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How hard would it be to convert a glider into an powered electric aircraft?

How hard would it be to convert a glider into an powered electric aircraft?

I'm thinking of building a balloon-launched glider, is this idea plausible?Why do glider licences have fewer restrictions than powered aircraft?Feasibility of using secondary props to generate power on an electric model aircraftHow can we calculate the benefit gained from taping glider wing roots?Does a “take-off” assist make sense for electric aircraft?For slow-flying ultralights, how would a delta wing compare to a biplane layout of equal wing area?

2

$begingroup$

How hard would it be to convert a glider into an powered electric aircraft?
I'm thinking something that looks like this:

Would it be as simple as mounting two electric motors and props to the wings and plugging it into power the electronics and a battery system?
Any thoughts?

glider electric-engine

share|improve this question

edited 4 hours ago

Pondlife

53.1k10146303

asked 9 hours ago

Daniel CaoiliDaniel Caoili

141118

$endgroup$

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  How hard is it to convert a carriage to a automobile?
  $endgroup$
  – user3528438
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  i think that might actually be harder because you would have to make a linkage between the engine and wheels. With a glider its a direct motor to air transmission.
  $endgroup$
  – Daniel Caoili
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  I guess ill just have to try and find out ;)
  $endgroup$
  – Daniel Caoili
  4 hours ago
  

  
  
  
  

add a comment | 

2

$begingroup$

How hard would it be to convert a glider into an powered electric aircraft?
I'm thinking something that looks like this:

Would it be as simple as mounting two electric motors and props to the wings and plugging it into power the electronics and a battery system?
Any thoughts?

glider electric-engine

share|improve this question

edited 4 hours ago

Pondlife

53.1k10146303

asked 9 hours ago

Daniel CaoiliDaniel Caoili

141118

$endgroup$

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  How hard is it to convert a carriage to a automobile?
  $endgroup$
  – user3528438
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  $begingroup$
  i think that might actually be harder because you would have to make a linkage between the engine and wheels. With a glider its a direct motor to air transmission.
  $endgroup$
  – Daniel Caoili
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  I guess ill just have to try and find out ;)
  $endgroup$
  – Daniel Caoili
  4 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

How hard would it be to convert a glider into an powered electric aircraft?
I'm thinking something that looks like this:

Would it be as simple as mounting two electric motors and props to the wings and plugging it into power the electronics and a battery system?
Any thoughts?

glider electric-engine

share|improve this question

edited 4 hours ago

Pondlife

53.1k10146303

asked 9 hours ago

Daniel CaoiliDaniel Caoili

141118

$endgroup$

share|improve this question

edited 4 hours ago

Pondlife

53.1k10146303

asked 9 hours ago

Daniel CaoiliDaniel Caoili

141118

share|improve this question

edited 4 hours ago

Pondlife

53.1k10146303

asked 9 hours ago

Daniel CaoiliDaniel Caoili

141118

edited 4 hours ago

Pondlife

53.1k10146303

edited 4 hours ago

Pondlife

53.1k10146303

asked 9 hours ago

Daniel CaoiliDaniel Caoili

141118

asked 9 hours ago

Daniel CaoiliDaniel Caoili

141118

3 Answers
3

active

oldest

votes

5

$begingroup$

"Hard" is a matter of opinion. But installing an electric motor on a glider is quite doable. You don't want to put motors on the outside, though. Would make more sense to do what most manufacturers do, put the motor on a retractable pylon behind the cockpit, with doors that open and close as needed.

share|improve this answer

answered 7 hours ago

Juan JimenezJuan Jimenez

6,0151942

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Otherwise known as a motor glider.
  $endgroup$
  – a CVn
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Sometimes. It can also be just a sustainer engine.
  $endgroup$
  – Juan Jimenez
  5 hours ago
  

  
  
  
  

add a comment | 

2

$begingroup$

Was waiting for Peter K to jump in on this one, so I'll recite some of his knowledge.

Notice the sharp nose and leading edges on the OP question photograph compared with the more blunt nose of the glider picture provided by Juan J.

The OP glider is fully optimized for Vbg and may be a little twitchy in pitch under power.
So, certainly you can power it, but to enjoy the wider speed ranges of powered flight (with a wider variety of AOA), you may wish to pick a different glider (you'll have a lot of buyers for that one). Or, if a little twitchy is OK, go for it, keeping CG and wing load limits in mind.

share|improve this answer

answered 6 hours ago

Robert DiGiovanniRobert DiGiovanni

3,5581317

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The blunt nose mainly means it will collect more bugs. The blown T-tail can be arranged to compensate for the engine pitch by giving the elevator some more positive camber. I say more because a regular glider elevator already has some camber for proper stick forces over speed.
  $endgroup$
  – Peter Kämpf
  6 hours ago
  

  
  
  
  

add a comment | 

0

$begingroup$

Unless you can put the complete propulsion system in the back seat of a two-seat glider, you will have to redesign the whole aircraft to take account of the changed mass distribution.

