Aces High Bulletin Board

General Forums => Aircraft and Vehicles => Topic started by: Randy1 on June 23, 2015, 12:10:09 PM

Title: Why 2950 RPMs on the P-38?
Post by: Randy1 on June 23, 2015, 12:10:09 PM: (http://2.bp.blogspot.com/-TTZpQwKKqpc/VYmSIPMhreI/AAAAAAAACg8/kCxe1UNj-xs/s1600/RPM.jpg)

Used keyboard for full power(shift +).

Why not the full 3000 rated RPMs?
Title: Re: Why 2950 RPMs on the P-38?
Post by: FLS on June 23, 2015, 01:13:21 PM: The point of the needle isn't set to center. In this example the leading edge of the needle indicates the RPM. It's just a graphic, it doesn't affect performance.
Title: Re: Why 2950 RPMs on the P-38?
Post by: Randy1 on June 23, 2015, 09:23:24 PM: Quote from: FLS on June 23, 2015, 01:13:21 PM
The point of the needle isn't set to center. In this example the leading edge of the needle indicates the RPM. It's just a graphic, it doesn't affect performance.

I find it hard to believe HTC uses the leading edge as the pointer. Very bizarre.
Title: Re: Why 2950 RPMs on the P-38?
Post by: FLS on June 23, 2015, 10:33:21 PM: Quote from: Randy1 on June 23, 2015, 09:23:24 PM
I find it hard to believe HTC uses the leading edge as the pointer. Very bizarre.

Can you believe that it was an unintentional error?
Title: Re: Why 2950 RPMs on the P-38?
Post by: JOACH1M on June 23, 2015, 10:40:11 PM: Please for the love of God don't say "rpms" rotation per minute. It's not plural as it's not multiple minutes. It's only one. :)

My inner technician is coming out.
Title: Re: Why 2950 RPMs on the P-38?
Post by: bozon on June 24, 2015, 12:36:32 AM: Quote from: JOACH1M on June 23, 2015, 10:40:11 PM
Please for the love of God don't say "rpms" rotation per minute. It's not plural as it's not multiple minutes. It's only one. :)

My inner technician is coming out.
2 engines, two gauges, each with its oown RPM = RPMs.

My inner smartass is coming out.
Title: Re: Why 2950 RPMs on the P-38?
Post by: JOACH1M on June 24, 2015, 06:13:15 AM: Quote from: bozon on June 24, 2015, 12:36:32 AM
2 engines, two gauges, each with its oown RPM = RPMs.

My inner smartass is coming out.
but it's not rotations per minutes. Rotations per minute :)

Doesn't matter how many engines.
Title: Re: Why 2950 RPMs on the P-38?
Post by: Randy1 on June 24, 2015, 06:40:01 AM: Quote from: JOACH1M on June 23, 2015, 10:40:11 PM
Please for the love of God don't say "rpms" rotation per minute. It's not plural as it's not multiple minutes. It's only one. :)

My inner technician is coming out.

'In this case it should have been RPM's albeit grammatically poor at best. Thanks for adding to the thread.
Title: Re: Why 2950 RPMs on the P-38?
Post by: JOACH1M on June 24, 2015, 07:15:34 AM: Quote from: Randy1 on June 24, 2015, 06:40:01 AM
'In this case it should have been RPM's albeit grammatically poor at best. Thanks for adding to the thread.
:)
Title: Re: Why 2950 RPMs on the P-38?
Post by: Volron on June 24, 2015, 09:09:15 PM: Quote from: JOACH1M on June 23, 2015, 10:40:11 PM
Please for the love of God don't say "rpms" rotation per minute. It's not plural as it's not multiple minutes. It's only one. :)

My inner technician is coming out.

rpms

:devil
Title: Re: Why 2950 RPMs on the P-38?
Post by: Bino on June 24, 2015, 10:09:05 PM: Rs Per M.

There! :devil
Title: Re: Why 2950 RPMs on the P-38?
Post by: pembquist on June 24, 2015, 11:30:33 PM: have you considered that its because of R's PMS?
Title: Re: Why 2950 RPMs on the P-38?
Post by: bozon on June 25, 2015, 01:11:24 AM: Quote from: pembquist on June 24, 2015, 11:30:33 PM
have you considered that its because of R's PMS?
PMS is something entirely different even though it is cyclic as well.
Title: Re: Why 2950 RPMs on the P-38?
Post by: Widewing on June 25, 2015, 09:52:44 AM: Quote from: bozon on June 25, 2015, 01:11:24 AM
PMS is something entirely different even though it is cyclic as well.

You boys must know why they call it PMS.....

The Department of Agriculture had already requisitioned Mad Cow Disease.....
Title: Re: Why 2950 RPMs on the P-38?
Post by: Wmaker on June 25, 2015, 04:22:55 PM: Quote from: Widewing on June 25, 2015, 09:52:44 AM
You boys must know why they call it PMS.....

The Department of Agriculture had already requisitioned Mad Cow Disease.....

Now *that* caught me off guard! :rofl

Glad I had *just* finished my drink and put the glass down!
Title: Re: Why 2950 RPMs on the P-38?
Post by: bustr on June 25, 2015, 05:12:31 PM: I thought they tried to get PMS changed to BPD so they could issue Prozac and make everyone feel good.
Title: Re: Why 2950 RPMs on the P-38?
Post by: USCH on June 27, 2015, 09:45:22 PM: Rspm. My god now we can all talk about rpm's... Why? Because it is rpm's... Why is it rpm's? Because we are talking about revolutions per min. Or otherwise known by every person who has ever worked on a motor ever in his life as RPM's. Take the silver spoon out your mouth and place it.... Well, lets just see what you use it for.. Next you'll be redefining how we use the word TRM's..
Title: Re: Why 2950 RPMs on the P-38?
Post by: Brooke on July 03, 2015, 02:12:52 AM: You are all wrong. It is "RPMses".