| Tail Number / N-Number | N947M |
| Manufacturer | PIPER |
| Model | PA-30 |
| Year Built | 1969 |
| Manufacturer's Serial Number | 30-1947 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 6 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | LYCOMING |
| Engine Model | IO-320 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 150 hp (112 kW) |
| Total Horsepower | 300 hp (224 kW) |
| Average Cruising Speed | 139 miles per hour |
| Type of Registrant | LLC |
| Owner Name | MASTIFF AERO LLC |
| Street | 1903 EMBARCADERO RD |
| City | PALO ALTO |
| State | CA |
| Zip Code | 94303-3342 |
| Region | Western-Pacific |
| County | Santa Clara County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1969-08-06 |
| Certificate Issue Date | 2006-07-19 |
| Last Action Date | 2022-11-08 |
| Expiration Date | 2027-10-31 |
| Status | Valid Registration |
| Mode S Code | 53224074 |
| Mode S Code Hex | AD283C |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N947M.
| Tail Number / N-Number | N947M |
| Manufacturer | DEHAVILLAND |
| Model | DH-60G MOTH |
| Manufacturer's Serial Number | 1084 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 2 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Individual |
| Owner Name | WELSH MICHAEL C |
| Street | 3502 SEQUOIA AVENUE |
| City | BALTIMORE |
| State | MD |
| Zip Code | 20760 |
| Region | Eastern |
| County | Santa Clara County |
| Last Status | Valid Registration |
| Cancellation Date | 1938-09-15 |