, it is not a "balancer", as it balances nothing. It is actually a "harmonic dampener". > Catch my forums at OSH for what it actually does. Opps: I believe it is the other way around: you need something flywheel-like up front to make up for lack of weight and inertia of a wood prop. Something like a Landoll dampener would not be necessary with a METAL (flywheel) prop as the weight and inertia is already there. Michael ________________________________ Message 2 _____________________________________ Time: 06:28:46 AM PST US From: "n801bh@netzero.com" Subject: Re: Engines-List: Landoll Balancer? Actually Archie is correct, the device is a harmonic dampener, or to put it different it absorbs alot of unwanted vibrations which in effect smo oths out the power pulses. A balancer is usually a static action to corr ect a shaking motion, the harmonic balancer is an active device doing it s thing as the engine runs. Ben Haas N801BH www.haaspowerair.com -- "Michael" wrote: > (am assuming you are using a metal prop, as wooden props really do no t need such a device). > BTW, it is not a "balancer", as it balances no thing. It is actually a "harmonic dampener". > Catch my forums at OSH f or what it actually does. Opps: I believe it is the other way around: y ou need something flywheel-like up front to make up for lack of weight a nd inertia of a wood prop. Something like a Landoll dampener would not b e necessary with a METAL (flywheel) prop as the weight and inertia is al ready there. Michael Actually Archie is correct, the device is a harmonic dampener, or to put it different it absorbs alot of unwanted vibrations which in effect smooths out the power pulses. A balancer is usually a static&nbs p;action to correct a shaking motion, the harmonic balancer is an active device doing its thing as the engine runs. 


Ben Ha as
N801BH
www.haaspowerair.com

-- "Michael" <c ubflyr@comcast.net> wrote:
 > (am assumin g you are using a metal prop, as wooden props really do not need such a device). 
 > BTW, it is not a "balancer", as it balances nothing. It is actually a "harmonic dam pener". 
 > Catch my fo rums at OSH for what it actually does.& nbsp;
 
Opps: I believe it is the other wa y around: you need something flywheel-like up front to make up for lack of weight and inertia of a wood prop. Something like a Landoll dampener would not be necessary with a METAL (flywheel) prop as th e weight and inertia is already there. 
 
Michael 
________________________________ Message 3 _____________________________________ Time: 07:40:49 AM PST US From: "Michael" Subject: Engines-List: wood prop vs metal with Landoll Harmonic Dampener Right: but it is NOT necessary with a metal prop. As you say, the dampener ABSORBS pulses which a wooden prop has difficulty with as the mass is not as great as a metal prop, thus there is less to absorb the pulses into. The Harmonic Whatever is not needed with a metal prop; it is not necessary with a wood prop either but nice to have, especially the light ones on experimental aircraft such as an RV. Michael -----Original Message----- From: owner-engines-list-server@matronics.com [mailto:owner-engines-list-server@matronics.com] On Behalf Of n801bh@netzero.com Sent: Tuesday, June 06, 2006 7:22 AM Subject: Re: Engines-List: Landoll Balancer? Actually Archie is correct, the device is a harmonic dampener, or to put it different it absorbs alot of unwanted vibrations which in effect smooths out the power pulses. A balancer is usually a static action to correct a shaking motion, the harmonic balancer is an active device doing its thing as the engine runs. Ben Haas N801BH www.haaspowerair.com -- "Michael" wrote: > (am assuming you are using a metal prop, as wooden props really do not need such a device). > BTW, it is not a "balancer", as it balances nothing. It is actually a "harmonic dampener". > Catch my forums at OSH for what it actually does. Opps: I believe it is the other way around: you need something flywheel-like up front to make up for lack of weight and inertia of a wood prop. Something like a Landoll dampener would not be necessary with a METAL (flywheel) prop as the weight and inertia is already there. Michael ________________________________ Message 4 _____________________________________ Time: 01:23:13 PM PST US From: "Archie" Subject: Re: Engines-List: Landoll Balancer? MessageI work with these on a regular basis, and can assure you the a wooden prop will absorb and dissipate orders of harmonics where a metal prop will not. That is not to say it cannot be used, however. The dampener may add some flywheel effect but why would anyone install it for that purpose? We are not incorporating it for flywheel effect. The purpose of any dampener is to absorb torque spikes which are generated in every internal combustion piston engine. Archie ----- Original Message ----- From: Michael To: engines-list@matronics.com Sent: Tuesday, June 06, 2006 8:19 AM Subject: Engines-List: Landoll Balancer? > (am assuming you are using a metal prop, as wooden props really do not need such a device). > BTW, it is not a "balancer", as it balances nothing. It is actually a "harmonic dampener". > Catch my forums at OSH for what it actually does. Opps: I believe it is the other way around: you need something flywheel-like up front to make up for lack of weight and inertia of a wood prop. Something like a Landoll dampener would not be necessary with a METAL (flywheel) prop as the weight and inertia is already there. Michael