SL211RM
Modification of suspension system and skirt of Raven S-55A hot air balloon envelope to achieve compatibility with Barnes Balloon Works gondola Models 4.0 and 4.5 and Model T3-017 burner system. Held by Raven Industries, INC. Last revised February 18, 1981. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Aerostar International
- Models
- S-55A
- Type certificate
- A15CE
- On this site
- Aerostar International Inc S-55 13 registered
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 21, 2026.