I see skymaster website 240 mph phantom. Fast very but is this at ama field in usa. I fly private ariport, i go 240 maybe, but is phantom at private airpot to. j petrov

I live in Texas, what airport do you fly at? I'd like to come see your phantom, I don't believe for a second it will do 240 MPH.

Welcome to RCU and I will apoligize after you show me how fast it is!

No what hes trying to say in engrish is the skymaster web site is showing a guy featuring a F-4 that claims to go 224 straight and level and thinks it could do 240. I saw the video and the dude flying the jet almost crashed into the camera man. LOL funny stuff. He was barely able to land it.

http://colorado-rc.com/video/f4.mpg

I love the still pic of the guy running away with the video camera I don't think it's moving nearly as fast as they think....

Hmmm----And this guy has a waiver????----Someone needs to teach this guy how to slow a jet down and use the throttle to control rate of descent....

Years ago when John Redman was testing out the new JetCat P-200 in his Kingcat, he had the GPS unit in it, and we saw a high recorded speed of 246 mph. Big airplanes are VERY deceptive in their speed.

In regards to that video.. If that were me, I'm not sure I'd want the fact that I can't fly documented and posted up on the internet for all to see.

GPS logging is not as accurate as some may think. At the rates of speeds we're flying at in addition to the erratic movements and orientation changes, often the GPS unit will not update quick enough or it may lose satellites and increase the error in position. That can turn into some strange readings which become artificially high or low. Looking at an Eagle Tree unit proves it pretty quickly when you correlate GPS velocity and airspeed from the pitot tube on a day with low wind. In a 3D plot of coordinates its also easy to see when the GPS loses it, as it starts to straight line throughout the flight path a lot, artificially cutting or elongating corners.

I'm pretty convinced that airspeed measurement by pitot tube is the best way to measure velocity, but its not perfect either as it does become influenced by air density. GPS is only really useful in my opinion if you can log air speed in parallel to verify the data.

That being said, I'd love to have seen a P-200 in a KingCat!!!

Kelly

I cannot view the video, anyone else got a problem?

GrayUK

It dowloaded OK for me. I use Firefox and Rclicked for "copy location" and then used Reget (magicdownloadaccelorator should be OK as well) and pasted the location to activate the download.


I liked the music at the beginning and thought the quality was pretty good. I thought chasing the photographer and the 1st landing was a bit "iffy"

Henry.

Having flown a phantom for about 8 years now I doubt very seriously that you could get 240 out of it. Even with a really big engine you have a very draggy airframe.

Oh come on Dave, you are jst jealous because yours is the slowest one in the fleet!!!!!

The flying site (Chatfield State Park near Denver) is a mile high - the laws of physics come to play big time: The air is thin and lots of speed is needed to generate lift. It gets even more of a challenge on a hot summer day - the video was shot in March. The F-4 is a draggy jet under the best of conditions.

Man! What a bunch of "glass half full" guys! hehehheh.
Don

On a jet the approach is supposed to be with the nose very slightly upwards...if its pointing very severely downward you are too fast. (Or you have passed the point of becoming too slow. In that case start start looking for the extinguisher...)

Baaah! What a girly jet! My Super Bee powered Tango goes 250...even faster if I hook up the NOS!

Sissies...

B

I flew a P200 Powered Lightning this past weekend. Now that was one get up and go jet for sure!

no sh^t - thanks for pointing out the obvious

This video was posted before by the owner I believe a few months back

Am I the only one who thinks that admitting, in writing, to flying your jet in excess of the 200mph AMA restriction is uhh, what's the word, STOOPID? Awfully silly way to get your waiver yanked!

David Searles

maybe he meant 240 KMph

Fastest Phantom I have seen has been Tim Redelman's with the Titan.....almost kept up with my Hotspot with P-120 at Sullivan couple of years ago.....on the speed gun and JetCat pitot, my HS was good for about 200-205 on the level .....

Judging by the appearance in the video, methinks Colorado just got his mph and kph mixed up......

It has almost got to be true, I mean if a Regal Eagle will take the gun at 207mph anything is possible. [sm=lol.gif]

Quote from Skymasters website: <<have apito tube on the F-4 with the p-240 in it>>

What exactly is a P-240??

V..

It's the new super secret afterburning motor with double lifetime warranty.

Way to go Skymaster, just let the whole cat right out of the bag why don't you.

Hi Ronnie;

that is what I ment KMPH. I did not look at the ground unit for that at that time?

Sorry guys a lot of responce for nothing!

Eggs