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September 4, 2016 at 11:36 pm in reply to: F-35 News and discussion (2016) take III #2149758

paralay
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F-35A
The required thrust P = G / K
The average weight of 21772 kg – 8382 kg/2 = 17581 kg. fineness 8.8
The required thrust P = 17,581 kg : 8.8 = 1998 kgs
Weight 8382 kg of fuel, flight range of 2,200 km, the flight speed of 900 km / h,
flight time is 2200 km : 900 km / h = 2.44 hours
Fuel consumption:
8382 kg : 2,200 km = 3.81 kg / km
8382 kg : 2.44 h = 3435 kg / h
Specific fuel consumption of 3435 kg / h : 1998 kg = 1.72 kg / kgs * h

Su-27
The average weight of 17,500 kg (empty) + 100 kg (pilot) + 150 kg (shells) + 4700 kg (50% fuel) = 22450 kg
Fineness 11.8, needs thrust 22450 kg : 11.8 = 1903 kgs
Fuel consumption
9400 kg : 3680 km = 2.55 kg / km
Flight Time 3680 km : 900 km / h = 4.1 h
9400 kg : 4.1 h = 2299 kg / h
Specific fuel consumption of 2299 kg / h : 1903 kgs = 1.2 kg / kgs * h

F-22
The average weight of 19 660 kg + 100 kg (pilot) + 9367 kg /2 kg (50% fuel) = 24444 kg (without ammunition gun)
Fineness 12, needs thrust 24444 kg : 12 = 2037 kgs
Fuel consumption
9367 kg : 2,500 km = 3.75 kg / km
Flight time to 2500 km : 900 km / h = 2.78 hours
9367 kg : 2.78 h = 3372 kg / h
Specific fuel consumption was 3372 kg / h : 2037 kgs = 1.66 kg / kgs * h

September 4, 2016 at 11:16 pm in reply to: F-35 News and discussion (2016) take III #2149764

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Empty weight of the Su-27 – 17500 kg. 16380 kg – the T-10S. Maximum take-off weight of the Su-27 – 30500 kg.
Weight of fuel F-22 9367 kg, has a picture on the previous page.

The characteristics of the Su-27 – known, the result is formula unambiguous.
The formula for the F-35, two unknown – distance and fuel consumption. Here are possible options.

The fineness of the aircraft – a big secret. It can be found in the wind tunnel.
I find that value in another way. Top view (m2) : Front view (m2) = fineness.
It turns out very similar.
The quality of the Su-27 – 11.8, in Table – 11.0

September 4, 2016 at 9:12 pm in reply to: F-35 News and discussion (2016) take III #2149822

paralay
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The relative mass of fuel

Mt = 1.3 * Lp * Cp / (V * K)

The relative weight of fuel = 1.3 * range of flight * fuel consumption / (cruising speed * fineness)

Su-27
Mt = 1.3 * 3680 km * 0.67 kg / kgs * h : (900 km / h * 11.8) = 3205.28 / 10620
Mt = 9400 kg: 30500 kg = 0.3

F-22
Mt = 1.3 * 2500 km * 0.93 kg / kgs * h : (900 km / h * 12) = 2177.5 / 10800
Mt = 9367 kg : 33906 kg = 0.28

F-35
Mt = 1.3 * 2200 km * 0.82 kg / kgs * h : (900 km / h * 8.8) = 2352.24 / 7920
Mt = 8382 kg : 28169 kg = 0.297

September 4, 2016 at 4:59 pm in reply to: F-35 News and discussion (2016) take III #2149892

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I’m not saying that right. I want to understand.
Picture – screenshots from a very old movie, it seems 2004 🙂

[ATTACH=CONFIG]247978[/ATTACH]

September 4, 2016 at 2:19 pm in reply to: F-35 News and discussion (2016) take III #2149936

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KС-135 90700 kg of fuel, three times
KC-10 161480 kg of fuel, four times

4 F-35A 5960 km (3 + 1, which is returned to the half way)

(3 + 4) * 4 = 28 refueling

(90700 + 161480): 2 = 126 090 kg: 28 = 4503 kg – 54% complete refueling

September 4, 2016 at 2:11 pm in reply to: F-35 News and discussion (2016) take III #2149952

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Friends, if you think that the whole of Siberia is covered with asphalt or concrete, it is not so 😉

September 4, 2016 at 1:28 pm in reply to: F-35 News and discussion (2016) take III #2149987

paralay
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A T-50 did not sit down after every 500 km to check off and landing :p
Guys, everything is easier, F-35 guzzles fuel like a behemoth

September 4, 2016 at 10:49 am in reply to: F-35 News and discussion (2016) take III #2150065

paralay
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January 15, 2013 – January 16, 2013
T-50-4 made a flight on a route:
Komsomolsk-on-Amur – Domna of 1730 km. (I spent the night at the airport)
Domna – Kansk 1250 km, 2980 km of road. (Landing is not confirmed in Kansk)
Kansk – Shagol 2130 km, 5110 km of road.
Shagol – Zhukovsky, 1460 km, 6570 km of road.
He piloted by Sergei Bogdan.

The largest portion of 2130 km.

