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 |
#10
|
|||
|
|||
aerobatic power to weight ratio
"B A R R Y" wrote True scale r/c models often suffer from serious controllability issues in ugly attitudes. This is why r/c pilots are often encouraged to gain serious experience before moving to true scale warbirds, just like full-size! Another factor that has not been brought up, is how weight versus wing area, and HP to weight ratios of models versus full sized aircraft. Also, the effect of the air is different at scale sizes, which is related through Reynolds numbers. Thrust at model sizes is very easy to get way up over the total weight of the model. Not so easy with full scale. There is a rule among model builders, but I can't for the life of me remember what it is named, or exactly the numerical relationship. Something like "rule of square" or "rule of cube" or "rule of quad" or something like that. Basically, as I recall, it is that as size double, the wing area (or weight) is 4 times as much. I never got into that type of thing, since I am not into the whole accurate scale model stuff. As long as it is fun to fly, I'm happy. g -- Jim in NC |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Fiberglass cloth weight vs 'finished' weight | Fred the Red Shirt | Home Built | 12 | April 5th 08 04:24 PM |
Glider Weight/Wing Loading and determing speed for best L/D for a given weight | 65E | Soaring | 3 | January 26th 06 09:26 PM |
Power setting table and best economy/best power... | xerj | Piloting | 29 | October 20th 05 02:44 AM |
Empty/Gross weight Vs. Max. Pilot weight | Flyhighdave | Soaring | 13 | January 14th 04 04:20 AM |
Diesel engines- forced induction, power-weight | Jay | Home Built | 4 | December 7th 03 09:23 AM |