Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 50; Flight Crew Total 3200; Flight Crew Type 50
Communication Breakdown; Confusion; Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Became Reoriented; Flight Crew Returned To Clearance; Flight Crew Requested ATC Assistance / Clarification
Human Factors; Procedure
While picking up clearance in BHM I failed to verify spelling of first fix and I failed to verify it on map; so on departure I was given direct GUMMP and I went direct GUMPE. Departure called and stated [we were] left of course; I asked for [a] vector and then asked for correct fix spelling. Afterward I requested and received direct to correct fix. In [the] future to avoid [this]; I will verify all spelling with clearance and verify on EFB that [the] route makes sense and clarify any discrepancies before taxi.
Light Transport aircraft pilot reported a track heading deviation during departure from BHM airport after confusing similar sounding fixes GUMMP and GUMPE.