advise for first 1/2a plane
#1
Senior Member
Thread Starter
My Feedback: (4)
Join Date: Nov 2004
Location: waterford,
CA
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
advise for first 1/2a plane
i went to a flying feild a while back and somebody had one of those little planes that thing would rocket around. probably 100 miles an hour. i would like to get one. i have no idea what kind of plane to get so please help me out. thanks alot
#3
Senior Member
My Feedback: (5)
Join Date: Apr 2003
Location: Brunswick,
GA
Posts: 4,867
Likes: 0
Received 0 Likes
on
0 Posts
RE: advise for first 1/2a plane
Get a TD, some 4.2x4 props and build a "Blink". You won't need control lines, but you will need good reflexes.
www.ulmer-rc.com
www.ulmer-rc.com
#4
Join Date: Oct 2002
Location: Chilliwack, BC, CANADA
Posts: 12,425
Likes: 0
Received 22 Likes
on
19 Posts
RE: advise for first 1/2a plane
Young pilot, you've got 39 posts listed. Have you flown an airplane before and if so then what sort of airplane? And how many flights do you have on it and how comfy are you at making the plane do what you want rather than letting it do what it wants? How often can you land it within 50 feet of yourself when you arrive with enough altitude.
#5
Senior Member
Thread Starter
My Feedback: (4)
Join Date: Nov 2004
Location: waterford,
CA
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
RE: advise for first 1/2a plane
i have the flying thing down. inverted harriors. harrier rolls, knife edge, waterfalls you name it i can do it. ive never flown anything going over 50 mph looks fun what type of motor do ya all recomend?
#7
Join Date: Oct 2002
Location: Chilliwack, BC, CANADA
Posts: 12,425
Likes: 0
Received 22 Likes
on
19 Posts
RE: advise for first 1/2a plane
ORIGINAL: youngpilot
i have the flying thing down. inverted harriors. harrier rolls, knife edge, waterfalls you name it i can do it. ive never flown anything going over 50 mph looks fun what type of motor do ya all recomend?
i have the flying thing down. inverted harriors. harrier rolls, knife edge, waterfalls you name it i can do it. ive never flown anything going over 50 mph looks fun what type of motor do ya all recomend?
Most 1/2A models are not usually all that fast with 40 to 60 mph being more or less a natural speed for a basic 049 to 061 turning a 6x3. But if you go for a sleeker model running a hotter engine with a smaller diameter and higher pitch then 80 to 100 is doable. But you gotta get one of the fancy engines and play with it to get the best performance.
For example a bit of quick figuring for prop pitch speeds.
3 inch pitch at 16K gives 45 mph
3 inch pitch at 20K gives 57 mph
4 inch pitch at 20K gives 75 mph
4 inch pitch at 27K gives 102 mph
But generally even a slippery model will have enough drag that you only ever see maybe 80 to 85% at best of this pitch speed. So figure you gotta turn a 4 inch pitch prop at 30K to get a peak at 100 mph.
It's doable with a sub 0.10 engine but it's not easy. I hate to push you away from enjoying the smaller side of engine flying but the mid size engines offer more options for reaching 100 mph more easily. Unless the idea is to keep the models smaller then you are stuck with 1/2A.
Also bear in mind that smaller models SEEM like they are fast but the smaller size that demands they be flown closer in to the pilot often makes them seem far faster than they are. It's quite possible that the model you saw was only doing 60 to 80 mph and that your models that you thought were doing 50 were actually only doing 30 to 40 mph except when in a dive where they could push up to 50'ish.
#8
Senior Member
My Feedback: (1)
RE: advise for first 1/2a plane
ORIGINAL: combatpigg
If you're already a good pilot, go to "kittingittogether", Larry Driskills' web site. His LITEHAWK plane is exactly what you need.
If you're already a good pilot, go to "kittingittogether", Larry Driskills' web site. His LITEHAWK plane is exactly what you need.
#9
Senior Member
My Feedback: (3)
RE: advise for first 1/2a plane
How about a good used TD .051[ for about $20 from an auction site] mounted to a scratch built Sheet Wing Racer? With a COX 5x3 prop at 25,000 rpm, you'll fullfill your need for speed and have a chance to get the plane sorted out at a manageable speed. Then switch to an APC 4.2x4 prop to shift it into over drive. Once you have had success with this set up, then it would be time to move up to the CYCLON .061 on basically the same model. Start all over again with the 5x3 prop, then switch to the 4 pitched prop once you are "at home" with the extra power.
#10
Senior Member
Thread Starter
My Feedback: (4)
Join Date: Nov 2004
Location: waterford,
CA
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
RE: advise for first 1/2a plane
Thanks for all you advise. i think i am going to check the auctions for a rtf plane so that when i get one im not guessing about how to make one. ill let you guys know what i find.
#12
Senior Member
Thread Starter
My Feedback: (4)
Join Date: Nov 2004
Location: waterford,
CA
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
RE: advise for first 1/2a plane
i love to build but i lack the space in my room. i have decided im not even going to get one of these planes anyway. i want to get a flight sim and i nead all the $$ i can get because i have to buy a compute4r too.