FRANCE
ASPIN I
TURBOMECA
Turbojet with ducted fan, single stage compressor and two stage turbine.
Air intake and fan
Annular air entry containing one row of variable-incidence entry vanes, a single stage compressor fan and one row of fixed straightening vanes.
Fan is driven by compressor shaft through coupling and reduction gear. After fan the air is divided into primary and secondary flows, the former passing to the power section and the latter by-passing that section in an annular casing to the tailpipe where it mixes with the primary jet efflux.
Compressor
Single-stage centrifugal compressor. Single-sided impeller.
Carcatéristiques de l'Aspin I
| Constructeur | Turboméca |
| 1er essais | 1950 |
| Certification | |
| Type | Turboréacteur à double flux |
| Nb. construits |
Dimensions
| Diamètre | 600 mm | 23.6 in. |
| Longueur | 1210 mm | 47.5 in. |
Masses
| Non équipé | kg | lb |
| Equipé | 127 kg | 279 lb |
Performances
| Régime Maximum | t/mn | rpm |
| Régime au ralenti | t/mn | rpm |
| Puissance max | 200 kgp | 440 lb |
| Puissance max continu | 160 kgp | 352 lb |
| Puissance au ralenti | kgp | lb |
| Taux de compression | / 1 | |
| Débit d'air max. | g/s | lbs/sec |
| Température max cont. | deg.C | def.F |
Consommations
| Consommation au décollage | 0,64 kg/kg/h | 0.640 lb/lb/h |
| Consommation max continu | 0,58 kg/kg/h | 0,54 lb/lb/h |
Combustion chamber
Annular type, with rotary fuel injection as in Piméné.
Turbine
Two-stage axial flow turbine
Jet Pipe
Fixed inner cone, annular turbine nozzle and outer pipe wherein the jet efflux and by passed secondary air mix.
Control
Single throttle lever determine the fuel flow and position of variable incidence vanes. Egine speed controled by centrifugal governor. For rapid manoeuvrability a push button operates and electro-hydraulic servo-motor with over-rides manual control and at maximum rotation speed the throttle lever can be used solely to control the entry vanes to obtain rapid variation of thrust without having to oercome the inertia of the rotating assembly.
Starting
Throttle at "starter" setting only controls fuel delivery. Entry vanes are closed and engine speed governor is ineffective. Normal starter spins rotating assembly. When engine reaches a rotating speed of 70 per cent. of maximum governor and vane become operative.
List of Aircraft on which the "ASPIN I" was installed
