46
Nice one Fred!
That will look very good in the air.
That will look very good in the air.
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47
Scale / Re: 1/4 scale Grunau baby
« on: February 20, 2018, 19:27:26 PM »
Some more progress has been made, Now almost ready for flight. Radio installed and controls setup, Just to make up the struts and check incidence and of course a final check on the CG I am not going to make the same mistake this time round.
All up weight should be 4.3 Kg if all balances as expected.
Hopefully we will get the weather at the March event to have the maiden flight.
All up weight should be 4.3 Kg if all balances as expected.
Hopefully we will get the weather at the March event to have the maiden flight.
48
God Fred you must have grate patience, Sounds far more boring than having to write 500 lines as a punishment when back in school.
"Joe must pay more attention in class" or perhaps worse. Might be easier to write 50 lines saying I must not push to hard on the wheel and then use it gently.
Keep up the good work it does make a huge difference to the model.
"Joe must pay more attention in class" or perhaps worse. Might be easier to write 50 lines saying I must not push to hard on the wheel and then use it gently.
Keep up the good work it does make a huge difference to the model.
50
Scale / Re: 1/4 scale Grunau baby
« on: February 06, 2018, 22:51:58 PM »
Hi Fred,
Thanks for that info Fred, I took the photo during a short break in the weather when I assembled to check all was lining up correctly. Will have to do some tiding up in the work shop / shed to assemble and check incidence angles or wait for better weather and rig outside once more
I have covered the wing since photo was taken and used Diacov doing it the same way you did and only covering the open areas, also used your tip and stained the capping strips on the ribs and trailing edges prior to covering it does show up the structure quite well.
Still some more work to complete on the fuss and have to make the struts as yet but coming together nicely.
Thanks for that info Fred, I took the photo during a short break in the weather when I assembled to check all was lining up correctly. Will have to do some tiding up in the work shop / shed to assemble and check incidence angles or wait for better weather and rig outside once more
I have covered the wing since photo was taken and used Diacov doing it the same way you did and only covering the open areas, also used your tip and stained the capping strips on the ribs and trailing edges prior to covering it does show up the structure quite well.
Still some more work to complete on the fuss and have to make the struts as yet but coming together nicely.
51
Scale / 1/4 scale Grunau baby
« on: February 06, 2018, 19:51:19 PM »
Hi All,
A new baby has arrived, a little premature but should be developed enough for March fly in. I have copied the finish of the previous one I owned but did not sheet the wing with ply and chose to just stain the balsa. Fuss is covered with 1/64 and 1/32 ply which is also stained.
Thanks to Fred in Island Models for donating the partially built kit, following me having written off my previous one on my first attempt to fly it.
There was very light lift and with a rearward c/g and the model was struggling to stay up ( that's what I tell myself ) unfortunately it came back to earth out of sight into the side of the slope and was badly damaged.
Looking forward to getting back to flying and to see all the new toys that we have produced over the winter months.
Joe
A new baby has arrived, a little premature but should be developed enough for March fly in. I have copied the finish of the previous one I owned but did not sheet the wing with ply and chose to just stain the balsa. Fuss is covered with 1/64 and 1/32 ply which is also stained.
Thanks to Fred in Island Models for donating the partially built kit, following me having written off my previous one on my first attempt to fly it.
There was very light lift and with a rearward c/g and the model was struggling to stay up ( that's what I tell myself ) unfortunately it came back to earth out of sight into the side of the slope and was badly damaged.
Looking forward to getting back to flying and to see all the new toys that we have produced over the winter months.
Joe
52
Events / Re: 2017 ISR events dates
« on: June 09, 2017, 00:20:13 AM »
Hi Guys
Will hopefully make it down on Saturday anyone staying overnight and making a weekend of it.
Joe
Will hopefully make it down on Saturday anyone staying overnight and making a weekend of it.
Joe
53
Scale / Re: Annother Islandmodels 1/3 Scale Ka8b build log
« on: March 14, 2017, 01:35:30 AM »
Ooop's
Forgot to load attachments
Forgot to load attachments
54
Scale / Re: Annother Islandmodels 1/3 Scale Ka8b build log
« on: March 14, 2017, 00:43:51 AM »
Hi All
Thanks for the positive and encouraging comments, I have attached a couple more photos taken last Saturday on Mt Leinster unfortunately practically no wind so first flight had to be postponed.
On Sunday there was 20 - 25 mph wind and I eventually built up the courage to assemble the model and launch. It was a heart thumping affair launching 18 months of work into the air in these winds but thankfully I need not have been concerned, the model zoomed slightly on launch but with a couple of clicks of down trim it was away from the lip of the slope and soring slowly and gracefully aloft. I flew the model for about 15 - 20 minutes getting used to the feel of the controls and checking the operation of the airbrakes. In the strong lift this glider just wanted to keep climbing I tried the airbrakes and they slowed the glider down and it slowly started to loose height there was no trim change with the brakes deployed and when retracted the model just picked up normal cruising speed and started to climb again.
It took me 4 -5 attempts to eventually get the model on the ground as the approach was along the top of the slope before finally turning into wind to land. There was little room to fly down wind without flying over the road or wooded area behind the landing zone and I was not comfortable flying the model low and close to either on my first flight with her. The model was very stable throughout the flight and despite being landed with too much airspeed and bouncing about 3 times it survived and I decided that I would settle for that one successful flight on the day. Hopefully someone will post some photos of her soon.
I am looking forward to getting it into the air again soon and having many more enjoyable flights.
Thanks Fred for producing an easily built model that is nice and stable, easy to fly and is also reasonably priced.
