Tractor vs pusher propeller — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/tractor-vs-pusher-propeller/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Catalog version: 2026-10-20

Sizes: see table below
- A tractor prop pulls from the front; a pusher pushes from the back. The FAA notes pusher propellers are subject to more damage than tractors because of ground clearance (FAA Powerplant Handbook).
- Propwash over a tractor's tail increases rudder effectiveness (FAA PHAK ch.6), which pushers lose; McCombs notes tractor vs pusher mounting shifts the required fin size (Model Aviation). APC pusher props carry a 'P' suffix (APC).
- The file is a reference example built by Xem Studio from the numbers above. Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

parameter  value or range  source
Damage exposure  pushers more than tractors (ground clearance)  FAA Powerplant Handbook
Rudder effectiveness  increased by propwash on tractors  FAA PHAK ch.6
APC pusher suffix  P  APC Nomenclature

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- FAA: Aviation Maintenance Technician Handbook - Powerplant, Ch. 7 Propellers — web — Publisher's page; dimensions are facts — https://www.faa.gov/sites/faa.gov/files/09_amtp_ch7.pdf
- FAA: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25), Ch. 6 Flight Controls — web — Publisher's page; dimensions are facts — https://www.faa.gov/sites/faa.gov/files/08_phak_ch6.pdf
- Model Aviation (AMA), W.F. McCombs: Vertical Tail Size for Models (Apr 1992) — web — Publisher's page; dimensions are facts — https://library.modelaviation.com/article/vertical-tail-size-models-1
- APC Propellers: APC Propeller Nomenclature — web — Publisher's page; dimensions are facts — https://www.apcprop.com/wp-content/uploads/2023/05/APC-Propeller-Nomenclature.pdf

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/tractor-vs-pusher-propeller/index.json
API: https://xemstudio.com/api/geometry?object=tractor-vs-pusher-propeller