Yak 11 Restoration

[srpatterson]

Mr. Patterson,

Could we please get an update on the status of Bob Chinnery's stunning Yak-11 restoration. Thanks.

Carl

All major systems are now installed and functional. The air bottles were charged yesterday, allowing for gear and flap retractions on the jacks. All went very well. With the gear retracted the gear doors were attached, and they're really nice and flush. Today was spent bleeding the brake lines (wheels and brakes are from a Cessna 421).

The prop will soon be attached, then a weight and balance can be completed. Should begin engine runs in a week or so.

I'll post some more photos after we get the prop on.

Steve

[T6pilot]

Mr. Patterson,

Thank you kindly for the update. Posting of additional photos, when available, would be greatly appreciated. Sounds like work is progressing along well. Having just finished the annual on my T-6 I can appreciate the time and effort involved. Please pass along my best wishes for continued success to Mr. Chinnery.

Carl

P.S. Don't forget to pre-oil the dickens out of the engine.

[srpatterson]

The Yak-11 now has an electric pre-oil pump installed, as do all the warbirds I fly (including the T-6). You just can't pre-oil too much.

This is a zero time 1830-75, and the engine shop sent detailed instructions for the first start.

Steve

[airnutz]

Thank you Mr. P...you anticipated my question about pre-oilers. Looking
forward to more great-Yak 11 photo updates!

[srpatterson]

Here are some photos from today. Bob decided to change out the electric air pump that was installed, in favor of one that has more volume/less pressure. Should only take a day, and we still plan on hanging the prop this week.

Getting very close.





Here's some of the Sea Fury...which is also very close.

[Robbo]

I think you're going to have some fun in this bird, Steve.

Rob

[T6pilot]

Mr. Patterson,

Could we please get another update on the status of Bob Chinnery's beautiful Yak-11 restoration. Current photos would be greatly appreciated. Thanks very much.

Carl

[srpatterson]

The Yak is very close to flying, as all systems are complete and ground runs are now taking place. The engine is running well and all that is left is to finish the FAA paperwork before a first flight.

I'll try and post some photos next week...

[T6pilot]

Mr. Patterson,

Thank you kindly for the reply and update. Looking forward to latest photos of the airplane. Best wishes on completion of FAA paperwork and test flight. Should go like a rocket!

Carl

[Stieglitz]

A great report about a very nice project. Good luck with this Yak Steve. Please send us an update if the yak has flown (maybe with some more nice pics! )

Greets,

Stieglitz

[vanguard]

I was once told that the -75 was a desirable engine in the 1830 family. But I cant remember why. Is there a reson the owner picked this dash # or was it just the one he got. I dont think its the highest HP in the family, but most HP isnt always the most desirable with round engines. MOST HP= most likely to blow up. Thats OK in multi engines. But a single engine YAK dosnt sound fun with a failure.

[T6pilot]

Mr. Patterson,

Congratulations on your successful completion of the Pylon Racing School at Reno last weekend. I would appreciate an update on the status of Mr. Chinnery's Yak-11 project and recent photos when available. Thanks.

Carl

[srpatterson]

The Yak is ready to go, and Bob Chinnery is now in contact with a DAR to get the paperwork finished up. Once that is in place we will schedule the first flight. I haven't taken any pictures lately, but I'll try and get some up.

Why did Bob choose the 1830-75 engine? Because Steve Hinton told him to.

Thanks Carl for the nice comment concerning PRS. Looks like my September just got a little busier.

[warbird51]

The 1830-75 has better bearings than the 1830-92/94 We used to race a Yak-11 with a 1830-92. Our crew chief said that the -92 has roller bearings and the longevity goes down if you try to turn the rpm up. If we had to replace the engine, we would have looked for a -75. That would have given us another 200 rpm over the -92.

[L. Thompson]

Has anyone seen (in say the last 5-7 years) the Yak causing all of the stir at aafo.com in the last couple of days? If as radically modified as recently described it isn't much (10%?)a Yak anymore but it would be great to see a photo or a first hand description.

Any Arkansas warbird snoopers reading this?