V-Speeds

[flyguy]

Re: V-Speeds

I think you are correct that 80 is a more reasonable value for manuvering speed as at 100 that wing is going to pull a lot of G's before it quits. My thinking 100 is likely from the time I spent flying C150's.

Is there any reference information on line for calculating accelerated stall speeds and G's pulled, stuff like that? Would be interesting. I'll look.

Darryl

[Robert Lees]

Re: V-Speeds

I have always had 100 statute in my head as manuvering speed for the BC12D, is that correct?

Personally I use 80.

[astjp2]

Re: V-Speeds

There are no published speeds like manuvering, so you should not try and mark them, the only one is the VNE the rest are complied with by placards. Tim

[fearofpavement]

Re: V-Speeds

I have flown a pretty extensive variety of aircraft and have never known one to have the maneuvering speed marked on the airspeed indicator. I think one reason for this is that many V speeds are calculated for max gross weight and since maneuvering speed decreases as the weight decreases, safety margin would decrease with reduced weight rather than increase as with the other speeds typically indicated on the instrument. Although I have seen many aircraft with only one maneuvering speed posted. (and others have a few different speeds for different weights...)

[Peter Collin]

Re: V-Speeds

Thanks everyone.
I checked the TC for the max airspeeds for the BC12D-85 landplane. Climb or level flight is 105mph, dive or glide is 142mph, there is no mention of manuvering speed.
I'm sending my AI out to Keystone tomorrow for overhaul, new face with Taylorcraft logo and markings. Maybe I should do what Dan suggested and just put marks at max airspeeds.

Thanks for your help.

Peter

[flyguy]

Re: V-Speeds

Nice, but 29K is a little rich for a fun toy and I am now flying as a sport pilot since I picked up atrial fibrillation a couple of years ago. (Probably from running for 25 years in crappy air.) Wonder if any of these sellers would take Krugerands, LOL.
I just have a long history of drooling over the older and slightly upgraded versions ever since I worked, in highschool, for a airframe guy who had one.

On topic: I have always had 100 statute in my head as manuvering speed for the BC12D, is that correct?

[Dan Michaels]

Re: V-Speeds

Hmmmmmmm..... just happen to know where there is one......
John

email me off line [email protected]

Dan

[N96337]

Re: V-Speeds

I am always looking for the right triple tail project, I have faith it will show up when I have the least amount of money avaliable.

Dan

Hmmmmmmm..... just happen to know where there is one......
John

[Dan Michaels]

Re: V-Speeds

Yum, 66 260. One of my very favorites. Makes my mouth water. Weird thing, I have never been in a tripple tail, ever, I just love the design.
DC

I am picking one up in TX in two weeks that only has 1300 TT it can be had for $29,000.00

Dan

[flyguy]

Re: V-Speeds

Yum, 66 260. One of my very favorites. Makes my mouth water. Weird thing, I have never been in a tripple tail, ever, I just love the design.
DC

[Dan Michaels]

Re: V-Speeds

Peter, go to the type certificate for your airplane...all the necessary speeds that are to be marked on the instrument will be listed there.
Dan... sounds like you have a Cruisair? Me too... '46 14-13 no mods. (but it's all apart right now)
John

I have a couple of 66 Bellanca 260 single tail's. One is getting a facelift. I am always looking for the right triple tail project, I have faith it will show up when I have the least amount of money avaliable.

Dan

[N96337]

Re: V-Speeds

Peter, go to the type certificate for your airplane...all the necessary speeds that are to be marked on the instrument will be listed there.
Dan... sounds like you have a Cruisair? Me too... '46 14-13 no mods. (but it's all apart right now)
John

[Dan Michaels]

Re: V-Speeds

Dan.
That sounds interesting, it would be pretty cool to have the Taylorcraft logo on it. I looked at the Legend Cub, it has a nice plain AI with the word Legend in script on the face. It probably will be cheaper to go that route. It's $95.00 extra to get the airspeed markings on a new one.
By the way what is the yellow range for the Taylorcraft?

Thanks
Peter

This will be my first plane without flaps so I may be way off base.

I think you want a line or three lines instead of arcs. You need a never exceed speed line a max design manuvering speed line and a stall speed line.

If your POH gives a green arc (operating range) you could have that. Mostly you need to know the never exceed speed (For dives) and the manuvering speed (turbulence) This is not a range but a stay under speed hence the line. All lines are known speeds. Arcs are operating ranges, caution, normal and flap/gear ranges. My Bellanca has the arcs but does not have the manuvering speed line you have to know it or it is placarded on the plane somewhere. I would rather have this line on the instrument, Think about it how often are you in the yellow range? On the Bellanca it is 190 to 226, I cruise at 150. My design manuvering speed is 142 so you can see what is more important. In order to get to the yellow arc I need to be full throttle close to sea level in a shallow dive or coming from 10,000 feet or so full throttle. It just does not happen that often.

Dan

[Joel Severinghaus]

Re: V-Speeds

Peter,

When I had some instruments re-conditioned by Keystone Instruments in Pennsylvania (http://www.keystoneinstruments.com/index.html), they mentioned that they could also silkscreen the Taylorcraft logo onto instrument faces.

Wag-Aero sells a $4.75 set of colored arc decals you can stick on the glass of your airspeed indicator (http://store.wagaero.com/product_inf...ducts_id=13359), but I agree that if you're going to have arcs, they'd look spiffier painted on the faceplate.

My airspeed indicator has only a red line painted on the glass at Vne 140 mph.

[Peter Collin]

Re: V-Speeds

Dan.
That sounds interesting, it would be pretty cool to have the Taylorcraft logo on it. I looked at the Legend Cub, it has a nice plain AI with the word Legend in script on the face. It probably will be cheaper to go that route. It's $95.00 extra to get the airspeed markings on a new one.
By the way what is the yellow range for the Taylorcraft?

Thanks
Peter