A new aircraft in the category FAR-103 - Junior

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meglin1

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A new aircraft in the category FAR-103 - Junior.
Geometric characteristics:
- aircraft length - 4.2 m
- wing span - 8.7 m
- area - 8.1 m2
Airplane weight:
- maximum take-off - 220 kg
- empty - 105 kg
- fuel weight - 10 kg
Flight characteristics:
- stall speed - 55 km / h
- safe speed of a separation - 65 km / h
- approach speed - 75 km / h
- landing speed - 60 km / h
- maximum speed
horizontal flight - 130 km / h
- maximum allowable speed - 140 km / h
- recommended flight speeds - 90-110 km / h
- permissible overload +4, -1.8
Airframe design:
The frame of the aircraft is made of duralumin.
The cabin, wing and tail paneling fiberglass laminate STEF 0.5-1 mm.
Chassis:
Three-post, with controlled front wheel. The main spring fiberglass.
Avionics:
Complex device IST-912 MA
Displays:
- speed;
- height relative to sea level;
- height relative to the airfield;
- rate of climb;
- records parameters (black box).
when installing an additional controller and sensors shows:
- fuel level;
- engine speed;
- engine hours;
- temperature of two cylinder heads;
- The temperature of the exhaust gases in the two cylinders;
- air temperature in the cockpit.
 

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gtae07

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Looks like fun! And no need to apologize; many of us here speak metric and the rest have learned to translate...
 

Dana

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NOT Part 103 legal. 103 is limited to 24 kts (44kph) stall speed and 55 kts (102kph) max speed.
 

cluttonfred

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No, it's not quite Part 103 legal, but it certainly could be with a little more wing area and the right prop. As it is, it looks like a great European microlight or single-seat LSA using what appears to be an off-the-shelf paramotor engine. Bravo!
 
Last edited:

meglin1

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[QUOTE = Dana; 452666] НЕ ЧАСТЬ 103 законная. 103 ограничивается скоростью сваливания 24 кт (44 км / ч) и максимальной скоростью 55 кт (102 км / ч). [/ QUOTE]

We will do better!
 

RJW

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That is a very cool airplane. Ultralights can be made very light with a proper spar. How much does the finished wing covering weigh? .016 aluminum weighs about 4oz per square foot. Is the finished fiberglass significantly lighter? Sorry about the Imperial/US units. Feel free to answer in metric and I’ll translate.

Thanks,
Rob
 

meglin1

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Power plant:
engine Airmax 220 (Spain) power 29 HP at 8000 rpm,
2-stroke, 210 cm3 with forced cooling of the cylinders.
Fuel consumption (gasoline B-95 with oil) 6 l/h.
The air screw with a diameter of 1350 mm.
 

billyvray

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Aug 17, 2005
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Newnan, GA
"The cabin, wing and tail paneling fiberglass laminate STEF 0.5-1 mm"

I'm curious about the sheet material being used for covering. Is it basically a straight layup of fiberglass and resin and handled as a sheet, or used in molds before assembly to shape the parts?
Very interesting.
 

poormansairforce

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Mar 28, 2017
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Just an Ohioan
Power plant:
engine Airmax 220 (Spain) power 29 HP at 8000 rpm,
2-stroke, 210 cm3 with forced cooling of the cylinders.
Fuel consumption (gasoline B-95 with oil) 6 l/h.
The air screw with a diameter of 1350 mm.
That's neat!
Climb rate?
Redrive ratio?
Static thrust?
Prop pitch?
 

pwood66889

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Feb 10, 2007
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Sopchoppy, Florida, USA
I apologize for the metric system...
And I appologize that this keyboard does not do Cyrlic!
So many times in my literate education, I would hit the French, the German, et al. But no "Russian in the raw." Whatta rip!
Took that language in high school as a "career move." Right after Sputnick went up, either we (Americans) were gonna take them over, or they were going to take us over!
Percy in NW FL, USA
 

BJC

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Looks like fun! And no need to apologize; many of us here speak metric and the rest have learned to translate...
Yes, many of us have worked in metric / SI. Much easier for me than speaking a second language.


BJC
 

pictsidhe

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Jul 15, 2014
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SI is my first language. I go both ways when doing hands on stuff. I only speak Elvish for engineering when I absolutely have to. I will generally translate Elvish to the Black Speech, calculate, then translate back if it's at all complex.
 

meglin1

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"The cabin, wing and tail paneling fiberglass laminate STEF 0.5-1 mm"

I'm curious about the sheet material being used for covering. Is it basically a straight layup of fiberglass and resin and handled as a sheet, or used in molds before assembly to shape the parts?
Very interesting.
This is a finished industrial material, sold in the store.
 

meglin1

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Nov 12, 2015
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Location
Ukraine
Was also tested version with a pulling propeller. Interesting data are obtained. But this option was more sensitive to the side airflow of the propeller and therefore more difficult for Amateur pilots.
 

cluttonfred

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