cross country planes
09-11-2016, 06:34 PM
#26
Moderator
I hope I didn't come across as rude either. I couldn't resist ribbing Ratshooter a bit when he was giving John a hard time. Both are great guys who have my respect.
09-11-2016, 07:45 PM
#28
Join Date: Dec 2010
Location: Burleson,
TX
Posts: 523
Likes: 0
Received 0 Likes
on
0 Posts
Hey Jester no problem. I hate when I don't get the spelling correct. I keep google on a short chain just checking the spelling of words. Trust me, I will not spell beginner wrong ever again.
I was at Thunderbird field today. I was hoping you would be there. I went as soon as the Cowboys lost. I flew with a guy named Andy. A really nice younger man. It was dead calm. I test flew my new Easy Sport 40. The engine is still breaking in so I just cruised around for one tank. Then the sun gave up the ghost.
I was at Thunderbird field today. I was hoping you would be there. I went as soon as the Cowboys lost. I flew with a guy named Andy. A really nice younger man. It was dead calm. I test flew my new Easy Sport 40. The engine is still breaking in so I just cruised around for one tank. Then the sun gave up the ghost.
09-12-2016, 04:13 PM
#29
Senior Member
Thread Starter
Join Date: Jun 2016
Posts: 114
Likes: 0
Received 0 Likes
on
0 Posts
Hi, guys how much glow fuel do you think I need to fly 30 miles? I'll be flying a sig kadet senior (3 channel) with a Thunder Tiger .42 gp engine
Last edited by MARK JR; 09-12-2016 at 04:18 PM.
09-12-2016, 10:34 PM
#33
Mark Jr, those are questions that would be very hard to answer. You're talking about an overloaded airplane with minimal power under unknown conditions. The way I see it:
1) Depends on "W" and the three "H"s. Wind direction and speed will impact your range as will the barometric pressure, humidity and temperature(AKA High/humid/hot). Any full sized aircraft pilot will tell you they don't really like to fly on days where the temperature is up over 80, humidity is high and with high barometric pressure
2) Speed is a ratio of thrust to load(weight and drag). Therefore, the prop diameter and pitch, engine RPM, aircraft weight and drag will all affect the planes top speed.
3) That really depends on what your aircraft is capable of attaining as far as groundspeed rather than airspeed. If you're flying into a headwind, obviously the groundspeed is going to be less than flying with a tail wind
4) Depends on all the above. How far you can fly one day could, very likely, be much greater one day than the next on the same fuel load. A second factor would be the ability of your engine to actually get the plane off the ground or to keep it airborne at less than full throttle
1) Depends on "W" and the three "H"s. Wind direction and speed will impact your range as will the barometric pressure, humidity and temperature(AKA High/humid/hot). Any full sized aircraft pilot will tell you they don't really like to fly on days where the temperature is up over 80, humidity is high and with high barometric pressure
2) Speed is a ratio of thrust to load(weight and drag). Therefore, the prop diameter and pitch, engine RPM, aircraft weight and drag will all affect the planes top speed.
3) That really depends on what your aircraft is capable of attaining as far as groundspeed rather than airspeed. If you're flying into a headwind, obviously the groundspeed is going to be less than flying with a tail wind
4) Depends on all the above. How far you can fly one day could, very likely, be much greater one day than the next on the same fuel load. A second factor would be the ability of your engine to actually get the plane off the ground or to keep it airborne at less than full throttle
Last edited by Hydro Junkie; 09-12-2016 at 10:36 PM.
09-13-2016, 04:39 AM
#34
'So Mark a better description of the type of road and route you had in mind would be needed since you do not even list what part of the world you are from.
John
09-13-2016, 06:56 AM
#35
My Feedback: (2)
Join Date: Jun 2004
Location: Sailing in the Eastern Caribbean
Posts: 4,047
Likes: 0
Received 1 Like
on
1 Post
I made some flights like this many years ago using medical saline bags stuffed into the wings feeding a chicken hopper style header tank. A servo attached to the needle is a worthy addition for really long flights.I am not sure what the current position is on using bag tanks, I know they are not allowed on jets anymore.
