T-one Hawk mini
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jcterrettaz (06-19-2022)
#29
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I had a Global Jet Club T-45 foamy. It crashed during maiden as I dropped the gears and banked left for a gear check prior to landing. I am not sure what caused the crash but one of my friends who was watching felt that I may have stalled it. I personally thought I had plenty of speed while making a gradual left turn.
Tone, would you please give us feedback regarding flight characteristics after your maiden flight?
Tone, would you please give us feedback regarding flight characteristics after your maiden flight?
The only problem I had is the cover for the landing gear. On my fourth flight I heard a flapping noise so I landed. I ended up tracing the issue to the mounted gear covers on the wings. It looks like the force of the wind in flight caused the covers to open some and both cracked at the screw point. They came pre-mounted with the gear and appear to be screwed and glued to the gear itself. Apparently my glue did not take and only the screws held the cover on and this was not enough to keep the wind out. I will reach out to Dirk and find out if painted replacements are available.
Last edited by Agrav8ed; 06-21-2022 at 11:45 AM.
#31
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Thanks,
Tone
Last edited by Agrav8ed; 06-21-2022 at 11:37 AM.
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So I finally had a chance to maiden my mini hawk today. I have to say. It flew extremely well and was a blast. My weight with tank empty and UAT full was 19.5lbs. I am using a Swiwin 80n for power and it performed extremely well. It has a pretty wide flight envelope and landed predictably. In flight, it was a bit more agile than I was expecting but by no means uncontrollable. It almost flew like a sport jet. With full flaps and dirty it decreased speed quickly and maintained stability for the landing. It impressed a number of turbine pilots at the field and I ended of answering alot of question about the model....
Did you use factory CG of 160 mm? If so, did you have to add Wight to the nose? I am using a 3,200 Life battery and 2 of 2,200 Lipos for flight controls. I put a K-102 in it which is the same weight as K-85 but it is tail heavy and looks like I need to add weight.
Last edited by N4S; 06-27-2022 at 11:53 AM.
#34
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Tone, thanks for great write up! I plan to maiden mine Thursday and your write up is very encouraging!
Did you use factory CG of 160 mm? If so, did you have to add Wight to the nose? I am using a 3,200 Life battery and 2 of 2,200 Lipos for flight controls. I put a K-102 in it which is the same weight as K-85 but it is tail heavy and looks like I need to add weight.
Did you use factory CG of 160 mm? If so, did you have to add Wight to the nose? I am using a 3,200 Life battery and 2 of 2,200 Lipos for flight controls. I put a K-102 in it which is the same weight as K-85 but it is tail heavy and looks like I need to add weight.
Thanks,
Tone
#35
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Tone
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Hi
I just made the maiden with my Mini Hawk with a K86 in it.
The CG was set to the mentioned 160mm and I must say that can‘t be right. Had nearly 2 crashes due to stall, making this setup hard to land with a decent speed.
To achieve the 160mm I already had to add 220gr in the nose and 2x 2s4500 lipo for rx and 1x 3s3000 lifepo for turbine.
Standing on the wheels with full or empty tank it feels tail heavy as at a certain point it does not rotate back to the front wheel. Also a lot of trim to the ailerons to the right was needed.
Have there been any changes in the geometry?
Did any of you change the CG during the season?
cheers
Ric
I just made the maiden with my Mini Hawk with a K86 in it.
The CG was set to the mentioned 160mm and I must say that can‘t be right. Had nearly 2 crashes due to stall, making this setup hard to land with a decent speed.
To achieve the 160mm I already had to add 220gr in the nose and 2x 2s4500 lipo for rx and 1x 3s3000 lifepo for turbine.
Standing on the wheels with full or empty tank it feels tail heavy as at a certain point it does not rotate back to the front wheel. Also a lot of trim to the ailerons to the right was needed.
Have there been any changes in the geometry?
Did any of you change the CG during the season?
cheers
Ric
#45
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Hi
I just made the maiden with my Mini Hawk with a K86 in it.
