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SU-22 Fitter

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SU-22 Fitter

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Designed by Robertus

If you download plans and build the SU-22M4 Fitter, please consider sending the designer a donation for all of his hard work and inspiration!  Keep the plans coming by supporting his hard work!

PayPal | rh@netpak.pl

Suggested Donation: $10.00

NOTES FROM THE DESIGNER

This is my the most complicated aircraft. The build is not for beginners at all, especially with swing wing mechanism. You need some experience with building with insulation foam or depron (a lot of bending and maching). 

This is plane with swing wing, so CoG point is moving with it, from 405mm to 425mm from the end of fuselage. I suggest use 425mm CoG point on maiden flight to good flying with max and min wingspan.

Construction of this Sukhoi is similar to paper models. In building thread I've put a lot of pictures from building to help you.

In center wing section is "hand made" airfoil to cover wing mechanism, moving part of wings are with KFm2 airfoil.

If you ask me what is the difference in flying with max or min wingspan, I'll tell you, there is no big difference. The max or min speed is the same, I think. I've got only tailerons, so with min wingspan setup, plane has better answer for roll commands than in max wingspan. 

But the main thing is - It's looking so cool in the air when wings geometry is changing.

Be sure to check out my YouTube Channel and subscribe for new videos!

SPECIFICATIONS

Length: 110cm |Wingspan: min 77cm - max 100cm | AOW: 920g| Center of Gravity: 425mm from the end of fuselage| Engine Emax GF2215/15| 8x4 APC Propeller |40amp ESC | Two, 2.5kg servos for tailerons, 10kg servo for swing wing | 1300mAh 30C Lipo 11.1 Battery |Wing loading 60g/dm2

BUILD THREAD

RC GROUPS BUILD THREAD

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Designed by Robertus

If you download plans and build the SU-22M4 Fitter, please consider sending the designer a donation for all of his hard work and inspiration!  Keep the plans coming by supporting his hard work!

PayPal | rh@netpak.pl

Suggested Donation: $10.00

NOTES FROM THE DESIGNER

This is my the most complicated aircraft. The build is not for beginners at all, especially with swing wing mechanism. You need some experience with building with insulation foam or depron (a lot of bending and maching). 

This is plane with swing wing, so CoG point is moving with it, from 405mm to 425mm from the end of fuselage. I suggest use 425mm CoG point on maiden flight to good flying with max and min wingspan.

Construction of this Sukhoi is similar to paper models. In building thread I've put a lot of pictures from building to help you.

In center wing section is "hand made" airfoil to cover wing mechanism, moving part of wings are with KFm2 airfoil.

If you ask me what is the difference in flying with max or min wingspan, I'll tell you, there is no big difference. The max or min speed is the same, I think. I've got only tailerons, so with min wingspan setup, plane has better answer for roll commands than in max wingspan. 

But the main thing is - It's looking so cool in the air when wings geometry is changing.

Be sure to check out my YouTube Channel and subscribe for new videos!

SPECIFICATIONS

Length: 110cm |Wingspan: min 77cm - max 100cm | AOW: 920g| Center of Gravity: 425mm from the end of fuselage| Engine Emax GF2215/15| 8x4 APC Propeller |40amp ESC | Two, 2.5kg servos for tailerons, 10kg servo for swing wing | 1300mAh 30C Lipo 11.1 Battery |Wing loading 60g/dm2

BUILD THREAD

RC GROUPS BUILD THREAD