Recent content by Aviatorzaki77

Engine weight to electric motor is at least 50% saving.for 2 engine = 5,000 Lbs,CFM56-5A series produces 22,000 Pounds x 2 44000 pounds trust,8000 KW Needed to produce same thrust but at 80% Speed,500 Mph, I have calculated for duct fan with 48in blades 24in pitch at 7200 RPM,SO there will be...

It looks like a cri cri scaled version with electric propulsion system.

https://feixiang668.en.made-in-china.com/product/qXBQiGCbLepj/China-Dle-222-4-Cylinder-Gas-Engine.html

pecifications: Type: 2 Stroke Bore: 55mm Stroke: 42mm Displacement: 200CC Power: 23HP/8000rpm Compression Ratio: 10:1 Reduction Ratio: 1:2.7 Transmission Type: Belt Starting Type: Electrical Start Net Weight (without muffler): 10.3 Kg Premium Muffler Weight: 2.2 Kg Spark Plug: DLE-8A Petrol...

It reminds me Of Mr.Mark Stull, Such a great Aviation pioneer who recently left this world, His contribution to this forum is Uncomparable,I was reading most of his posts since long time, specially about his twin boomed UL,and Hirth Engines,The way he reply to each query was very articulate in...

One of a off-the shelf electric actuator, light weight,cheap and locally available for you, Mini Linear Actuator (Stroke Size 3", Force 50 Lbs, Speed 1.18"/sec)

It will take 2 sec for 6cm linear stroke with load of 200N push or pull,

A kind of custom made electric actuator with 6-8 cm movement, With that I can achieve 30 degrees flap angle.

Flap Mechanism is electrical most probably window glass geared motor it will be installed internally at wings main spar, I will give you the drawings very soon, And Pitching Movement will be around 30 Degrees,

SO I have to limit my flap angle, That is what a pilot has to do use flaps for lift or brakes,

Flaps are not used as brakes. Flaps are used to increase and maintain lift at slower speeds. During the flare the flaps change horizontal energy to vertical energy that is used to decrease the sink rate prior to touchdown. Fowler type flaps, as on Cessnas, deflect air downward and the gap...

I have compered to an ultralight engine, weight number goes about 40 kgs with prop & reduction for rotax 502, And ZDZ360 with prop comes around 12kgs with every thing included ignition battery mufflers , 28 Kgs weight saving on engine alone, thin wing design will save further 5 kg, and my own...

Thanks For analyzing and I made some changes,Kindly advise on this,I would like to design a All metal single seat Aircraft high wing tricycle gear Tractor engine,I have got access to CNC machine,Aircraft will have wing span of 5.4mts and 1.3mts chord,To minimize stall it got 60% span flaps 30%...

Check this out

Check this out and workout for center of lift for this wing profile,