The CG was set to the mentioned 160mm and I must say that can‘t be right. Had nearly 2 crashes due to stall, making this setup hard to land with a decent speed.
To achieve the 160mm I already had to add 220gr in the nose and 2x 2s4500 lipo for rx and 1x 3s3000 lifepo for turbine.
Standing on the wheels with full or empty tank it feels tail heavy as at a certain point it does not rotate back to the front wheel. Also a lot of trim to the ailerons to the right was needed.
Have there been any changes in the geometry?
Did any of you change the CG during the season?
cheers
Ric
I just made the maiden with my Mini Hawk with a K86 in it.
The CG was set to the mentioned 160mm and I must say that can‘t be right. Had nearly 2 crashes due to stall, making this setup hard to land with a decent speed.
To achieve the 160mm I already had to add 220gr in the nose and 2x 2s4500 lipo for rx and 1x 3s3000 lifepo for turbine.
Standing on the wheels with full or empty tank it feels tail heavy as at a certain point it does not rotate back to the front wheel. Also a lot of trim to the ailerons to the right was needed.
Have there been any changes in the geometry?
Did any of you change the CG during the season?
cheers
Ric
thanks,
Tone
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HI Tone
thx.
This is odd.
My distances:
1. main to front wheel is 687mm.
2. Main to CG 22mm
If I would set it that way, the load on the front wheel would be arround 300gr, which is barely nothing and bellow 5% of the total weight.
Or am I missing something?
Ric
Ric
thx.
This is odd.
My distances:
1. main to front wheel is 687mm.
2. Main to CG 22mm
If I would set it that way, the load on the front wheel would be arround 300gr, which is barely nothing and bellow 5% of the total weight.
Or am I missing something?
Ric
Ric
#47
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Thanks,
Tone
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Hi guys.
Thinking of ordering one of these. What brand servos do you get with the PNP? If they're not a brand name wondering how they compare to MKS or Savox for quality, specifications and price. The PNP is an $895 option but that includes the lights and installation so just wondering how that compares to the nine servos required if you were to purchase them from MKS or Savox.
Thanks.
Thinking of ordering one of these. What brand servos do you get with the PNP? If they're not a brand name wondering how they compare to MKS or Savox for quality, specifications and price. The PNP is an $895 option but that includes the lights and installation so just wondering how that compares to the nine servos required if you were to purchase them from MKS or Savox.
Thanks.
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What do your numbers look like? Did you make sure that the jet was level when balancing? Did you check the mains to make sure they are fully extended? This are the numbers I used to obtain the factor cg. I had to add a some lead in the nose to make it work. My mini flies great. I moved the batties back a little after maiden but not much. I will say that on the ground sitting still, it seems a light on the nose. In the air it flies beautifully.
Thanks,
Tone
Thanks,
Tone
thanks for your support, Have setup the COG at 160mm an now it flyes great. But still the frond landing gear has very low load, but still able to control.
I used the Xicoy WLAN CG Meter, and a modified Digital CG Scale that I normaly use fro gliders. With this digital CG Scale the distance of CG from the leading edge is beeing displayed :-)
Cheers
Ric
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Hi guys.
Thinking of ordering one of these. What brand servos do you get with the PNP? If they're not a brand name wondering how they compare to MKS or Savox for quality, specifications and price. The PNP is an $895 option but that includes the lights and installation so just wondering how that compares to the nine servos required if you were to purchase them from MKS or Savox.
Thanks.
Thinking of ordering one of these. What brand servos do you get with the PNP? If they're not a brand name wondering how they compare to MKS or Savox for quality, specifications and price. The PNP is an $895 option but that includes the lights and installation so just wondering how that compares to the nine servos required if you were to purchase them from MKS or Savox.
Thanks.
I use KST servos. They fit pretty well.
1x KST BLS825 (Elev)
5x KST X15-1208 (Flaps, Rudder, Main Gear Door)
3x KST X10 (AIL, Front Gear Door)
MKS is surely a good choice too.
BR
Ric