Construction plan Thermy XT 25

When Wolfgang Werling talks about his Thermy XT with a wingspan of 3.3 m, his eyes light up at the fantastic flight characteristics. The XT is an impressive model with a powerful 4s drive. Is there a smaller version available? Of course! Introducing the XT 25 with a wingspan of 2.5 m! The XT 25 scores with its compact dimensions, inexpensive drive and high agility. What has remained the same is the unmistakable XT design and the exceptional flight characteristics of this all-rounder. The XT 25 is very versatile, from thermal glider to nimble all-rounder, it can do it all.

The printed construction plan is delivered by the publisher (unlike the supplementary construction plan) printed on one side on white paper. The delivery includes construction instructions.

Technical specifications

• Wingspan:  2,500 mm
• Length:  1,330 mm
• Airfoil: SD 7037 mod.
• Wing area:  57 dm²
• Flying weight glider:  from 1,600 g
• Flying weight of electric glider:  from 1,850 g
• Wing loading of electric glider:  from 31 g/dm²
• RC:  motor, aileron, elevator, rudder, flap

Recommended drive and servo

• Motor: Hacker A30 12XL V4
• Battery: Hacker TopFuel Eco-X 2,400-4S MTAG
• Controller: Hacker Spin 66 Pro
• Propeller: Hacker/Falcon CFRP folding propeller 13×7 or aero-naut CAMcarbon Z 13×8
• Spinner:  aero-naut Z spinner 42 mm with 5 mm motor shaft clamping cone
• Servos in fuselage:  2× KST X10 710 V8.0
• Wing servos: 4× KST X10 Mini V8.0 with mounting frame