Side-by-side
Towable Passenger Stair (Tristair) vs Ground Power Units (400Hz)
Spec comparison for two products on Aviation Souk. Both compete in Ground Support Equipment (GSE).

Ground Support Equipment (GSE)
Towable Passenger Stair (Tristair)
by Mallaghan
Towable boarding stairs mounted on a rugged hydraulic steel chassis.

Ground Support Equipment (GSE)
Ground Power Units (400Hz)
by TK Elevator — Airport Solutions
Fixed apron- or bridge-mounted ground power for aircraft, replacing the APU.
| Cost of ownership | Towable Passenger Stair (Tristair) | Ground Power Units (400Hz) |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | Towable Passenger Stair (Tristair) | Ground Power Units (400Hz) |
|---|---|---|
| undefined | undefined | |
| undefined | undefined | |
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