Thanks for the positive and encouraging comments, I have attached a couple more photos taken last Saturday on Mt Leinster unfortunately practically no wind so first flight had to be postponed.
On Sunday there was 20 - 25 mph wind and I eventually built up the courage to assemble the model and launch. It was a heart thumping affair launching 18 months of work into the air in these winds but thankfully I need not have been concerned, the model zoomed slightly on launch but with a couple of clicks of down trim it was away from the lip of the slope and soring slowly and gracefully aloft. I flew the model for about 15 - 20 minutes getting used to the feel of the controls and checking the operation of the airbrakes. In the strong lift this glider just wanted to keep climbing I tried the airbrakes and they slowed the glider down and it slowly started to loose height there was no trim change with the brakes deployed and when retracted the model just picked up normal cruising speed and started to climb again.
It took me 4 -5 attempts to eventually get the model on the ground as the approach was along the top of the slope before finally turning into wind to land. There was little room to fly down wind without flying over the road or wooded area behind the landing zone and I was not comfortable flying the model low and close to either on my first flight with her. The model was very stable throughout the flight and despite being landed with too much airspeed and bouncing about 3 times it survived and I decided that I would settle for that one successful flight on the day. Hopefully someone will post some photos of her soon.
I am looking forward to getting it into the air again soon and having many more enjoyable flights.
Thanks Fred for producing an easily built model that is nice and stable, easy to fly and is also reasonably priced.
55
Scale / Re: Annother Islandmodels 1/3 Scale Ka8b build log
« on: March 09, 2017, 18:03:37 PM »
Hi John
Yes it is sprayed, I used cellulose paint as it is easy to rectify mistakes. It took 2 coats of primer on the fuss and 1 on the wings and 4 coats of yellow and could probably take another but I don't want to keep adding weight, the red only required 2 coats to get a reasonable finish. I am happy with the finish considering that this is the first time I have used a spray gun.
Joe
Yes it is sprayed, I used cellulose paint as it is easy to rectify mistakes. It took 2 coats of primer on the fuss and 1 on the wings and 4 coats of yellow and could probably take another but I don't want to keep adding weight, the red only required 2 coats to get a reasonable finish. I am happy with the finish considering that this is the first time I have used a spray gun.
Joe
56
Scale / Re: Annother Islandmodels 1/3 Scale Ka8b build log
« on: March 08, 2017, 22:41:02 PM »
Ralph
The horns that I am using for the ailerons are similar to the ones that John has recommended, they are listed as 3mm x 50mm
Heavy duty horns.
The horns that I am using for the ailerons are similar to the ones that John has recommended, they are listed as 3mm x 50mm
Heavy duty horns.
57
Scale / Re: Annother Islandmodels 1/3 Scale Ka8b build log
« on: March 07, 2017, 18:52:55 PM »
Hi Ralph,
I have not yet fitted the control horns and linkages to the ailerons it is one of the few jobs left to do, glue aileron hinges and fit control horns and linkage and put decals on the wings and she is ready for first flight. I plan on using 3mm x 25mm horns and clevises from Hobby King. I will be using 2mm stainless steel pushrods.
The elevator is operated by 2 x HS85 mg servos here I have used Medium sized Kavan plastic horns and again 2mm stainless steel pushrods.
The rudder horn is home made from 2mm Glass sheeting.
Fred
Can you advise as to what the control throws should be?
Looking forward to hopefully maiden the K8 at the weekend
I have not yet fitted the control horns and linkages to the ailerons it is one of the few jobs left to do, glue aileron hinges and fit control horns and linkage and put decals on the wings and she is ready for first flight. I plan on using 3mm x 25mm horns and clevises from Hobby King. I will be using 2mm stainless steel pushrods.
The elevator is operated by 2 x HS85 mg servos here I have used Medium sized Kavan plastic horns and again 2mm stainless steel pushrods.
The rudder horn is home made from 2mm Glass sheeting.
Fred
Can you advise as to what the control throws should be?
Looking forward to hopefully maiden the K8 at the weekend
58
Scale / Re: Annother Islandmodels 1/3 Scale Ka8b build log
« on: March 06, 2017, 00:52:00 AM »
Hi All,
I have at long last despite the weather managed to complete the paint job and cg rechecked. Just some small little bits left to do and hopefully she will be ready to fly next weekend weather permitting.
See you at Mt Leinster
Joe
I have at long last despite the weather managed to complete the paint job and cg rechecked. Just some small little bits left to do and hopefully she will be ready to fly next weekend weather permitting.
See you at Mt Leinster
Joe
59
Scale / Re: 1/3rd ka8b build log
« on: January 28, 2017, 19:34:23 PM »
Hi Mick
Congrats on the successful maiden, I must say the model looks very well and I also like the colours. Hope you have many a long and enjoyable flights with it.
What servos have you used to operate the air brakes? Could it be that something is binding on the brakes when they are being pushed back by the airflow? Let me know what you find just in case I have a similar issue to resolve on mine prior to painting.
Joe
Congrats on the successful maiden, I must say the model looks very well and I also like the colours. Hope you have many a long and enjoyable flights with it.
What servos have you used to operate the air brakes? Could it be that something is binding on the brakes when they are being pushed back by the airflow? Let me know what you find just in case I have a similar issue to resolve on mine prior to painting.
Joe
60
Scale / Re: Annother Islandmodels 1/3 Scale Ka8b build log
« on: January 25, 2017, 10:13:00 AM »
Thanks Mick,
Did you get to fly yours yet?
Did you get to fly yours yet?