RE: who is sick of the electric power craze???? conspiracy?  
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    • All Forums >> Radios, Batteries, Clubhouse and more >> Off Topic Forum - Planes/Helis >> RE: who is sick of the electric power craze???? conspiracy?
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    RE: who is sick of the electric power craze???? conspi... - 6/18/2008 12:10:14 AM   
    804


     

    Posts: 222
    Joined: 9/17/2005
    From: sheridan, IN, USA
    Status: offline
    quote:

    ORIGINAL: sscherin

    804..

    Yes your straight up numbers do show a savings but you forgot to buy the 2nd battery so you can fly more than 1 flight an hour.

    Also you picked the smallest recommended battery for the application. The recommended setup for a 3D High performance plane is a 5S 3800-5000mah 20-25c
    I think we will all agree that an Extra is a High Performance Plane and would do just about anything with a Saito 82 on the nose.
    You said Top quality so I'm holding you to it. Even the Extreme Flight combo includes a 25C 5S 3700 http://www.extremeflightrc.com/html/58extra.html

    Lets also talk flight time.. Most Saito FA-82s get 8-10 minutes on an 8oz tank..
    you quoted a 12oz tank.. so about 12 min flying time or more..

    Your battery with an average load of 45A (hey I pulled it form the listing for your motor as the max efficiency current)
    and the 3850mah battery will run about 5-6 minutes
    Advantage Saito.. more than double the flight time..


    So lets shift to the high end battery and compare.
    I'll pick the Thunderpower Extreme V2 25c 5S 5000mah battery.
    it'll take a 125A load.. plenty of headroom for those 80A bursts.

    Flight time @ 45A .. 6-7 minutes (still around half the glow flight times)

    How about weight?
    The saito is 16oz plus 7oz of fuel so 23oz takeoff weight..

    The Electric is 9.8z ounces plus your 4s 3850 at 17.5 oz for 27.3oz take off weight.
    the 5S 5000mah pushes that to 30.8 ounces almost a 1/2 a pound more.. almost a full pound when landing on an empty tank.

    Now lets go back to cost..

    You called a 12oz tank for the Saito.. but can only get 1/2 the flight time so I'm cutting that back to 8oz pr flight to be fair

    Thats 16 flights pr gallon. 6 gallons will get you 96 flights. for $120
    Your Lipo is $179 and you still fall short 2-3 min pr flight

    The recommended 5S 3850 is $214.. about 11 gallons of fuel or 176 flights

    My Lipo choice is the 5S 5000 at $289
    That would get you 14 gallons of fuel and 224 flights while still flying longer than the lipo setup and 1/2 pound less weight.
    That would be 3 YEARS of fuel for me and spent up front.

    The V2 line can charge at 3C so we are still looking at 25 minute charge times..

    Don't get me wrong.. I like electrics. I just can't justify the cost for .40 size and up yet.

    Specs for your motor from http://www.3dhobbyshop.com/detail.aspx?ID=2103




    Yep, I picked the smallest battery, for a reason. I always do. I have found in my planes the extra weight of a larger battery seldom offsets the extra power gained. I like light planes.

    Buy one batt. or ten. Its still pre-buying your fuel.

    I was careful to say elec. can COMPARE FAVORABLY to glow, not that it is definitely cheaper, TRYING to make the point that elec. is not as expensive as some would have us believe.

    I like elec. for the convenience, not having to drag around all the fuel, igniters, starters, glow-plugs, etc.
    I tend to fly my gas plane(also much more convenient than glow) several times in a day at the field, flyinig my elec. birds in between.

    I have seven glow planes I have not so much as fired up once this year. Chances are they will remain so.

    I have also found lately, the sound of two-stroke glow motors annoy me.

    But, to each his own.

    (in reply to sscherin)
           Post #: 51

    RE: who is sick of the electric power craze???? conspi... - 6/18/2008 7:16:34 PM   
    skyraider71


     

    Posts: 252
    Joined: 5/6/2008
    From: mount washington, KY, USA
    Status: offline
    quote:

    ORIGINAL: mtwister

    I think the reason electrics have progressed so much is because any moron can plug in an esc and fly. Yet it takes skill and dedication to tune a glow or gas powered model, and as we all know, the world is getting more and more lazy by the day.

    I think electrics are actually more complicated. All that math to do to get the right combo. Those chargers that
    have to be watched. Batteries have to be charged, cycled, and balanced with care. I startup, set the needle, then
    fly, re-fuel, then fly again.........simple! Maybe I'm the lazy one!

    _____________________________

    Busting props, and shredding Mono-cote since 1999

    (in reply to mtwister)
           Post #: 52

    RE: who is sick of the electric power craze???? conspi... - 6/18/2008 8:18:37 PM   
    mtwister


     

    Posts: 691
    Joined: 11/3/2005
    From: Salem , OR, USA
    Status: offline
    quote:

    ORIGINAL: skyraider71


    quote:

    ORIGINAL: mtwister

    I think the reason electrics have progressed so much is because any moron can plug in an esc and fly. Yet it takes skill and dedication to tune a glow or gas powered model, and as we all know, the world is getting more and more lazy by the day.

    I think electrics are actually more complicated. All that math to do to get the right combo. Those chargers that
    have to be watched. Batteries have to be charged, cycled, and balanced with care. I startup, set the needle, then
    fly, re-fuel, then fly again.........simple! Maybe I'm the lazy one!



    Correct me if I'm wrong, but don't you have to do all that with flight batteries on our gassers? I don't know about you guys, but I don't just buy batteries and throw them in and not worry about the specifics, especially on a $4k plane.


    (in reply to skyraider71)
           Post #: 53

    RE: who is sick of the electric power craze???? conspi... - 6/19/2008 3:25:45 AM   
    skyraider71


     

    Posts: 252
    Joined: 5/6/2008
    From: mount washington, KY, USA
    Status: offline
    quote:

    ORIGINAL: mtwister


    quote:

    ORIGINAL: skyraider71


    quote:

    ORIGINAL: mtwister

    I think the reason electrics have progressed so much is because any moron can plug in an esc and fly. Yet it takes skill and dedication to tune a glow or gas powered model, and as we all know, the world is getting more and more lazy by the day.

    I think electrics are actually more complicated. All that math to do to get the right combo. Those chargers that
    have to be watched. Batteries have to be charged, cycled, and balanced with care. I startup, set the needle, then
    fly, re-fuel, then fly again.........simple! Maybe I'm the lazy one!



    Correct me if I'm wrong, but don't you have to do all that with flight batteries on our gassers? I don't know about you guys, but I don't just buy batteries and throw them in and not worry about the specifics, especially on a $4k plane.



    Point taken. I'm talking .40 size sport flying with 4.8v nicads. I check with a meter
    every third flight and charge when nessessary, which takes 10 minuets. I cycle them when new, and I never
    use suspect packs. I replace them every couple of seasons, cheap insurance. While I'm charging one plane,
    I fly the other one. I stick with nicads because they are easy to manage. Even though I don't fly "high end"
    planes, I don't take chances.
    My point was that some believe engine powered flight is more complicated than electrics. I believe the
    opposite to be true. Setting a needle valve is not rocket science.

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    _____________________________

    Busting props, and shredding Mono-cote since 1999

    (in reply to mtwister)
           Post #: 54

    Page:   <<   < prev  1 2 [3]
    All Forums >> Radios, Batteries, Clubhouse and more >> Off Topic Forum - Planes/Helis >> RE: who is sick of the electric power craze???? conspiracy?
    Page: <<   < prev  1 2 [3]

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