Cessna 340A

[lr23sic]

Does anybody have the flying profiles for a Cessna 340? IE Power settings for ILS and Fuel burns for flight planning. We have a 340a and are putting on our 135 ticket and need to find out as much info as possible. I have been flying Jets and all those levers in the 340 scare me ... Thanks ahead for any input..

Tom

PS any web sites are good for the 340???

 

[100LL... Again!]

Can't help with exact power settings,
but here's the speed profile:

Vectors to final: 150ish KTS

Leave the props at 2300 rpm and mixtures leaned unless you go around.

Flaps 15 when 1-3 NM from FAF depending on personal tastes or phases of the moon if superstitious.

Gear down just prior to the FAF, fly at 120 KTS.

Don't bother wilth flaps 35 unless you really think it will help. Helps a little on short runways.

The more levers, the better a pilot you probably are, right?

 

[Rvrrat]

Inspector Gadget

The more levers, the better a pilot you probably are, right?

Levers, switches, buttons, bells & whistles....

Gimme Gadgets!

Go go Gadget Arms!

 

[lr23sic]

Thanks for the Info. What did you normally use for Cruise power settings ? around 2300 rpm or 2400?

Tom

 

[100LL... Again!]

2300 rpm sounds good for cruise. As far as power settings go, it's been too long since I flew it, and I didn't get more than a handful of hours in it. Just kinda remember the speeds. Sorry.

 

[310]

My mechanic is a pilot also- used to fly a 340 for a company and maintain it- I remember his saying that you can't be a throttle jockey- (shock cooling) on a 340. gradual power changes are needed- If you need more specific info pm me- I'll put you guys in touch with one another.

 

[Rvrrat]

It's all about CHTs

- I remember his saying that you can't be a throttle jockey- (shock cooling) on a 340. gradual power changes are needed-

Planning ahead and knowing how to control temps with mixture.

Deakin has already written about it Here

 

[lr23sic]

Rvrrat, Thanks for the link. LOTS of great info there..

Thank You

Tom

 

[conquest]

c340

100ll,
is right. but do you have the 285hp or the ram 6or 7 conversion? cruise 23" 23-2400 rpm. on decent every 1000' reduce power 1-2" mp. do you have the fcu (fuel control unit)? IF so fcu will adjust the fuel in a climb & desent. the 340 is the same as the older 414 except the 340 is liter and smaller. the ram conversion plans is a kick but plan. fuel burn is about 34/hr cruise 50 climb.

 

[340drvr]

Here's how we run ours:
Takeoff, props forward 2700 max, mix forward, 35-36"
Climb, 31.5" props 2500 (top of green), mixtures rich except to tweak flows, 120 KIAS for a good cruise climb.
Cruise, 28", 2350 rpm, fuel flow 18-19gph each side, around 140 KIAS
Power reductions, 1"/minute, this is probably very conservative.
ILS and visual approach, 22", props left at cruise, mixtures at cruise unless go-around. Speed about 120 KIAS, 100 or so over the numbers (ours has VG's).
Flight plans for fuel burn at 40 gph and 185 true work pretty close for most flights.
You're right, the levers keep you busy, at least there's no carb heats! And, get ready, those Conti's are a bitch to start hot after a quick stop. Hope this helps.

 

[lr23sic]

Thanks 340Dvr, that is awesome Info to know.. Thank you much.. Now a big one for ya, when you are doing simulated engine failures what did you use for a zero thrust setting or how were you trained in it? Thanks again..


Tom...

PS Anybody have a 340 training manual that is better than the Flight manual that they want to part with or make me a copy for a small fee????

 

[340drvr]

The zero-thrust settings are from a chart with different settings for pressure altitudes and airspeeds. Examples: 10,000PA, ISA temp, props at full fwd, use MP to select rpm, 80 KIAS, 1650rpm; 90kts, 1850; 100kts, 2020; 110kts, 2220rpm.
Flight Safety's twin Cessna course covers both 300- and 400- series, the manual is pretty good, but, I don't have one. Maybe somebody else out there can get you a copy.
Our vortex generator STCs up the gross weight to 6290 from 5990, and change V-speeds a little bit. Empty weight is about 4500-4600, full fuel is 978# without wing locker tanks (extra 20 gals per side), so you don't get a whole lot of useful, but the vg's help.
Oh yeah, those fuel burn numbers are for mid-teen altitudes, 12,000 to FL180 for an average.
(Where are you guys located, and are you hiring?)

 

[414Flyer]

I flew the 340A for a season at WMI (weather mod) and did most of my fire work (recon and air attack) in one too last summer.

I think it is a great flying airplane and really easy to fly. Previously mentioned power setting are pretty close to how I flew them. 120 is a good climb speed, maybe 130 if it is hot outside, but I never really had any problem with cooling in the 340.

Around 31, and 2450 was generally where I climbed, and 28 is a good cruise setting.

Gear speeds are lower than the 414/421, so plan accordingly. 146 I believe, and 160 for initial flaps. If you wanted to, you could probably leave it at 25" and slow it down with gear and flaps on the approach.

No blowdown bottle, you have a pump next to the seat..

Fuel burn, 35 gallons is about what to expect in cruise. A little less or a little more depending on power setting and leaning.

 

[starvingcfi]

35 a side at 140 kias?

 

[340drvr]

I'm thinking 414 Flyer meant 35gph total (both sides).

 

[starvingcfi]

ahh. just misread the post. i could've sworn he said 35/side. i picked a hell of a week to stop doing crank.

 

[414Flyer]

Yeah dude, lay of the crack!

Just kidding, you were right, I did originally have 35 a side. I meant 35