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Sig Somethin Extra Kit 1435Mm Ws 40/46-5Jun-65

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The Sig Somethin' Extra has it all

Somethin' Extra Model Airplane
Good looks, incredible performance, Sig quality balsa and ply construction and every part in the kit is laser-cut!

This kit can literally be built as fast as the modeler can apply CA glue and accelerator. Fantastic flight performance using either 2-stroke or 4-stroke engines. The aerobatic capabilities of this model are virtually unlimited due to its thick airfoil section and very light wing loading. A perfect club contest airplane.

Wingspan 51.5 in 1308 mm
Wing Area 614 in? 39.6 dm?
Weight 4.25 - 4.75 lbs 1928 - 2155 g
Wing Loading 15.9 - 17.8 oz./ft? 4852 - 5432 g/m?
Length 48.25 in 1226 mm
Radio Req. 4-Ch w/5 Servos
Engine Req. .40-.46 in? (6.6-7.5 cm?) 2-Stroke
.56-.65 in? (9.2-10.7 cm?) 4-Stroke


100% Laser-cut parts for absolute accuracy and fast building
Famous Sig quality Balsa and Plywood
Complete hardware packages included
Pre-formed and pre-drilled .090 hardened aluminum landing gear
Precision molded plastic wheel pants

Crystal clear molded plastic canopy
Complete instruction manual with photographs for fast easy assembly
Full-size cad-generated plans - rolled
Removable wing panels for easy storage and transport
Based on ultra-light ultra-strong tube system
  • Our shipping times are typically 24-48hrs from ordering during normal business hours.
  • We use a Courier and Australia post as our agents.  Please allow typical delivery times for your area.
  • International shipping is priced per country, please check your cart before ordering.
  • We are unable to ship Dangerous goods overseas. 
  • We are also limited by length of some parcels. Anything over 1.05m will need a specialist courier quote which we can provide.
  • When adding items to your cart you can get a quote for shipping first before commiting to the order.

Customer Reviews

Based on 4 reviews
Robert Fiumara (robjan01)
Great Plane and Great Service from HTDirect

Really pleased with this plane.The delivery from HTDirect was very quick and sales staff were helpful when asked about the plane.All in All ..I’m very happy !

Fantastic Service from HTDirect !

I can't comment on the attributes of the specific kit personally as it will take some time to build ( of course ) but forum reviews all rave about this particular plane. I can however comment on the service I received. It was perfect. The order was dispatched from local stock, shipping costs were low ( I think I got free shipping i.i.r.c. ) and it was well packaged. Couldn't ask for better service and I am so glad someone still keeps a good range of these real kits in stock. Oh and almost forgot - the prices here are actually the best anywhere, and in some cases by a significant margin. As I said, perfect.

Anthony Smith
Something Extra

The service was excellent for this great looking kit.

Sig Somethin Extra

A great Sig kit to keep me busy during the holidays.
Shipping was quick and efficient. Happy with everything.