But if "replacing almost everything" counts as "conversion" then … yes, you could do it.

share|improve this answer

answered 32 mins ago

alephzeroalephzero

1,780512

$endgroup$

add a comment | 

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5

$begingroup$

"Hard" is a matter of opinion. But installing an electric motor on a glider is quite doable. You don't want to put motors on the outside, though. Would make more sense to do what most manufacturers do, put the motor on a retractable pylon behind the cockpit, with doors that open and close as needed.

share|improve this answer

answered 7 hours ago

Juan JimenezJuan Jimenez

6,0151942

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Otherwise known as a motor glider.
  $endgroup$
  – a CVn
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Sometimes. It can also be just a sustainer engine.
  $endgroup$
  – Juan Jimenez
  5 hours ago
  

  
  
  
  

add a comment | 

5

$begingroup$

"Hard" is a matter of opinion. But installing an electric motor on a glider is quite doable. You don't want to put motors on the outside, though. Would make more sense to do what most manufacturers do, put the motor on a retractable pylon behind the cockpit, with doors that open and close as needed.

share|improve this answer

answered 7 hours ago

Juan JimenezJuan Jimenez

6,0151942

$endgroup$

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Otherwise known as a motor glider.
  $endgroup$
  – a CVn
  6 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  $begingroup$
  Sometimes. It can also be just a sustainer engine.
  $endgroup$
  – Juan Jimenez
  5 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

"Hard" is a matter of opinion. But installing an electric motor on a glider is quite doable. You don't want to put motors on the outside, though. Would make more sense to do what most manufacturers do, put the motor on a retractable pylon behind the cockpit, with doors that open and close as needed.

share|improve this answer

answered 7 hours ago

Juan JimenezJuan Jimenez

6,0151942

$endgroup$

share|improve this answer

answered 7 hours ago

Juan JimenezJuan Jimenez

6,0151942

answered 7 hours ago

Juan JimenezJuan Jimenez

6,0151942

answered 7 hours ago

Juan JimenezJuan Jimenez

6,0151942

2

$begingroup$

Was waiting for Peter K to jump in on this one, so I'll recite some of his knowledge.

Notice the sharp nose and leading edges on the OP question photograph compared with the more blunt nose of the glider picture provided by Juan J.

The OP glider is fully optimized for Vbg and may be a little twitchy in pitch under power.
So, certainly you can power it, but to enjoy the wider speed ranges of powered flight (with a wider variety of AOA), you may wish to pick a different glider (you'll have a lot of buyers for that one). Or, if a little twitchy is OK, go for it, keeping CG and wing load limits in mind.

share|improve this answer

answered 6 hours ago

Robert DiGiovanniRobert DiGiovanni

3,5581317

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The blunt nose mainly means it will collect more bugs. The blown T-tail can be arranged to compensate for the engine pitch by giving the elevator some more positive camber. I say more because a regular glider elevator already has some camber for proper stick forces over speed.
  $endgroup$
  – Peter Kämpf
  6 hours ago
  

  
  
  
  

add a comment | 

2

$begingroup$

Was waiting for Peter K to jump in on this one, so I'll recite some of his knowledge.

Notice the sharp nose and leading edges on the OP question photograph compared with the more blunt nose of the glider picture provided by Juan J.

The OP glider is fully optimized for Vbg and may be a little twitchy in pitch under power.
So, certainly you can power it, but to enjoy the wider speed ranges of powered flight (with a wider variety of AOA), you may wish to pick a different glider (you'll have a lot of buyers for that one). Or, if a little twitchy is OK, go for it, keeping CG and wing load limits in mind.

share|improve this answer

answered 6 hours ago

Robert DiGiovanniRobert DiGiovanni

3,5581317

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The blunt nose mainly means it will collect more bugs. The blown T-tail can be arranged to compensate for the engine pitch by giving the elevator some more positive camber. I say more because a regular glider elevator already has some camber for proper stick forces over speed.
  $endgroup$
  – Peter Kämpf
  6 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

Was waiting for Peter K to jump in on this one, so I'll recite some of his knowledge.

Notice the sharp nose and leading edges on the OP question photograph compared with the more blunt nose of the glider picture provided by Juan J.

The OP glider is fully optimized for Vbg and may be a little twitchy in pitch under power.
So, certainly you can power it, but to enjoy the wider speed ranges of powered flight (with a wider variety of AOA), you may wish to pick a different glider (you'll have a lot of buyers for that one). Or, if a little twitchy is OK, go for it, keeping CG and wing load limits in mind.

share|improve this answer

answered 6 hours ago

Robert DiGiovanniRobert DiGiovanni

3,5581317

$endgroup$

share|improve this answer

answered 6 hours ago

Robert DiGiovanniRobert DiGiovanni

3,5581317

answered 6 hours ago

Robert DiGiovanniRobert DiGiovanni

3,5581317

answered 6 hours ago

Robert DiGiovanniRobert DiGiovanni

3,5581317

0

$begingroup$

Unless you can put the complete propulsion system in the back seat of a two-seat glider, you will have to redesign the whole aircraft to take account of the changed mass distribution.

But if "replacing almost everything" counts as "conversion" then … yes, you could do it.

share|improve this answer

answered 32 mins ago

alephzeroalephzero

1,780512

$endgroup$

add a comment | 

0

$begingroup$

Unless you can put the complete propulsion system in the back seat of a two-seat glider, you will have to redesign the whole aircraft to take account of the changed mass distribution.

But if "replacing almost everything" counts as "conversion" then … yes, you could do it.

share|improve this answer

answered 32 mins ago

alephzeroalephzero

1,780512

$endgroup$

add a comment | 

$begingroup$

Unless you can put the complete propulsion system in the back seat of a two-seat glider, you will have to redesign the whole aircraft to take account of the changed mass distribution.

But if "replacing almost everything" counts as "conversion" then … yes, you could do it.

share|improve this answer

answered 32 mins ago

alephzeroalephzero

1,780512

$endgroup$

share|improve this answer

answered 32 mins ago

alephzeroalephzero

1,780512

answered 32 mins ago

alephzeroalephzero

1,780512

answered 32 mins ago

alephzeroalephzero

1,780512