IO 550s, GTN 750, actively flying. Southern California. Engines are high time. If interested let me know. 160k.

That’s it?

I think that’s enough to let anyone that is actively looking for a 310Q that one is for sale and the price. If they are more than tire kickers they will reach out and start a conversation with me via email or message. I assume that’s what you mean,… I hate those super long adds that list every feature and then never tell you a price.

Airframe and engine time would be helpful, at the very least.

I see external cowl flaps….is this a turbo 310 or are the 550’s normally aspirated?

Less than 4000 total time on the airframe, but right at it…this was a Turbo 310Q, but the Colemill STC, removed those and replaced with the 300 hp 550As. Left engine is about 1600 hrs right is about 1400. If someone is really interested they can email and I will get the exact data from the logs.

Panel.

Empty weight?

Gross weight?

Does removing the turbo knock you back to the normally aspirated gross or do you keep the higher turbo gross?

Total fuel gallons?

Mike C.

Empty weight? 3292, with all 6 seats in.

Gross weight? 5500

Does removing the turbo knock you back to the normally aspirated gross or do you keep the higher turbo gross? No you have the full 300+ hp at ground level, vs the 285 from the stock turbo version.

Total fuel gallons? 163, 50 in each main and 31.5 in each aux.

Empty weight? 3292, with all 6 seats in.

Gross weight? 5500

Does removing the turbo knock you back to the normally aspirated gross or do you keep the higher turbo gross? No you have the full 300+ hp at ground level, vs the 285 from the stock turbo version.

Total fuel gallons? 163, 50 in each main and 31.5 in each aux.

If that's not a typo, I strongly recommend this plane gets weighed so you fly it with a known good weight and CG.

My prediction is 3750 lbs empty.

Mike C.

Can’t argue with because I don’t have the actual STC docs with me. This picture gives you a pretty good idea. The 310 is not as sensitive to weight and CH as some airframes.

If that's not a typo, I strongly recommend this plane gets weighed so you fly it with a known good weight and CG.

My prediction is 3750 lbs empty.

Mike C.

From an actual weighing?

That is actually pretty light for this vintage and engine combination.


I don't quite understand your numbers.

5600 lbs gross minus 3603 lbs empty is 1997 lbs useful. What am I missing?

Assuming 1997 lbs useful load, that's 1019 lbs full fuel, which is pretty nice, more than I would reasonable expect.

I thought the T310Q was 5500 lbs gross, not 5600 lbs. Where does the 100 lbs extra gross weight come from?

Mike C.

That’s the Colemill STC, adding the 300 hp NA engines. 5500 gross weight not 5600. You are correct, I didn’t look close enough at the number, but after taking pic can see clearly it’s a smudge on this paper and 55 is the number. I never load it up that much. But one could!