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  • in reply to: Economical / Eco-friendly car questions. #1923085
    topspeed
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    There is no question of buying a hybrid or electric, you are looking at petrol and diesel only.

    Thanks in advance.

    Moggy

    http://www.funny-potato.com/aptera-cars.html

    Put diesel on that => 60% less air resistance.

    in reply to: Air pollution #431449
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    Aviation does 5% of all emissions

    One liter of kerosene produces 3.5 liters of CO2 and 1.3 liter of water vapour.

    In Finland all aviation pollution equals one coalbased powerplant pro year or less.

    All in all aviation is responsible about 5-6% of all CO2 emissions into the air ( heating of infrastucture does about 50% ie. houses, offices, factories, shops etc. ).

    An A 320 fully loaded produces less emission than a car does per person.

    I bet in England also the pollution by aviation is a lot more than in Finland but definitely no more in percentage vise compared to cars and lorries etc.

    What has been interesting is that some bus drivers in Helsinki can use ½ the gas than others…so driving habits also affect to this equation. Transportation companies are pretty keen to study how much gas is used because it costs millions for the company..many times more than the bus driver salary that is.

    All effects of aviation in pollution have not been studied yet ( will the heated air damage more atmosphere higher where the air is thinner etc. ).

    in reply to: V-tail or Standard Tail #1222655
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    Da-11 has V-tail. It goes 155 mph with 18 hp engine.

    in reply to: Top Gun -The Movie Versus Reality #2467426
    topspeed
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    I recetly read somewhere that a famous pilot actually died in filming of the TOP GUN. Is this correct ?

    in reply to: Finns at Mokotow Glider School in 1935 #1223207
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    I wanted to see the Salamandra glider that was PIK-5 designers source of inspiration..it must be la later semienclosed cockpit glider ?

    Excellent pics…thanks Martti ( also your input in old aerodynamic lessons are cool elsewhere ).

    in reply to: Vintage aircraft in Scandinavia #1223219
    topspeed
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    Yes, its a prerequisite 😀

    Quite so.

    I was walking and wondering all the flyable planes in several Duxford hangar this spring…and I was impressed. Bearcat, Spitfires of several sort and even an SR-71 ( perhaps not flyable ) in the USAF Museum. All this resulted me of my toe nails to drop…they luckily grew back.

    There was also a Dh-89 Dragon Rapide flying above London and I saw the same plane in Duxford. How many of those fly in UK ? Overall ?

    I also saw in the coffee shop a distinguished looking WW II veteran whom I did not know. It was funny though I had a pilot type flying leather jacket on and he greeted me with a smile as if he knew me. I felt very good about it. Maybe my 1/12 scale combat flying makes me a 1/12 of a real pilot.

    In Cambridge I ate a big beefy steak, then we drove back to Northwood. I love England.

    rgds,

    Juke

    in reply to: Vintage aircraft in Scandinavia #1223499
    topspeed
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    BTW as an aircraft mechanic I can attest, that running an engine does not make a bird fly :p

    I agree but it might be of some help. :rolleyes:

    in reply to: Vintage aircraft in Scandinavia #1223971
    topspeed
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    There has been quite a few acquisitions the last couple of years, so a maybe its time to keep tally on registered vintage aircraft (not static display museum aircraft, but aircraft that theoretically could participate in a Scandinavian wide airshow).

    Ok I understand this, but..

    We have also an Airacobra and few Me-109s ( ..and whole bunch of Vampires, Mig-15s and Fokker D XXI etc in museums ) of which one was engine runned last time in 1978…I bet you could make a flying one out of that.

    in reply to: US1549 Downed (Merged) #580156
    topspeed
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    Here is more about the Neva ditched plane; http://en.wikipedia.org/wiki/List_of_accidents_and_incidents_on_commercial_airliners_grouped_by_year

    All passengers survived.

    in reply to: The "Wot Plane" Thread. (Game rules in Post #1) #1226119
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    in reply to: The "Wot Plane" Thread. (Game rules in Post #1) #1226165
    topspeed
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    Since I was first.

    Wot iz tis ?

    in reply to: The "Wot Plane" Thread. (Game rules in Post #1) #1226244
    topspeed
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    VEF I-16

    in reply to: Something new perhaps ? #431477
    topspeed
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    The plane that I was tweaking in size was this here which then resulted also that tiny biplane.

    I have found out some cornerstones is pusherprop history like this:

    1. Edson Gallaudet racer 1911-1913 ( 2x faster than contemporaries and Wright bros got their ideas from Gallaudet for their 1903 Flyer s control )
    2. XB-42 Mixmaster ( a bomber that was able to carry B-29 bombload 100 mph faster with ½ the enginepower )
    3. Molton Taylor Aerocar and Mini-Imp ( first flying car and kit pusher with shaft )
    4. Bill Lears last plane LearFan 2100 ( able to cruise faster than small jets using 2/3 of the fuel )
    5. Jim Bede’s BEDE-5B’s outstanding performance ( world fastest 218 mph at FAI under 300 kg class..using 60 hps )

    Other pusher designs worth mentioning are:

    Sierra Sue: http://www.wmof.com/Serria%20Sue.html

    V-Max Probe: http://www.webcamsue.nl/vmax.html

    Planet Satellite: http://en.wikipedia.org/wiki/Planet_Satellite

    BV 207-2; http://www.luft46.com/bv/bv207-2.html

    Care to comment on this MAX III design ( below ) ?

    in reply to: Something new perhaps ? #431508
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    Mods

    Thanks Ken,

    I just drew the top view very hastily. Would still fit on one lane.

    You are correct the view is not the best..sweep might slightly make it better.

    About the PIO…how goes the gyro forces of the prop affect on it ?

    I consider this a small aeroplane..not an ultralite…yet the speed could now be slower…stall I mean, but not 35 like ultras.

    rgds,

    Juke

    PS: I think this could be smallest still since it is the shortest.

    in reply to: Something new perhaps ? #431517
    topspeed
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    NASAs new transport / passenger concept

    http://www.youtube.com/watch?v=Sa-w6M5UR5U&feature=related

    Is that partially lifting body…v-tail will definitely burns less fuel…like DA-11 does 107 mpg with 18 hp engine.

    hre is a Boeing fighter design..wasn’t this in aviation movie recently;
    http://www.youtube.com/watch?v=TBgV_6L__zA&feature=related

    Could we assemble/collect all energy saving designs here and discuss them ?

    rgds,

    Juke

Viewing 15 posts - 2,641 through 2,655 (of 2,657 total)