N321WC Senior Aero Sport – PARTner 91 Arizona Aircraft Broker

Senior Aero Sport
Aerobatic Biplane
N321WC

Plans-built aerobatic biplane,
Oshkosh "Outstanding Workmanship" Winner

$115,000 USD

This plans-built, experimental, aerobatic biplane received top honors for "outstanding workmanship" at EAA Oshkosh.

The fully aerobatic, IO-540 equipped Senior Aero Sport was expertly built from Great Lakes plans, and has roots from the D'Apuzzo PJ 260. It is strikingly similar to a Great Lakes 2-AT, but instead of being open cockpit, it has a smoked bubble canopy which offers fantastic visibility. At the 2000 EAA AirVenture, judges found this aircraft to have outstanding build quality and it was recognized with the "Outstanding Workmanship - Plans Built" award.

Over the past two decades, N321WC has been lovingly cared for by its caretaker who is an FAA Principal Operations Inspector, an IA/A&P, and a very well qualified and rated pilot. The aircraft has been well preserved, always hangared, and conveys a tremendous amount of documentation including a full set of build plans.

Please carefully review the detailed, high resolution image gallery and lengthy walkaround video below. You'll see every inch of the aircraft. If you reach out to me, I can digitally share all logbooks and important documents.

General Specifications

Power - Lycoming IO-540-G1C5:	290 HP	Recommended Engine TBO:	1600 HRS
Wingspan:	27 FT	Fuel Capacity:	60 GAL
G-Load Capability:	+9G, -6G	Max Struct Cruise Speed (Vno):	150 MIAS
Main Gear Span:	8.5 FT	Cruise Speed (typical):	145 MIAS
Never Exceed Airspeed (Vne):	180 MIAS	Stall Speed (Vs):	45 MIAS

These specifications were gathered from a variety of sources, including the POH, and are subject to buyer confirmation.

Important Numbers

Born On:	11/19/1997
Serial Number:	001
Flight Rules:	VFR
*Airframe Total Time (AFTT):**	304 hrs
Engine Hrs Since Overhaul (SMOH):	304 hrs
Hartzell Prop Time:	304 hrs
Gross Weight:	2350 lbs
Empty Weight:	1883 lbs
Useful Load:	467 lbs
Next Condition Inspection Due:	Dec 2025
Transponder Cert 91.413 Due:	XXX XXXX

*Hours are a close approximation and will change as aircraft is flown.

Highlights

Aircraft based at KDVT Phoenix Deer Valley Municipal Airport, 12 nm NNW of KPHX Phoenix Sky Harbor Airport
Plans-built experimental category with excellent workmanship and fit/finish
EAA Oshkosh "Outstanding Workmanship" awarded in 2000
Very well documented, start to finish
All flush rivets, 4 ailerons, all metal upper wing center section
Finished with Stits and Imron paint
2 saddle tanks, 1 header tank, and 1 aerobatic tank, total capacity of 60 gallons of fuel
Always hangared, this aircraft has lived in Arizona and California since new
Established engine oil analysis report history
No accident history, logbook review reveals no significant events in the life of this aircraft
Complete logs, available digitally upon request

Avionics and Equipment

Garmin GNC250XL Comm Transceiver/GPS with moving map
King KT-76A transponder
Sigtronics Intercom System
EI Digital Fuel Computer
EI Digital Tach
EI Digital Oil Pressure/Temp Gauge
EI Digital Volt/Amp Meter
EI Digital EGT/CHT Gauge
Vertical Card Compass
No ADS-B
Christen Inverted Oil System
Hartzell 2-blade constant speed prop
Grove 1-pc Spring Aluminum Landing Gear
PlanePower 60 amp alternator
Scott Tailwheel

Aircraft Story

Here is some background on N321WC, as related to me by N321WC's caretaker:

"N321WC project began in Tokyo, Japan while Wally Chapin was a Captain flying for Japan Airlines. The project moved to Anchorage, AK when JAL relocated him. We had many annual EAA Chapter 42 meetings at his garage/machine shop checking the progress.

In 1995, Wally sent the 90% completed project to Pete Gneddinger (of Christen Eagle from Hollister, CA) workshop in Glide,OR, for final assembly, covering and paint. My Father was there to witness Pete make the first few flights. It was certificated in 1997, and began it's 25-hour Phase 1 test period.

Wally lost his medical, and was never able to fly as PIC. Another friend ferried WC from Glide, OR to Livermore, CA where Wally tinkered with it and Dr. Alan Liebermann eventually flew off it's 25-hour Phase 1 in 2000.

That is when I had the great honor of flying WC from Livermore CA to Oshkosh Airventure 2000. It won the Outstanding Workmanship - Plans Built award.

In 2002, My Father and I flew WC from Livermore to Phoenix. I have been maintaining WC since 2002. I have given rides to family and family friends ever since then. I have flown WC to many Copperstate Fly-Ins.

The plan was that I could fly WC until such time as a grandchild (or great grandchild) would step up and take ownership. It is now recognized that this will not occur. We really hope to find WC a good home with someone who will love and enjoy this beautiful piece of engineering as much as we have."

Aircraft Evaluation

As the broker, I make a significant effort to represent an aircraft up front in as much detail as possible. I share with you not only the benefits and features I've discovered, but also the issues or concerns that I found during my extensive intake and deep logbook review process. I present well over 100 detailed, high resolution images, and video. Please review all images in detail. All logbooks and other important documents are professionally scanned, well organized, and digitally available on request.

My goal is that any Buyer making the effort to look at an aircraft in person can first see the aircraft "virtually" on this web page and through video. This helps the Buyer avoid surprises when they arrive to view the aircraft in person.

Exterior - Overall, the exterior of N321WC is impressive. The Imron paint on Stits fabric is stunning, and the colors cleanly stand out from the white base. It looks almost as if the aircraft was recently painted (the paint was done in 1998). The Grove 1-pc solid aluminum main gear is beautiful.

During the intake process, I struggled to find any exterior flaws. I noted one deep scratch in the lower left wing, where the leading edge meets the tip. I also saw several horizontal cracks in the paint along the empennage, below and behind the canopy. These cracks appear to be purely cosmetic, though. These blemishes are well documented in the Image Gallery below.

Instrument Panel - The main (pilot) panel is cleanly laid out, and I saw no glaring blemishes or other issues. It is a simple VFR panel, tastefully appointed with a suite of EI digital gauges and an EI fuel computer which displays, among other things, current fuel burn rate, fuel used, and fuel remaining. A Garmin GNC250XL provides communications and a GPS with moving map. This specific COM/GPS radio is praised by pilots for having a crisp, easy to read display, and for being easy to use.

Interior - The spartan interior is simple and uncluttered. The metal seat pans are ready to accommodate your selection of seat pads. During the evaluation, I noted no issues or concerns regarding the interior. Please review the Image Gallery below, it contains high-resolution, detailed images of the interior.

Overall - N321WC is a beautiful, responsive, strong, well-crafted biplane that has a clear presence on the ramp. During the hour I had it out in front of the hangar for my evaluation, several people stopped by, admired it, and asked questions. This aircraft has a rich history and a wonderful story, and is ideal for the pilot who sees his or her aircraft not as an appliance, but as an integral part of his/her flying life.

Please reach out to me so that I may answer any questions you have.

Logbooks available digitally upon request.

Aircraft Walkaround