09-13-2016, 07:54 AM
#36
Senior Member
Thread Starter
Join Date: Jun 2016
Posts: 114
Likes: 0
Received 0 Likes
on
0 Posts
Hi John, I'm planing to fly from Greenfield ca to Chualar ca along hwy 101 north its mostly straight. The rc flying field is in Chualar. Do you think a quart of glow fuel would make it
09-13-2016, 12:00 PM
#39
My Feedback: (2)
Join Date: Jun 2004
Location: Sailing in the Eastern Caribbean
Posts: 4,047
Likes: 0
Received 1 Like
on
1 Post
Assuming a qt is 32 fluid ounces that should be fine.
Where are you planning to put the tank? Bear in mind that unless it is on or near the CG you will get a significant change in the CG as the fuel burns off. If you put the tank under the wing on a typical trainer you will need a pump.like the Perry VP 30.
As to the legal position in the USA I have no idea. I do know that some years ago there were several competitions for cross country sail planes and the pilots were in cars. I think they were in California but it was many years ago so I am not sure. It may differ state to state.
In the UK as long as you maintained eye contact with the model and stayed out of controlled airspace it was not a problem.
There is a 400 ft above ground rule that we stuck to when flying powered models but generally it was ignored when flying gliders.
Where are you planning to put the tank? Bear in mind that unless it is on or near the CG you will get a significant change in the CG as the fuel burns off. If you put the tank under the wing on a typical trainer you will need a pump.like the Perry VP 30.
As to the legal position in the USA I have no idea. I do know that some years ago there were several competitions for cross country sail planes and the pilots were in cars. I think they were in California but it was many years ago so I am not sure. It may differ state to state.
In the UK as long as you maintained eye contact with the model and stayed out of controlled airspace it was not a problem.
There is a 400 ft above ground rule that we stuck to when flying powered models but generally it was ignored when flying gliders.
09-14-2016, 12:56 PM
#40
Hey Mark lets taik about routes for just a minute. First off a simple thirty miles like I already posted is not that far of reach and its a simple fuel load with that engine for a senior cadet. One large tank in the nose is all that is needed If and this is a big if the route is appropriate.
I looked over this Greenfield - avular route a bit but that is difficult to do for some not there. You need to drive the route from both directions at least once.
You need to account for all underpasses. You need to account for each set of pwerlines that will need to be overflown and you need to realize the need to avoid flying through any portions of cities as well as anyplace you are likely experience stop and go traffic.
Now let me tell of some practical methods that have worked well here in northern AZ And no I cannot give you any info about California In fact well I was working with the Az fish&game who patrols the Colorado River for a fifty mile trip I only neeed to avoid some marked wildlife backwaters and they strongly suggested we remain on the Az side of the river at all time. That trip was a success and of course we stayed in Arizona's side the whole trip.
I have found for me that it is best to overfly powerline and have never experienced interference on 2.4. Underpass in some situations can be delt with however its best that you plan any trip with no underpasses.
There are three routes that we have done in the past here. There is a route here from our flying field in Kingman az eastward to Seligman AZ and the hiway between them is US Route 66 and the everything in between is Tribal land The highway is patrolled by tribal officers. For those original trips the even provided some escourt.
Just one last point tandem tank set up is the most practical set up Yes you will experience trim changes as the flight progresses but remember there is no fuel sloosing as the tanks them selves act as baffles. Not the land version of my olf pattern plane this is 72 ounces and in four tanks the first down in the nose and the rest across the entire top to all the way about about three inchs behind the trailing edge.
It works, is controllable and is reliable. In the case of the senior cadet there are two 64 ounce tanks on top of each other centered roughly on the CG and another conventional tank in the nose Both of these tandem systems work very reliably they feed from the fartest tank and they perform perfectly will with just muffler pressure there is absolutely no requirement for any kind of pump.
John
I looked over this Greenfield - avular route a bit but that is difficult to do for some not there. You need to drive the route from both directions at least once.
You need to account for all underpasses. You need to account for each set of pwerlines that will need to be overflown and you need to realize the need to avoid flying through any portions of cities as well as anyplace you are likely experience stop and go traffic.
