N21D - 1975 AEROSTAR 601P/SUPERSTAR 680

1975

AEROSTAR

601P/SUPERSTAR 680

61P0205018

N21D

Used

IFR

KCOS

World's fastest Aerostar. As much as 20 KTAS faster than any other Aerostar same weight, same temp, same fuel flow. Turbocharged, intercooled, Two recent world speed records. Queen of the fleet or runner up five times in the last Century. Mechanically perfect. Aerostar specialist maintained for 35 years. Pilot getting old.

4769

1,300 NM

6,300 lb

1,693 lb

230 gal

Yes

Yes

N21D is mechanicaly perfect and up to date on all Machen upgrades, including an aux fuel tank,the nose gear structure strength improvement, 6 puck brakes,engine driven a/c compressor 134a,as well as aileron trim and speed brakes. One time STC removable Ozone nose scissor pin Extra speed comes from careful attention to drag and turbulence reduction. Low drag Sensor Systems antennas and their placement, Rigging of gear doors, control surfaces, smoothing of the edges of de ice boots (including prop boots),helped reduce turbulence and drag. Engine intake airflow was smoothed. Exhaust turndowns were reduced closer to the original square cut offs. Cabin heat exchanger intake turbulence was reduced consistent with original adjustable closing flaps. Edges of most square edge exposed washers are tapered.

LYCOMING

L-19150-48A

350 HP

754

SMOH

1800

Yes

Overhauld by Pen Yan. Comp 76-77 all cylinders spectro stable burns about 1 qtl oil 5 hrs Boroscopes clean Man Press stable at FL250

LYCOMING

IO-540-S1A5

L-19102-48A

350 HP

706

SMOH

1800

Yes

Comp 76 to 78 Boroscope clean spectro stable burns 1 qt oil per 5 hrs man press stable at FL250

HARTZELL

482

HARTZELL

482

3

Aluminum

Yes

These are "long" props faa limited to 41 in MP for noise that reduces HP to 340. Short props are less noisy an can use 43 in MP for HP of 350. Some say that the square tip short props are less efficient. functioning hot props

N21D is easy to safely fly. It enjoys three attitude indicators all independently powered and two HSIs also independently powerd (pnematic and electric). An ILS displys 4 glide slopes and 3 CDIs. The fully populated annunciator ( low fuel px ,low oil px, low pnu px, low alternator voltage for each engine,hi and low buss voltage CO, and O2 reqd,door open,low fuel, heater failure, below 100 ft with gear up, all driving a master caution light) greatly somplifies systm scan and provides instant warning of trouble. A SafeFlifgt angle of attack meter and stall warning horn combined with an HTL Halon fire warning light and 3 lbs of pressurized Halon offer unique fire extinguishing capabilities. the lowered control yokes eliminate visual blockage of the lower instrument panel. An icing control panel centralizes deice management. A military style lighted scroll checklist soon proves indipensilble. Engie shutdown and restart checlists are on the panel while the limitations are moved to a big sunscreen. A Piper relief tube is just under the seat for older pilots and the seats slide like glass

Yes

KY196 comm (2),KN90Bgps,KN53nav,KN63dme,KI229rmi,KR87adf,RDR2000radar,Terra TRI3000radar altimeter,Terra 28-24 EmcyPowrUnit,NSD 360hsi,Stec St-800HSI,Century4autopilot,Centur$ 4inch attitude indicator,AMI 2 inch attitudegyro,AMI 3 inch attitude gyro, KMD 850 MultiFunctDisplay with Andyne TAS 601 TCAS and KDR 610 NexRad radar weather,PS Intercom,Alcor 6 probe analog EGT(2) calibrated in TIT, ,Shadin AMS Alt Alt,Guardian electronic CO detector,. The Terra EPU has a 6amphr rechargable battery kept charged by the main buss. In the event of a total electrical failure at night at FL230,The EPU instantly powers the 2inch attitude indicator pilots instrument floods elezator trim and pressurization

Yes

Yes

Yes

Yes

1995

Hot props, an Aztec style hot plate, winglets deice boots. Removable Ozone nose link to prevent towing damage

1998

4

Passenger

fire retardent interior and seats leather and sheepskin metal 176 panel cover instead of plastic. sound reducing 1/4 in foam and aluminum sheet applied to metal interior skin. all reachable aluminum coated with LPS 3 anti corrosion spray throughout airplane

Annual Altimeter and Transponder were done in 2021. All rquired inspections are complete, Concord Gell pack battery and O2 bottle pressure check and ELT battery are all done or replaced in the last year

Yes