![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
![]()
On Sat, 10 Nov 2007 05:34:46 -0500, "Morgans"
wrote: "Big John" wrote From a long time model builder I doubt if you would have enough thrust using ducted fans and electric motors powered by batteries.I built several models with electric ducted fans and they either didn't have the rpm to generate flying thrust of if flew was at knee level for maybe a 360 before the battery went down. If I had put bigger batteries in then the weight to HP ratio would have been way out of whack. I don't know if you were still into modeling with the new generations of lower RPM, super efficient brushless motors, and super light high capacity Li-Po batteries, but I find it difficult to believe that it would not be extremely easy to get 2 to 1 thrust to weight ratio, and keep it for at least 10 or 15 minutes. Granted, it would be a waste of money to do it modeling Moller, for anything but the novelty of it. Jim Yes I've seen and flown a little with the new stuff. My good flying buddy has a number of birds with this kind of power system and keeps pushing me to fly his latest ![]() I was more talking about ducted fans like Moller has. Haven't seen a fan with the new motors and batteries???? The new electric systems and a regular prop sized accordingly does pretty good and is said that that system will overtake gas engines especially where fields are in/near housing areas and noise is a problem. I'd miss the wet engines when that day comes. Again, I wouldn't touch a Moller with a ten foot pole ![]() Big John |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Late BFR | Anonymous coward #673 | Piloting | 35 | March 31st 07 02:43 AM |
Buy Moller's old Junk! No, seriously! | wright1902glider | Home Built | 11 | November 24th 06 06:28 PM |
Too late to be a pilot? | Fuzz | Piloting | 12 | May 12th 04 02:30 AM |
Sun N Fun Pix -- Better Late than Never! | Jay Honeck | Piloting | 40 | May 11th 04 12:52 PM |
OSH 2003 Pix -- better late than never? | Jay Honeck | Piloting | 11 | September 13th 03 10:22 PM |