September 4, 2016 at 10:41 am in reply to: F-35 News and discussion (2016) take III #2150078

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Each of the three remaining jets was refueled seven times during the almost eight-hour-long flight, refilling its tank via the KC-135 three times and via the KC-10 four times, which will likely become the standard in order to ensure jets always have enough gas to land even if the plane malfunctions, Andreotta said.

Distance of 5960 km, 8 hours of flight, the average flight speed of 745 km / h. Seven air refueling, on eight sites 745 km.
Suppose that the plane refueled at 50% fuel in the tank. It turns out (8382 kg / 2): 745 km = 5.63 kg / km…

F-35A 8382 kg : 2200 km = 3.81 kg/km or 8382 kg : 1850 km = 4.53 kg/km…
F-22 9367 kg : 2500 km = 3.75 kg/km

http://www.defensenews.com/story/defense/show-daily/farnborough/2016/06/30/air-force-f-35-england-first-transatlantic-flight-riat-farnborough/86580962/

[ATTACH=CONFIG]247976[/ATTACH]

September 4, 2016 at 9:47 am in reply to: F-35 News and discussion (2016) take III #2150126

paralay
Participant

Aerodynamic quality – the ratio of lift to the power of resistance, fineness

September 3, 2016 at 9:11 pm in reply to: F-35 News and discussion (2016) take III #2150357

paralay
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Calculation. For the fourth-generation aircraft range is obtained less real

[ATTACH=CONFIG]247971[/ATTACH]

https://yadi.sk/i/yV-T2cUHujyX8

September 3, 2016 at 7:07 pm in reply to: F-35 News and discussion (2016) take III #2150430

paralay
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Let’s compare the empty weight and the weight of the fuel, they do not change.

Su-35S, empty 19,300 kg, 11,500 kg of fuel, 11,500: 19,300 = 0.596, range 3600 km
Su-30MKM empty 19660 kg, fuel 9640 kg, 9640: 19660 = 0.49, range 3000 km
F-16, empty 8910 kg, 3228 kg of fuel, 3228: 8910 = 0.36, range 2,500 km
F-15, empty 12975 kg, fuel 6105 kg, 6105: 12975 = 0.47, range 2,200 km
F-18, empty 11340 kg, fuel 4903 kg, 4903: 11340 = 0.43, range 2,200 km
F-22, empty 19660 kg, fuel 9367 kg, 9367: 19660 = 0.48, range 2,500 km
F-35A, empty 13290 kg, fuel 8382 kg, 8382: 13290 = 0.63, range 2,200 km

September 3, 2016 at 6:50 pm in reply to: F-35 News and discussion (2016) take III #2150447

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My version, 1391 km (751 nautical mile) – range with external tanks. 1391 km * 2 = 2782 km

September 3, 2016 at 6:05 pm in reply to: F-35 News and discussion (2016) take III #2150514

paralay
Participant

Range of flight 2,200 km – the official information from Lockheed. Really can be smaller – 1,850 km.
Maximum take-off weight of F-35A with external fuel tanks 31750 kg. internal fuel 8382 kg. The relative weight of 8382 kg Fuel: 31750 = 0.26

Realistically attainable takeoff weight of F-35A:
13290 (empty) + 100 kg (pilot) + 8278 kg (or 8382 kg fuel) + 89 kg (cartridges) + 6307.6 kg (weapons) = 28065 kg or 28169 kg
6 GBU-31 + 2 AIM-120C + 2 AIM-9X = 6 * 969 kg + 2 * 161.5 kg + 2 * 85.3 kg = 6307.6 kg

8382 kg : 28169 kg = 0.298
Aerodynamic quality – 8.8 (calculation). Consumption – 0.7 kg / kgs * h

T-50
fuel weight of 11,000 kg, maximum takeoff weight of 34,000 kg. The relative fuel weight of 11,000 kg : 34,000 kg = 0.32
Aerodynamic quality – 12.2 (calculation). Consumption 0.62 kg / kgs * h

Flight range without external tanks 3000 – 3500 km
With two external fuel tanks 4000 – 4300 km

September 2, 2016 at 8:50 pm in reply to: F-35 News and discussion (2016) take III #2151256

paralay
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All but the F-35 and Su-30MKI were carrying three external fuel tanks. Under this scenario, the Rafale had a maximum mission radius of 896 n miles, the F/A-18 816 n miles, the| F-35 751 n milesj the Eurofighter 747 n miles, the Su-30MKI 728 n miles and the Gripen 502 n miles.

Watch out for your hands…
Rafale: combat radius 1659 km (896 n miles), range 3300 km (3 external fuel tanks), 1659 : 3300 = 0.5
F/A-18: combat radius 1511 km (816 n miles), range 3300 km (3 external fuel tanks), 1511 : 3300 = 0.46
F-35: combat radius 1391 km (751 n miles), range 2200 km (no external fuel tanks), 1391 : 2200 = 0.63
Eurofighter: combat radius 1383 km (747 n miles), range 3700 km (2 or 3 external fuel tanks), 1383 : 3700 = 0.37
Su-30MKI: combat radius 1348 km (728 n miles), range 3000 km (no external fuel tanks), 1348 : 3000 = 0.45
Gripen: combat radius 930 km (502 n miles), range 2778 km (3 external fuel tanks), 930 : 2778 = 0.33
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