Mitchell Aircraft - Fixed Mounting Mechanical Tachometer - D1-112-5025
Genuine OEM Part
Description: Fixed Mounting Mechanical Tachometer
Part Number: D1-112-5025
Alternate Part Numbers: P-551-TA
Product Overview
A tachometer that is driven through the media of a mechanical connection and includes provisions for fixed mounting.
In 1985 AC discontinued production of the popular “RT” series of mechanical tachometers. Mitchell immediately entered the market to fill the void. These tachs feature exceptional accuracy and reliability. Mitchell tachs come with a factory-direct 2 year warranty. The range on all models is 500 to 3500 RPM. Accuracy is +/- 25 RPM from 1000 to 3000 RPM. Determine the correct part number from the chart below. All Mitchell tachs are FAA approved to TSO-C49b for certified aircraft.
2-1/4" tachs are direct replacements for the 3-1/8" tachs to save panel space.
Direction of rotation is defined as when viewing the front of the tachometer.
Item Specification
| Mounting Type | Panel | |
| Drive Connection Type | Threaded | |
| Overall Depth | 3.480 inches nominal | |
| Overall Height | 3.250 inches nominal | |
| Overall Width | 3.250 inches nominal | |
| Mounting Feature Type | Surface | |
| Case Shape | Square | |
| Scale Measurement Range | +300.0/+3500.0 | |
| Scale Quantity | 1 | |
| Dial Quantity | 1 | |
| Pointer Quantity | 1 | |
| Pointer Movement Direction | Clockwise | |
| Scale Measurement Unit | Revolutions per minute |
Fits in
- Aero Commander (Ayres Corp.) B1A, S2B, S2C, S2D, S2R Stearman--A75 (P & W eng.)
- Aero Commander: A9, A9A, A9B
- Aeronca: 15AC Sedan
- Aeronca--Champion, Chief (early models) Piper--PA15, PA18, (W/TCM eng)
- Aeronca--Champion, Chief (late models)Champion--7AC, 11AC, 7CCM Beech--All Musket
- Alon: F1, F1A, A-2, A-4 & 415C. D, E, F, G (Including Ercoupe and Forney)
- Beech: 35, A3S, B35, 35R
- Beech: C35, D35, E35, F35
- Bellanca/Champion: 7EC, 7FC, 7GC, 7HC,7GCB, 7K, 7ECA, 7GCAA, 7GCBC, 7KCAB, 8KCAB, 260, 14-19, Viking 300, Turbo Viking
- Bellanca/Champion--7AC Stinson--105,108
- Bonanza Models-G35 thru V35, V35TC, 36, A36, 95, B95, B95A, D95A Cessna: 150, 152, 172, 177, 185 & 188 (with IO-520 eng), 206, 207, 210, 310, 320 Helio: H250, H391, H392, H395 Navion: E, F, G Stits: SA9A, SA9B
- Call: A2, A3, A4, A5, A9
- Cessna: 120, 140, 170, 175, 180, 182, 185 (with IO-470 eng.) 188, 336, 337
- Culver: Cadet
- Grumman/American: AA-1, AA1A, AA-5
- Grumman--G164
- Lake Aircraft: C-1, C-2, L-4, LA-4SC, LA5
- Maule--M5/6/MX7-180, M5/6/7/MX7-235
- Mooney: Mark 20, 20A, 20D, 21, 200, 201, 202, 220
- Piper: PA12, PA16, PA18, PA20, PA22, PA23, PA24, PA25 PA28, PA30, PA32, PA39
- Rockwell--112, 114
- Taylorcraft: 19,15A, 20, 20AG, Zephyr
- Temco: (Swift; GC-1, GA-1B)