E-flite Apprentice STS 1.5m (smart trainer) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/e-flite-apprentice-sts-1-5m/  (sheet CC BY 4.0)
Basis: Secondary source: RaceDayQuads (copy of Horizon Hobby spec table) (copy of the maker's figures; the maker publishes none directly)
Catalog version: 2026-10-20

Overall (mm): length 1080, width 1499
- The Apprentice STS is E-flite's 1.5 m high-wing trainer (EFL3700 RTF / EFL3750 BNF Basic). The file models only the wingspan × length plan-view envelope.
- Height, wing area and prop size are not published on the listing used; the figures come from a retailer copy of Horizon Hobby's spec table, so the entry is marked secondary.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.
- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.

dimension  value
Wingspan  59 in (1499 mm)
Length  42.5 in (1080 mm)
Flying weight  1500–2000 g
Motor  Brushless outrunner (installed); size/Kv not published on listing
Servos  (2) 13 g digital and (4) 37 g servos (installed)
Recommended battery  3S 11.1 V 3200–4000 mAh LiPo, EC3 or IC3 connector
CG  3.125 in (79 mm) behind wing leading edge at the fuselage
Height  not published
Wing area  not published

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- RaceDayQuads (copy of Horizon Hobby spec table): E-flite Apprentice STS 1.5m RTF Basic — web — Publisher's page; dimensions are facts — https://www.racedayquads.com/products/efl370001-e-flite-apprentice-sts-1-5m-rtf-basic-smart-trainer-electric-airplane-1500mm-w-safe-technology

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/e-flite-apprentice-sts-1-5m/index.json
API: https://xemstudio.com/api/geometry?object=e-flite-apprentice-sts-1-5m