ORIGINAL: seemefly_1

Ok I had some simple questions to some of you jet guys. I’m not taking any plunge. I haven’t even soloed yet to tell the truth. I just have wanted some answers.

But what is the ratio between a model jet and a full size jet? I don’t know any model numbers of real jet engines so just pick one. AVERAGE IS 1/7 SCALE

I know some knowledge on real jet engines but what are huge differences in model jet engines and real ones?NOT A WHOLE LOT OF DIFFERENCE, THE CONCEPT IS THE SAME, SUCK, SQUEEZE, BANG, BLOW I do know some but correct me if wrong; model engines don’t have afterburners, they don’t have an adjustable aghast cone, and don’t have as many compressors or turbines. MOSTLY CORRECT. ONE COMPRESSOR WHEEL, ONE TURBINE WHEEL. THESE ARE SINGLE STAGE VANE AXIAL GAS TURBINES.

Another question is; what is the average cost of some model jets, and what makes them so expensive? THE KIT OR ARF ITSELF IS NOT NECCESSARILY MORE EXPENSIVE. THE LANDING GEAR TENDS TO BE MORE BECAUSE ITS NOT A MOLDED ONE PIECE OF FIBERGLASS WITH 50 CENT AXLES AND FOAM WHEELS. SEE ROBART.COM

What controls the speed on model jet engines? THERE IS A PUMP THAT PUMPS FUEL BASED ON WHERE YOU SET THE THROTTLE. MORE FUEL OR LESS IN THE COMBUSTION CHAMBER OF THE ENGINE MEANS FASTER SPINNING OR SLOWER.

Why do you need such big receivers? DEFINE "BIG" RECEIVER. A REGULAR 20 DOLLAR RECEIVER WILL FLY A JET, BUT WILL NOT MEET THE REGULATIONS. BETTER EQUIPMENT COSTS MORE MONEY (NORMALLY).

That is about all for now. Any help will be appreciated