Now let me tell of some practical methods that have worked well here in northern AZ And no I cannot give you any info about California In fact well I was working with the Az fish&game who patrols the Colorado River for a fifty mile trip I only neeed to avoid some marked wildlife backwaters and they strongly suggested we remain on the Az side of the river at all time. That trip was a success and of course we stayed in Arizona's side the whole trip.
I have found for me that it is best to overfly powerline and have never experienced interference on 2.4. Underpass in some situations can be delt with however its best that you plan any trip with no underpasses.
There are three routes that we have done in the past here. There is a route here from our flying field in Kingman az eastward to Seligman AZ and the hiway between them is US Route 66 and the everything in between is Tribal land The highway is patrolled by tribal officers. For those original trips the even provided some escourt.
Just one last point tandem tank set up is the most practical set up Yes you will experience trim changes as the flight progresses but remember there is no fuel sloosing as the tanks them selves act as baffles. Not the land version of my olf pattern plane this is 72 ounces and in four tanks the first down in the nose and the rest across the entire top to all the way about about three inchs behind the trailing edge.
It works, is controllable and is reliable. In the case of the senior cadet there are two 64 ounce tanks on top of each other centered roughly on the CG and another conventional tank in the nose Both of these tandem systems work very reliably they feed from the fartest tank and they perform perfectly will with just muffler pressure there is absolutely no requirement for any kind of pump.
John
09-16-2016, 02:14 PM
#43
Join Date: Jan 2002
Location: San José, Costa Rica
Posts: 1,130
Likes: 0
Received 0 Likes
on
0 Posts
The Spirit of Butt's Farm Crossed the Atlantic....
https://www.sciencenewsforstudents.o...flies-atlantic
http://www.barnardmicrosystems.com/U...rossing_2.html
So.. with a couple of hops theoretically the US land mass can be crossed...
Regards
Patrick
https://www.sciencenewsforstudents.o...flies-atlantic
http://www.barnardmicrosystems.com/U...rossing_2.html
So.. with a couple of hops theoretically the US land mass can be crossed...
Regards
Patrick
09-17-2016, 07:53 PM
#44
Join Date: Dec 2010
Location: Burleson,
TX
Posts: 523
Likes: 0
Received 0 Likes
on
0 Posts
Swampflier I had never heard of Maynard Hills crossing. That was cool. Here is another plane that made it across the pond. Powered by an Enya 4 stroke running on gas. Why Enya never made a big deal about their engine was a puzzlement to me.
https://en.wikipedia.org/wiki/AAI_Aerosonde
I didn't see listed what MH used for an engine except it was a 10cc. Any ideas?
I found this
[TABLE="class: wikitable"]
[TR]
[TD]O.S. Engines FS-61 0.61 cubic inch (10cc) four-stroke, CH Ignition CDI spark ignition system, carburetor from a "PET" O.S. 0.10 two-stroke engine[/TD]
[/TR]
[/TABLE]
Engine modifications
Smaller valves in engine, custom carburetor mounted remotely, triple fuel filtration down to 1 micron, pressurized fuel tank using crankcase pressure, custom power takeoff to run electronics
https://en.wikipedia.org/wiki/AAI_Aerosonde
I didn't see listed what MH used for an engine except it was a 10cc. Any ideas?
I found this
[TABLE="class: wikitable"]
[TR]
[TD]O.S. Engines FS-61 0.61 cubic inch (10cc) four-stroke, CH Ignition CDI spark ignition system, carburetor from a "PET" O.S. 0.10 two-stroke engine[/TD]
[/TR]
[/TABLE]
Engine modifications
Smaller valves in engine, custom carburetor mounted remotely, triple fuel filtration down to 1 micron, pressurized fuel tank using crankcase pressure, custom power takeoff to run electronics
Last edited by ratshooter; 09-17-2016 at 07:59 PM.
09-19-2016, 07:40 PM
#47
Why? They are not "cadets", they're "Kadets". Why would you knowingly change the name and incorrectly call it some else?
Last edited by Tom Nied; 09-19-2016 at 07:43 PM.
