Experimental aircraft makes forced landing in 1h0 airspace.

Attributes
ACN	405712
Time
Date	199806
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : 1h0
State Reference	MO
Altitude	msl bound lower : 1400 msl bound upper : 1400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Experimental
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	oversight : pic
Qualification	pilot : private
Experience	flight time last 90 days : 9 flight time total : 477 flight time type : 9
ASRS Report	405712
Person 2
Affiliation	Other
Function	observation : passenger
Events
Anomaly	aircraft equipment problem : critical non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

This was my 4TH solo flight since completing my chkout in our experimental aircraft. The preflight inspection, done according to the manufacturer's checklist, was normal, and the engine had been running well each flight since acquisition. We fueled the airplane, and I added the oil to the tanks before fueling, added the gas, and gently shook the wings to mix the fuel and oil well. (Engine is a 2 stroke 65 hp rotax 532.) we then went inside approximately 10 mins, so the oil should have been well dispersed. We got in the airplane, applied seat belts. Engine start, taxi, run-up and water temperature were all normal, takeoff was normal. We flew around the airport approximately 10 mins. Both egt's were normal, and I flew to my practice area. I then noticed a light spray of some kind on my leg, which had never happened before. We also had a new water temperature gauge. This was its first flight, it indicated 235 degrees. As we reached the fields (approximately 2-4 mi from the airport), I lost power from 6000 RPM to 3800-4000 RPM, the engine was running rough and my left egt indicated zero (both had indicated 1000 degrees until then, their usual reading). I was not sure how long it would be until complete engine failure would occur, or if I could make the airport with enough altitude to maneuver for landing. I spiraled down and landed in the large field below me. Landed with no damage to the airplane and minimal crop damage. Neither my father nor I were injured. We contacted the landowner and reported the landing.

Original NASA ASRS Text

Title: EXPERIMENTAL ACFT MAKES FORCED LNDG IN 1H0 AIRSPACE.

Narrative: THIS WAS MY 4TH SOLO FLT SINCE COMPLETING MY CHKOUT IN OUR EXPERIMENTAL ACFT. THE PREFLT INSPECTION, DONE ACCORDING TO THE MANUFACTURER'S CHKLIST, WAS NORMAL, AND THE ENG HAD BEEN RUNNING WELL EACH FLT SINCE ACQUISITION. WE FUELED THE AIRPLANE, AND I ADDED THE OIL TO THE TANKS BEFORE FUELING, ADDED THE GAS, AND GENTLY SHOOK THE WINGS TO MIX THE FUEL AND OIL WELL. (ENG IS A 2 STROKE 65 HP ROTAX 532.) WE THEN WENT INSIDE APPROX 10 MINS, SO THE OIL SHOULD HAVE BEEN WELL DISPERSED. WE GOT IN THE AIRPLANE, APPLIED SEAT BELTS. ENG START, TAXI, RUN-UP AND WATER TEMP WERE ALL NORMAL, TKOF WAS NORMAL. WE FLEW AROUND THE ARPT APPROX 10 MINS. BOTH EGT'S WERE NORMAL, AND I FLEW TO MY PRACTICE AREA. I THEN NOTICED A LIGHT SPRAY OF SOME KIND ON MY LEG, WHICH HAD NEVER HAPPENED BEFORE. WE ALSO HAD A NEW WATER TEMP GAUGE. THIS WAS ITS FIRST FLIGHT, IT INDICATED 235 DEGS. AS WE REACHED THE FIELDS (APPROX 2-4 MI FROM THE ARPT), I LOST PWR FROM 6000 RPM TO 3800-4000 RPM, THE ENG WAS RUNNING ROUGH AND MY L EGT INDICATED ZERO (BOTH HAD INDICATED 1000 DEGS UNTIL THEN, THEIR USUAL READING). I WAS NOT SURE HOW LONG IT WOULD BE UNTIL COMPLETE ENG FAILURE WOULD OCCUR, OR IF I COULD MAKE THE ARPT WITH ENOUGH ALT TO MANEUVER FOR LNDG. I SPIRALED DOWN AND LANDED IN THE LARGE FIELD BELOW ME. LANDED WITH NO DAMAGE TO THE AIRPLANE AND MINIMAL CROP DAMAGE. NEITHER MY FATHER NOR I WERE INJURED. WE CONTACTED THE LANDOWNER AND RPTED THE LNDG.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.