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#41
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MrV a écrit :
Hey Dan good info. Question what is considered "High Load"? My plan is to run the system at a max of 65%. from personal exp i know running my auto at 5k rpm will shorten its life but i also know that it'll run damn near forever at 3500 rpm. Dear MrV (don't you have a real name ?) As a lister from across the pond I can read English quite easily, but I must confess that I am at a loss understanding your messages. You must be posting with a cell phone, or something ;-) I would like to say that it is wiser to state the exact mission of the machine BEFORE starting to devise solutions to engineering problems not yet existing. What makes you thing a pusher is the best setup for the plane you intend to design ? Regards, Gilles Thesee Grenoble, France http://contrails.free.fr |
#42
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well given sea level standard temp i'm looking at ~250hp at 3500 rpm
which from the graphs i've seen translates to about 360-375 lb-ft torque at that point. now the graphs are few and far between but i'm sure i can tweak it to atleast this level. |
#43
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Hi Gth, the pusher is just a personal choice. The machine i envision
has nothing but glass/lexan/plexi and a few instruments in front of me. No spinning prop, no front cowl. now there are a number of current machines i like that almost fit. notably the diamond models i did notice your plane looks similar to a diamond. i really love the view from these craft and flying them is almost where i want to go. I just figured if i'm gonna hand build then try to shoot for the what it is i really want and make compromises only when nec. i kinda left it vague hoping people would rhyme in with any tho they may have. |
#44
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After building and flying a few airplanes you'll learn that weight is
the MOST CRITICAL property there is in aviation. Next comes harmonic resonance (well, in most auto mods anyway). Richard "One test is worth a thousand expert opinions" Tex Johnston |
#45
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Having read this far, I think Jim hit it right.
Kid playing with his computer. ------------------------------------------------------- 1 2 3 4 5 6 7 8 9 10 ------------------------------------------------------- ^ | Troll-O-Meter says try harder next time. |
#46
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Morgans wrote:
"Bret Ludwig" wrote gets rid of BOTH mags and gives you ai internal one hour battery backup if the airframe electrics shoot craps completely. My old spinster aunt ferried Bonanzas across the North Atlantic in the early seventies and I'm sure she'd be glad to know that if the electrics quit you had a whole hour! If I were going to ferry an airplane across the Atlantic that had a battery dependent ignition, I would throw in an extra battery; possibly a good 'ole deep discharge trolling battery. One that would last as long as the fuel capacity, just as a matter of principle. Or worst case, good for half of the trip ![]() |
#47
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Go peak at my website, www.haaspowerair.com and look close at all the
systems. The motor is all aluminum so weight is at a mininum, the ignition is dual and totally independent from each other. I run a Optima gel cell battery rated at 860 cca. The primary ign is powered through the main buss, if it fails I can switch to ign #2. That is feed straight from the positive post of the battery to only the # 2 MSD ign box. The endurance of that battery will let me land and refill with full fuel four times before the battery cannot provide enough power to fire the plugs. Now, if I am dumb enough to land and not look into the failure then I am deserve to be interviewed by the NTSB....... Ben |
#48
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![]() "Bret Ludwig" wrote gets rid of BOTH mags and gives you ai internal one hour battery backup if the airframe electrics shoot craps completely. My old spinster aunt ferried Bonanzas across the North Atlantic in the early seventies and I'm sure she'd be glad to know that if the electrics quit you had a whole hour! If I were going to ferry an airplane across the Atlantic that had a battery dependent ignition, I would throw in an extra battery; possibly a good 'ole deep discharge trolling battery. -- Jim in NC |
#49
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![]() stol wrote: Go peak at my website, www.haaspowerair.com and look close at all the systems. Can I (or anyone) buy just the redrive? Are prices on the web? I didn't see any list. |
#50
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![]() "Jim Carriere" wrote One that would last as long as the fuel capacity, just as a matter of principle. Or worst case, good for half of the trip ![]() Ex-zacary! BFG -- Jim in NC |
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