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1. 03:51 PM - John Kent sent you this eBay item: Ferranti Mk14 Gyro Horizon and Inverter Kit (#4551535658) (eBay Member)
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| Subject: | John Kent sent you this eBay item: Ferranti Mk14 Gyro Horizon |
and Inverter Kit (#4551535658)
0.89 MIME_BOUND_DIGITS_7 Spam tool pattern in MIME boundary
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--> RV4-List message posted by: "eBay Member: jakent@unison.ie" <member@ebay.com>
piratekent1 sent you this eBay item.
Personal message:
Got one of these in my RV-4 . Very nice unit, 8 degree tilt, ex military - pretty
bullet-proof, (allegedly!). The inverter unit is top class and light, though
the gyro is a little heavier than the vacuum type, but you don't have to cart
around the engine driven sucker and accessories, plus you get space for an auxilliary
alternator for the all electric option.
John Kent RV-4 EI-DIY.
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View this Item on eBay at http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item4551535658&ssPageNameADME:B:EF:US:1
Ferranti Mk14 Gyro Horizon and Inverter Kit
Item number: 4551535658
Seller: adtempus(549)
Positive Feedback: 99.5%
Member since Nov-10-00 in United Kingdom
Starting bid: US $10.00
(Reserve not met)
Time left: 7 days 18 hours
10-day listing
Ends May-30-0510:20:29 PDT
Item location: Oxford, Oxfordshire
United Kingdom
Ships to: Worldwide
Summary
Ferranti Attitude Indicator / Gyro Horizon. Model: FH14F/1, RAF Stores Ref: 6A/14030,
Ferranti Part No: 64/51030, cable and a 115volt 400Hz inverter to drive
it, making up a complete kit, ready to use. Gyro fits standard 3.25" sq panel
hole and has electric levelling / fast erect via push button switch on face.
The inverter is a professionally built pwm design, with glass epoxy pcb's in a
small diecast box. It uses digital logic and power mosfets to generate a sine
wave 115v 400Hz regulated output via custom wound transformers. It also provides
a 24 volt dc ouput to drive low power 24 volt dc instruments and incorporates
timing logic to auto level the gyro while spinning up, soft start, low
voltage and reverse polarity protection and rfi suppression. It draws approx
1.8 amps at a nominal 12-14 volt input, once the gyro is fully spun up. A
different build of the inverter will power Ferranti Mk 6 series horizons, other
horizons and instruments that require a 115 volt 400Hz single or three phase
supply. The inverter has a true 3 phase output, so will drive gyros such as
the Sfena series and other gyros that are fussy about input power. Please enquire
if you need an inverter only for other applications.
The horizon is ex uk mod, hermetically sealed and is mil quality. It is checked
out in the lab here and run for a couple of days before shipment. As received,
it is set up for an approx 8 degree slope instrument panel angle, but can be
reworked here for other panel angles, resealed and inert gas filled before shipment
on request. The inverter and cable assembly is made to order and delivery
for the complete horizon / inverter kit is 3-4 weeks. As this is an ex mod
surplus instrument, there is no paperwork, so should only be used in homebuilt,
experimental or permit aircraft. Warranty is 12 months for the horizon and
lifetime for the inverter. These gyros originally cost the uk government ~12k
each, so now quite good value when compared against the cost of other electric
horizons.
Notes:
Unless otherwise stated, this item is in good working order and has been examined
to the best of my ability, with known faults described . Spares, repair or
parts item sales are as is, final and may have faults not known to myself, though
every effort is made to describe accurately.
Thanks for looking and good luck with the bidding...
Finally:
As part of a long term interest in the restoration, servicing and enjoyment of
old mechanical cameras, am now offering a cla / repair service for such cameras,
lenses, obscure stuff like Nikon F and F2 Photomic heads, motor drives and
other electric and electronic photo related items. The main business here is
electronic design and embedded systems engineering, but have restored old photo
equipment as a part time business for many years. Nikon and rangefinders
are the main interest, but may be able to help with others as well, though to
do the job properly on any 30 or 40 year old camera usually means a stripdown
and can take several hours. I can also modify the older cameras to use alkaline
cells, as a replacement for the mercury types. If you have any questions with
regard to this, please get in touch.
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