Ozaeros Aerobatics

CASA’s MOS on spinning says nought about aircraft inertia characteristics but you need to know about it if you want to understand the effect of controls during a spin.

Just note that they use military jets which have different inertia characteristics than the GA aeroplanes that we fly. Watch and listen carefully.

Video runs for about 20 minutes.

F-0776 Spinning Modern Aircraft British Aircraft Corp BAC Jet Provost Trainer, Hawker Hunter and Ha...

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Experience aerobatic excellence with this 1998 Extra 300L! A proven performer ready for its next owner.

✅ Low total airframe time (815 hrs)
✅ Lycoming AEIO-540 engine (approx. 330 hrs TSO. 12 year calendar expired for charter.)
✅ Classic, high-quality leather interior
✅ Located in New South Wales, Australia

Get in touch with Jay via the link below 👇

https://www.planesales.com.au/details/Listing/Single-Engine-Propeller/12896/1998-Extra-300L-Aircraft

Ozaeros Newsletter August 2026 -

Ozaeros Newsletter August 2026 Ed Ross and Stjepan Nikolic took Super Decathlon VH-UPG to the AACVC training camp on Sunday 19th July at Latrobe Valley. Ed is preparing for his first contest in Graduate Category in September. Stjepan rolled through the Sportsman Known.

The issue of Sport Aerobatics is out now and available at the pavilion at EAA Airventure! 🙌 Grab one while supplies lasts!

The July Newsletter!

Ozaeros Newsletter July 2026 We’re in the middle of winter however it is time that we started preparing for the two major aerobatic competitions if we are going to participate. In a recent email from Russell Banks, the AACVC President:

The 2027 Aerobatic Seminar was a great success. Thanks to the presenters and all those who attended. https://aerobaticsaustralia.net/seminars/2026-seminar/

What causes the Vertical Stabilizer Fittings to Fail on Cessna 150s and 152s?

What Causes the Vertical Stabilizer Fittings To Fail - McFarlane Aviation FAA-PMA parts for Cessna, Piper, Grumman, and Beechcraft aircraft. Products include cables, engine controls, steering rods, seat rails, engine controls, rudder pedals and many more airframe parts.

The thing about putting a 150 (or even 180) hp engine into a Cessna 150 is the increase in empty weight. I have heard that there is an STC to increase the Maximum Weight but I am not familiar with it. Regardless, the useful load and CG is critical. e.g. one local Cessna 152 will easily go outside the allowable CG range,

The dry weight of the Lycoming 150 hp engine is 298 lb compared to the that of the original Continental O-200 of 216 lb. 82 lb more!

One common mod is Aero upgrade LLC. STC SA1034SW which changes the engine and prop but leaves the maximum weight the same! Do the arithmetic.

"Former Cessna aerodynamicist and test pilot Bill Thompson was not crazy about the O-320 C-150 mod that put the battery box in the tailcone to balance out the heavier engine. After flying one he said it was "no longer a docile C-150" and cited a "noticeably flatter spin attitude" and "rather sluggish" spin recovery. ...
Higher polar moment of inertia. ...
Part of the O-320 STC requires a placard which states: "Intentional spins prohibited". ...
What about the Aerobat?"

Indeed, what about the Aerobat? RVAC had one for a very short while. One person on board and enough fuel to taxi to the runup bay is all it could take. They didn't do the arithmetic before they bought it.

I'm disappointed that this magazine article did not mention weights at all.

This 1971 Cessna 150K Is a Dual-Purpose, 150 HP ‘AircraftForSale’ Top Pick Upgraded Lycoming muscle, an included float kit, and an extensive maintenance history make this iconic trainer a rare land-and-sea adventurer.